summaryrefslogtreecommitdiffstats
path: root/src/osdc
diff options
context:
space:
mode:
Diffstat (limited to 'src/osdc')
-rw-r--r--src/osdc/CMakeLists.txt11
-rw-r--r--src/osdc/Filer.cc487
-rw-r--r--src/osdc/Filer.h300
-rw-r--r--src/osdc/Journaler.cc1631
-rw-r--r--src/osdc/Journaler.h545
-rw-r--r--src/osdc/ObjectCacher.cc2807
-rw-r--r--src/osdc/ObjectCacher.h781
-rw-r--r--src/osdc/Objecter.cc5429
-rw-r--r--src/osdc/Objecter.h3924
-rw-r--r--src/osdc/Striper.cc537
-rw-r--r--src/osdc/Striper.h132
-rw-r--r--src/osdc/StriperTypes.h48
-rw-r--r--src/osdc/WritebackHandler.h57
-rw-r--r--src/osdc/error_code.cc166
-rw-r--r--src/osdc/error_code.h56
15 files changed, 16911 insertions, 0 deletions
diff --git a/src/osdc/CMakeLists.txt b/src/osdc/CMakeLists.txt
new file mode 100644
index 000000000..205ad3d4f
--- /dev/null
+++ b/src/osdc/CMakeLists.txt
@@ -0,0 +1,11 @@
+set(osdc_files
+ Filer.cc
+ ObjectCacher.cc
+ Objecter.cc
+ error_code.cc
+ Striper.cc)
+add_library(osdc STATIC ${osdc_files})
+target_link_libraries(osdc ceph-common)
+if(WITH_EVENTTRACE)
+ add_dependencies(osdc eventtrace_tp)
+endif()
diff --git a/src/osdc/Filer.cc b/src/osdc/Filer.cc
new file mode 100644
index 000000000..0b12df1a4
--- /dev/null
+++ b/src/osdc/Filer.cc
@@ -0,0 +1,487 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+
+#include <mutex>
+#include <algorithm>
+#include "Filer.h"
+#include "osd/OSDMap.h"
+#include "Striper.h"
+
+#include "messages/MOSDOp.h"
+#include "messages/MOSDOpReply.h"
+#include "messages/MOSDMap.h"
+
+#include "msg/Messenger.h"
+
+#include "include/Context.h"
+
+#include "common/Finisher.h"
+#include "common/config.h"
+
+#define dout_subsys ceph_subsys_filer
+#undef dout_prefix
+#define dout_prefix *_dout << objecter->messenger->get_myname() << ".filer "
+
+using std::hex;
+using std::dec;
+using std::vector;
+
+class Filer::C_Probe : public Context {
+public:
+ Filer *filer;
+ Probe *probe;
+ object_t oid;
+ uint64_t size;
+ ceph::real_time mtime;
+ C_Probe(Filer *f, Probe *p, object_t o) : filer(f), probe(p), oid(o),
+ size(0) {}
+ void finish(int r) override {
+ if (r == -ENOENT) {
+ r = 0;
+ ceph_assert(size == 0);
+ }
+
+ bool probe_complete;
+ {
+ Probe::unique_lock pl(probe->lock);
+ if (r != 0) {
+ probe->err = r;
+ }
+
+ probe_complete = filer->_probed(probe, oid, size, mtime, pl);
+ ceph_assert(!pl.owns_lock());
+ }
+ if (probe_complete) {
+ probe->onfinish->complete(probe->err);
+ delete probe;
+ }
+ }
+};
+
+int Filer::probe(inodeno_t ino,
+ const file_layout_t *layout,
+ snapid_t snapid,
+ uint64_t start_from,
+ uint64_t *end, // LB, when !fwd
+ ceph::real_time *pmtime,
+ bool fwd,
+ int flags,
+ Context *onfinish)
+{
+ ldout(cct, 10) << "probe " << (fwd ? "fwd ":"bwd ")
+ << hex << ino << dec
+ << " starting from " << start_from
+ << dendl;
+
+ ceph_assert(snapid); // (until there is a non-NOSNAP write)
+
+ Probe *probe = new Probe(ino, *layout, snapid, start_from, end, pmtime,
+ flags, fwd, onfinish);
+
+ return probe_impl(probe, layout, start_from, end);
+}
+
+int Filer::probe(inodeno_t ino,
+ const file_layout_t *layout,
+ snapid_t snapid,
+ uint64_t start_from,
+ uint64_t *end, // LB, when !fwd
+ utime_t *pmtime,
+ bool fwd,
+ int flags,
+ Context *onfinish)
+{
+ ldout(cct, 10) << "probe " << (fwd ? "fwd ":"bwd ")
+ << hex << ino << dec
+ << " starting from " << start_from
+ << dendl;
+
+ ceph_assert(snapid); // (until there is a non-NOSNAP write)
+
+ Probe *probe = new Probe(ino, *layout, snapid, start_from, end, pmtime,
+ flags, fwd, onfinish);
+ return probe_impl(probe, layout, start_from, end);
+}
+
+int Filer::probe_impl(Probe* probe, const file_layout_t *layout,
+ uint64_t start_from, uint64_t *end) // LB, when !fwd
+{
+ // period (bytes before we jump unto a new set of object(s))
+ uint64_t period = layout->get_period();
+
+ // start with 1+ periods.
+ probe->probing_len = period;
+ if (probe->fwd) {
+ if (start_from % period)
+ probe->probing_len += period - (start_from % period);
+ } else {
+ ceph_assert(start_from > *end);
+ if (start_from % period)
+ probe->probing_len -= period - (start_from % period);
+ probe->probing_off -= probe->probing_len;
+ }
+
+ Probe::unique_lock pl(probe->lock);
+ _probe(probe, pl);
+ ceph_assert(!pl.owns_lock());
+
+ return 0;
+}
+
+
+
+/**
+ * probe->lock must be initially locked, this function will release it
+ */
+void Filer::_probe(Probe *probe, Probe::unique_lock& pl)
+{
+ ceph_assert(pl.owns_lock() && pl.mutex() == &probe->lock);
+
+ ldout(cct, 10) << "_probe " << hex << probe->ino << dec
+ << " " << probe->probing_off << "~" << probe->probing_len
+ << dendl;
+
+ // map range onto objects
+ probe->known_size.clear();
+ probe->probing.clear();
+ Striper::file_to_extents(cct, probe->ino, &probe->layout, probe->probing_off,
+ probe->probing_len, 0, probe->probing);
+
+ std::vector<ObjectExtent> stat_extents;
+ for (auto p = probe->probing.begin(); p != probe->probing.end(); ++p) {
+ ldout(cct, 10) << "_probe probing " << p->oid << dendl;
+ probe->ops.insert(p->oid);
+ stat_extents.push_back(*p);
+ }
+
+ pl.unlock();
+ for (std::vector<ObjectExtent>::iterator i = stat_extents.begin();
+ i != stat_extents.end(); ++i) {
+ C_Probe *c = new C_Probe(this, probe, i->oid);
+ objecter->stat(i->oid, i->oloc, probe->snapid, &c->size, &c->mtime,
+ probe->flags | CEPH_OSD_FLAG_RWORDERED,
+ new C_OnFinisher(c, finisher));
+ }
+}
+
+/**
+ * probe->lock must be initially held, and will be released by this function.
+ *
+ * @return true if probe is complete and Probe object may be freed.
+ */
+bool Filer::_probed(Probe *probe, const object_t& oid, uint64_t size,
+ ceph::real_time mtime, Probe::unique_lock& pl)
+{
+ ceph_assert(pl.owns_lock() && pl.mutex() == &probe->lock);
+
+ ldout(cct, 10) << "_probed " << probe->ino << " object " << oid
+ << " has size " << size << " mtime " << mtime << dendl;
+
+ probe->known_size[oid] = size;
+ if (mtime > probe->max_mtime)
+ probe->max_mtime = mtime;
+
+ ceph_assert(probe->ops.count(oid));
+ probe->ops.erase(oid);
+
+ if (!probe->ops.empty()) {
+ pl.unlock();
+ return false; // waiting for more!
+ }
+
+ if (probe->err) { // we hit an error, propagate back up
+ pl.unlock();
+ return true;
+ }
+
+ // analyze!
+ uint64_t end = 0;
+
+ if (!probe->fwd) {
+ std::reverse(probe->probing.begin(), probe->probing.end());
+ }
+
+ for (auto p = probe->probing.begin(); p != probe->probing.end(); ++p) {
+ uint64_t shouldbe = p->length + p->offset;
+ ldout(cct, 10) << "_probed " << probe->ino << " object " << hex
+ << p->oid << dec << " should be " << shouldbe
+ << ", actual is " << probe->known_size[p->oid]
+ << dendl;
+
+ if (!probe->found_size) {
+ ceph_assert(probe->known_size[p->oid] <= shouldbe);
+
+ if ((probe->fwd && probe->known_size[p->oid] == shouldbe) ||
+ (!probe->fwd && probe->known_size[p->oid] == 0 &&
+ probe->probing_off > 0))
+ continue; // keep going
+
+ // aha, we found the end!
+ // calc offset into buffer_extent to get distance from probe->from.
+ uint64_t oleft = probe->known_size[p->oid] - p->offset;
+ for (auto i = p->buffer_extents.begin();
+ i != p->buffer_extents.end();
+ ++i) {
+ if (oleft <= (uint64_t)i->second) {
+ end = probe->probing_off + i->first + oleft;
+ ldout(cct, 10) << "_probed end is in buffer_extent " << i->first
+ << "~" << i->second << " off " << oleft
+ << ", from was " << probe->probing_off << ", end is "
+ << end << dendl;
+
+ probe->found_size = true;
+ ldout(cct, 10) << "_probed found size at " << end << dendl;
+ *probe->psize = end;
+
+ if (!probe->pmtime &&
+ !probe->pumtime) // stop if we don't need mtime too
+ break;
+ }
+ oleft -= i->second;
+ }
+ }
+ break;
+ }
+
+ if (!probe->found_size || (probe->probing_off && (probe->pmtime ||
+ probe->pumtime))) {
+ // keep probing!
+ ldout(cct, 10) << "_probed probing further" << dendl;
+
+ uint64_t period = probe->layout.get_period();
+ if (probe->fwd) {
+ probe->probing_off += probe->probing_len;
+ ceph_assert(probe->probing_off % period == 0);
+ probe->probing_len = period;
+ } else {
+ // previous period.
+ ceph_assert(probe->probing_off % period == 0);
+ probe->probing_len = period;
+ probe->probing_off -= period;
+ }
+ _probe(probe, pl);
+ ceph_assert(!pl.owns_lock());
+ return false;
+ } else if (probe->pmtime) {
+ ldout(cct, 10) << "_probed found mtime " << probe->max_mtime << dendl;
+ *probe->pmtime = probe->max_mtime;
+ } else if (probe->pumtime) {
+ ldout(cct, 10) << "_probed found mtime " << probe->max_mtime << dendl;
+ *probe->pumtime = ceph::real_clock::to_ceph_timespec(probe->max_mtime);
+ }
+ // done!
+ pl.unlock();
+ return true;
+}
+
+
+// -----------------------
+
+struct PurgeRange {
+ std::mutex lock;
+ typedef std::lock_guard<std::mutex> lock_guard;
+ typedef std::unique_lock<std::mutex> unique_lock;
+ inodeno_t ino;
+ file_layout_t layout;
+ SnapContext snapc;
+ uint64_t first, num;
+ ceph::real_time mtime;
+ int flags;
+ Context *oncommit;
+ int uncommitted;
+ int err = 0;
+ PurgeRange(inodeno_t i, const file_layout_t& l, const SnapContext& sc,
+ uint64_t fo, uint64_t no, ceph::real_time t, int fl,
+ Context *fin)
+ : ino(i), layout(l), snapc(sc), first(fo), num(no), mtime(t), flags(fl),
+ oncommit(fin), uncommitted(0) {}
+};
+
+int Filer::purge_range(inodeno_t ino,
+ const file_layout_t *layout,
+ const SnapContext& snapc,
+ uint64_t first_obj, uint64_t num_obj,
+ ceph::real_time mtime,
+ int flags,
+ Context *oncommit)
+{
+ ceph_assert(num_obj > 0);
+
+ // single object? easy!
+ if (num_obj == 1) {
+ object_t oid = file_object_t(ino, first_obj);
+ object_locator_t oloc = OSDMap::file_to_object_locator(*layout);
+ ldout(cct, 10) << "purge_range removing " << oid << dendl;
+ objecter->remove(oid, oloc, snapc, mtime, flags, oncommit);
+ return 0;
+ }
+
+ PurgeRange *pr = new PurgeRange(ino, *layout, snapc, first_obj,
+ num_obj, mtime, flags, oncommit);
+
+ _do_purge_range(pr, 0, 0);
+ return 0;
+}
+
+struct C_PurgeRange : public Context {
+ Filer *filer;
+ PurgeRange *pr;
+ C_PurgeRange(Filer *f, PurgeRange *p) : filer(f), pr(p) {}
+ void finish(int r) override {
+ filer->_do_purge_range(pr, 1, r);
+ }
+};
+
+void Filer::_do_purge_range(PurgeRange *pr, int fin, int err)
+{
+ PurgeRange::unique_lock prl(pr->lock);
+ if (err && err != -ENOENT)
+ pr->err = err;
+ pr->uncommitted -= fin;
+ ldout(cct, 10) << "_do_purge_range " << pr->ino << " objects " << pr->first
+ << "~" << pr->num << " uncommitted " << pr->uncommitted
+ << dendl;
+
+ if (pr->num == 0 && pr->uncommitted == 0) {
+ pr->oncommit->complete(pr->err);
+ prl.unlock();
+ delete pr;
+ return;
+ }
+
+ std::vector<object_t> remove_oids;
+
+ int max = cct->_conf->filer_max_purge_ops - pr->uncommitted;
+ while (pr->num > 0 && max > 0) {
+ remove_oids.push_back(file_object_t(pr->ino, pr->first));
+ pr->uncommitted++;
+ pr->first++;
+ pr->num--;
+ max--;
+ }
+ prl.unlock();
+
+ // Issue objecter ops outside pr->lock to avoid lock dependency loop
+ for (const auto& oid : remove_oids) {
+ object_locator_t oloc = OSDMap::file_to_object_locator(pr->layout);
+ objecter->remove(oid, oloc, pr->snapc, pr->mtime, pr->flags,
+ new C_OnFinisher(new C_PurgeRange(this, pr), finisher));
+ }
+}
+
+// -----------------------
+struct TruncRange {
+ std::mutex lock;
+ typedef std::lock_guard<std::mutex> lock_guard;
+ typedef std::unique_lock<std::mutex> unique_lock;
+ inodeno_t ino;
+ file_layout_t layout;
+ SnapContext snapc;
+ ceph::real_time mtime;
+ int flags;
+ Context *oncommit;
+ int uncommitted;
+ uint64_t offset;
+ uint64_t length;
+ uint32_t truncate_seq;
+ TruncRange(inodeno_t i, const file_layout_t& l, const SnapContext& sc,
+ ceph::real_time t, int fl, Context *fin,
+ uint64_t off, uint64_t len, uint32_t ts)
+ : ino(i), layout(l), snapc(sc), mtime(t), flags(fl), oncommit(fin),
+ uncommitted(0), offset(off), length(len), truncate_seq(ts) {}
+};
+
+void Filer::truncate(inodeno_t ino,
+ const file_layout_t *layout,
+ const SnapContext& snapc,
+ uint64_t offset,
+ uint64_t len,
+ __u32 truncate_seq,
+ ceph::real_time mtime,
+ int flags,
+ Context *oncommit)
+{
+ uint64_t period = layout->get_period();
+ uint64_t num_objs = Striper::get_num_objects(*layout, len + (offset % period));
+ if (num_objs == 1) {
+ vector<ObjectExtent> extents;
+ Striper::file_to_extents(cct, ino, layout, offset, len, 0, extents);
+ osdc_opvec ops(1);
+ ops[0].op.op = CEPH_OSD_OP_TRIMTRUNC;
+ ops[0].op.extent.truncate_seq = truncate_seq;
+ ops[0].op.extent.truncate_size = extents[0].offset;
+ objecter->_modify(extents[0].oid, extents[0].oloc, ops, mtime, snapc,
+ flags, oncommit);
+ return;
+ }
+
+ if (len > 0 && (offset + len) % period)
+ len += period - ((offset + len) % period);
+
+ TruncRange *tr = new TruncRange(ino, *layout, snapc, mtime, flags, oncommit,
+ offset, len, truncate_seq);
+ _do_truncate_range(tr, 0);
+}
+
+struct C_TruncRange : public Context {
+ Filer *filer;
+ TruncRange *tr;
+ C_TruncRange(Filer *f, TruncRange *t) : filer(f), tr(t) {}
+ void finish(int r) override {
+ filer->_do_truncate_range(tr, 1);
+ }
+};
+
+void Filer::_do_truncate_range(TruncRange *tr, int fin)
+{
+ TruncRange::unique_lock trl(tr->lock);
+ tr->uncommitted -= fin;
+ ldout(cct, 10) << "_do_truncate_range " << tr->ino << " objects " << tr->offset
+ << "~" << tr->length << " uncommitted " << tr->uncommitted
+ << dendl;
+
+ if (tr->length == 0 && tr->uncommitted == 0) {
+ tr->oncommit->complete(0);
+ trl.unlock();
+ delete tr;
+ return;
+ }
+
+ vector<ObjectExtent> extents;
+
+ int max = cct->_conf->filer_max_truncate_ops - tr->uncommitted;
+ if (max > 0 && tr->length > 0) {
+ uint64_t len = tr->layout.get_period() * max;
+ if (len > tr->length)
+ len = tr->length;
+
+ uint64_t offset = tr->offset + tr->length - len;
+ Striper::file_to_extents(cct, tr->ino, &tr->layout, offset, len, 0, extents);
+ tr->uncommitted += extents.size();
+ tr->length -= len;
+ }
+
+ trl.unlock();
+
+ // Issue objecter ops outside tr->lock to avoid lock dependency loop
+ for (const auto& p : extents) {
+ osdc_opvec ops(1);
+ ops[0].op.op = CEPH_OSD_OP_TRIMTRUNC;
+ ops[0].op.extent.truncate_size = p.offset;
+ ops[0].op.extent.truncate_seq = tr->truncate_seq;
+ objecter->_modify(p.oid, p.oloc, ops, tr->mtime, tr->snapc, tr->flags,
+ new C_OnFinisher(new C_TruncRange(this, tr), finisher));
+ }
+}
diff --git a/src/osdc/Filer.h b/src/osdc/Filer.h
new file mode 100644
index 000000000..42cf9e998
--- /dev/null
+++ b/src/osdc/Filer.h
@@ -0,0 +1,300 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+
+#ifndef CEPH_FILER_H
+#define CEPH_FILER_H
+
+/*** Filer
+ *
+ * stripe file ranges onto objects.
+ * build list<ObjectExtent> for the objecter or objectcacher.
+ *
+ * also, provide convenience methods that call objecter for you.
+ *
+ * "files" are identified by ino.
+ */
+
+
+#include <mutex>
+
+#include "include/types.h"
+
+#include "common/ceph_time.h"
+
+#include "osd/OSDMap.h"
+#include "Objecter.h"
+#include "Striper.h"
+
+class Context;
+class Messenger;
+class OSDMap;
+class Finisher;
+
+
+/**** Filer interface ***/
+
+class Filer {
+ CephContext *cct;
+ Objecter *objecter;
+ Finisher *finisher;
+
+ // probes
+ struct Probe {
+ std::mutex lock;
+ typedef std::lock_guard<std::mutex> lock_guard;
+ typedef std::unique_lock<std::mutex> unique_lock;
+ inodeno_t ino;
+ file_layout_t layout;
+ snapid_t snapid;
+
+ uint64_t *psize;
+ ceph::real_time *pmtime;
+ utime_t *pumtime;
+
+ int flags;
+
+ bool fwd;
+
+ Context *onfinish;
+
+ std::vector<ObjectExtent> probing;
+ uint64_t probing_off, probing_len;
+
+ std::map<object_t, uint64_t> known_size;
+ ceph::real_time max_mtime;
+
+ std::set<object_t> ops;
+
+ int err;
+ bool found_size;
+
+ Probe(inodeno_t i, const file_layout_t &l, snapid_t sn,
+ uint64_t f, uint64_t *e, ceph::real_time *m, int fl, bool fw,
+ Context *c) :
+ ino(i), layout(l), snapid(sn),
+ psize(e), pmtime(m), pumtime(nullptr), flags(fl), fwd(fw), onfinish(c),
+ probing_off(f), probing_len(0),
+ err(0), found_size(false) {}
+
+ Probe(inodeno_t i, const file_layout_t &l, snapid_t sn,
+ uint64_t f, uint64_t *e, utime_t *m, int fl, bool fw,
+ Context *c) :
+ ino(i), layout(l), snapid(sn),
+ psize(e), pmtime(nullptr), pumtime(m), flags(fl), fwd(fw),
+ onfinish(c), probing_off(f), probing_len(0),
+ err(0), found_size(false) {}
+ };
+
+ class C_Probe;
+
+ void _probe(Probe *p, Probe::unique_lock& pl);
+ bool _probed(Probe *p, const object_t& oid, uint64_t size,
+ ceph::real_time mtime, Probe::unique_lock& pl);
+
+ public:
+ Filer(const Filer& other);
+ const Filer operator=(const Filer& other);
+
+ Filer(Objecter *o, Finisher *f) : cct(o->cct), objecter(o), finisher(f) {}
+ ~Filer() {}
+
+ bool is_active() {
+ return objecter->is_active(); // || (oc && oc->is_active());
+ }
+
+
+ /*** async file interface. scatter/gather as needed. ***/
+
+ void read(inodeno_t ino,
+ const file_layout_t *layout,
+ snapid_t snap,
+ uint64_t offset,
+ uint64_t len,
+ ceph::buffer::list *bl, // ptr to data
+ int flags,
+ Context *onfinish,
+ int op_flags = 0) {
+ ceph_assert(snap); // (until there is a non-NOSNAP write)
+ std::vector<ObjectExtent> extents;
+ Striper::file_to_extents(cct, ino, layout, offset, len, 0, extents);
+ objecter->sg_read(extents, snap, bl, flags, onfinish, op_flags);
+ }
+
+ void read_trunc(inodeno_t ino,
+ const file_layout_t *layout,
+ snapid_t snap,
+ uint64_t offset,
+ uint64_t len,
+ ceph::buffer::list *bl, // ptr to data
+ int flags,
+ uint64_t truncate_size,
+ __u32 truncate_seq,
+ Context *onfinish,
+ int op_flags = 0) {
+ ceph_assert(snap); // (until there is a non-NOSNAP write)
+ std::vector<ObjectExtent> extents;
+ Striper::file_to_extents(cct, ino, layout, offset, len, truncate_size,
+ extents);
+ objecter->sg_read_trunc(extents, snap, bl, flags,
+ truncate_size, truncate_seq, onfinish, op_flags);
+ }
+
+ void write(inodeno_t ino,
+ const file_layout_t *layout,
+ const SnapContext& snapc,
+ uint64_t offset,
+ uint64_t len,
+ ceph::buffer::list& bl,
+ ceph::real_time mtime,
+ int flags,
+ Context *oncommit,
+ int op_flags = 0) {
+ std::vector<ObjectExtent> extents;
+ Striper::file_to_extents(cct, ino, layout, offset, len, 0, extents);
+ objecter->sg_write(extents, snapc, bl, mtime, flags, oncommit, op_flags);
+ }
+
+ void write_trunc(inodeno_t ino,
+ const file_layout_t *layout,
+ const SnapContext& snapc,
+ uint64_t offset,
+ uint64_t len,
+ ceph::buffer::list& bl,
+ ceph::real_time mtime,
+ int flags,
+ uint64_t truncate_size,
+ __u32 truncate_seq,
+ Context *oncommit,
+ int op_flags = 0) {
+ std::vector<ObjectExtent> extents;
+ Striper::file_to_extents(cct, ino, layout, offset, len, truncate_size,
+ extents);
+ objecter->sg_write_trunc(extents, snapc, bl, mtime, flags,
+ truncate_size, truncate_seq, oncommit, op_flags);
+ }
+
+ void truncate(inodeno_t ino,
+ const file_layout_t *layout,
+ const SnapContext& snapc,
+ uint64_t offset,
+ uint64_t len,
+ __u32 truncate_seq,
+ ceph::real_time mtime,
+ int flags,
+ Context *oncommit);
+ void _do_truncate_range(struct TruncRange *pr, int fin);
+
+ void zero(inodeno_t ino,
+ const file_layout_t *layout,
+ const SnapContext& snapc,
+ uint64_t offset,
+ uint64_t len,
+ ceph::real_time mtime,
+ int flags,
+ bool keep_first,
+ Context *oncommit) {
+ std::vector<ObjectExtent> extents;
+ Striper::file_to_extents(cct, ino, layout, offset, len, 0, extents);
+ if (extents.size() == 1) {
+ if (extents[0].offset == 0 && extents[0].length == layout->object_size
+ && (!keep_first || extents[0].objectno != 0))
+ objecter->remove(extents[0].oid, extents[0].oloc,
+ snapc, mtime, flags, oncommit);
+ else
+ objecter->zero(extents[0].oid, extents[0].oloc, extents[0].offset,
+ extents[0].length, snapc, mtime, flags, oncommit);
+ } else {
+ C_GatherBuilder gcom(cct, oncommit);
+ for (auto p = extents.begin(); p != extents.end(); ++p) {
+ if (p->offset == 0 && p->length == layout->object_size &&
+ (!keep_first || p->objectno != 0))
+ objecter->remove(p->oid, p->oloc,
+ snapc, mtime, flags,
+ oncommit ? gcom.new_sub():0);
+ else
+ objecter->zero(p->oid, p->oloc, p->offset, p->length,
+ snapc, mtime, flags,
+ oncommit ? gcom.new_sub():0);
+ }
+ gcom.activate();
+ }
+ }
+
+ void zero(inodeno_t ino,
+ const file_layout_t *layout,
+ const SnapContext& snapc,
+ uint64_t offset,
+ uint64_t len,
+ ceph::real_time mtime,
+ int flags,
+ Context *oncommit) {
+ zero(ino, layout,
+ snapc, offset,
+ len, mtime,
+ flags, false,
+ oncommit);
+ }
+ // purge range of ino.### objects
+ int purge_range(inodeno_t ino,
+ const file_layout_t *layout,
+ const SnapContext& snapc,
+ uint64_t first_obj, uint64_t num_obj,
+ ceph::real_time mtime,
+ int flags, Context *oncommit);
+ void _do_purge_range(struct PurgeRange *pr, int fin, int err);
+
+ /*
+ * probe
+ * specify direction,
+ * and whether we stop when we find data, or hole.
+ */
+ int probe(inodeno_t ino,
+ const file_layout_t *layout,
+ snapid_t snapid,
+ uint64_t start_from,
+ uint64_t *end,
+ ceph::real_time *mtime,
+ bool fwd,
+ int flags,
+ Context *onfinish);
+
+ int probe(inodeno_t ino,
+ const file_layout_t *layout,
+ snapid_t snapid,
+ uint64_t start_from,
+ uint64_t *end,
+ bool fwd,
+ int flags,
+ Context *onfinish) {
+ return probe(ino, layout, snapid, start_from, end,
+ (ceph::real_time* )0, fwd, flags, onfinish);
+ }
+
+ int probe(inodeno_t ino,
+ const file_layout_t *layout,
+ snapid_t snapid,
+ uint64_t start_from,
+ uint64_t *end,
+ utime_t *mtime,
+ bool fwd,
+ int flags,
+ Context *onfinish);
+
+private:
+ int probe_impl(Probe* probe, const file_layout_t *layout,
+ uint64_t start_from, uint64_t *end);
+};
+
+#endif // !CEPH_FILER_H
diff --git a/src/osdc/Journaler.cc b/src/osdc/Journaler.cc
new file mode 100644
index 000000000..04b90fb59
--- /dev/null
+++ b/src/osdc/Journaler.cc
@@ -0,0 +1,1631 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+#include "common/perf_counters.h"
+#include "common/dout.h"
+#include "include/Context.h"
+#include "msg/Messenger.h"
+#include "osdc/Journaler.h"
+#include "common/errno.h"
+#include "include/ceph_assert.h"
+#include "common/Finisher.h"
+
+#define dout_subsys ceph_subsys_journaler
+#undef dout_prefix
+#define dout_prefix *_dout << objecter->messenger->get_myname() \
+ << ".journaler." << name << (readonly ? "(ro) ":"(rw) ")
+
+using namespace std;
+using std::chrono::seconds;
+
+
+class Journaler::C_DelayFlush : public Context {
+ Journaler *journaler;
+ public:
+ explicit C_DelayFlush(Journaler *j) : journaler(j) {}
+ void finish(int r) override {
+ journaler->_do_delayed_flush();
+ }
+};
+
+void Journaler::set_readonly()
+{
+ lock_guard l(lock);
+
+ ldout(cct, 1) << "set_readonly" << dendl;
+ readonly = true;
+}
+
+void Journaler::set_writeable()
+{
+ lock_guard l(lock);
+
+ ldout(cct, 1) << "set_writeable" << dendl;
+ readonly = false;
+}
+
+void Journaler::create(file_layout_t *l, stream_format_t const sf)
+{
+ lock_guard lk(lock);
+
+ ceph_assert(!readonly);
+ state = STATE_ACTIVE;
+
+ stream_format = sf;
+ journal_stream.set_format(sf);
+ _set_layout(l);
+
+ prezeroing_pos = prezero_pos = write_pos = flush_pos =
+ safe_pos = read_pos = requested_pos = received_pos =
+ expire_pos = trimming_pos = trimmed_pos =
+ next_safe_pos = layout.get_period();
+
+ ldout(cct, 1) << "created blank journal at inode 0x" << std::hex << ino
+ << std::dec << ", format=" << stream_format << dendl;
+}
+
+void Journaler::set_layout(file_layout_t const *l)
+{
+ lock_guard lk(lock);
+ _set_layout(l);
+}
+
+void Journaler::_set_layout(file_layout_t const *l)
+{
+ layout = *l;
+
+ if (layout.pool_id != pg_pool) {
+ // user can reset pool id through cephfs-journal-tool
+ lderr(cct) << "may got older pool id from header layout" << dendl;
+ ceph_abort();
+ }
+ last_written.layout = layout;
+ last_committed.layout = layout;
+
+ // prefetch intelligently.
+ // (watch out, this is big if you use big objects or weird striping)
+ uint64_t periods = cct->_conf.get_val<uint64_t>("journaler_prefetch_periods");
+ fetch_len = layout.get_period() * periods;
+}
+
+
+/***************** HEADER *******************/
+
+ostream& operator<<(ostream &out, const Journaler::Header &h)
+{
+ return out << "loghead(trim " << h.trimmed_pos
+ << ", expire " << h.expire_pos
+ << ", write " << h.write_pos
+ << ", stream_format " << (int)(h.stream_format)
+ << ")";
+}
+
+class Journaler::C_ReadHead : public Context {
+ Journaler *ls;
+public:
+ bufferlist bl;
+ explicit C_ReadHead(Journaler *l) : ls(l) {}
+ void finish(int r) override {
+ ls->_finish_read_head(r, bl);
+ }
+};
+
+class Journaler::C_RereadHead : public Context {
+ Journaler *ls;
+ Context *onfinish;
+public:
+ bufferlist bl;
+ C_RereadHead(Journaler *l, Context *onfinish_) : ls (l),
+ onfinish(onfinish_) {}
+ void finish(int r) override {
+ ls->_finish_reread_head(r, bl, onfinish);
+ }
+};
+
+class Journaler::C_ProbeEnd : public Context {
+ Journaler *ls;
+public:
+ uint64_t end;
+ explicit C_ProbeEnd(Journaler *l) : ls(l), end(-1) {}
+ void finish(int r) override {
+ ls->_finish_probe_end(r, end);
+ }
+};
+
+class Journaler::C_ReProbe : public Context {
+ Journaler *ls;
+ C_OnFinisher *onfinish;
+public:
+ uint64_t end;
+ C_ReProbe(Journaler *l, C_OnFinisher *onfinish_) :
+ ls(l), onfinish(onfinish_), end(0) {}
+ void finish(int r) override {
+ ls->_finish_reprobe(r, end, onfinish);
+ }
+};
+
+void Journaler::recover(Context *onread)
+{
+ lock_guard l(lock);
+ if (is_stopping()) {
+ onread->complete(-EAGAIN);
+ return;
+ }
+
+ ldout(cct, 1) << "recover start" << dendl;
+ ceph_assert(state != STATE_ACTIVE);
+ ceph_assert(readonly);
+
+ if (onread)
+ waitfor_recover.push_back(wrap_finisher(onread));
+
+ if (state != STATE_UNDEF) {
+ ldout(cct, 1) << "recover - already recovering" << dendl;
+ return;
+ }
+
+ ldout(cct, 1) << "read_head" << dendl;
+ state = STATE_READHEAD;
+ C_ReadHead *fin = new C_ReadHead(this);
+ _read_head(fin, &fin->bl);
+}
+
+void Journaler::_read_head(Context *on_finish, bufferlist *bl)
+{
+ // lock is locked
+ ceph_assert(state == STATE_READHEAD || state == STATE_REREADHEAD);
+
+ object_t oid = file_object_t(ino, 0);
+ object_locator_t oloc(pg_pool);
+ objecter->read_full(oid, oloc, CEPH_NOSNAP, bl, 0, wrap_finisher(on_finish));
+}
+
+void Journaler::reread_head(Context *onfinish)
+{
+ lock_guard l(lock);
+ _reread_head(wrap_finisher(onfinish));
+}
+
+/**
+ * Re-read the head from disk, and set the write_pos, expire_pos, trimmed_pos
+ * from the on-disk header. This switches the state to STATE_REREADHEAD for
+ * the duration, and you shouldn't start a re-read while other operations are
+ * in-flight, nor start other operations while a re-read is in progress.
+ * Also, don't call this until the Journaler has finished its recovery and has
+ * gone STATE_ACTIVE!
+ */
+void Journaler::_reread_head(Context *onfinish)
+{
+ ldout(cct, 10) << "reread_head" << dendl;
+ ceph_assert(state == STATE_ACTIVE);
+
+ state = STATE_REREADHEAD;
+ C_RereadHead *fin = new C_RereadHead(this, onfinish);
+ _read_head(fin, &fin->bl);
+}
+
+void Journaler::_finish_reread_head(int r, bufferlist& bl, Context *finish)
+{
+ lock_guard l(lock);
+ if (is_stopping()) {
+ finish->complete(-EAGAIN);
+ return;
+ }
+
+ //read on-disk header into
+ ceph_assert(bl.length() || r < 0 );
+
+ // unpack header
+ if (r == 0) {
+ Header h;
+ auto p = bl.cbegin();
+ try {
+ decode(h, p);
+ } catch (const buffer::error &e) {
+ finish->complete(-EINVAL);
+ return;
+ }
+ prezeroing_pos = prezero_pos = write_pos = flush_pos = safe_pos = next_safe_pos
+ = h.write_pos;
+ expire_pos = h.expire_pos;
+ trimmed_pos = trimming_pos = h.trimmed_pos;
+ init_headers(h);
+ state = STATE_ACTIVE;
+ }
+
+ finish->complete(r);
+}
+
+void Journaler::_finish_read_head(int r, bufferlist& bl)
+{
+ lock_guard l(lock);
+ if (is_stopping())
+ return;
+
+ ceph_assert(state == STATE_READHEAD);
+
+ if (r!=0) {
+ ldout(cct, 0) << "error getting journal off disk" << dendl;
+ list<Context*> ls;
+ ls.swap(waitfor_recover);
+ finish_contexts(cct, ls, r);
+ return;
+ }
+
+ if (bl.length() == 0) {
+ ldout(cct, 1) << "_finish_read_head r=" << r
+ << " read 0 bytes, assuming empty log" << dendl;
+ state = STATE_ACTIVE;
+ list<Context*> ls;
+ ls.swap(waitfor_recover);
+ finish_contexts(cct, ls, 0);
+ return;
+ }
+
+ // unpack header
+ bool corrupt = false;
+ Header h;
+ auto p = bl.cbegin();
+ try {
+ decode(h, p);
+
+ if (h.magic != magic) {
+ ldout(cct, 0) << "on disk magic '" << h.magic << "' != my magic '"
+ << magic << "'" << dendl;
+ corrupt = true;
+ } else if (h.write_pos < h.expire_pos || h.expire_pos < h.trimmed_pos) {
+ ldout(cct, 0) << "Corrupt header (bad offsets): " << h << dendl;
+ corrupt = true;
+ }
+ } catch (const buffer::error &e) {
+ corrupt = true;
+ }
+
+ if (corrupt) {
+ list<Context*> ls;
+ ls.swap(waitfor_recover);
+ finish_contexts(cct, ls, -EINVAL);
+ return;
+ }
+
+ prezeroing_pos = prezero_pos = write_pos = flush_pos = safe_pos = next_safe_pos
+ = h.write_pos;
+ read_pos = requested_pos = received_pos = expire_pos = h.expire_pos;
+ trimmed_pos = trimming_pos = h.trimmed_pos;
+
+ init_headers(h);
+ _set_layout(&h.layout);
+ stream_format = h.stream_format;
+ journal_stream.set_format(h.stream_format);
+
+ ldout(cct, 1) << "_finish_read_head " << h
+ << ". probing for end of log (from " << write_pos << ")..."
+ << dendl;
+ C_ProbeEnd *fin = new C_ProbeEnd(this);
+ state = STATE_PROBING;
+ _probe(fin, &fin->end);
+}
+
+void Journaler::_probe(Context *finish, uint64_t *end)
+{
+ // lock is locked
+ ldout(cct, 1) << "probing for end of the log" << dendl;
+ ceph_assert(state == STATE_PROBING || state == STATE_REPROBING);
+ // probe the log
+ filer.probe(ino, &layout, CEPH_NOSNAP,
+ write_pos, end, true, 0, wrap_finisher(finish));
+}
+
+void Journaler::_reprobe(C_OnFinisher *finish)
+{
+ ldout(cct, 10) << "reprobe" << dendl;
+ ceph_assert(state == STATE_ACTIVE);
+
+ state = STATE_REPROBING;
+ C_ReProbe *fin = new C_ReProbe(this, finish);
+ _probe(fin, &fin->end);
+}
+
+
+void Journaler::_finish_reprobe(int r, uint64_t new_end,
+ C_OnFinisher *onfinish)
+{
+ lock_guard l(lock);
+ if (is_stopping()) {
+ onfinish->complete(-EAGAIN);
+ return;
+ }
+
+ ceph_assert(new_end >= write_pos || r < 0);
+ ldout(cct, 1) << "_finish_reprobe new_end = " << new_end
+ << " (header had " << write_pos << ")."
+ << dendl;
+ prezeroing_pos = prezero_pos = write_pos = flush_pos = safe_pos = next_safe_pos = new_end;
+ state = STATE_ACTIVE;
+ onfinish->complete(r);
+}
+
+void Journaler::_finish_probe_end(int r, uint64_t end)
+{
+ lock_guard l(lock);
+ if (is_stopping())
+ return;
+
+ ceph_assert(state == STATE_PROBING);
+ if (r < 0) { // error in probing
+ goto out;
+ }
+ if (((int64_t)end) == -1) {
+ end = write_pos;
+ ldout(cct, 1) << "_finish_probe_end write_pos = " << end << " (header had "
+ << write_pos << "). log was empty. recovered." << dendl;
+ ceph_abort(); // hrm.
+ } else {
+ ceph_assert(end >= write_pos);
+ ldout(cct, 1) << "_finish_probe_end write_pos = " << end
+ << " (header had " << write_pos << "). recovered."
+ << dendl;
+ }
+
+ state = STATE_ACTIVE;
+
+ prezeroing_pos = prezero_pos = write_pos = flush_pos = safe_pos = next_safe_pos = end;
+
+out:
+ // done.
+ list<Context*> ls;
+ ls.swap(waitfor_recover);
+ finish_contexts(cct, ls, r);
+}
+
+class Journaler::C_RereadHeadProbe : public Context
+{
+ Journaler *ls;
+ C_OnFinisher *final_finish;
+public:
+ C_RereadHeadProbe(Journaler *l, C_OnFinisher *finish) :
+ ls(l), final_finish(finish) {}
+ void finish(int r) override {
+ ls->_finish_reread_head_and_probe(r, final_finish);
+ }
+};
+
+void Journaler::reread_head_and_probe(Context *onfinish)
+{
+ lock_guard l(lock);
+
+ ceph_assert(state == STATE_ACTIVE);
+ _reread_head(new C_RereadHeadProbe(this, wrap_finisher(onfinish)));
+}
+
+void Journaler::_finish_reread_head_and_probe(int r, C_OnFinisher *onfinish)
+{
+ // Expect to be called back from finish_reread_head, which already takes lock
+ // lock is locked
+ if (is_stopping()) {
+ onfinish->complete(-EAGAIN);
+ return;
+ }
+
+ // Let the caller know that the operation has failed or was intentionally
+ // failed since the caller has been blocklisted.
+ if (r == -EBLOCKLISTED) {
+ onfinish->complete(r);
+ return;
+ }
+
+ ceph_assert(!r); //if we get an error, we're boned
+ _reprobe(onfinish);
+}
+
+
+// WRITING
+
+class Journaler::C_WriteHead : public Context {
+public:
+ Journaler *ls;
+ Header h;
+ C_OnFinisher *oncommit;
+ C_WriteHead(Journaler *l, Header& h_, C_OnFinisher *c) : ls(l), h(h_),
+ oncommit(c) {}
+ void finish(int r) override {
+ ls->_finish_write_head(r, h, oncommit);
+ }
+};
+
+void Journaler::write_head(Context *oncommit)
+{
+ lock_guard l(lock);
+ _write_head(oncommit);
+}
+
+
+void Journaler::_write_head(Context *oncommit)
+{
+ ceph_assert(!readonly);
+ ceph_assert(state == STATE_ACTIVE);
+ last_written.trimmed_pos = trimmed_pos;
+ last_written.expire_pos = expire_pos;
+ last_written.unused_field = expire_pos;
+ last_written.write_pos = safe_pos;
+ last_written.stream_format = stream_format;
+ ldout(cct, 10) << "write_head " << last_written << dendl;
+
+ // Avoid persisting bad pointers in case of bugs
+ ceph_assert(last_written.write_pos >= last_written.expire_pos);
+ ceph_assert(last_written.expire_pos >= last_written.trimmed_pos);
+
+ last_wrote_head = ceph::real_clock::now();
+
+ bufferlist bl;
+ encode(last_written, bl);
+ SnapContext snapc;
+
+ object_t oid = file_object_t(ino, 0);
+ object_locator_t oloc(pg_pool);
+ objecter->write_full(oid, oloc, snapc, bl, ceph::real_clock::now(), 0,
+ wrap_finisher(new C_WriteHead(
+ this, last_written,
+ wrap_finisher(oncommit))),
+ 0, 0, write_iohint);
+}
+
+void Journaler::_finish_write_head(int r, Header &wrote,
+ C_OnFinisher *oncommit)
+{
+ lock_guard l(lock);
+
+ if (r < 0) {
+ lderr(cct) << "_finish_write_head got " << cpp_strerror(r) << dendl;
+ handle_write_error(r);
+ return;
+ }
+ ceph_assert(!readonly);
+ ldout(cct, 10) << "_finish_write_head " << wrote << dendl;
+ last_committed = wrote;
+ if (oncommit) {
+ oncommit->complete(r);
+ }
+
+ _trim(); // trim?
+}
+
+
+/***************** WRITING *******************/
+
+class Journaler::C_Flush : public Context {
+ Journaler *ls;
+ uint64_t start;
+ ceph::real_time stamp;
+public:
+ C_Flush(Journaler *l, int64_t s, ceph::real_time st)
+ : ls(l), start(s), stamp(st) {}
+ void finish(int r) override {
+ ls->_finish_flush(r, start, stamp);
+ }
+};
+
+void Journaler::_finish_flush(int r, uint64_t start, ceph::real_time stamp)
+{
+ lock_guard l(lock);
+ ceph_assert(!readonly);
+
+ if (r < 0) {
+ lderr(cct) << "_finish_flush got " << cpp_strerror(r) << dendl;
+ handle_write_error(r);
+ return;
+ }
+
+ ceph_assert(start < flush_pos);
+
+ // calc latency?
+ if (logger) {
+ ceph::timespan lat = ceph::real_clock::now() - stamp;
+ logger->tinc(logger_key_lat, lat);
+ }
+
+ // adjust safe_pos
+ auto it = pending_safe.find(start);
+ ceph_assert(it != pending_safe.end());
+ uint64_t min_next_safe_pos = pending_safe.begin()->second;
+ pending_safe.erase(it);
+ if (pending_safe.empty())
+ safe_pos = next_safe_pos;
+ else
+ safe_pos = min_next_safe_pos;
+
+ ldout(cct, 10) << "_finish_flush safe from " << start
+ << ", pending_safe " << pending_safe
+ << ", (prezeroing/prezero)/write/flush/safe positions now "
+ << "(" << prezeroing_pos << "/" << prezero_pos << ")/"
+ << write_pos << "/" << flush_pos << "/" << safe_pos
+ << dendl;
+
+ // kick waiters <= safe_pos
+ if (!waitfor_safe.empty()) {
+ list<Context*> ls;
+ while (!waitfor_safe.empty()) {
+ auto it = waitfor_safe.begin();
+ if (it->first > safe_pos)
+ break;
+ ls.splice(ls.end(), it->second);
+ waitfor_safe.erase(it);
+ }
+ finish_contexts(cct, ls);
+ }
+}
+
+
+
+uint64_t Journaler::append_entry(bufferlist& bl)
+{
+ unique_lock l(lock);
+
+ ceph_assert(!readonly);
+ uint32_t s = bl.length();
+
+ // append
+ size_t delta = bl.length() + journal_stream.get_envelope_size();
+ // write_buf space is nearly full
+ if (!write_buf_throttle.get_or_fail(delta)) {
+ l.unlock();
+ ldout(cct, 10) << "write_buf_throttle wait, delta " << delta << dendl;
+ write_buf_throttle.get(delta);
+ l.lock();
+ }
+ ldout(cct, 20) << "write_buf_throttle get, delta " << delta << dendl;
+ size_t wrote = journal_stream.write(bl, &write_buf, write_pos);
+ ldout(cct, 10) << "append_entry len " << s << " to " << write_pos << "~"
+ << wrote << dendl;
+ write_pos += wrote;
+
+ // flush previous object?
+ uint64_t su = get_layout_period();
+ ceph_assert(su > 0);
+ uint64_t write_off = write_pos % su;
+ uint64_t write_obj = write_pos / su;
+ uint64_t flush_obj = flush_pos / su;
+ if (write_obj != flush_obj) {
+ ldout(cct, 10) << " flushing completed object(s) (su " << su << " wro "
+ << write_obj << " flo " << flush_obj << ")" << dendl;
+ _do_flush(write_buf.length() - write_off);
+
+ // if _do_flush() skips flushing some data, it does do a best effort to
+ // update next_safe_pos.
+ if (write_buf.length() > 0 &&
+ write_buf.length() <= wrote) { // the unflushed data are within this entry
+ // set next_safe_pos to end of previous entry
+ next_safe_pos = write_pos - wrote;
+ }
+ }
+
+ return write_pos;
+}
+
+
+void Journaler::_do_flush(unsigned amount)
+{
+ if (is_stopping())
+ return;
+ if (write_pos == flush_pos)
+ return;
+ ceph_assert(write_pos > flush_pos);
+ ceph_assert(!readonly);
+
+ // flush
+ uint64_t len = write_pos - flush_pos;
+ ceph_assert(len == write_buf.length());
+ if (amount && amount < len)
+ len = amount;
+
+ // zero at least two full periods ahead. this ensures
+ // that the next object will not exist.
+ uint64_t period = get_layout_period();
+ if (flush_pos + len + 2*period > prezero_pos) {
+ _issue_prezero();
+
+ int64_t newlen = prezero_pos - flush_pos - period;
+ if (newlen <= 0) {
+ ldout(cct, 10) << "_do_flush wanted to do " << flush_pos << "~" << len
+ << " already too close to prezero_pos " << prezero_pos
+ << ", zeroing first" << dendl;
+ waiting_for_zero_pos = flush_pos + len;
+ return;
+ }
+ if (static_cast<uint64_t>(newlen) < len) {
+ ldout(cct, 10) << "_do_flush wanted to do " << flush_pos << "~" << len
+ << " but hit prezero_pos " << prezero_pos
+ << ", will do " << flush_pos << "~" << newlen << dendl;
+ waiting_for_zero_pos = flush_pos + len;
+ len = newlen;
+ }
+ }
+ ldout(cct, 10) << "_do_flush flushing " << flush_pos << "~" << len << dendl;
+
+ // submit write for anything pending
+ // flush _start_ pos to _finish_flush
+ ceph::real_time now = ceph::real_clock::now();
+ SnapContext snapc;
+
+ Context *onsafe = new C_Flush(this, flush_pos, now); // on COMMIT
+ pending_safe[flush_pos] = next_safe_pos;
+
+ bufferlist write_bl;
+
+ // adjust pointers
+ if (len == write_buf.length()) {
+ write_bl.swap(write_buf);
+ next_safe_pos = write_pos;
+ } else {
+ write_buf.splice(0, len, &write_bl);
+ // Keys of waitfor_safe map are journal entry boundaries.
+ // Try finding a journal entry that we are actually flushing
+ // and set next_safe_pos to end of it. This is best effort.
+ // The one we found may not be the lastest flushing entry.
+ auto p = waitfor_safe.lower_bound(flush_pos + len);
+ if (p != waitfor_safe.end()) {
+ if (p->first > flush_pos + len && p != waitfor_safe.begin())
+ --p;
+ if (p->first <= flush_pos + len && p->first > next_safe_pos)
+ next_safe_pos = p->first;
+ }
+ }
+
+ filer.write(ino, &layout, snapc,
+ flush_pos, len, write_bl, ceph::real_clock::now(),
+ 0,
+ wrap_finisher(onsafe), write_iohint);
+
+ flush_pos += len;
+ ceph_assert(write_buf.length() == write_pos - flush_pos);
+ write_buf_throttle.put(len);
+ ldout(cct, 20) << "write_buf_throttle put, len " << len << dendl;
+
+ ldout(cct, 10)
+ << "_do_flush (prezeroing/prezero)/write/flush/safe pointers now at "
+ << "(" << prezeroing_pos << "/" << prezero_pos << ")/" << write_pos
+ << "/" << flush_pos << "/" << safe_pos << dendl;
+
+ _issue_prezero();
+}
+
+
+void Journaler::wait_for_flush(Context *onsafe)
+{
+ lock_guard l(lock);
+ if (is_stopping()) {
+ if (onsafe)
+ onsafe->complete(-EAGAIN);
+ return;
+ }
+ _wait_for_flush(onsafe);
+}
+
+void Journaler::_wait_for_flush(Context *onsafe)
+{
+ ceph_assert(!readonly);
+
+ // all flushed and safe?
+ if (write_pos == safe_pos) {
+ ceph_assert(write_buf.length() == 0);
+ ldout(cct, 10)
+ << "flush nothing to flush, (prezeroing/prezero)/write/flush/safe "
+ "pointers at " << "(" << prezeroing_pos << "/" << prezero_pos << ")/"
+ << write_pos << "/" << flush_pos << "/" << safe_pos << dendl;
+ if (onsafe) {
+ finisher->queue(onsafe, 0);
+ }
+ return;
+ }
+
+ // queue waiter
+ if (onsafe) {
+ waitfor_safe[write_pos].push_back(wrap_finisher(onsafe));
+ }
+}
+
+void Journaler::flush(Context *onsafe)
+{
+ lock_guard l(lock);
+ if (is_stopping()) {
+ if (onsafe)
+ onsafe->complete(-EAGAIN);
+ return;
+ }
+ _flush(wrap_finisher(onsafe));
+}
+
+void Journaler::_flush(C_OnFinisher *onsafe)
+{
+ ceph_assert(!readonly);
+
+ if (write_pos == flush_pos) {
+ ceph_assert(write_buf.length() == 0);
+ ldout(cct, 10) << "flush nothing to flush, (prezeroing/prezero)/write/"
+ "flush/safe pointers at " << "(" << prezeroing_pos << "/" << prezero_pos
+ << ")/" << write_pos << "/" << flush_pos << "/" << safe_pos
+ << dendl;
+ if (onsafe) {
+ onsafe->complete(0);
+ }
+ } else {
+ _do_flush();
+ _wait_for_flush(onsafe);
+ }
+
+ // write head?
+ if (_write_head_needed()) {
+ _write_head();
+ }
+}
+
+bool Journaler::_write_head_needed()
+{
+ return last_wrote_head + seconds(cct->_conf.get_val<int64_t>("journaler_write_head_interval"))
+ < ceph::real_clock::now();
+}
+
+
+/*************** prezeroing ******************/
+
+struct C_Journaler_Prezero : public Context {
+ Journaler *journaler;
+ uint64_t from, len;
+ C_Journaler_Prezero(Journaler *j, uint64_t f, uint64_t l)
+ : journaler(j), from(f), len(l) {}
+ void finish(int r) override {
+ journaler->_finish_prezero(r, from, len);
+ }
+};
+
+void Journaler::_issue_prezero()
+{
+ ceph_assert(prezeroing_pos >= flush_pos);
+
+ uint64_t num_periods = cct->_conf.get_val<uint64_t>("journaler_prezero_periods");
+ /*
+ * issue zero requests based on write_pos, even though the invariant
+ * is that we zero ahead of flush_pos.
+ */
+ uint64_t period = get_layout_period();
+ uint64_t to = write_pos + period * num_periods + period - 1;
+ to -= to % period;
+
+ if (prezeroing_pos >= to) {
+ ldout(cct, 20) << "_issue_prezero target " << to << " <= prezeroing_pos "
+ << prezeroing_pos << dendl;
+ return;
+ }
+
+ while (prezeroing_pos < to) {
+ uint64_t len;
+ if (prezeroing_pos % period == 0) {
+ len = period;
+ ldout(cct, 10) << "_issue_prezero removing " << prezeroing_pos << "~"
+ << period << " (full period)" << dendl;
+ } else {
+ len = period - (prezeroing_pos % period);
+ ldout(cct, 10) << "_issue_prezero zeroing " << prezeroing_pos << "~"
+ << len << " (partial period)" << dendl;
+ }
+ SnapContext snapc;
+ Context *c = wrap_finisher(new C_Journaler_Prezero(this, prezeroing_pos,
+ len));
+ filer.zero(ino, &layout, snapc, prezeroing_pos, len,
+ ceph::real_clock::now(), 0, c);
+ prezeroing_pos += len;
+ }
+}
+
+// Lock cycle because we get called out of objecter callback (holding
+// objecter read lock), but there are also cases where we take the journaler
+// lock before calling into objecter to do I/O.
+void Journaler::_finish_prezero(int r, uint64_t start, uint64_t len)
+{
+ lock_guard l(lock);
+
+ ldout(cct, 10) << "_prezeroed to " << start << "~" << len
+ << ", prezeroing/prezero was " << prezeroing_pos << "/"
+ << prezero_pos << ", pending " << pending_zero
+ << dendl;
+ if (r < 0 && r != -ENOENT) {
+ lderr(cct) << "_prezeroed got " << cpp_strerror(r) << dendl;
+ handle_write_error(r);
+ return;
+ }
+
+ ceph_assert(r == 0 || r == -ENOENT);
+
+ if (start == prezero_pos) {
+ prezero_pos += len;
+ while (!pending_zero.empty() &&
+ pending_zero.begin().get_start() == prezero_pos) {
+ interval_set<uint64_t>::iterator b(pending_zero.begin());
+ prezero_pos += b.get_len();
+ pending_zero.erase(b);
+ }
+
+ if (waiting_for_zero_pos > flush_pos) {
+ _do_flush(waiting_for_zero_pos - flush_pos);
+ }
+
+ if (prezero_pos == prezeroing_pos &&
+ !waitfor_prezero.empty()) {
+ list<Context*> ls;
+ ls.swap(waitfor_prezero);
+ finish_contexts(cct, ls, 0);
+ }
+ } else {
+ pending_zero.insert(start, len);
+ }
+ ldout(cct, 10) << "_prezeroed prezeroing/prezero now " << prezeroing_pos
+ << "/" << prezero_pos
+ << ", pending " << pending_zero
+ << dendl;
+}
+
+void Journaler::wait_for_prezero(Context *onfinish)
+{
+ ceph_assert(onfinish);
+ lock_guard l(lock);
+
+ if (prezero_pos == prezeroing_pos) {
+ finisher->queue(onfinish, 0);
+ return;
+ }
+ waitfor_prezero.push_back(wrap_finisher(onfinish));
+}
+
+
+/***************** READING *******************/
+
+
+class Journaler::C_Read : public Context {
+ Journaler *ls;
+ uint64_t offset;
+ uint64_t length;
+public:
+ bufferlist bl;
+ C_Read(Journaler *j, uint64_t o, uint64_t l) : ls(j), offset(o), length(l) {}
+ void finish(int r) override {
+ ls->_finish_read(r, offset, length, bl);
+ }
+};
+
+class Journaler::C_RetryRead : public Context {
+ Journaler *ls;
+public:
+ explicit C_RetryRead(Journaler *l) : ls(l) {}
+
+ void finish(int r) override {
+ // Should only be called from waitfor_safe i.e. already inside lock
+ // (ls->lock is locked
+ ls->_prefetch();
+ }
+};
+
+void Journaler::_finish_read(int r, uint64_t offset, uint64_t length,
+ bufferlist& bl)
+{
+ lock_guard l(lock);
+
+ if (r < 0) {
+ ldout(cct, 0) << "_finish_read got error " << r << dendl;
+ error = r;
+ } else {
+ ldout(cct, 10) << "_finish_read got " << offset << "~" << bl.length()
+ << dendl;
+ if (bl.length() < length) {
+ ldout(cct, 0) << "_finish_read got less than expected (" << length << ")"
+ << dendl;
+ error = -EINVAL;
+ }
+ }
+
+ if (error) {
+ if (on_readable) {
+ C_OnFinisher *f = on_readable;
+ on_readable = 0;
+ f->complete(error);
+ }
+ return;
+ }
+
+ prefetch_buf[offset].swap(bl);
+
+ try {
+ _assimilate_prefetch();
+ } catch (const buffer::error &err) {
+ lderr(cct) << "_decode error from assimilate_prefetch" << dendl;
+ error = -EINVAL;
+ if (on_readable) {
+ C_OnFinisher *f = on_readable;
+ on_readable = 0;
+ f->complete(error);
+ }
+ return;
+ }
+ _prefetch();
+}
+
+void Journaler::_assimilate_prefetch()
+{
+ bool was_readable = readable;
+
+ bool got_any = false;
+ while (!prefetch_buf.empty()) {
+ map<uint64_t,bufferlist>::iterator p = prefetch_buf.begin();
+ if (p->first != received_pos) {
+ uint64_t gap = p->first - received_pos;
+ ldout(cct, 10) << "_assimilate_prefetch gap of " << gap
+ << " from received_pos " << received_pos
+ << " to first prefetched buffer " << p->first << dendl;
+ break;
+ }
+
+ ldout(cct, 10) << "_assimilate_prefetch " << p->first << "~"
+ << p->second.length() << dendl;
+ received_pos += p->second.length();
+ read_buf.claim_append(p->second);
+ ceph_assert(received_pos <= requested_pos);
+ prefetch_buf.erase(p);
+ got_any = true;
+ }
+
+ if (got_any) {
+ ldout(cct, 10) << "_assimilate_prefetch read_buf now " << read_pos << "~"
+ << read_buf.length() << ", read pointers read_pos=" << read_pos
+ << " received_pos=" << received_pos << " requested_pos=" << requested_pos
+ << dendl;
+
+ // Update readability (this will also hit any decode errors resulting
+ // from bad data)
+ readable = _have_next_entry();
+ }
+
+ if ((got_any && !was_readable && readable) || read_pos == write_pos) {
+ // readable!
+ ldout(cct, 10) << "_finish_read now readable (or at journal end) readable="
+ << readable << " read_pos=" << read_pos << " write_pos="
+ << write_pos << dendl;
+ if (on_readable) {
+ C_OnFinisher *f = on_readable;
+ on_readable = 0;
+ f->complete(0);
+ }
+ }
+}
+
+void Journaler::_issue_read(uint64_t len)
+{
+ // stuck at safe_pos? (this is needed if we are reading the tail of
+ // a journal we are also writing to)
+ ceph_assert(requested_pos <= safe_pos);
+ if (requested_pos == safe_pos) {
+ ldout(cct, 10) << "_issue_read requested_pos = safe_pos = " << safe_pos
+ << ", waiting" << dendl;
+ ceph_assert(write_pos > requested_pos);
+ if (pending_safe.empty()) {
+ _flush(NULL);
+ }
+
+ // Make sure keys of waitfor_safe map are journal entry boundaries.
+ // The key we used here is either next_safe_pos or old value of
+ // next_safe_pos. next_safe_pos is always set to journal entry
+ // boundary.
+ auto p = pending_safe.rbegin();
+ if (p != pending_safe.rend())
+ waitfor_safe[p->second].push_back(new C_RetryRead(this));
+ else
+ waitfor_safe[next_safe_pos].push_back(new C_RetryRead(this));
+ return;
+ }
+
+ // don't read too much
+ if (requested_pos + len > safe_pos) {
+ len = safe_pos - requested_pos;
+ ldout(cct, 10) << "_issue_read reading only up to safe_pos " << safe_pos
+ << dendl;
+ }
+
+ // go.
+ ldout(cct, 10) << "_issue_read reading " << requested_pos << "~" << len
+ << ", read pointers read_pos=" << read_pos << " received_pos=" << received_pos
+ << " requested_pos+len=" << (requested_pos+len) << dendl;
+
+ // step by period (object). _don't_ do a single big filer.read()
+ // here because it will wait for all object reads to complete before
+ // giving us back any data. this way we can process whatever bits
+ // come in that are contiguous.
+ uint64_t period = get_layout_period();
+ while (len > 0) {
+ uint64_t e = requested_pos + period;
+ e -= e % period;
+ uint64_t l = e - requested_pos;
+ if (l > len)
+ l = len;
+ C_Read *c = new C_Read(this, requested_pos, l);
+ filer.read(ino, &layout, CEPH_NOSNAP, requested_pos, l, &c->bl, 0,
+ wrap_finisher(c), CEPH_OSD_OP_FLAG_FADVISE_DONTNEED);
+ requested_pos += l;
+ len -= l;
+ }
+}
+
+void Journaler::_prefetch()
+{
+ if (is_stopping())
+ return;
+
+ ldout(cct, 10) << "_prefetch" << dendl;
+ // prefetch
+ uint64_t pf;
+ if (temp_fetch_len) {
+ ldout(cct, 10) << "_prefetch temp_fetch_len " << temp_fetch_len << dendl;
+ pf = temp_fetch_len;
+ temp_fetch_len = 0;
+ } else {
+ pf = fetch_len;
+ }
+
+ uint64_t raw_target = read_pos + pf;
+
+ // read full log segments, so increase if necessary
+ uint64_t period = get_layout_period();
+ uint64_t remainder = raw_target % period;
+ uint64_t adjustment = remainder ? period - remainder : 0;
+ uint64_t target = raw_target + adjustment;
+
+ // don't read past the log tail
+ if (target > write_pos)
+ target = write_pos;
+
+ if (requested_pos < target) {
+ uint64_t len = target - requested_pos;
+ ldout(cct, 10) << "_prefetch " << pf << " requested_pos " << requested_pos
+ << " < target " << target << " (" << raw_target
+ << "), prefetching " << len << dendl;
+
+ if (pending_safe.empty() && write_pos > safe_pos) {
+ // If we are reading and writing the journal, then we may need
+ // to issue a flush if one isn't already in progress.
+ // Avoid doing a flush every time so that if we do write/read/write/read
+ // we don't end up flushing after every write.
+ ldout(cct, 10) << "_prefetch: requested_pos=" << requested_pos
+ << ", read_pos=" << read_pos
+ << ", write_pos=" << write_pos
+ << ", safe_pos=" << safe_pos << dendl;
+ _do_flush();
+ }
+
+ _issue_read(len);
+ }
+}
+
+
+/*
+ * _have_next_entry() - return true if next entry is ready.
+ */
+bool Journaler::_have_next_entry()
+{
+ // anything to read?
+ if (read_pos == write_pos)
+ return false;
+
+ // Check if the retrieve bytestream has enough for an entry
+ uint64_t need;
+ if (journal_stream.readable(read_buf, &need)) {
+ return true;
+ }
+
+ ldout (cct, 10) << "_have_next_entry read_buf.length() == " << read_buf.length()
+ << ", but need " << need << " for next entry; fetch_len is "
+ << fetch_len << dendl;
+
+ // partial fragment at the end?
+ if (received_pos == write_pos) {
+ ldout(cct, 10) << "_have_next_entry() detected partial entry at tail, "
+ "adjusting write_pos to " << read_pos << dendl;
+
+ // adjust write_pos
+ prezeroing_pos = prezero_pos = write_pos = flush_pos = safe_pos = next_safe_pos = read_pos;
+ ceph_assert(write_buf.length() == 0);
+ ceph_assert(waitfor_safe.empty());
+
+ // reset read state
+ requested_pos = received_pos = read_pos;
+ read_buf.clear();
+
+ // FIXME: truncate on disk?
+
+ return false;
+ }
+
+ if (need > fetch_len) {
+ temp_fetch_len = need;
+ ldout(cct, 10) << "_have_next_entry noting temp_fetch_len " << temp_fetch_len
+ << dendl;
+ }
+
+ ldout(cct, 10) << "_have_next_entry: not readable, returning false" << dendl;
+ return false;
+}
+
+/*
+ * is_readable() - kickstart prefetch, too
+ */
+bool Journaler::is_readable()
+{
+ lock_guard l(lock);
+ return _is_readable();
+}
+
+bool Journaler::_is_readable()
+{
+ if (error != 0) {
+ return false;
+ }
+
+ bool r = readable;
+ _prefetch();
+ return r;
+}
+
+class Journaler::C_EraseFinish : public Context {
+ Journaler *journaler;
+ C_OnFinisher *completion;
+ public:
+ C_EraseFinish(Journaler *j, C_OnFinisher *c) : journaler(j), completion(c) {}
+ void finish(int r) override {
+ journaler->_finish_erase(r, completion);
+ }
+};
+
+/**
+ * Entirely erase the journal, including header. For use when you
+ * have already made a copy of the journal somewhere else.
+ */
+void Journaler::erase(Context *completion)
+{
+ lock_guard l(lock);
+
+ // Async delete the journal data
+ uint64_t first = trimmed_pos / get_layout_period();
+ uint64_t num = (write_pos - trimmed_pos) / get_layout_period() + 2;
+ filer.purge_range(ino, &layout, SnapContext(), first, num,
+ ceph::real_clock::now(), 0,
+ wrap_finisher(new C_EraseFinish(
+ this, wrap_finisher(completion))));
+
+ // We will not start the operation to delete the header until
+ // _finish_erase has seen the data deletion succeed: otherwise if
+ // there was an error deleting data we might prematurely delete the
+ // header thereby lose our reference to the data.
+}
+
+void Journaler::_finish_erase(int data_result, C_OnFinisher *completion)
+{
+ lock_guard l(lock);
+ if (is_stopping()) {
+ completion->complete(-EAGAIN);
+ return;
+ }
+
+ if (data_result == 0) {
+ // Async delete the journal header
+ filer.purge_range(ino, &layout, SnapContext(), 0, 1,
+ ceph::real_clock::now(),
+ 0, wrap_finisher(completion));
+ } else {
+ lderr(cct) << "Failed to delete journal " << ino << " data: "
+ << cpp_strerror(data_result) << dendl;
+ completion->complete(data_result);
+ }
+}
+
+/* try_read_entry(bl)
+ * read entry into bl if it's ready.
+ * otherwise, do nothing.
+ */
+bool Journaler::try_read_entry(bufferlist& bl)
+{
+ lock_guard l(lock);
+
+ if (!readable) {
+ ldout(cct, 10) << "try_read_entry at " << read_pos << " not readable"
+ << dendl;
+ return false;
+ }
+
+ uint64_t start_ptr;
+ size_t consumed;
+ try {
+ consumed = journal_stream.read(read_buf, &bl, &start_ptr);
+ if (stream_format >= JOURNAL_FORMAT_RESILIENT) {
+ ceph_assert(start_ptr == read_pos);
+ }
+ } catch (const buffer::error &e) {
+ lderr(cct) << __func__ << ": decode error from journal_stream" << dendl;
+ error = -EINVAL;
+ return false;
+ }
+
+ ldout(cct, 10) << "try_read_entry at " << read_pos << " read "
+ << read_pos << "~" << consumed << " (have "
+ << read_buf.length() << ")" << dendl;
+
+ read_pos += consumed;
+ try {
+ // We were readable, we might not be any more
+ readable = _have_next_entry();
+ } catch (const buffer::error &e) {
+ lderr(cct) << __func__ << ": decode error from _have_next_entry" << dendl;
+ error = -EINVAL;
+ return false;
+ }
+
+ // prefetch?
+ _prefetch();
+
+ // If bufferlist consists of discontiguous memory, decoding types whose
+ // denc_traits needs contiguous memory is inefficient. The bufferlist may
+ // get copied to temporary memory multiple times (copy_shallow() in
+ // src/include/denc.h actually does deep copy)
+ if (bl.get_num_buffers() > 1)
+ bl.rebuild();
+ return true;
+}
+
+void Journaler::wait_for_readable(Context *onreadable)
+{
+ lock_guard l(lock);
+ _wait_for_readable(onreadable);
+}
+
+void Journaler::_wait_for_readable(Context *onreadable)
+{
+ if (is_stopping()) {
+ finisher->queue(onreadable, -EAGAIN);
+ return;
+ }
+
+ ceph_assert(on_readable == 0);
+ if (!readable) {
+ ldout(cct, 10) << "wait_for_readable at " << read_pos << " onreadable "
+ << onreadable << dendl;
+ on_readable = wrap_finisher(onreadable);
+ } else {
+ // race with OSD reply
+ finisher->queue(onreadable, 0);
+ }
+}
+
+bool Journaler::have_waiter() const
+{
+ return on_readable != nullptr;
+}
+
+
+
+
+/***************** TRIMMING *******************/
+
+
+class Journaler::C_Trim : public Context {
+ Journaler *ls;
+ uint64_t to;
+public:
+ C_Trim(Journaler *l, int64_t t) : ls(l), to(t) {}
+ void finish(int r) override {
+ ls->_finish_trim(r, to);
+ }
+};
+
+void Journaler::trim()
+{
+ lock_guard l(lock);
+ _trim();
+}
+
+void Journaler::_trim()
+{
+ if (is_stopping())
+ return;
+
+ ceph_assert(!readonly);
+ uint64_t period = get_layout_period();
+ uint64_t trim_to = last_committed.expire_pos;
+ trim_to -= trim_to % period;
+ ldout(cct, 10) << "trim last_commited head was " << last_committed
+ << ", can trim to " << trim_to
+ << dendl;
+ if (trim_to == 0 || trim_to == trimming_pos) {
+ ldout(cct, 10) << "trim already trimmed/trimming to "
+ << trimmed_pos << "/" << trimming_pos << dendl;
+ return;
+ }
+
+ if (trimming_pos > trimmed_pos) {
+ ldout(cct, 10) << "trim already trimming atm, try again later. "
+ "trimmed/trimming is " << trimmed_pos << "/" << trimming_pos << dendl;
+ return;
+ }
+
+ // trim
+ ceph_assert(trim_to <= write_pos);
+ ceph_assert(trim_to <= expire_pos);
+ ceph_assert(trim_to > trimming_pos);
+ ldout(cct, 10) << "trim trimming to " << trim_to
+ << ", trimmed/trimming/expire are "
+ << trimmed_pos << "/" << trimming_pos << "/" << expire_pos
+ << dendl;
+
+ // delete range of objects
+ uint64_t first = trimming_pos / period;
+ uint64_t num = (trim_to - trimming_pos) / period;
+ SnapContext snapc;
+ filer.purge_range(ino, &layout, snapc, first, num,
+ ceph::real_clock::now(), 0,
+ wrap_finisher(new C_Trim(this, trim_to)));
+ trimming_pos = trim_to;
+}
+
+void Journaler::_finish_trim(int r, uint64_t to)
+{
+ lock_guard l(lock);
+
+ ceph_assert(!readonly);
+ ldout(cct, 10) << "_finish_trim trimmed_pos was " << trimmed_pos
+ << ", trimmed/trimming/expire now "
+ << to << "/" << trimming_pos << "/" << expire_pos
+ << dendl;
+ if (r < 0 && r != -ENOENT) {
+ lderr(cct) << "_finish_trim got " << cpp_strerror(r) << dendl;
+ handle_write_error(r);
+ return;
+ }
+
+ ceph_assert(r >= 0 || r == -ENOENT);
+
+ ceph_assert(to <= trimming_pos);
+ ceph_assert(to > trimmed_pos);
+ trimmed_pos = to;
+}
+
+void Journaler::handle_write_error(int r)
+{
+ // lock is locked
+
+ lderr(cct) << "handle_write_error " << cpp_strerror(r) << dendl;
+ if (on_write_error) {
+ on_write_error->complete(r);
+ on_write_error = NULL;
+ called_write_error = true;
+ } else if (called_write_error) {
+ /* We don't call error handler more than once, subsequent errors
+ * are dropped -- this is okay as long as the error handler does
+ * something dramatic like respawn */
+ lderr(cct) << __func__ << ": multiple write errors, handler already called"
+ << dendl;
+ } else {
+ ceph_abort_msg("unhandled write error");
+ }
+}
+
+
+/**
+ * Test whether the 'read_buf' byte stream has enough data to read
+ * an entry
+ *
+ * sets 'next_envelope_size' to the number of bytes needed to advance (enough
+ * to get the next header if header was unavailable, or enough to get the whole
+ * next entry if the header was available but the body wasn't).
+ */
+bool JournalStream::readable(bufferlist &read_buf, uint64_t *need) const
+{
+ ceph_assert(need != NULL);
+
+ uint32_t entry_size = 0;
+ uint64_t entry_sentinel = 0;
+ auto p = read_buf.cbegin();
+
+ // Do we have enough data to decode an entry prefix?
+ if (format >= JOURNAL_FORMAT_RESILIENT) {
+ *need = sizeof(entry_size) + sizeof(entry_sentinel);
+ } else {
+ *need = sizeof(entry_size);
+ }
+ if (read_buf.length() >= *need) {
+ if (format >= JOURNAL_FORMAT_RESILIENT) {
+ decode(entry_sentinel, p);
+ if (entry_sentinel != sentinel) {
+ throw buffer::malformed_input("Invalid sentinel");
+ }
+ }
+
+ decode(entry_size, p);
+ } else {
+ return false;
+ }
+
+ // Do we have enough data to decode an entry prefix, payload and suffix?
+ if (format >= JOURNAL_FORMAT_RESILIENT) {
+ *need = JOURNAL_ENVELOPE_RESILIENT + entry_size;
+ } else {
+ *need = JOURNAL_ENVELOPE_LEGACY + entry_size;
+ }
+ if (read_buf.length() >= *need) {
+ return true; // No more bytes needed
+ }
+
+ return false;
+}
+
+
+/**
+ * Consume one entry from a journal byte stream 'from', splicing a
+ * serialized LogEvent blob into 'entry'.
+ *
+ * 'entry' must be non null and point to an empty bufferlist.
+ *
+ * 'from' must contain sufficient valid data (i.e. readable is true).
+ *
+ * 'start_ptr' will be set to the entry's start pointer, if the collection
+ * format provides it. It may not be null.
+ *
+ * @returns The number of bytes consumed from the `from` byte stream. Note
+ * that this is not equal to the length of `entry`, which contains
+ * the inner serialized LogEvent and not the envelope.
+ */
+size_t JournalStream::read(bufferlist &from, bufferlist *entry,
+ uint64_t *start_ptr)
+{
+ ceph_assert(start_ptr != NULL);
+ ceph_assert(entry != NULL);
+ ceph_assert(entry->length() == 0);
+
+ uint32_t entry_size = 0;
+
+ // Consume envelope prefix: entry_size and entry_sentinel
+ auto from_ptr = from.cbegin();
+ if (format >= JOURNAL_FORMAT_RESILIENT) {
+ uint64_t entry_sentinel = 0;
+ decode(entry_sentinel, from_ptr);
+ // Assertion instead of clean check because of precondition of this
+ // fn is that readable() already passed
+ ceph_assert(entry_sentinel == sentinel);
+ }
+ decode(entry_size, from_ptr);
+
+ // Read out the payload
+ from_ptr.copy(entry_size, *entry);
+
+ // Consume the envelope suffix (start_ptr)
+ if (format >= JOURNAL_FORMAT_RESILIENT) {
+ decode(*start_ptr, from_ptr);
+ } else {
+ *start_ptr = 0;
+ }
+
+ // Trim the input buffer to discard the bytes we have consumed
+ from.splice(0, from_ptr.get_off());
+
+ return from_ptr.get_off();
+}
+
+
+/**
+ * Append one entry
+ */
+size_t JournalStream::write(bufferlist &entry, bufferlist *to,
+ uint64_t const &start_ptr)
+{
+ ceph_assert(to != NULL);
+
+ uint32_t const entry_size = entry.length();
+ if (format >= JOURNAL_FORMAT_RESILIENT) {
+ encode(sentinel, *to);
+ }
+ encode(entry_size, *to);
+ to->claim_append(entry);
+ if (format >= JOURNAL_FORMAT_RESILIENT) {
+ encode(start_ptr, *to);
+ }
+
+ if (format >= JOURNAL_FORMAT_RESILIENT) {
+ return JOURNAL_ENVELOPE_RESILIENT + entry_size;
+ } else {
+ return JOURNAL_ENVELOPE_LEGACY + entry_size;
+ }
+}
+
+/**
+ * set write error callback
+ *
+ * Set a callback/context to trigger if we get a write error from
+ * the objecter. This may be from an explicit request (e.g., flush)
+ * or something async the journaler did on its own (e.g., journal
+ * header update).
+ *
+ * It is only used once; if the caller continues to use the
+ * Journaler and wants to hear about errors, it needs to reset the
+ * error_handler.
+ *
+ * @param c callback/context to trigger on error
+ */
+void Journaler::set_write_error_handler(Context *c) {
+ lock_guard l(lock);
+ ceph_assert(!on_write_error);
+ on_write_error = wrap_finisher(c);
+ called_write_error = false;
+}
+
+
+/**
+ * Wrap a context in a C_OnFinisher, if it is non-NULL
+ *
+ * Utility function to avoid lots of error-prone and verbose
+ * NULL checking on contexts passed in.
+ */
+C_OnFinisher *Journaler::wrap_finisher(Context *c)
+{
+ if (c != NULL) {
+ return new C_OnFinisher(c, finisher);
+ } else {
+ return NULL;
+ }
+}
+
+void Journaler::shutdown()
+{
+ lock_guard l(lock);
+
+ ldout(cct, 1) << __func__ << dendl;
+
+ state = STATE_STOPPING;
+ readable = false;
+
+ // Kick out anyone reading from journal
+ error = -EAGAIN;
+ if (on_readable) {
+ C_OnFinisher *f = on_readable;
+ on_readable = 0;
+ f->complete(-EAGAIN);
+ }
+
+ list<Context*> ls;
+ ls.swap(waitfor_recover);
+ finish_contexts(cct, ls, -ESHUTDOWN);
+
+ std::map<uint64_t, std::list<Context*> >::iterator i;
+ for (i = waitfor_safe.begin(); i != waitfor_safe.end(); ++i) {
+ finish_contexts(cct, i->second, -EAGAIN);
+ }
+ waitfor_safe.clear();
+}
+
+void Journaler::check_isreadable()
+{
+ std::unique_lock l(lock);
+ while (!_is_readable() &&
+ get_read_pos() < get_write_pos() &&
+ !get_error()) {
+ C_SaferCond readable_waiter;
+ _wait_for_readable(&readable_waiter);
+ l.unlock();
+ readable_waiter.wait();
+ l.lock();
+ }
+ return ;
+}
diff --git a/src/osdc/Journaler.h b/src/osdc/Journaler.h
new file mode 100644
index 000000000..1b40eadec
--- /dev/null
+++ b/src/osdc/Journaler.h
@@ -0,0 +1,545 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+/* Journaler
+ *
+ * This class stripes a serial log over objects on the store. Four
+ * logical pointers:
+ *
+ * write_pos - where we're writing new entries
+ * unused_field - where we're reading old entires
+ * expire_pos - what is deemed "old" by user
+ * trimmed_pos - where we're expiring old items
+ *
+ * trimmed_pos <= expire_pos <= unused_field <= write_pos.
+ *
+ * Often, unused_field <= write_pos (as with MDS log). During
+ * recovery, write_pos is undefined until the end of the log is
+ * discovered.
+ *
+ * A "head" struct at the beginning of the log is used to store
+ * metadata at regular intervals. The basic invariants include:
+ *
+ * head.unused_field <= unused_field -- the head may "lag", since
+ * it's updated lazily.
+ * head.write_pos <= write_pos
+ * head.expire_pos <= expire_pos
+ * head.trimmed_pos <= trimmed_pos
+ *
+ * More significantly,
+ *
+ * head.expire_pos >= trimmed_pos -- this ensures we can find the
+ * "beginning" of the log as last
+ * recorded, before it is trimmed.
+ * trimming will block until a
+ * sufficiently current expire_pos
+ * is committed.
+ *
+ * To recover log state, we simply start at the last write_pos in the
+ * head, and probe the object sequence sizes until we read the end.
+ *
+ * Head struct is stored in the first object. Actual journal starts
+ * after layout.period() bytes.
+ *
+ */
+
+#ifndef CEPH_JOURNALER_H
+#define CEPH_JOURNALER_H
+
+#include <list>
+#include <map>
+
+#include "Objecter.h"
+#include "Filer.h"
+
+#include "common/Timer.h"
+#include "common/Throttle.h"
+#include "include/common_fwd.h"
+
+class Context;
+class Finisher;
+class C_OnFinisher;
+
+typedef __u8 stream_format_t;
+
+// Legacy envelope is leading uint32_t size
+enum StreamFormat {
+ JOURNAL_FORMAT_LEGACY = 0,
+ JOURNAL_FORMAT_RESILIENT = 1,
+ // Insert new formats here, before COUNT
+ JOURNAL_FORMAT_COUNT
+};
+
+// Highest journal format version that we support
+#define JOURNAL_FORMAT_MAX (JOURNAL_FORMAT_COUNT - 1)
+
+// Legacy envelope is leading uint32_t size
+#define JOURNAL_ENVELOPE_LEGACY (sizeof(uint32_t))
+
+// Resilient envelope is leading uint64_t sentinel, uint32_t size,
+// trailing uint64_t start_ptr
+#define JOURNAL_ENVELOPE_RESILIENT (sizeof(uint32_t) + sizeof(uint64_t) + \
+ sizeof(uint64_t))
+
+/**
+ * Represents a collection of entries serialized in a byte stream.
+ *
+ * Each entry consists of:
+ * - a blob (used by the next level up as a serialized LogEvent)
+ * - a uint64_t (used by the next level up as a pointer to the start
+ * of the entry in the collection bytestream)
+ */
+class JournalStream
+{
+ stream_format_t format;
+
+ public:
+ JournalStream(stream_format_t format_) : format(format_) {}
+
+ void set_format(stream_format_t format_) {format = format_;}
+
+ bool readable(bufferlist &bl, uint64_t *need) const;
+ size_t read(bufferlist &from, bufferlist *to, uint64_t *start_ptr);
+ size_t write(bufferlist &entry, bufferlist *to, uint64_t const &start_ptr);
+ size_t get_envelope_size() const {
+ if (format >= JOURNAL_FORMAT_RESILIENT) {
+ return JOURNAL_ENVELOPE_RESILIENT;
+ } else {
+ return JOURNAL_ENVELOPE_LEGACY;
+ }
+ }
+
+ // A magic number for the start of journal entries, so that we can
+ // identify them in damaged journals.
+ static const uint64_t sentinel = 0x3141592653589793;
+};
+
+
+class Journaler {
+public:
+ // this goes at the head of the log "file".
+ class Header {
+ public:
+ uint64_t trimmed_pos;
+ uint64_t expire_pos;
+ uint64_t unused_field;
+ uint64_t write_pos;
+ std::string magic;
+ file_layout_t layout; //< The mapping from byte stream offsets
+ // to RADOS objects
+ stream_format_t stream_format; //< The encoding of LogEvents
+ // within the journal byte stream
+
+ Header(const char *m="") :
+ trimmed_pos(0), expire_pos(0), unused_field(0), write_pos(0), magic(m),
+ stream_format(-1) {
+ }
+
+ void encode(bufferlist &bl) const {
+ ENCODE_START(2, 2, bl);
+ encode(magic, bl);
+ encode(trimmed_pos, bl);
+ encode(expire_pos, bl);
+ encode(unused_field, bl);
+ encode(write_pos, bl);
+ encode(layout, bl, 0); // encode in legacy format
+ encode(stream_format, bl);
+ ENCODE_FINISH(bl);
+ }
+ void decode(bufferlist::const_iterator &bl) {
+ DECODE_START_LEGACY_COMPAT_LEN(2, 2, 2, bl);
+ decode(magic, bl);
+ decode(trimmed_pos, bl);
+ decode(expire_pos, bl);
+ decode(unused_field, bl);
+ decode(write_pos, bl);
+ decode(layout, bl);
+ if (struct_v > 1) {
+ decode(stream_format, bl);
+ } else {
+ stream_format = JOURNAL_FORMAT_LEGACY;
+ }
+ DECODE_FINISH(bl);
+ }
+
+ void dump(Formatter *f) const {
+ f->open_object_section("journal_header");
+ {
+ f->dump_string("magic", magic);
+ f->dump_unsigned("write_pos", write_pos);
+ f->dump_unsigned("expire_pos", expire_pos);
+ f->dump_unsigned("trimmed_pos", trimmed_pos);
+ f->dump_unsigned("stream_format", stream_format);
+ f->dump_object("layout", layout);
+ }
+ f->close_section(); // journal_header
+ }
+
+ static void generate_test_instances(std::list<Header*> &ls)
+ {
+ ls.push_back(new Header());
+
+ ls.push_back(new Header());
+ ls.back()->trimmed_pos = 1;
+ ls.back()->expire_pos = 2;
+ ls.back()->unused_field = 3;
+ ls.back()->write_pos = 4;
+ ls.back()->magic = "magique";
+
+ ls.push_back(new Header());
+ ls.back()->stream_format = JOURNAL_FORMAT_RESILIENT;
+ }
+ };
+ WRITE_CLASS_ENCODER(Header)
+
+ uint32_t get_stream_format() const {
+ return stream_format;
+ }
+
+ Header last_committed;
+
+private:
+ // me
+ CephContext *cct;
+ std::mutex lock;
+ const std::string name;
+ typedef std::lock_guard<std::mutex> lock_guard;
+ typedef std::unique_lock<std::mutex> unique_lock;
+ Finisher *finisher;
+ Header last_written;
+ inodeno_t ino;
+ int64_t pg_pool;
+ bool readonly;
+ file_layout_t layout;
+ uint32_t stream_format;
+ JournalStream journal_stream;
+
+ const char *magic;
+ Objecter *objecter;
+ Filer filer;
+
+ PerfCounters *logger;
+ int logger_key_lat;
+
+ class C_DelayFlush;
+ C_DelayFlush *delay_flush_event;
+ /*
+ * Do a flush as a result of a C_DelayFlush context.
+ */
+ void _do_delayed_flush()
+ {
+ ceph_assert(delay_flush_event != NULL);
+ lock_guard l(lock);
+ delay_flush_event = NULL;
+ _do_flush();
+ }
+
+ // my state
+ static const int STATE_UNDEF = 0;
+ static const int STATE_READHEAD = 1;
+ static const int STATE_PROBING = 2;
+ static const int STATE_ACTIVE = 3;
+ static const int STATE_REREADHEAD = 4;
+ static const int STATE_REPROBING = 5;
+ static const int STATE_STOPPING = 6;
+
+ int state;
+ int error;
+
+ void _write_head(Context *oncommit=NULL);
+ void _wait_for_flush(Context *onsafe);
+ void _trim();
+
+ // header
+ ceph::real_time last_wrote_head;
+ void _finish_write_head(int r, Header &wrote, C_OnFinisher *oncommit);
+ class C_WriteHead;
+ friend class C_WriteHead;
+
+ void _reread_head(Context *onfinish);
+ void _set_layout(file_layout_t const *l);
+ std::list<Context*> waitfor_recover;
+ void _read_head(Context *on_finish, bufferlist *bl);
+ void _finish_read_head(int r, bufferlist& bl);
+ void _finish_reread_head(int r, bufferlist& bl, Context *finish);
+ void _probe(Context *finish, uint64_t *end);
+ void _finish_probe_end(int r, uint64_t end);
+ void _reprobe(C_OnFinisher *onfinish);
+ void _finish_reprobe(int r, uint64_t end, C_OnFinisher *onfinish);
+ void _finish_reread_head_and_probe(int r, C_OnFinisher *onfinish);
+ class C_ReadHead;
+ friend class C_ReadHead;
+ class C_ProbeEnd;
+ friend class C_ProbeEnd;
+ class C_RereadHead;
+ friend class C_RereadHead;
+ class C_ReProbe;
+ friend class C_ReProbe;
+ class C_RereadHeadProbe;
+ friend class C_RereadHeadProbe;
+
+ // writer
+ uint64_t prezeroing_pos;
+ uint64_t prezero_pos; ///< we zero journal space ahead of write_pos to
+ // avoid problems with tail probing
+ uint64_t write_pos; ///< logical write position, where next entry
+ // will go
+ uint64_t flush_pos; ///< where we will flush. if
+ /// write_pos>flush_pos, we're buffering writes.
+ uint64_t safe_pos; ///< what has been committed safely to disk.
+
+ uint64_t next_safe_pos; /// start position of the first entry that isn't
+ /// being fully flushed. If we don't flush any
+ // partial entry, it's equal to flush_pos.
+
+ bufferlist write_buf; ///< write buffer. flush_pos +
+ /// write_buf.length() == write_pos.
+
+ // protect write_buf from bufferlist _len overflow
+ Throttle write_buf_throttle;
+
+ uint64_t waiting_for_zero_pos;
+ interval_set<uint64_t> pending_zero; // non-contig bits we've zeroed
+ std::list<Context*> waitfor_prezero;
+
+ std::map<uint64_t, uint64_t> pending_safe; // flush_pos -> safe_pos
+ // when safe through given offset
+ std::map<uint64_t, std::list<Context*> > waitfor_safe;
+
+ void _flush(C_OnFinisher *onsafe);
+ void _do_flush(unsigned amount=0);
+ void _finish_flush(int r, uint64_t start, ceph::real_time stamp);
+ class C_Flush;
+ friend class C_Flush;
+
+ // reader
+ uint64_t read_pos; // logical read position, where next entry starts.
+ uint64_t requested_pos; // what we've requested from OSD.
+ uint64_t received_pos; // what we've received from OSD.
+ // read buffer. unused_field + read_buf.length() == prefetch_pos.
+ bufferlist read_buf;
+
+ std::map<uint64_t,bufferlist> prefetch_buf;
+
+ uint64_t fetch_len; // how much to read at a time
+ uint64_t temp_fetch_len;
+
+ // for wait_for_readable()
+ C_OnFinisher *on_readable;
+ C_OnFinisher *on_write_error;
+ bool called_write_error;
+
+ // read completion callback
+ void _finish_read(int r, uint64_t offset, uint64_t length, bufferlist &bl);
+ void _finish_retry_read(int r);
+ void _assimilate_prefetch();
+ void _issue_read(uint64_t len); // read some more
+ void _prefetch(); // maybe read ahead
+ class C_Read;
+ friend class C_Read;
+ class C_RetryRead;
+ friend class C_RetryRead;
+
+ // trimmer
+ uint64_t expire_pos; // what we're allowed to trim to
+ uint64_t trimming_pos; // what we've requested to trim through
+ uint64_t trimmed_pos; // what has been trimmed
+
+ bool readable;
+
+ void _finish_trim(int r, uint64_t to);
+ class C_Trim;
+ friend class C_Trim;
+
+ void _issue_prezero();
+ void _finish_prezero(int r, uint64_t from, uint64_t len);
+ friend struct C_Journaler_Prezero;
+
+ // only init_headers when following or first reading off-disk
+ void init_headers(Header& h) {
+ ceph_assert(readonly ||
+ state == STATE_READHEAD ||
+ state == STATE_REREADHEAD);
+ last_written = last_committed = h;
+ }
+
+ /**
+ * handle a write error
+ *
+ * called when we get an objecter error on a write.
+ *
+ * @param r error code
+ */
+ void handle_write_error(int r);
+
+ bool _have_next_entry();
+
+ void _finish_erase(int data_result, C_OnFinisher *completion);
+ class C_EraseFinish;
+ friend class C_EraseFinish;
+
+ C_OnFinisher *wrap_finisher(Context *c);
+
+ uint32_t write_iohint; // the fadvise flags for write op, see
+ // CEPH_OSD_OP_FADIVSE_*
+
+public:
+ Journaler(const std::string &name_, inodeno_t ino_, int64_t pool,
+ const char *mag, Objecter *obj, PerfCounters *l, int lkey, Finisher *f) :
+ last_committed(mag),
+ cct(obj->cct), name(name_), finisher(f), last_written(mag),
+ ino(ino_), pg_pool(pool), readonly(true),
+ stream_format(-1), journal_stream(-1),
+ magic(mag),
+ objecter(obj), filer(objecter, f), logger(l), logger_key_lat(lkey),
+ delay_flush_event(0),
+ state(STATE_UNDEF), error(0),
+ prezeroing_pos(0), prezero_pos(0), write_pos(0), flush_pos(0),
+ safe_pos(0), next_safe_pos(0),
+ write_buf_throttle(cct, "write_buf_throttle", UINT_MAX - (UINT_MAX >> 3)),
+ waiting_for_zero_pos(0),
+ read_pos(0), requested_pos(0), received_pos(0),
+ fetch_len(0), temp_fetch_len(0),
+ on_readable(0), on_write_error(NULL), called_write_error(false),
+ expire_pos(0), trimming_pos(0), trimmed_pos(0), readable(false),
+ write_iohint(0)
+ {
+ }
+
+ /* reset
+ *
+ * NOTE: we assume the caller knows/has ensured that any objects in
+ * our sequence do not exist.. e.g. after a MKFS. this is _not_ an
+ * "erase" method.
+ */
+ void reset() {
+ lock_guard l(lock);
+ ceph_assert(state == STATE_ACTIVE);
+
+ readonly = true;
+ delay_flush_event = NULL;
+ state = STATE_UNDEF;
+ error = 0;
+ prezeroing_pos = 0;
+ prezero_pos = 0;
+ write_pos = 0;
+ flush_pos = 0;
+ safe_pos = 0;
+ next_safe_pos = 0;
+ read_pos = 0;
+ requested_pos = 0;
+ received_pos = 0;
+ fetch_len = 0;
+ ceph_assert(!on_readable);
+ expire_pos = 0;
+ trimming_pos = 0;
+ trimmed_pos = 0;
+ waiting_for_zero_pos = 0;
+ }
+
+ // Asynchronous operations
+ // =======================
+ void erase(Context *completion);
+ void create(file_layout_t *layout, stream_format_t const sf);
+ void recover(Context *onfinish);
+ void reread_head(Context *onfinish);
+ void reread_head_and_probe(Context *onfinish);
+ void write_head(Context *onsave=0);
+ void wait_for_flush(Context *onsafe = 0);
+ void flush(Context *onsafe = 0);
+ void wait_for_readable(Context *onfinish);
+ void _wait_for_readable(Context *onfinish);
+ bool have_waiter() const;
+ void wait_for_prezero(Context *onfinish);
+
+ // Synchronous setters
+ // ===================
+ void set_layout(file_layout_t const *l);
+ void set_readonly();
+ void set_writeable();
+ void set_write_pos(uint64_t p) {
+ lock_guard l(lock);
+ prezeroing_pos = prezero_pos = write_pos = flush_pos = safe_pos = next_safe_pos = p;
+ }
+ void set_read_pos(uint64_t p) {
+ lock_guard l(lock);
+ // we can't cope w/ in-progress read right now.
+ ceph_assert(requested_pos == received_pos);
+ read_pos = requested_pos = received_pos = p;
+ read_buf.clear();
+ }
+ uint64_t append_entry(bufferlist& bl);
+ void set_expire_pos(uint64_t ep) {
+ lock_guard l(lock);
+ expire_pos = ep;
+ }
+ void set_trimmed_pos(uint64_t p) {
+ lock_guard l(lock);
+ trimming_pos = trimmed_pos = p;
+ }
+
+ bool _write_head_needed();
+ bool write_head_needed() {
+ lock_guard l(lock);
+ return _write_head_needed();
+ }
+
+
+ void trim();
+ void trim_tail() {
+ lock_guard l(lock);
+
+ ceph_assert(!readonly);
+ _issue_prezero();
+ }
+
+ void set_write_error_handler(Context *c);
+
+ void set_write_iohint(uint32_t iohint_flags) {
+ write_iohint = iohint_flags;
+ }
+ /**
+ * Cause any ongoing waits to error out with -EAGAIN, set error
+ * to -EAGAIN.
+ */
+ void shutdown();
+public:
+
+ // Synchronous getters
+ // ===================
+ // TODO: need some locks on reads for true safety
+ uint64_t get_layout_period() const {
+ return layout.get_period();
+ }
+ file_layout_t& get_layout() { return layout; }
+ bool is_active() { return state == STATE_ACTIVE; }
+ bool is_stopping() { return state == STATE_STOPPING; }
+ int get_error() { return error; }
+ bool is_readonly() { return readonly; }
+ bool is_readable();
+ bool _is_readable();
+ bool try_read_entry(bufferlist& bl);
+ uint64_t get_write_pos() const { return write_pos; }
+ uint64_t get_write_safe_pos() const { return safe_pos; }
+ uint64_t get_read_pos() const { return read_pos; }
+ uint64_t get_expire_pos() const { return expire_pos; }
+ uint64_t get_trimmed_pos() const { return trimmed_pos; }
+ size_t get_journal_envelope_size() const {
+ return journal_stream.get_envelope_size();
+ }
+ void check_isreadable();
+};
+WRITE_CLASS_ENCODER(Journaler::Header)
+
+#endif
diff --git a/src/osdc/ObjectCacher.cc b/src/osdc/ObjectCacher.cc
new file mode 100644
index 000000000..f2b6d9736
--- /dev/null
+++ b/src/osdc/ObjectCacher.cc
@@ -0,0 +1,2807 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include <limits.h>
+
+#include "msg/Messenger.h"
+#include "ObjectCacher.h"
+#include "WritebackHandler.h"
+#include "common/errno.h"
+#include "common/perf_counters.h"
+
+#include "include/ceph_assert.h"
+
+#define MAX_FLUSH_UNDER_LOCK 20 ///< max bh's we start writeback on
+#define BUFFER_MEMORY_WEIGHT CEPH_PAGE_SHIFT // memory usage of BufferHead, count in (1<<n)
+ /// while holding the lock
+
+using std::chrono::seconds;
+using std::list;
+using std::map;
+using std::make_pair;
+using std::pair;
+using std::set;
+using std::string;
+using std::vector;
+
+using ceph::bufferlist;
+
+using namespace std::literals;
+
+/*** ObjectCacher::BufferHead ***/
+
+
+/*** ObjectCacher::Object ***/
+
+#define dout_subsys ceph_subsys_objectcacher
+#undef dout_prefix
+#define dout_prefix *_dout << "objectcacher.object(" << oid << ") "
+
+
+
+class ObjectCacher::C_ReadFinish : public Context {
+ ObjectCacher *oc;
+ int64_t poolid;
+ sobject_t oid;
+ loff_t start;
+ uint64_t length;
+ xlist<C_ReadFinish*>::item set_item;
+ bool trust_enoent;
+ ceph_tid_t tid;
+ ZTracer::Trace trace;
+
+public:
+ bufferlist bl;
+ C_ReadFinish(ObjectCacher *c, Object *ob, ceph_tid_t t, loff_t s,
+ uint64_t l, const ZTracer::Trace &trace) :
+ oc(c), poolid(ob->oloc.pool), oid(ob->get_soid()), start(s), length(l),
+ set_item(this), trust_enoent(true),
+ tid(t), trace(trace) {
+ ob->reads.push_back(&set_item);
+ }
+
+ void finish(int r) override {
+ oc->bh_read_finish(poolid, oid, tid, start, length, bl, r, trust_enoent);
+ trace.event("finish");
+
+ // object destructor clears the list
+ if (set_item.is_on_list())
+ set_item.remove_myself();
+ }
+
+ void distrust_enoent() {
+ trust_enoent = false;
+ }
+};
+
+class ObjectCacher::C_RetryRead : public Context {
+ ObjectCacher *oc;
+ OSDRead *rd;
+ ObjectSet *oset;
+ Context *onfinish;
+ ZTracer::Trace trace;
+public:
+ C_RetryRead(ObjectCacher *_oc, OSDRead *r, ObjectSet *os, Context *c,
+ const ZTracer::Trace &trace)
+ : oc(_oc), rd(r), oset(os), onfinish(c), trace(trace) {
+ }
+ void finish(int r) override {
+ if (r >= 0) {
+ r = oc->_readx(rd, oset, onfinish, false, &trace);
+ }
+
+ if (r == 0) {
+ // read is still in-progress
+ return;
+ }
+
+ trace.event("finish");
+ if (onfinish) {
+ onfinish->complete(r);
+ }
+ }
+};
+
+ObjectCacher::BufferHead *ObjectCacher::Object::split(BufferHead *left,
+ loff_t off)
+{
+ ceph_assert(ceph_mutex_is_locked(oc->lock));
+ ldout(oc->cct, 20) << "split " << *left << " at " << off << dendl;
+
+ // split off right
+ ObjectCacher::BufferHead *right = new BufferHead(this);
+
+ //inherit and if later access, this auto clean.
+ right->set_dontneed(left->get_dontneed());
+ right->set_nocache(left->get_nocache());
+
+ right->last_write_tid = left->last_write_tid;
+ right->last_read_tid = left->last_read_tid;
+ right->set_state(left->get_state());
+ right->set_error(left->error);
+ right->snapc = left->snapc;
+ right->set_journal_tid(left->journal_tid);
+
+ loff_t newleftlen = off - left->start();
+ right->set_start(off);
+ right->set_length(left->length() - newleftlen);
+
+ // shorten left
+ oc->bh_stat_sub(left);
+ left->set_length(newleftlen);
+ oc->bh_stat_add(left);
+
+ // add right
+ oc->bh_add(this, right);
+
+ // split buffers too
+ bufferlist bl;
+ bl = std::move(left->bl);
+ if (bl.length()) {
+ ceph_assert(bl.length() == (left->length() + right->length()));
+ right->bl.substr_of(bl, left->length(), right->length());
+ left->bl.substr_of(bl, 0, left->length());
+ }
+
+ // move read waiters
+ if (!left->waitfor_read.empty()) {
+ auto start_remove = left->waitfor_read.begin();
+ while (start_remove != left->waitfor_read.end() &&
+ start_remove->first < right->start())
+ ++start_remove;
+ for (auto p = start_remove; p != left->waitfor_read.end(); ++p) {
+ ldout(oc->cct, 20) << "split moving waiters at byte " << p->first
+ << " to right bh" << dendl;
+ right->waitfor_read[p->first].swap( p->second );
+ ceph_assert(p->second.empty());
+ }
+ left->waitfor_read.erase(start_remove, left->waitfor_read.end());
+ }
+
+ ldout(oc->cct, 20) << "split left is " << *left << dendl;
+ ldout(oc->cct, 20) << "split right is " << *right << dendl;
+ return right;
+}
+
+
+void ObjectCacher::Object::merge_left(BufferHead *left, BufferHead *right)
+{
+ ceph_assert(ceph_mutex_is_locked(oc->lock));
+
+ ldout(oc->cct, 10) << "merge_left " << *left << " + " << *right << dendl;
+ if (left->get_journal_tid() == 0) {
+ left->set_journal_tid(right->get_journal_tid());
+ }
+ right->set_journal_tid(0);
+
+ oc->bh_remove(this, right);
+ oc->bh_stat_sub(left);
+ left->set_length(left->length() + right->length());
+ oc->bh_stat_add(left);
+
+ // data
+ left->bl.claim_append(right->bl);
+
+ // version
+ // note: this is sorta busted, but should only be used for dirty buffers
+ left->last_write_tid = std::max( left->last_write_tid, right->last_write_tid );
+ left->last_write = std::max( left->last_write, right->last_write );
+
+ left->set_dontneed(right->get_dontneed() ? left->get_dontneed() : false);
+ left->set_nocache(right->get_nocache() ? left->get_nocache() : false);
+
+ // waiters
+ for (auto p = right->waitfor_read.begin();
+ p != right->waitfor_read.end();
+ ++p)
+ left->waitfor_read[p->first].splice(left->waitfor_read[p->first].begin(),
+ p->second );
+
+ // hose right
+ delete right;
+
+ ldout(oc->cct, 10) << "merge_left result " << *left << dendl;
+}
+
+bool ObjectCacher::Object::can_merge_bh(BufferHead *left, BufferHead *right)
+{
+ if (left->end() != right->start() ||
+ left->get_state() != right->get_state() ||
+ !left->can_merge_journal(right))
+ return false;
+ if (left->is_tx() && left->last_write_tid != right->last_write_tid)
+ return false;
+ return true;
+}
+
+void ObjectCacher::Object::try_merge_bh(BufferHead *bh)
+{
+ ceph_assert(ceph_mutex_is_locked(oc->lock));
+ ldout(oc->cct, 10) << "try_merge_bh " << *bh << dendl;
+
+ // do not merge rx buffers; last_read_tid may not match
+ if (bh->is_rx())
+ return;
+
+ // to the left?
+ auto p = data.find(bh->start());
+ ceph_assert(p->second == bh);
+ if (p != data.begin()) {
+ --p;
+ if (can_merge_bh(p->second, bh)) {
+ merge_left(p->second, bh);
+ bh = p->second;
+ } else {
+ ++p;
+ }
+ }
+ // to the right?
+ ceph_assert(p->second == bh);
+ ++p;
+ if (p != data.end() && can_merge_bh(bh, p->second))
+ merge_left(bh, p->second);
+
+ maybe_rebuild_buffer(bh);
+}
+
+void ObjectCacher::Object::maybe_rebuild_buffer(BufferHead *bh)
+{
+ auto& bl = bh->bl;
+ if (bl.get_num_buffers() <= 1)
+ return;
+
+ auto wasted = bl.get_wasted_space();
+ if (wasted * 2 > bl.length() &&
+ wasted > (1U << BUFFER_MEMORY_WEIGHT))
+ bl.rebuild();
+}
+
+/*
+ * count bytes we have cached in given range
+ */
+bool ObjectCacher::Object::is_cached(loff_t cur, loff_t left) const
+{
+ ceph_assert(ceph_mutex_is_locked(oc->lock));
+ auto p = data_lower_bound(cur);
+ while (left > 0) {
+ if (p == data.end())
+ return false;
+
+ if (p->first <= cur) {
+ // have part of it
+ loff_t lenfromcur = std::min(p->second->end() - cur, left);
+ cur += lenfromcur;
+ left -= lenfromcur;
+ ++p;
+ continue;
+ } else if (p->first > cur) {
+ // gap
+ return false;
+ } else
+ ceph_abort();
+ }
+
+ return true;
+}
+
+/*
+ * all cached data in this range[off, off+len]
+ */
+bool ObjectCacher::Object::include_all_cached_data(loff_t off, loff_t len)
+{
+ ceph_assert(ceph_mutex_is_locked(oc->lock));
+ if (data.empty())
+ return true;
+ auto first = data.begin();
+ auto last = data.rbegin();
+ if (first->second->start() >= off && last->second->end() <= (off + len))
+ return true;
+ else
+ return false;
+}
+
+/*
+ * map a range of bytes into buffer_heads.
+ * - create missing buffer_heads as necessary.
+ */
+int ObjectCacher::Object::map_read(ObjectExtent &ex,
+ map<loff_t, BufferHead*>& hits,
+ map<loff_t, BufferHead*>& missing,
+ map<loff_t, BufferHead*>& rx,
+ map<loff_t, BufferHead*>& errors)
+{
+ ceph_assert(ceph_mutex_is_locked(oc->lock));
+ ldout(oc->cct, 10) << "map_read " << ex.oid << " "
+ << ex.offset << "~" << ex.length << dendl;
+
+ loff_t cur = ex.offset;
+ loff_t left = ex.length;
+
+ auto p = data_lower_bound(ex.offset);
+ while (left > 0) {
+ // at end?
+ if (p == data.end()) {
+ // rest is a miss.
+ BufferHead *n = new BufferHead(this);
+ n->set_start(cur);
+ n->set_length(left);
+ oc->bh_add(this, n);
+ if (complete) {
+ oc->mark_zero(n);
+ hits[cur] = n;
+ ldout(oc->cct, 20) << "map_read miss+complete+zero " << left << " left, " << *n << dendl;
+ } else {
+ missing[cur] = n;
+ ldout(oc->cct, 20) << "map_read miss " << left << " left, " << *n << dendl;
+ }
+ cur += left;
+ ceph_assert(cur == (loff_t)ex.offset + (loff_t)ex.length);
+ break; // no more.
+ }
+
+ if (p->first <= cur) {
+ // have it (or part of it)
+ BufferHead *e = p->second;
+
+ if (e->is_clean() ||
+ e->is_dirty() ||
+ e->is_tx() ||
+ e->is_zero()) {
+ hits[cur] = e; // readable!
+ ldout(oc->cct, 20) << "map_read hit " << *e << dendl;
+ } else if (e->is_rx()) {
+ rx[cur] = e; // missing, not readable.
+ ldout(oc->cct, 20) << "map_read rx " << *e << dendl;
+ } else if (e->is_error()) {
+ errors[cur] = e;
+ ldout(oc->cct, 20) << "map_read error " << *e << dendl;
+ } else {
+ ceph_abort();
+ }
+
+ loff_t lenfromcur = std::min(e->end() - cur, left);
+ cur += lenfromcur;
+ left -= lenfromcur;
+ ++p;
+ continue; // more?
+
+ } else if (p->first > cur) {
+ // gap.. miss
+ loff_t next = p->first;
+ BufferHead *n = new BufferHead(this);
+ loff_t len = std::min(next - cur, left);
+ n->set_start(cur);
+ n->set_length(len);
+ oc->bh_add(this,n);
+ if (complete) {
+ oc->mark_zero(n);
+ hits[cur] = n;
+ ldout(oc->cct, 20) << "map_read gap+complete+zero " << *n << dendl;
+ } else {
+ missing[cur] = n;
+ ldout(oc->cct, 20) << "map_read gap " << *n << dendl;
+ }
+ cur += std::min(left, n->length());
+ left -= std::min(left, n->length());
+ continue; // more?
+ } else {
+ ceph_abort();
+ }
+ }
+ return 0;
+}
+
+void ObjectCacher::Object::audit_buffers()
+{
+ loff_t offset = 0;
+ for (auto it = data.begin(); it != data.end(); ++it) {
+ if (it->first != it->second->start()) {
+ lderr(oc->cct) << "AUDIT FAILURE: map position " << it->first
+ << " does not match bh start position: "
+ << *it->second << dendl;
+ ceph_assert(it->first == it->second->start());
+ }
+ if (it->first < offset) {
+ lderr(oc->cct) << "AUDIT FAILURE: " << it->first << " " << *it->second
+ << " overlaps with previous bh " << *((--it)->second)
+ << dendl;
+ ceph_assert(it->first >= offset);
+ }
+ BufferHead *bh = it->second;
+ for (auto w_it = bh->waitfor_read.begin();
+ w_it != bh->waitfor_read.end(); ++w_it) {
+ if (w_it->first < bh->start() ||
+ w_it->first >= bh->start() + bh->length()) {
+ lderr(oc->cct) << "AUDIT FAILURE: waiter at " << w_it->first
+ << " is not within bh " << *bh << dendl;
+ ceph_assert(w_it->first >= bh->start());
+ ceph_assert(w_it->first < bh->start() + bh->length());
+ }
+ }
+ offset = it->first + it->second->length();
+ }
+}
+
+/*
+ * map a range of extents on an object's buffer cache.
+ * - combine any bh's we're writing into one
+ * - break up bufferheads that don't fall completely within the range
+ * //no! - return a bh that includes the write. may also include
+ * other dirty data to left and/or right.
+ */
+ObjectCacher::BufferHead *ObjectCacher::Object::map_write(ObjectExtent &ex,
+ ceph_tid_t tid)
+{
+ ceph_assert(ceph_mutex_is_locked(oc->lock));
+ BufferHead *final = 0;
+
+ ldout(oc->cct, 10) << "map_write oex " << ex.oid
+ << " " << ex.offset << "~" << ex.length << dendl;
+
+ loff_t cur = ex.offset;
+ loff_t left = ex.length;
+
+ auto p = data_lower_bound(ex.offset);
+ while (left > 0) {
+ loff_t max = left;
+
+ // at end ?
+ if (p == data.end()) {
+ if (final == NULL) {
+ final = new BufferHead(this);
+ replace_journal_tid(final, tid);
+ final->set_start( cur );
+ final->set_length( max );
+ oc->bh_add(this, final);
+ ldout(oc->cct, 10) << "map_write adding trailing bh " << *final << dendl;
+ } else {
+ oc->bh_stat_sub(final);
+ final->set_length(final->length() + max);
+ oc->bh_stat_add(final);
+ }
+ left -= max;
+ cur += max;
+ continue;
+ }
+
+ ldout(oc->cct, 10) << "cur is " << cur << ", p is " << *p->second << dendl;
+ //oc->verify_stats();
+
+ if (p->first <= cur) {
+ BufferHead *bh = p->second;
+ ldout(oc->cct, 10) << "map_write bh " << *bh << " intersected" << dendl;
+
+ if (p->first < cur) {
+ ceph_assert(final == 0);
+ if (cur + max >= bh->end()) {
+ // we want right bit (one splice)
+ final = split(bh, cur); // just split it, take right half.
+ maybe_rebuild_buffer(bh);
+ replace_journal_tid(final, tid);
+ ++p;
+ ceph_assert(p->second == final);
+ } else {
+ // we want middle bit (two splices)
+ final = split(bh, cur);
+ maybe_rebuild_buffer(bh);
+ ++p;
+ ceph_assert(p->second == final);
+ auto right = split(final, cur+max);
+ maybe_rebuild_buffer(right);
+ replace_journal_tid(final, tid);
+ }
+ } else {
+ ceph_assert(p->first == cur);
+ if (bh->length() <= max) {
+ // whole bufferhead, piece of cake.
+ } else {
+ // we want left bit (one splice)
+ auto right = split(bh, cur + max); // just split
+ maybe_rebuild_buffer(right);
+ }
+ if (final) {
+ oc->mark_dirty(bh);
+ oc->mark_dirty(final);
+ --p; // move iterator back to final
+ ceph_assert(p->second == final);
+ replace_journal_tid(bh, tid);
+ merge_left(final, bh);
+ } else {
+ final = bh;
+ replace_journal_tid(final, tid);
+ }
+ }
+
+ // keep going.
+ loff_t lenfromcur = final->end() - cur;
+ cur += lenfromcur;
+ left -= lenfromcur;
+ ++p;
+ continue;
+ } else {
+ // gap!
+ loff_t next = p->first;
+ loff_t glen = std::min(next - cur, max);
+ ldout(oc->cct, 10) << "map_write gap " << cur << "~" << glen << dendl;
+ if (final) {
+ oc->bh_stat_sub(final);
+ final->set_length(final->length() + glen);
+ oc->bh_stat_add(final);
+ } else {
+ final = new BufferHead(this);
+ replace_journal_tid(final, tid);
+ final->set_start( cur );
+ final->set_length( glen );
+ oc->bh_add(this, final);
+ }
+
+ cur += glen;
+ left -= glen;
+ continue; // more?
+ }
+ }
+
+ // set version
+ ceph_assert(final);
+ ceph_assert(final->get_journal_tid() == tid);
+ ldout(oc->cct, 10) << "map_write final is " << *final << dendl;
+
+ return final;
+}
+
+void ObjectCacher::Object::replace_journal_tid(BufferHead *bh,
+ ceph_tid_t tid) {
+ ceph_tid_t bh_tid = bh->get_journal_tid();
+
+ ceph_assert(tid == 0 || bh_tid <= tid);
+ if (bh_tid != 0 && bh_tid != tid) {
+ // inform journal that it should not expect a writeback from this extent
+ oc->writeback_handler.overwrite_extent(get_oid(), bh->start(),
+ bh->length(), bh_tid, tid);
+ }
+ bh->set_journal_tid(tid);
+}
+
+void ObjectCacher::Object::truncate(loff_t s)
+{
+ ceph_assert(ceph_mutex_is_locked(oc->lock));
+ ldout(oc->cct, 10) << "truncate " << *this << " to " << s << dendl;
+
+ std::list<Context*> waiting_for_read;
+ while (!data.empty()) {
+ BufferHead *bh = data.rbegin()->second;
+ if (bh->end() <= s)
+ break;
+
+ // split bh at truncation point?
+ if (bh->start() < s) {
+ split(bh, s);
+ maybe_rebuild_buffer(bh);
+ continue;
+ }
+
+ // remove bh entirely
+ ceph_assert(bh->start() >= s);
+ for ([[maybe_unused]] auto& [off, ctxs] : bh->waitfor_read) {
+ waiting_for_read.splice(waiting_for_read.end(), ctxs);
+ }
+ bh->waitfor_read.clear();
+ replace_journal_tid(bh, 0);
+ oc->bh_remove(this, bh);
+ delete bh;
+ }
+ if (!waiting_for_read.empty()) {
+ ldout(oc->cct, 10) << "restarting reads post-truncate" << dendl;
+ }
+ finish_contexts(oc->cct, waiting_for_read, 0);
+}
+
+void ObjectCacher::Object::discard(loff_t off, loff_t len,
+ C_GatherBuilder* commit_gather)
+{
+ ceph_assert(ceph_mutex_is_locked(oc->lock));
+ ldout(oc->cct, 10) << "discard " << *this << " " << off << "~" << len
+ << dendl;
+
+ if (!exists) {
+ ldout(oc->cct, 10) << " setting exists on " << *this << dendl;
+ exists = true;
+ }
+ if (complete) {
+ ldout(oc->cct, 10) << " clearing complete on " << *this << dendl;
+ complete = false;
+ }
+
+ std::list<Context*> waiting_for_read;
+ auto p = data_lower_bound(off);
+ while (p != data.end()) {
+ BufferHead *bh = p->second;
+ if (bh->start() >= off + len)
+ break;
+
+ // split bh at truncation point?
+ if (bh->start() < off) {
+ split(bh, off);
+ maybe_rebuild_buffer(bh);
+ ++p;
+ continue;
+ }
+
+ ceph_assert(bh->start() >= off);
+ if (bh->end() > off + len) {
+ auto right = split(bh, off + len);
+ maybe_rebuild_buffer(right);
+ }
+
+ ++p;
+ ldout(oc->cct, 10) << "discard " << *this << " bh " << *bh << dendl;
+ replace_journal_tid(bh, 0);
+
+ if (bh->is_tx() && commit_gather != nullptr) {
+ // wait for the writeback to commit
+ waitfor_commit[bh->last_write_tid].emplace_back(commit_gather->new_sub());
+ } else if (bh->is_rx()) {
+ // cannot remove bh with in-flight read, but we can ensure the
+ // read won't overwrite the discard
+ bh->last_read_tid = ++oc->last_read_tid;
+ bh->bl.clear();
+ bh->set_nocache(true);
+ oc->mark_zero(bh);
+ // we should mark all Rx bh to zero
+ continue;
+ } else {
+ for ([[maybe_unused]] auto& [off, ctxs] : bh->waitfor_read) {
+ waiting_for_read.splice(waiting_for_read.end(), ctxs);
+ }
+ bh->waitfor_read.clear();
+ }
+
+ oc->bh_remove(this, bh);
+ delete bh;
+ }
+ if (!waiting_for_read.empty()) {
+ ldout(oc->cct, 10) << "restarting reads post-discard" << dendl;
+ }
+ finish_contexts(oc->cct, waiting_for_read, 0); /* restart reads */
+}
+
+
+
+/*** ObjectCacher ***/
+
+#undef dout_prefix
+#define dout_prefix *_dout << "objectcacher "
+
+
+ObjectCacher::ObjectCacher(CephContext *cct_, string name,
+ WritebackHandler& wb, ceph::mutex& l,
+ flush_set_callback_t flush_callback,
+ void *flush_callback_arg, uint64_t max_bytes,
+ uint64_t max_objects, uint64_t max_dirty,
+ uint64_t target_dirty, double max_dirty_age,
+ bool block_writes_upfront)
+ : perfcounter(NULL),
+ cct(cct_), writeback_handler(wb), name(name), lock(l),
+ max_dirty(max_dirty), target_dirty(target_dirty),
+ max_size(max_bytes), max_objects(max_objects),
+ max_dirty_age(ceph::make_timespan(max_dirty_age)),
+ block_writes_upfront(block_writes_upfront),
+ trace_endpoint("ObjectCacher"),
+ flush_set_callback(flush_callback),
+ flush_set_callback_arg(flush_callback_arg),
+ last_read_tid(0), flusher_stop(false), flusher_thread(this),finisher(cct),
+ stat_clean(0), stat_zero(0), stat_dirty(0), stat_rx(0), stat_tx(0),
+ stat_missing(0), stat_error(0), stat_dirty_waiting(0),
+ stat_nr_dirty_waiters(0), reads_outstanding(0)
+{
+ perf_start();
+ finisher.start();
+ scattered_write = writeback_handler.can_scattered_write();
+}
+
+ObjectCacher::~ObjectCacher()
+{
+ finisher.stop();
+ perf_stop();
+ // we should be empty.
+ for (auto i = objects.begin(); i != objects.end(); ++i)
+ ceph_assert(i->empty());
+ ceph_assert(bh_lru_rest.lru_get_size() == 0);
+ ceph_assert(bh_lru_dirty.lru_get_size() == 0);
+ ceph_assert(ob_lru.lru_get_size() == 0);
+ ceph_assert(dirty_or_tx_bh.empty());
+}
+
+void ObjectCacher::perf_start()
+{
+ string n = "objectcacher-" + name;
+ PerfCountersBuilder plb(cct, n, l_objectcacher_first, l_objectcacher_last);
+
+ plb.add_u64_counter(l_objectcacher_cache_ops_hit,
+ "cache_ops_hit", "Hit operations");
+ plb.add_u64_counter(l_objectcacher_cache_ops_miss,
+ "cache_ops_miss", "Miss operations");
+ plb.add_u64_counter(l_objectcacher_cache_bytes_hit,
+ "cache_bytes_hit", "Hit data", NULL, 0, unit_t(UNIT_BYTES));
+ plb.add_u64_counter(l_objectcacher_cache_bytes_miss,
+ "cache_bytes_miss", "Miss data", NULL, 0, unit_t(UNIT_BYTES));
+ plb.add_u64_counter(l_objectcacher_data_read,
+ "data_read", "Read data");
+ plb.add_u64_counter(l_objectcacher_data_written,
+ "data_written", "Data written to cache");
+ plb.add_u64_counter(l_objectcacher_data_flushed,
+ "data_flushed", "Data flushed");
+ plb.add_u64_counter(l_objectcacher_overwritten_in_flush,
+ "data_overwritten_while_flushing",
+ "Data overwritten while flushing");
+ plb.add_u64_counter(l_objectcacher_write_ops_blocked, "write_ops_blocked",
+ "Write operations, delayed due to dirty limits");
+ plb.add_u64_counter(l_objectcacher_write_bytes_blocked,
+ "write_bytes_blocked",
+ "Write data blocked on dirty limit", NULL, 0, unit_t(UNIT_BYTES));
+ plb.add_time(l_objectcacher_write_time_blocked, "write_time_blocked",
+ "Time spent blocking a write due to dirty limits");
+
+ perfcounter = plb.create_perf_counters();
+ cct->get_perfcounters_collection()->add(perfcounter);
+}
+
+void ObjectCacher::perf_stop()
+{
+ ceph_assert(perfcounter);
+ cct->get_perfcounters_collection()->remove(perfcounter);
+ delete perfcounter;
+}
+
+/* private */
+ObjectCacher::Object *ObjectCacher::get_object(sobject_t oid,
+ uint64_t object_no,
+ ObjectSet *oset,
+ object_locator_t &l,
+ uint64_t truncate_size,
+ uint64_t truncate_seq)
+{
+ // XXX: Add handling of nspace in object_locator_t in cache
+ ceph_assert(ceph_mutex_is_locked(lock));
+ // have it?
+ if ((uint32_t)l.pool < objects.size()) {
+ if (objects[l.pool].count(oid)) {
+ Object *o = objects[l.pool][oid];
+ o->object_no = object_no;
+ o->truncate_size = truncate_size;
+ o->truncate_seq = truncate_seq;
+ return o;
+ }
+ } else {
+ objects.resize(l.pool+1);
+ }
+
+ // create it.
+ Object *o = new Object(this, oid, object_no, oset, l, truncate_size,
+ truncate_seq);
+ objects[l.pool][oid] = o;
+ ob_lru.lru_insert_top(o);
+ return o;
+}
+
+void ObjectCacher::close_object(Object *ob)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ ldout(cct, 10) << "close_object " << *ob << dendl;
+ ceph_assert(ob->can_close());
+
+ // ok!
+ ob_lru.lru_remove(ob);
+ objects[ob->oloc.pool].erase(ob->get_soid());
+ ob->set_item.remove_myself();
+ delete ob;
+}
+
+void ObjectCacher::bh_read(BufferHead *bh, int op_flags,
+ const ZTracer::Trace &parent_trace)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ ldout(cct, 7) << "bh_read on " << *bh << " outstanding reads "
+ << reads_outstanding << dendl;
+
+ ZTracer::Trace trace;
+ if (parent_trace.valid()) {
+ trace.init("", &trace_endpoint, &parent_trace);
+ trace.copy_name("bh_read " + bh->ob->get_oid().name);
+ trace.event("start");
+ }
+
+ mark_rx(bh);
+ bh->last_read_tid = ++last_read_tid;
+
+ // finisher
+ C_ReadFinish *onfinish = new C_ReadFinish(this, bh->ob, bh->last_read_tid,
+ bh->start(), bh->length(), trace);
+ // go
+ writeback_handler.read(bh->ob->get_oid(), bh->ob->get_object_number(),
+ bh->ob->get_oloc(), bh->start(), bh->length(),
+ bh->ob->get_snap(), &onfinish->bl,
+ bh->ob->truncate_size, bh->ob->truncate_seq,
+ op_flags, trace, onfinish);
+
+ ++reads_outstanding;
+}
+
+void ObjectCacher::bh_read_finish(int64_t poolid, sobject_t oid,
+ ceph_tid_t tid, loff_t start,
+ uint64_t length, bufferlist &bl, int r,
+ bool trust_enoent)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ ldout(cct, 7) << "bh_read_finish "
+ << oid
+ << " tid " << tid
+ << " " << start << "~" << length
+ << " (bl is " << bl.length() << ")"
+ << " returned " << r
+ << " outstanding reads " << reads_outstanding
+ << dendl;
+
+ if (r >= 0 && bl.length() < length) {
+ ldout(cct, 7) << "bh_read_finish " << oid << " padding " << start << "~"
+ << length << " with " << length - bl.length() << " bytes of zeroes"
+ << dendl;
+ bl.append_zero(length - bl.length());
+ }
+
+ list<Context*> ls;
+ int err = 0;
+
+ if (objects[poolid].count(oid) == 0) {
+ ldout(cct, 7) << "bh_read_finish no object cache" << dendl;
+ } else {
+ Object *ob = objects[poolid][oid];
+
+ if (r == -ENOENT && !ob->complete) {
+ // wake up *all* rx waiters, or else we risk reordering
+ // identical reads. e.g.
+ // read 1~1
+ // reply to unrelated 3~1 -> !exists
+ // read 1~1 -> immediate ENOENT
+ // reply to first 1~1 -> ooo ENOENT
+ bool allzero = true;
+ for (auto p = ob->data.begin(); p != ob->data.end(); ++p) {
+ BufferHead *bh = p->second;
+ for (auto p = bh->waitfor_read.begin();
+ p != bh->waitfor_read.end();
+ ++p)
+ ls.splice(ls.end(), p->second);
+ bh->waitfor_read.clear();
+ if (!bh->is_zero() && !bh->is_rx())
+ allzero = false;
+ }
+
+ // just pass through and retry all waiters if we don't trust
+ // -ENOENT for this read
+ if (trust_enoent) {
+ ldout(cct, 7)
+ << "bh_read_finish ENOENT, marking complete and !exists on " << *ob
+ << dendl;
+ ob->complete = true;
+ ob->exists = false;
+
+ /* If all the bhs are effectively zero, get rid of them. All
+ * the waiters will be retried and get -ENOENT immediately, so
+ * it's safe to clean up the unneeded bh's now. Since we know
+ * it's safe to remove them now, do so, so they aren't hanging
+ *around waiting for more -ENOENTs from rados while the cache
+ * is being shut down.
+ *
+ * Only do this when all the bhs are rx or clean, to match the
+ * condition in _readx(). If there are any non-rx or non-clean
+ * bhs, _readx() will wait for the final result instead of
+ * returning -ENOENT immediately.
+ */
+ if (allzero) {
+ ldout(cct, 10)
+ << "bh_read_finish ENOENT and allzero, getting rid of "
+ << "bhs for " << *ob << dendl;
+ auto p = ob->data.begin();
+ while (p != ob->data.end()) {
+ BufferHead *bh = p->second;
+ // current iterator will be invalidated by bh_remove()
+ ++p;
+ bh_remove(ob, bh);
+ delete bh;
+ }
+ }
+ }
+ }
+
+ // apply to bh's!
+ loff_t opos = start;
+ while (true) {
+ auto p = ob->data_lower_bound(opos);
+ if (p == ob->data.end())
+ break;
+ if (opos >= start+(loff_t)length) {
+ ldout(cct, 20) << "break due to opos " << opos << " >= start+length "
+ << start << "+" << length << "=" << start+(loff_t)length
+ << dendl;
+ break;
+ }
+
+ BufferHead *bh = p->second;
+ ldout(cct, 20) << "checking bh " << *bh << dendl;
+
+ // finishers?
+ for (auto it = bh->waitfor_read.begin();
+ it != bh->waitfor_read.end();
+ ++it)
+ ls.splice(ls.end(), it->second);
+ bh->waitfor_read.clear();
+
+ if (bh->start() > opos) {
+ ldout(cct, 1) << "bh_read_finish skipping gap "
+ << opos << "~" << bh->start() - opos
+ << dendl;
+ opos = bh->start();
+ continue;
+ }
+
+ if (!bh->is_rx()) {
+ ldout(cct, 10) << "bh_read_finish skipping non-rx " << *bh << dendl;
+ opos = bh->end();
+ continue;
+ }
+
+ if (bh->last_read_tid != tid) {
+ ldout(cct, 10) << "bh_read_finish bh->last_read_tid "
+ << bh->last_read_tid << " != tid " << tid
+ << ", skipping" << dendl;
+ opos = bh->end();
+ continue;
+ }
+
+ ceph_assert(opos >= bh->start());
+ ceph_assert(bh->start() == opos); // we don't merge rx bh's... yet!
+ ceph_assert(bh->length() <= start+(loff_t)length-opos);
+
+ if (bh->error < 0)
+ err = bh->error;
+
+ opos = bh->end();
+
+ if (r == -ENOENT) {
+ if (trust_enoent) {
+ ldout(cct, 10) << "bh_read_finish removing " << *bh << dendl;
+ bh_remove(ob, bh);
+ delete bh;
+ } else {
+ ldout(cct, 10) << "skipping unstrusted -ENOENT and will retry for "
+ << *bh << dendl;
+ }
+ continue;
+ }
+
+ if (r < 0) {
+ bh->error = r;
+ mark_error(bh);
+ } else {
+ bh->bl.substr_of(bl,
+ bh->start() - start,
+ bh->length());
+ mark_clean(bh);
+ }
+
+ ldout(cct, 10) << "bh_read_finish read " << *bh << dendl;
+
+ ob->try_merge_bh(bh);
+ }
+ }
+
+ // called with lock held.
+ ldout(cct, 20) << "finishing waiters " << ls << dendl;
+
+ finish_contexts(cct, ls, err);
+ retry_waiting_reads();
+
+ --reads_outstanding;
+ read_cond.notify_all();
+}
+
+void ObjectCacher::bh_write_adjacencies(BufferHead *bh, ceph::real_time cutoff,
+ int64_t *max_amount, int *max_count)
+{
+ list<BufferHead*> blist;
+
+ int count = 0;
+ int64_t total_len = 0;
+ set<BufferHead*, BufferHead::ptr_lt>::iterator it = dirty_or_tx_bh.find(bh);
+ ceph_assert(it != dirty_or_tx_bh.end());
+ for (set<BufferHead*, BufferHead::ptr_lt>::iterator p = it;
+ p != dirty_or_tx_bh.end();
+ ++p) {
+ BufferHead *obh = *p;
+ if (obh->ob != bh->ob)
+ break;
+ if (obh->is_dirty() && obh->last_write <= cutoff) {
+ blist.push_back(obh);
+ ++count;
+ total_len += obh->length();
+ if ((max_count && count > *max_count) ||
+ (max_amount && total_len > *max_amount))
+ break;
+ }
+ }
+
+ while (it != dirty_or_tx_bh.begin()) {
+ --it;
+ BufferHead *obh = *it;
+ if (obh->ob != bh->ob)
+ break;
+ if (obh->is_dirty() && obh->last_write <= cutoff) {
+ blist.push_front(obh);
+ ++count;
+ total_len += obh->length();
+ if ((max_count && count > *max_count) ||
+ (max_amount && total_len > *max_amount))
+ break;
+ }
+ }
+ if (max_count)
+ *max_count -= count;
+ if (max_amount)
+ *max_amount -= total_len;
+
+ bh_write_scattered(blist);
+}
+
+class ObjectCacher::C_WriteCommit : public Context {
+ ObjectCacher *oc;
+ int64_t poolid;
+ sobject_t oid;
+ vector<pair<loff_t, uint64_t> > ranges;
+ ZTracer::Trace trace;
+public:
+ ceph_tid_t tid = 0;
+ C_WriteCommit(ObjectCacher *c, int64_t _poolid, sobject_t o, loff_t s,
+ uint64_t l, const ZTracer::Trace &trace) :
+ oc(c), poolid(_poolid), oid(o), trace(trace) {
+ ranges.push_back(make_pair(s, l));
+ }
+ C_WriteCommit(ObjectCacher *c, int64_t _poolid, sobject_t o,
+ vector<pair<loff_t, uint64_t> >& _ranges) :
+ oc(c), poolid(_poolid), oid(o), tid(0) {
+ ranges.swap(_ranges);
+ }
+ void finish(int r) override {
+ oc->bh_write_commit(poolid, oid, ranges, tid, r);
+ trace.event("finish");
+ }
+};
+void ObjectCacher::bh_write_scattered(list<BufferHead*>& blist)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+
+ Object *ob = blist.front()->ob;
+ ob->get();
+
+ ceph::real_time last_write;
+ SnapContext snapc;
+ vector<pair<loff_t, uint64_t> > ranges;
+ vector<pair<uint64_t, bufferlist> > io_vec;
+
+ ranges.reserve(blist.size());
+ io_vec.reserve(blist.size());
+
+ uint64_t total_len = 0;
+ for (list<BufferHead*>::iterator p = blist.begin(); p != blist.end(); ++p) {
+ BufferHead *bh = *p;
+ ldout(cct, 7) << "bh_write_scattered " << *bh << dendl;
+ ceph_assert(bh->ob == ob);
+ ceph_assert(bh->bl.length() == bh->length());
+ ranges.push_back(pair<loff_t, uint64_t>(bh->start(), bh->length()));
+
+ int n = io_vec.size();
+ io_vec.resize(n + 1);
+ io_vec[n].first = bh->start();
+ io_vec[n].second = bh->bl;
+
+ total_len += bh->length();
+ if (bh->snapc.seq > snapc.seq)
+ snapc = bh->snapc;
+ if (bh->last_write > last_write)
+ last_write = bh->last_write;
+ }
+
+ C_WriteCommit *oncommit = new C_WriteCommit(this, ob->oloc.pool, ob->get_soid(), ranges);
+
+ ceph_tid_t tid = writeback_handler.write(ob->get_oid(), ob->get_oloc(),
+ io_vec, snapc, last_write,
+ ob->truncate_size, ob->truncate_seq,
+ oncommit);
+ oncommit->tid = tid;
+ ob->last_write_tid = tid;
+ for (list<BufferHead*>::iterator p = blist.begin(); p != blist.end(); ++p) {
+ BufferHead *bh = *p;
+ bh->last_write_tid = tid;
+ mark_tx(bh);
+ }
+
+ if (perfcounter)
+ perfcounter->inc(l_objectcacher_data_flushed, total_len);
+}
+
+void ObjectCacher::bh_write(BufferHead *bh, const ZTracer::Trace &parent_trace)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ ldout(cct, 7) << "bh_write " << *bh << dendl;
+
+ bh->ob->get();
+
+ ZTracer::Trace trace;
+ if (parent_trace.valid()) {
+ trace.init("", &trace_endpoint, &parent_trace);
+ trace.copy_name("bh_write " + bh->ob->get_oid().name);
+ trace.event("start");
+ }
+
+ // finishers
+ C_WriteCommit *oncommit = new C_WriteCommit(this, bh->ob->oloc.pool,
+ bh->ob->get_soid(), bh->start(),
+ bh->length(), trace);
+ // go
+ ceph_tid_t tid = writeback_handler.write(bh->ob->get_oid(),
+ bh->ob->get_oloc(),
+ bh->start(), bh->length(),
+ bh->snapc, bh->bl, bh->last_write,
+ bh->ob->truncate_size,
+ bh->ob->truncate_seq,
+ bh->journal_tid, trace, oncommit);
+ ldout(cct, 20) << " tid " << tid << " on " << bh->ob->get_oid() << dendl;
+
+ // set bh last_write_tid
+ oncommit->tid = tid;
+ bh->ob->last_write_tid = tid;
+ bh->last_write_tid = tid;
+
+ if (perfcounter) {
+ perfcounter->inc(l_objectcacher_data_flushed, bh->length());
+ }
+
+ mark_tx(bh);
+}
+
+void ObjectCacher::bh_write_commit(int64_t poolid, sobject_t oid,
+ vector<pair<loff_t, uint64_t> >& ranges,
+ ceph_tid_t tid, int r)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ ldout(cct, 7) << "bh_write_commit " << oid << " tid " << tid
+ << " ranges " << ranges << " returned " << r << dendl;
+
+ if (objects[poolid].count(oid) == 0) {
+ ldout(cct, 7) << "bh_write_commit no object cache" << dendl;
+ return;
+ }
+
+ Object *ob = objects[poolid][oid];
+ int was_dirty_or_tx = ob->oset->dirty_or_tx;
+
+ for (vector<pair<loff_t, uint64_t> >::iterator p = ranges.begin();
+ p != ranges.end();
+ ++p) {
+ loff_t start = p->first;
+ uint64_t length = p->second;
+ if (!ob->exists) {
+ ldout(cct, 10) << "bh_write_commit marking exists on " << *ob << dendl;
+ ob->exists = true;
+
+ if (writeback_handler.may_copy_on_write(ob->get_oid(), start, length,
+ ob->get_snap())) {
+ ldout(cct, 10) << "bh_write_commit may copy on write, clearing "
+ "complete on " << *ob << dendl;
+ ob->complete = false;
+ }
+ }
+
+ vector<pair<loff_t, BufferHead*>> hit;
+ // apply to bh's!
+ for (map<loff_t, BufferHead*>::const_iterator p = ob->data_lower_bound(start);
+ p != ob->data.end();
+ ++p) {
+ BufferHead *bh = p->second;
+
+ if (bh->start() >= start+(loff_t)length)
+ break;
+
+ // make sure bh is tx
+ if (!bh->is_tx()) {
+ ldout(cct, 10) << "bh_write_commit skipping non-tx " << *bh << dendl;
+ continue;
+ }
+
+ // make sure bh tid matches
+ if (bh->last_write_tid != tid) {
+ ceph_assert(bh->last_write_tid > tid);
+ ldout(cct, 10) << "bh_write_commit newer tid on " << *bh << dendl;
+ continue;
+ }
+
+ // we don't merge tx buffers. tx buffer should be within the range
+ ceph_assert(bh->start() >= start);
+ ceph_assert(bh->end() <= start+(loff_t)length);
+
+ if (r >= 0) {
+ // ok! mark bh clean and error-free
+ mark_clean(bh);
+ bh->set_journal_tid(0);
+ if (bh->get_nocache())
+ bh_lru_rest.lru_bottouch(bh);
+ hit.push_back(make_pair(bh->start(), bh));
+ ldout(cct, 10) << "bh_write_commit clean " << *bh << dendl;
+ } else {
+ mark_dirty(bh);
+ ldout(cct, 10) << "bh_write_commit marking dirty again due to error "
+ << *bh << " r = " << r << " " << cpp_strerror(-r)
+ << dendl;
+ }
+ }
+
+ for (auto& p : hit) {
+ //p.second maybe merged and deleted in merge_left
+ if (ob->data.count(p.first))
+ ob->try_merge_bh(p.second);
+ }
+ }
+
+ // update last_commit.
+ ceph_assert(ob->last_commit_tid < tid);
+ ob->last_commit_tid = tid;
+
+ // waiters?
+ list<Context*> ls;
+ if (ob->waitfor_commit.count(tid)) {
+ ls.splice(ls.begin(), ob->waitfor_commit[tid]);
+ ob->waitfor_commit.erase(tid);
+ }
+
+ // is the entire object set now clean and fully committed?
+ ObjectSet *oset = ob->oset;
+ ob->put();
+
+ if (flush_set_callback &&
+ was_dirty_or_tx > 0 &&
+ oset->dirty_or_tx == 0) { // nothing dirty/tx
+ flush_set_callback(flush_set_callback_arg, oset);
+ }
+
+ if (!ls.empty())
+ finish_contexts(cct, ls, r);
+}
+
+void ObjectCacher::flush(ZTracer::Trace *trace, loff_t amount)
+{
+ ceph_assert(trace != nullptr);
+ ceph_assert(ceph_mutex_is_locked(lock));
+ ceph::real_time cutoff = ceph::real_clock::now();
+
+ ldout(cct, 10) << "flush " << amount << dendl;
+
+ /*
+ * NOTE: we aren't actually pulling things off the LRU here, just
+ * looking at the tail item. Then we call bh_write, which moves it
+ * to the other LRU, so that we can call
+ * lru_dirty.lru_get_next_expire() again.
+ */
+ int64_t left = amount;
+ while (amount == 0 || left > 0) {
+ BufferHead *bh = static_cast<BufferHead*>(
+ bh_lru_dirty.lru_get_next_expire());
+ if (!bh) break;
+ if (bh->last_write > cutoff) break;
+
+ if (scattered_write) {
+ bh_write_adjacencies(bh, cutoff, amount > 0 ? &left : NULL, NULL);
+ } else {
+ left -= bh->length();
+ bh_write(bh, *trace);
+ }
+ }
+}
+
+
+void ObjectCacher::trim()
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ ldout(cct, 10) << "trim start: bytes: max " << max_size << " clean "
+ << get_stat_clean() << ", objects: max " << max_objects
+ << " current " << ob_lru.lru_get_size() << dendl;
+
+ uint64_t max_clean_bh = max_size >> BUFFER_MEMORY_WEIGHT;
+ uint64_t nr_clean_bh = bh_lru_rest.lru_get_size() - bh_lru_rest.lru_get_num_pinned();
+ while (get_stat_clean() > 0 &&
+ ((uint64_t)get_stat_clean() > max_size ||
+ nr_clean_bh > max_clean_bh)) {
+ BufferHead *bh = static_cast<BufferHead*>(bh_lru_rest.lru_expire());
+ if (!bh)
+ break;
+
+ ldout(cct, 10) << "trim trimming " << *bh << dendl;
+ ceph_assert(bh->is_clean() || bh->is_zero() || bh->is_error());
+
+ Object *ob = bh->ob;
+ bh_remove(ob, bh);
+ delete bh;
+
+ --nr_clean_bh;
+
+ if (ob->complete) {
+ ldout(cct, 10) << "trim clearing complete on " << *ob << dendl;
+ ob->complete = false;
+ }
+ }
+
+ while (ob_lru.lru_get_size() > max_objects) {
+ Object *ob = static_cast<Object*>(ob_lru.lru_expire());
+ if (!ob)
+ break;
+
+ ldout(cct, 10) << "trim trimming " << *ob << dendl;
+ close_object(ob);
+ }
+
+ ldout(cct, 10) << "trim finish: max " << max_size << " clean "
+ << get_stat_clean() << ", objects: max " << max_objects
+ << " current " << ob_lru.lru_get_size() << dendl;
+}
+
+
+
+/* public */
+
+bool ObjectCacher::is_cached(ObjectSet *oset, vector<ObjectExtent>& extents,
+ snapid_t snapid)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ for (vector<ObjectExtent>::iterator ex_it = extents.begin();
+ ex_it != extents.end();
+ ++ex_it) {
+ ldout(cct, 10) << "is_cached " << *ex_it << dendl;
+
+ // get Object cache
+ sobject_t soid(ex_it->oid, snapid);
+ Object *o = get_object_maybe(soid, ex_it->oloc);
+ if (!o)
+ return false;
+ if (!o->is_cached(ex_it->offset, ex_it->length))
+ return false;
+ }
+ return true;
+}
+
+
+/*
+ * returns # bytes read (if in cache). onfinish is untouched (caller
+ * must delete it)
+ * returns 0 if doing async read
+ */
+int ObjectCacher::readx(OSDRead *rd, ObjectSet *oset, Context *onfinish,
+ ZTracer::Trace *parent_trace)
+{
+ ZTracer::Trace trace;
+ if (parent_trace != nullptr) {
+ trace.init("read", &trace_endpoint, parent_trace);
+ trace.event("start");
+ }
+
+ int r =_readx(rd, oset, onfinish, true, &trace);
+ if (r < 0) {
+ trace.event("finish");
+ }
+ return r;
+}
+
+int ObjectCacher::_readx(OSDRead *rd, ObjectSet *oset, Context *onfinish,
+ bool external_call, ZTracer::Trace *trace)
+{
+ ceph_assert(trace != nullptr);
+ ceph_assert(ceph_mutex_is_locked(lock));
+ bool success = true;
+ int error = 0;
+ uint64_t bytes_in_cache = 0;
+ uint64_t bytes_not_in_cache = 0;
+ uint64_t total_bytes_read = 0;
+ map<uint64_t, bufferlist> stripe_map; // final buffer offset -> substring
+ bool dontneed = rd->fadvise_flags & LIBRADOS_OP_FLAG_FADVISE_DONTNEED;
+ bool nocache = rd->fadvise_flags & LIBRADOS_OP_FLAG_FADVISE_NOCACHE;
+
+ /*
+ * WARNING: we can only meaningfully return ENOENT if the read request
+ * passed in a single ObjectExtent. Any caller who wants ENOENT instead of
+ * zeroed buffers needs to feed single extents into readx().
+ */
+ ceph_assert(!oset->return_enoent || rd->extents.size() == 1);
+
+ for (vector<ObjectExtent>::iterator ex_it = rd->extents.begin();
+ ex_it != rd->extents.end();
+ ++ex_it) {
+ ldout(cct, 10) << "readx " << *ex_it << dendl;
+
+ total_bytes_read += ex_it->length;
+
+ // get Object cache
+ sobject_t soid(ex_it->oid, rd->snap);
+ Object *o = get_object(soid, ex_it->objectno, oset, ex_it->oloc,
+ ex_it->truncate_size, oset->truncate_seq);
+ if (external_call)
+ touch_ob(o);
+
+ // does not exist and no hits?
+ if (oset->return_enoent && !o->exists) {
+ ldout(cct, 10) << "readx object !exists, 1 extent..." << dendl;
+
+ // should we worry about COW underneath us?
+ if (writeback_handler.may_copy_on_write(soid.oid, ex_it->offset,
+ ex_it->length, soid.snap)) {
+ ldout(cct, 20) << "readx may copy on write" << dendl;
+ bool wait = false;
+ list<BufferHead*> blist;
+ for (map<loff_t, BufferHead*>::iterator bh_it = o->data.begin();
+ bh_it != o->data.end();
+ ++bh_it) {
+ BufferHead *bh = bh_it->second;
+ if (bh->is_dirty() || bh->is_tx()) {
+ ldout(cct, 10) << "readx flushing " << *bh << dendl;
+ wait = true;
+ if (bh->is_dirty()) {
+ if (scattered_write)
+ blist.push_back(bh);
+ else
+ bh_write(bh, *trace);
+ }
+ }
+ }
+ if (scattered_write && !blist.empty())
+ bh_write_scattered(blist);
+ if (wait) {
+ ldout(cct, 10) << "readx waiting on tid " << o->last_write_tid
+ << " on " << *o << dendl;
+ o->waitfor_commit[o->last_write_tid].push_back(
+ new C_RetryRead(this,rd, oset, onfinish, *trace));
+ // FIXME: perfcounter!
+ return 0;
+ }
+ }
+
+ // can we return ENOENT?
+ bool allzero = true;
+ for (map<loff_t, BufferHead*>::iterator bh_it = o->data.begin();
+ bh_it != o->data.end();
+ ++bh_it) {
+ ldout(cct, 20) << "readx ob has bh " << *bh_it->second << dendl;
+ if (!bh_it->second->is_zero() && !bh_it->second->is_rx()) {
+ allzero = false;
+ break;
+ }
+ }
+ if (allzero) {
+ ldout(cct, 10) << "readx ob has all zero|rx, returning ENOENT"
+ << dendl;
+ delete rd;
+ if (dontneed)
+ bottouch_ob(o);
+ return -ENOENT;
+ }
+ }
+
+ // map extent into bufferheads
+ map<loff_t, BufferHead*> hits, missing, rx, errors;
+ o->map_read(*ex_it, hits, missing, rx, errors);
+ if (external_call) {
+ // retry reading error buffers
+ missing.insert(errors.begin(), errors.end());
+ } else {
+ // some reads had errors, fail later so completions
+ // are cleaned up properly
+ // TODO: make read path not call _readx for every completion
+ hits.insert(errors.begin(), errors.end());
+ }
+
+ if (!missing.empty() || !rx.empty()) {
+ // read missing
+ map<loff_t, BufferHead*>::iterator last = missing.end();
+ for (map<loff_t, BufferHead*>::iterator bh_it = missing.begin();
+ bh_it != missing.end();
+ ++bh_it) {
+ uint64_t rx_bytes = static_cast<uint64_t>(
+ stat_rx + bh_it->second->length());
+ bytes_not_in_cache += bh_it->second->length();
+ if (!waitfor_read.empty() || (stat_rx > 0 && rx_bytes > max_size)) {
+ // cache is full with concurrent reads -- wait for rx's to complete
+ // to constrain memory growth (especially during copy-ups)
+ if (success) {
+ ldout(cct, 10) << "readx missed, waiting on cache to complete "
+ << waitfor_read.size() << " blocked reads, "
+ << (std::max(rx_bytes, max_size) - max_size)
+ << " read bytes" << dendl;
+ waitfor_read.push_back(new C_RetryRead(this, rd, oset, onfinish,
+ *trace));
+ }
+
+ bh_remove(o, bh_it->second);
+ delete bh_it->second;
+ } else {
+ bh_it->second->set_nocache(nocache);
+ bh_read(bh_it->second, rd->fadvise_flags, *trace);
+ if ((success && onfinish) || last != missing.end())
+ last = bh_it;
+ }
+ success = false;
+ }
+
+ //add wait in last bh avoid wakeup early. Because read is order
+ if (last != missing.end()) {
+ ldout(cct, 10) << "readx missed, waiting on " << *last->second
+ << " off " << last->first << dendl;
+ last->second->waitfor_read[last->first].push_back(
+ new C_RetryRead(this, rd, oset, onfinish, *trace) );
+
+ }
+
+ // bump rx
+ for (map<loff_t, BufferHead*>::iterator bh_it = rx.begin();
+ bh_it != rx.end();
+ ++bh_it) {
+ touch_bh(bh_it->second); // bump in lru, so we don't lose it.
+ if (success && onfinish) {
+ ldout(cct, 10) << "readx missed, waiting on " << *bh_it->second
+ << " off " << bh_it->first << dendl;
+ bh_it->second->waitfor_read[bh_it->first].push_back(
+ new C_RetryRead(this, rd, oset, onfinish, *trace) );
+ }
+ bytes_not_in_cache += bh_it->second->length();
+ success = false;
+ }
+
+ for (map<loff_t, BufferHead*>::iterator bh_it = hits.begin();
+ bh_it != hits.end(); ++bh_it)
+ //bump in lru, so we don't lose it when later read
+ touch_bh(bh_it->second);
+
+ } else {
+ ceph_assert(!hits.empty());
+
+ // make a plain list
+ for (map<loff_t, BufferHead*>::iterator bh_it = hits.begin();
+ bh_it != hits.end();
+ ++bh_it) {
+ BufferHead *bh = bh_it->second;
+ ldout(cct, 10) << "readx hit bh " << *bh << dendl;
+ if (bh->is_error() && bh->error)
+ error = bh->error;
+ bytes_in_cache += bh->length();
+
+ if (bh->get_nocache() && bh->is_clean())
+ bh_lru_rest.lru_bottouch(bh);
+ else
+ touch_bh(bh);
+ //must be after touch_bh because touch_bh set dontneed false
+ if (dontneed &&
+ ((loff_t)ex_it->offset <= bh->start() &&
+ (bh->end() <=(loff_t)(ex_it->offset + ex_it->length)))) {
+ bh->set_dontneed(true); //if dirty
+ if (bh->is_clean())
+ bh_lru_rest.lru_bottouch(bh);
+ }
+ }
+
+ if (!error) {
+ // create reverse map of buffer offset -> object for the
+ // eventual result. this is over a single ObjectExtent, so we
+ // know that
+ // - the bh's are contiguous
+ // - the buffer frags need not be (and almost certainly aren't)
+ loff_t opos = ex_it->offset;
+ map<loff_t, BufferHead*>::iterator bh_it = hits.begin();
+ ceph_assert(bh_it->second->start() <= opos);
+ uint64_t bhoff = opos - bh_it->second->start();
+ vector<pair<uint64_t,uint64_t> >::iterator f_it
+ = ex_it->buffer_extents.begin();
+ uint64_t foff = 0;
+ while (1) {
+ BufferHead *bh = bh_it->second;
+ ceph_assert(opos == (loff_t)(bh->start() + bhoff));
+
+ uint64_t len = std::min(f_it->second - foff, bh->length() - bhoff);
+ ldout(cct, 10) << "readx rmap opos " << opos << ": " << *bh << " +"
+ << bhoff << " frag " << f_it->first << "~"
+ << f_it->second << " +" << foff << "~" << len
+ << dendl;
+
+ bufferlist bit;
+ // put substr here first, since substr_of clobbers, and we
+ // may get multiple bh's at this stripe_map position
+ if (bh->is_zero()) {
+ stripe_map[f_it->first].append_zero(len);
+ } else {
+ bit.substr_of(bh->bl,
+ opos - bh->start(),
+ len);
+ stripe_map[f_it->first].claim_append(bit);
+ }
+
+ opos += len;
+ bhoff += len;
+ foff += len;
+ if (opos == bh->end()) {
+ ++bh_it;
+ bhoff = 0;
+ }
+ if (foff == f_it->second) {
+ ++f_it;
+ foff = 0;
+ }
+ if (bh_it == hits.end()) break;
+ if (f_it == ex_it->buffer_extents.end())
+ break;
+ }
+ ceph_assert(f_it == ex_it->buffer_extents.end());
+ ceph_assert(opos == (loff_t)ex_it->offset + (loff_t)ex_it->length);
+ }
+
+ if (dontneed && o->include_all_cached_data(ex_it->offset, ex_it->length))
+ bottouch_ob(o);
+ }
+ }
+
+ if (!success) {
+ if (perfcounter && external_call) {
+ perfcounter->inc(l_objectcacher_data_read, total_bytes_read);
+ perfcounter->inc(l_objectcacher_cache_bytes_miss, bytes_not_in_cache);
+ perfcounter->inc(l_objectcacher_cache_ops_miss);
+ }
+ if (onfinish) {
+ ldout(cct, 20) << "readx defer " << rd << dendl;
+ } else {
+ ldout(cct, 20) << "readx drop " << rd << " (no complete, but no waiter)"
+ << dendl;
+ delete rd;
+ }
+ return 0; // wait!
+ }
+ if (perfcounter && external_call) {
+ perfcounter->inc(l_objectcacher_data_read, total_bytes_read);
+ perfcounter->inc(l_objectcacher_cache_bytes_hit, bytes_in_cache);
+ perfcounter->inc(l_objectcacher_cache_ops_hit);
+ }
+
+ // no misses... success! do the read.
+ ldout(cct, 10) << "readx has all buffers" << dendl;
+
+ // ok, assemble into result buffer.
+ uint64_t pos = 0;
+ if (rd->bl && !error) {
+ rd->bl->clear();
+ for (map<uint64_t,bufferlist>::iterator i = stripe_map.begin();
+ i != stripe_map.end();
+ ++i) {
+ ceph_assert(pos == i->first);
+ ldout(cct, 10) << "readx adding buffer len " << i->second.length()
+ << " at " << pos << dendl;
+ pos += i->second.length();
+ rd->bl->claim_append(i->second);
+ ceph_assert(rd->bl->length() == pos);
+ }
+ ldout(cct, 10) << "readx result is " << rd->bl->length() << dendl;
+ } else if (!error) {
+ ldout(cct, 10) << "readx no bufferlist ptr (readahead?), done." << dendl;
+ map<uint64_t,bufferlist>::reverse_iterator i = stripe_map.rbegin();
+ pos = i->first + i->second.length();
+ }
+
+ // done with read.
+ int ret = error ? error : pos;
+ ldout(cct, 20) << "readx done " << rd << " " << ret << dendl;
+ ceph_assert(pos <= (uint64_t) INT_MAX);
+
+ delete rd;
+
+ trim();
+
+ return ret;
+}
+
+void ObjectCacher::retry_waiting_reads()
+{
+ list<Context *> ls;
+ ls.swap(waitfor_read);
+
+ while (!ls.empty() && waitfor_read.empty()) {
+ Context *ctx = ls.front();
+ ls.pop_front();
+ ctx->complete(0);
+ }
+ waitfor_read.splice(waitfor_read.end(), ls);
+}
+
+int ObjectCacher::writex(OSDWrite *wr, ObjectSet *oset, Context *onfreespace,
+ ZTracer::Trace *parent_trace)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ ceph::real_time now = ceph::real_clock::now();
+ uint64_t bytes_written = 0;
+ uint64_t bytes_written_in_flush = 0;
+ bool dontneed = wr->fadvise_flags & LIBRADOS_OP_FLAG_FADVISE_DONTNEED;
+ bool nocache = wr->fadvise_flags & LIBRADOS_OP_FLAG_FADVISE_NOCACHE;
+
+ ZTracer::Trace trace;
+ if (parent_trace != nullptr) {
+ trace.init("write", &trace_endpoint, parent_trace);
+ trace.event("start");
+ }
+
+ list<Context*> wait_for_reads;
+ for (vector<ObjectExtent>::iterator ex_it = wr->extents.begin();
+ ex_it != wr->extents.end();
+ ++ex_it) {
+ // get object cache
+ sobject_t soid(ex_it->oid, CEPH_NOSNAP);
+ Object *o = get_object(soid, ex_it->objectno, oset, ex_it->oloc,
+ ex_it->truncate_size, oset->truncate_seq);
+
+ // map it all into a single bufferhead.
+ BufferHead *bh = o->map_write(*ex_it, wr->journal_tid);
+ bool missing = bh->is_missing();
+ bh->snapc = wr->snapc;
+
+ // readers that need to be woken up due to an overwrite
+ for (auto& [_, wait_for_read] : bh->waitfor_read) {
+ wait_for_reads.splice(wait_for_reads.end(), wait_for_read);
+ }
+ bh->waitfor_read.clear();
+
+ bytes_written += ex_it->length;
+ if (bh->is_tx()) {
+ bytes_written_in_flush += ex_it->length;
+ }
+
+ // adjust buffer pointers (ie "copy" data into my cache)
+ // this is over a single ObjectExtent, so we know that
+ // - there is one contiguous bh
+ // - the buffer frags need not be (and almost certainly aren't)
+ // note: i assume striping is monotonic... no jumps backwards, ever!
+ loff_t opos = ex_it->offset;
+ for (vector<pair<uint64_t, uint64_t> >::iterator f_it
+ = ex_it->buffer_extents.begin();
+ f_it != ex_it->buffer_extents.end();
+ ++f_it) {
+ ldout(cct, 10) << "writex writing " << f_it->first << "~"
+ << f_it->second << " into " << *bh << " at " << opos
+ << dendl;
+ uint64_t bhoff = opos - bh->start();
+ ceph_assert(f_it->second <= bh->length() - bhoff);
+
+ // get the frag we're mapping in
+ bufferlist frag;
+ frag.substr_of(wr->bl, f_it->first, f_it->second);
+
+ // keep anything left of bhoff
+ if (!bhoff)
+ bh->bl.swap(frag);
+ else
+ bh->bl.claim_append(frag);
+
+ opos += f_it->second;
+ }
+
+ // ok, now bh is dirty.
+ mark_dirty(bh);
+ if (dontneed)
+ bh->set_dontneed(true);
+ else if (nocache && missing)
+ bh->set_nocache(true);
+ else
+ touch_bh(bh);
+
+ bh->last_write = now;
+
+ o->try_merge_bh(bh);
+ }
+
+ if (perfcounter) {
+ perfcounter->inc(l_objectcacher_data_written, bytes_written);
+ if (bytes_written_in_flush) {
+ perfcounter->inc(l_objectcacher_overwritten_in_flush,
+ bytes_written_in_flush);
+ }
+ }
+
+ int r = _wait_for_write(wr, bytes_written, oset, &trace, onfreespace);
+ delete wr;
+
+ finish_contexts(cct, wait_for_reads, 0);
+
+ //verify_stats();
+ trim();
+ return r;
+}
+
+class ObjectCacher::C_WaitForWrite : public Context {
+public:
+ C_WaitForWrite(ObjectCacher *oc, uint64_t len,
+ const ZTracer::Trace &trace, Context *onfinish) :
+ m_oc(oc), m_len(len), m_trace(trace), m_onfinish(onfinish) {}
+ void finish(int r) override;
+private:
+ ObjectCacher *m_oc;
+ uint64_t m_len;
+ ZTracer::Trace m_trace;
+ Context *m_onfinish;
+};
+
+void ObjectCacher::C_WaitForWrite::finish(int r)
+{
+ std::lock_guard l(m_oc->lock);
+ m_oc->_maybe_wait_for_writeback(m_len, &m_trace);
+ m_onfinish->complete(r);
+}
+
+void ObjectCacher::_maybe_wait_for_writeback(uint64_t len,
+ ZTracer::Trace *trace)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ ceph::mono_time start = ceph::mono_clock::now();
+ int blocked = 0;
+ // wait for writeback?
+ // - wait for dirty and tx bytes (relative to the max_dirty threshold)
+ // - do not wait for bytes other waiters are waiting on. this means that
+ // threads do not wait for each other. this effectively allows the cache
+ // size to balloon proportional to the data that is in flight.
+
+ uint64_t max_dirty_bh = max_dirty >> BUFFER_MEMORY_WEIGHT;
+ while (get_stat_dirty() + get_stat_tx() > 0 &&
+ (((uint64_t)(get_stat_dirty() + get_stat_tx()) >=
+ max_dirty + get_stat_dirty_waiting()) ||
+ (dirty_or_tx_bh.size() >=
+ max_dirty_bh + get_stat_nr_dirty_waiters()))) {
+
+ if (blocked == 0) {
+ trace->event("start wait for writeback");
+ }
+ ldout(cct, 10) << __func__ << " waiting for dirty|tx "
+ << (get_stat_dirty() + get_stat_tx()) << " >= max "
+ << max_dirty << " + dirty_waiting "
+ << get_stat_dirty_waiting() << dendl;
+ flusher_cond.notify_all();
+ stat_dirty_waiting += len;
+ ++stat_nr_dirty_waiters;
+ std::unique_lock l{lock, std::adopt_lock};
+ stat_cond.wait(l);
+ l.release();
+ stat_dirty_waiting -= len;
+ --stat_nr_dirty_waiters;
+ ++blocked;
+ ldout(cct, 10) << __func__ << " woke up" << dendl;
+ }
+ if (blocked > 0) {
+ trace->event("finish wait for writeback");
+ }
+ if (blocked && perfcounter) {
+ perfcounter->inc(l_objectcacher_write_ops_blocked);
+ perfcounter->inc(l_objectcacher_write_bytes_blocked, len);
+ ceph::timespan blocked = ceph::mono_clock::now() - start;
+ perfcounter->tinc(l_objectcacher_write_time_blocked, blocked);
+ }
+}
+
+// blocking wait for write.
+int ObjectCacher::_wait_for_write(OSDWrite *wr, uint64_t len, ObjectSet *oset,
+ ZTracer::Trace *trace, Context *onfreespace)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ ceph_assert(trace != nullptr);
+ int ret = 0;
+
+ if (max_dirty > 0 && !(wr->fadvise_flags & LIBRADOS_OP_FLAG_FADVISE_FUA)) {
+ if (block_writes_upfront) {
+ _maybe_wait_for_writeback(len, trace);
+ if (onfreespace)
+ onfreespace->complete(0);
+ } else {
+ ceph_assert(onfreespace);
+ finisher.queue(new C_WaitForWrite(this, len, *trace, onfreespace));
+ }
+ } else {
+ // write-thru! flush what we just wrote.
+ ceph::condition_variable cond;
+ bool done = false;
+ Context *fin = block_writes_upfront ?
+ new C_Cond(cond, &done, &ret) : onfreespace;
+ ceph_assert(fin);
+ bool flushed = flush_set(oset, wr->extents, trace, fin);
+ ceph_assert(!flushed); // we just dirtied it, and didn't drop our lock!
+ ldout(cct, 10) << "wait_for_write waiting on write-thru of " << len
+ << " bytes" << dendl;
+ if (block_writes_upfront) {
+ std::unique_lock l{lock, std::adopt_lock};
+ cond.wait(l, [&done] { return done; });
+ l.release();
+ ldout(cct, 10) << "wait_for_write woke up, ret " << ret << dendl;
+ if (onfreespace)
+ onfreespace->complete(ret);
+ }
+ }
+
+ // start writeback anyway?
+ if (get_stat_dirty() > 0 && (uint64_t) get_stat_dirty() > target_dirty) {
+ ldout(cct, 10) << "wait_for_write " << get_stat_dirty() << " > target "
+ << target_dirty << ", nudging flusher" << dendl;
+ flusher_cond.notify_all();
+ }
+ return ret;
+}
+
+void ObjectCacher::flusher_entry()
+{
+ ldout(cct, 10) << "flusher start" << dendl;
+ std::unique_lock l{lock};
+ while (!flusher_stop) {
+ loff_t all = get_stat_tx() + get_stat_rx() + get_stat_clean() +
+ get_stat_dirty();
+ ldout(cct, 11) << "flusher "
+ << all << " / " << max_size << ": "
+ << get_stat_tx() << " tx, "
+ << get_stat_rx() << " rx, "
+ << get_stat_clean() << " clean, "
+ << get_stat_dirty() << " dirty ("
+ << target_dirty << " target, "
+ << max_dirty << " max)"
+ << dendl;
+ loff_t actual = get_stat_dirty() + get_stat_dirty_waiting();
+
+ ZTracer::Trace trace;
+ if (cct->_conf->osdc_blkin_trace_all) {
+ trace.init("flusher", &trace_endpoint);
+ trace.event("start");
+ }
+
+ if (actual > 0 && (uint64_t) actual > target_dirty) {
+ // flush some dirty pages
+ ldout(cct, 10) << "flusher " << get_stat_dirty() << " dirty + "
+ << get_stat_dirty_waiting() << " dirty_waiting > target "
+ << target_dirty << ", flushing some dirty bhs" << dendl;
+ flush(&trace, actual - target_dirty);
+ } else {
+ // check tail of lru for old dirty items
+ ceph::real_time cutoff = ceph::real_clock::now();
+ cutoff -= max_dirty_age;
+ BufferHead *bh = 0;
+ int max = MAX_FLUSH_UNDER_LOCK;
+ while ((bh = static_cast<BufferHead*>(bh_lru_dirty.
+ lru_get_next_expire())) != 0 &&
+ bh->last_write <= cutoff &&
+ max > 0) {
+ ldout(cct, 10) << "flusher flushing aged dirty bh " << *bh << dendl;
+ if (scattered_write) {
+ bh_write_adjacencies(bh, cutoff, NULL, &max);
+ } else {
+ bh_write(bh, trace);
+ --max;
+ }
+ }
+ if (!max) {
+ // back off the lock to avoid starving other threads
+ trace.event("backoff");
+ l.unlock();
+ l.lock();
+ continue;
+ }
+ }
+
+ trace.event("finish");
+ if (flusher_stop)
+ break;
+
+ flusher_cond.wait_for(l, 1s);
+ }
+
+ /* Wait for reads to finish. This is only possible if handling
+ * -ENOENT made some read completions finish before their rados read
+ * came back. If we don't wait for them, and destroy the cache, when
+ * the rados reads do come back their callback will try to access the
+ * no-longer-valid ObjectCacher.
+ */
+ read_cond.wait(l, [this] {
+ if (reads_outstanding > 0) {
+ ldout(cct, 10) << "Waiting for all reads to complete. Number left: "
+ << reads_outstanding << dendl;
+ return false;
+ } else {
+ return true;
+ }
+ });
+ ldout(cct, 10) << "flusher finish" << dendl;
+}
+
+
+// -------------------------------------------------
+
+bool ObjectCacher::set_is_empty(ObjectSet *oset)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ if (oset->objects.empty())
+ return true;
+
+ for (xlist<Object*>::iterator p = oset->objects.begin(); !p.end(); ++p)
+ if (!(*p)->is_empty())
+ return false;
+
+ return true;
+}
+
+bool ObjectCacher::set_is_cached(ObjectSet *oset)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ if (oset->objects.empty())
+ return false;
+
+ for (xlist<Object*>::iterator p = oset->objects.begin();
+ !p.end(); ++p) {
+ Object *ob = *p;
+ for (map<loff_t,BufferHead*>::iterator q = ob->data.begin();
+ q != ob->data.end();
+ ++q) {
+ BufferHead *bh = q->second;
+ if (!bh->is_dirty() && !bh->is_tx())
+ return true;
+ }
+ }
+
+ return false;
+}
+
+bool ObjectCacher::set_is_dirty_or_committing(ObjectSet *oset)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ if (oset->objects.empty())
+ return false;
+
+ for (xlist<Object*>::iterator i = oset->objects.begin();
+ !i.end(); ++i) {
+ Object *ob = *i;
+
+ for (map<loff_t,BufferHead*>::iterator p = ob->data.begin();
+ p != ob->data.end();
+ ++p) {
+ BufferHead *bh = p->second;
+ if (bh->is_dirty() || bh->is_tx())
+ return true;
+ }
+ }
+
+ return false;
+}
+
+
+// purge. non-blocking. violently removes dirty buffers from cache.
+void ObjectCacher::purge(Object *ob)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ ldout(cct, 10) << "purge " << *ob << dendl;
+
+ ob->truncate(0);
+}
+
+
+// flush. non-blocking. no callback.
+// true if clean, already flushed.
+// false if we wrote something.
+// be sloppy about the ranges and flush any buffer it touches
+bool ObjectCacher::flush(Object *ob, loff_t offset, loff_t length,
+ ZTracer::Trace *trace)
+{
+ ceph_assert(trace != nullptr);
+ ceph_assert(ceph_mutex_is_locked(lock));
+ list<BufferHead*> blist;
+ bool clean = true;
+ ldout(cct, 10) << "flush " << *ob << " " << offset << "~" << length << dendl;
+ for (map<loff_t,BufferHead*>::const_iterator p = ob->data_lower_bound(offset);
+ p != ob->data.end();
+ ++p) {
+ BufferHead *bh = p->second;
+ ldout(cct, 20) << "flush " << *bh << dendl;
+ if (length && bh->start() > offset+length) {
+ break;
+ }
+ if (bh->is_tx()) {
+ clean = false;
+ continue;
+ }
+ if (!bh->is_dirty()) {
+ continue;
+ }
+
+ if (scattered_write)
+ blist.push_back(bh);
+ else
+ bh_write(bh, *trace);
+ clean = false;
+ }
+ if (scattered_write && !blist.empty())
+ bh_write_scattered(blist);
+
+ return clean;
+}
+
+bool ObjectCacher::_flush_set_finish(C_GatherBuilder *gather,
+ Context *onfinish)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ if (gather->has_subs()) {
+ gather->set_finisher(onfinish);
+ gather->activate();
+ return false;
+ }
+
+ ldout(cct, 10) << "flush_set has no dirty|tx bhs" << dendl;
+ onfinish->complete(0);
+ return true;
+}
+
+// flush. non-blocking, takes callback.
+// returns true if already flushed
+bool ObjectCacher::flush_set(ObjectSet *oset, Context *onfinish)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ ceph_assert(onfinish != NULL);
+ if (oset->objects.empty()) {
+ ldout(cct, 10) << "flush_set on " << oset << " dne" << dendl;
+ onfinish->complete(0);
+ return true;
+ }
+
+ ldout(cct, 10) << "flush_set " << oset << dendl;
+
+ // we'll need to wait for all objects to flush!
+ C_GatherBuilder gather(cct);
+ set<Object*> waitfor_commit;
+
+ list<BufferHead*> blist;
+ Object *last_ob = NULL;
+ set<BufferHead*, BufferHead::ptr_lt>::const_iterator it, p, q;
+
+ // Buffer heads in dirty_or_tx_bh are sorted in ObjectSet/Object/offset
+ // order. But items in oset->objects are not sorted. So the iterator can
+ // point to any buffer head in the ObjectSet
+ BufferHead key(*oset->objects.begin());
+ it = dirty_or_tx_bh.lower_bound(&key);
+ p = q = it;
+
+ bool backwards = true;
+ if (it != dirty_or_tx_bh.begin())
+ --it;
+ else
+ backwards = false;
+
+ for (; p != dirty_or_tx_bh.end(); p = q) {
+ ++q;
+ BufferHead *bh = *p;
+ if (bh->ob->oset != oset)
+ break;
+ waitfor_commit.insert(bh->ob);
+ if (bh->is_dirty()) {
+ if (scattered_write) {
+ if (last_ob != bh->ob) {
+ if (!blist.empty()) {
+ bh_write_scattered(blist);
+ blist.clear();
+ }
+ last_ob = bh->ob;
+ }
+ blist.push_back(bh);
+ } else {
+ bh_write(bh, {});
+ }
+ }
+ }
+
+ if (backwards) {
+ for(p = q = it; true; p = q) {
+ if (q != dirty_or_tx_bh.begin())
+ --q;
+ else
+ backwards = false;
+ BufferHead *bh = *p;
+ if (bh->ob->oset != oset)
+ break;
+ waitfor_commit.insert(bh->ob);
+ if (bh->is_dirty()) {
+ if (scattered_write) {
+ if (last_ob != bh->ob) {
+ if (!blist.empty()) {
+ bh_write_scattered(blist);
+ blist.clear();
+ }
+ last_ob = bh->ob;
+ }
+ blist.push_front(bh);
+ } else {
+ bh_write(bh, {});
+ }
+ }
+ if (!backwards)
+ break;
+ }
+ }
+
+ if (scattered_write && !blist.empty())
+ bh_write_scattered(blist);
+
+ for (set<Object*>::iterator i = waitfor_commit.begin();
+ i != waitfor_commit.end(); ++i) {
+ Object *ob = *i;
+
+ // we'll need to gather...
+ ldout(cct, 10) << "flush_set " << oset << " will wait for ack tid "
+ << ob->last_write_tid << " on " << *ob << dendl;
+ ob->waitfor_commit[ob->last_write_tid].push_back(gather.new_sub());
+ }
+
+ return _flush_set_finish(&gather, onfinish);
+}
+
+// flush. non-blocking, takes callback.
+// returns true if already flushed
+bool ObjectCacher::flush_set(ObjectSet *oset, vector<ObjectExtent>& exv,
+ ZTracer::Trace *trace, Context *onfinish)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ ceph_assert(trace != nullptr);
+ ceph_assert(onfinish != NULL);
+ if (oset->objects.empty()) {
+ ldout(cct, 10) << "flush_set on " << oset << " dne" << dendl;
+ onfinish->complete(0);
+ return true;
+ }
+
+ ldout(cct, 10) << "flush_set " << oset << " on " << exv.size()
+ << " ObjectExtents" << dendl;
+
+ // we'll need to wait for all objects to flush!
+ C_GatherBuilder gather(cct);
+
+ for (vector<ObjectExtent>::iterator p = exv.begin();
+ p != exv.end();
+ ++p) {
+ ObjectExtent &ex = *p;
+ sobject_t soid(ex.oid, CEPH_NOSNAP);
+ if (objects[oset->poolid].count(soid) == 0)
+ continue;
+ Object *ob = objects[oset->poolid][soid];
+
+ ldout(cct, 20) << "flush_set " << oset << " ex " << ex << " ob " << soid
+ << " " << ob << dendl;
+
+ if (!flush(ob, ex.offset, ex.length, trace)) {
+ // we'll need to gather...
+ ldout(cct, 10) << "flush_set " << oset << " will wait for ack tid "
+ << ob->last_write_tid << " on " << *ob << dendl;
+ ob->waitfor_commit[ob->last_write_tid].push_back(gather.new_sub());
+ }
+ }
+
+ return _flush_set_finish(&gather, onfinish);
+}
+
+// flush all dirty data. non-blocking, takes callback.
+// returns true if already flushed
+bool ObjectCacher::flush_all(Context *onfinish)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ ceph_assert(onfinish != NULL);
+
+ ldout(cct, 10) << "flush_all " << dendl;
+
+ // we'll need to wait for all objects to flush!
+ C_GatherBuilder gather(cct);
+ set<Object*> waitfor_commit;
+
+ list<BufferHead*> blist;
+ Object *last_ob = NULL;
+ set<BufferHead*, BufferHead::ptr_lt>::iterator next, it;
+ next = it = dirty_or_tx_bh.begin();
+ while (it != dirty_or_tx_bh.end()) {
+ ++next;
+ BufferHead *bh = *it;
+ waitfor_commit.insert(bh->ob);
+
+ if (bh->is_dirty()) {
+ if (scattered_write) {
+ if (last_ob != bh->ob) {
+ if (!blist.empty()) {
+ bh_write_scattered(blist);
+ blist.clear();
+ }
+ last_ob = bh->ob;
+ }
+ blist.push_back(bh);
+ } else {
+ bh_write(bh, {});
+ }
+ }
+
+ it = next;
+ }
+
+ if (scattered_write && !blist.empty())
+ bh_write_scattered(blist);
+
+ for (set<Object*>::iterator i = waitfor_commit.begin();
+ i != waitfor_commit.end();
+ ++i) {
+ Object *ob = *i;
+
+ // we'll need to gather...
+ ldout(cct, 10) << "flush_all will wait for ack tid "
+ << ob->last_write_tid << " on " << *ob << dendl;
+ ob->waitfor_commit[ob->last_write_tid].push_back(gather.new_sub());
+ }
+
+ return _flush_set_finish(&gather, onfinish);
+}
+
+void ObjectCacher::purge_set(ObjectSet *oset)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ if (oset->objects.empty()) {
+ ldout(cct, 10) << "purge_set on " << oset << " dne" << dendl;
+ return;
+ }
+
+ ldout(cct, 10) << "purge_set " << oset << dendl;
+ const bool were_dirty = oset->dirty_or_tx > 0;
+
+ for (xlist<Object*>::iterator i = oset->objects.begin();
+ !i.end(); ++i) {
+ Object *ob = *i;
+ purge(ob);
+ }
+
+ // Although we have purged rather than flushed, caller should still
+ // drop any resources associate with dirty data.
+ ceph_assert(oset->dirty_or_tx == 0);
+ if (flush_set_callback && were_dirty) {
+ flush_set_callback(flush_set_callback_arg, oset);
+ }
+}
+
+
+loff_t ObjectCacher::release(Object *ob)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ list<BufferHead*> clean;
+ loff_t o_unclean = 0;
+
+ for (map<loff_t,BufferHead*>::iterator p = ob->data.begin();
+ p != ob->data.end();
+ ++p) {
+ BufferHead *bh = p->second;
+ if (bh->is_clean() || bh->is_zero() || bh->is_error())
+ clean.push_back(bh);
+ else
+ o_unclean += bh->length();
+ }
+
+ for (list<BufferHead*>::iterator p = clean.begin();
+ p != clean.end();
+ ++p) {
+ bh_remove(ob, *p);
+ delete *p;
+ }
+
+ if (ob->can_close()) {
+ ldout(cct, 10) << "release trimming " << *ob << dendl;
+ close_object(ob);
+ ceph_assert(o_unclean == 0);
+ return 0;
+ }
+
+ if (ob->complete) {
+ ldout(cct, 10) << "release clearing complete on " << *ob << dendl;
+ ob->complete = false;
+ }
+ if (!ob->exists) {
+ ldout(cct, 10) << "release setting exists on " << *ob << dendl;
+ ob->exists = true;
+ }
+
+ return o_unclean;
+}
+
+loff_t ObjectCacher::release_set(ObjectSet *oset)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ // return # bytes not clean (and thus not released).
+ loff_t unclean = 0;
+
+ if (oset->objects.empty()) {
+ ldout(cct, 10) << "release_set on " << oset << " dne" << dendl;
+ return 0;
+ }
+
+ ldout(cct, 10) << "release_set " << oset << dendl;
+
+ xlist<Object*>::iterator q;
+ for (xlist<Object*>::iterator p = oset->objects.begin();
+ !p.end(); ) {
+ q = p;
+ ++q;
+ Object *ob = *p;
+
+ loff_t o_unclean = release(ob);
+ unclean += o_unclean;
+
+ if (o_unclean)
+ ldout(cct, 10) << "release_set " << oset << " " << *ob
+ << " has " << o_unclean << " bytes left"
+ << dendl;
+ p = q;
+ }
+
+ if (unclean) {
+ ldout(cct, 10) << "release_set " << oset
+ << ", " << unclean << " bytes left" << dendl;
+ }
+
+ return unclean;
+}
+
+
+uint64_t ObjectCacher::release_all()
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ ldout(cct, 10) << "release_all" << dendl;
+ uint64_t unclean = 0;
+
+ vector<ceph::unordered_map<sobject_t, Object*> >::iterator i
+ = objects.begin();
+ while (i != objects.end()) {
+ ceph::unordered_map<sobject_t, Object*>::iterator p = i->begin();
+ while (p != i->end()) {
+ ceph::unordered_map<sobject_t, Object*>::iterator n = p;
+ ++n;
+
+ Object *ob = p->second;
+
+ loff_t o_unclean = release(ob);
+ unclean += o_unclean;
+
+ if (o_unclean)
+ ldout(cct, 10) << "release_all " << *ob
+ << " has " << o_unclean << " bytes left"
+ << dendl;
+ p = n;
+ }
+ ++i;
+ }
+
+ if (unclean) {
+ ldout(cct, 10) << "release_all unclean " << unclean << " bytes left"
+ << dendl;
+ }
+
+ return unclean;
+}
+
+void ObjectCacher::clear_nonexistence(ObjectSet *oset)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ ldout(cct, 10) << "clear_nonexistence() " << oset << dendl;
+
+ for (xlist<Object*>::iterator p = oset->objects.begin();
+ !p.end(); ++p) {
+ Object *ob = *p;
+ if (!ob->exists) {
+ ldout(cct, 10) << " setting exists and complete on " << *ob << dendl;
+ ob->exists = true;
+ ob->complete = false;
+ }
+ for (xlist<C_ReadFinish*>::iterator q = ob->reads.begin();
+ !q.end(); ++q) {
+ C_ReadFinish *comp = *q;
+ comp->distrust_enoent();
+ }
+ }
+}
+
+/**
+ * discard object extents from an ObjectSet by removing the objects in
+ * exls from the in-memory oset.
+ */
+void ObjectCacher::discard_set(ObjectSet *oset, const vector<ObjectExtent>& exls)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ bool was_dirty = oset->dirty_or_tx > 0;
+
+ _discard(oset, exls, nullptr);
+ _discard_finish(oset, was_dirty, nullptr);
+}
+
+/**
+ * discard object extents from an ObjectSet by removing the objects in
+ * exls from the in-memory oset. If the bh is in TX state, the discard
+ * will wait for the write to commit prior to invoking on_finish.
+ */
+void ObjectCacher::discard_writeback(ObjectSet *oset,
+ const vector<ObjectExtent>& exls,
+ Context* on_finish)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ bool was_dirty = oset->dirty_or_tx > 0;
+
+ C_GatherBuilder gather(cct);
+ _discard(oset, exls, &gather);
+
+ if (gather.has_subs()) {
+ bool flushed = was_dirty && oset->dirty_or_tx == 0;
+ gather.set_finisher(new LambdaContext(
+ [this, oset, flushed, on_finish](int) {
+ ceph_assert(ceph_mutex_is_locked(lock));
+ if (flushed && flush_set_callback)
+ flush_set_callback(flush_set_callback_arg, oset);
+ if (on_finish)
+ on_finish->complete(0);
+ }));
+ gather.activate();
+ return;
+ }
+
+ _discard_finish(oset, was_dirty, on_finish);
+}
+
+void ObjectCacher::_discard(ObjectSet *oset, const vector<ObjectExtent>& exls,
+ C_GatherBuilder* gather)
+{
+ if (oset->objects.empty()) {
+ ldout(cct, 10) << __func__ << " on " << oset << " dne" << dendl;
+ return;
+ }
+
+ ldout(cct, 10) << __func__ << " " << oset << dendl;
+
+ for (auto& ex : exls) {
+ ldout(cct, 10) << __func__ << " " << oset << " ex " << ex << dendl;
+ sobject_t soid(ex.oid, CEPH_NOSNAP);
+ if (objects[oset->poolid].count(soid) == 0)
+ continue;
+ Object *ob = objects[oset->poolid][soid];
+
+ ob->discard(ex.offset, ex.length, gather);
+ }
+}
+
+void ObjectCacher::_discard_finish(ObjectSet *oset, bool was_dirty,
+ Context* on_finish)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+
+ // did we truncate off dirty data?
+ if (flush_set_callback && was_dirty && oset->dirty_or_tx == 0) {
+ flush_set_callback(flush_set_callback_arg, oset);
+ }
+
+ // notify that in-flight writeback has completed
+ if (on_finish != nullptr) {
+ on_finish->complete(0);
+ }
+}
+
+void ObjectCacher::verify_stats() const
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ ldout(cct, 10) << "verify_stats" << dendl;
+
+ loff_t clean = 0, zero = 0, dirty = 0, rx = 0, tx = 0, missing = 0,
+ error = 0;
+ for (vector<ceph::unordered_map<sobject_t, Object*> >::const_iterator i
+ = objects.begin();
+ i != objects.end();
+ ++i) {
+ for (ceph::unordered_map<sobject_t, Object*>::const_iterator p
+ = i->begin();
+ p != i->end();
+ ++p) {
+ Object *ob = p->second;
+ for (map<loff_t, BufferHead*>::const_iterator q = ob->data.begin();
+ q != ob->data.end();
+ ++q) {
+ BufferHead *bh = q->second;
+ switch (bh->get_state()) {
+ case BufferHead::STATE_MISSING:
+ missing += bh->length();
+ break;
+ case BufferHead::STATE_CLEAN:
+ clean += bh->length();
+ break;
+ case BufferHead::STATE_ZERO:
+ zero += bh->length();
+ break;
+ case BufferHead::STATE_DIRTY:
+ dirty += bh->length();
+ break;
+ case BufferHead::STATE_TX:
+ tx += bh->length();
+ break;
+ case BufferHead::STATE_RX:
+ rx += bh->length();
+ break;
+ case BufferHead::STATE_ERROR:
+ error += bh->length();
+ break;
+ default:
+ ceph_abort();
+ }
+ }
+ }
+ }
+
+ ldout(cct, 10) << " clean " << clean << " rx " << rx << " tx " << tx
+ << " dirty " << dirty << " missing " << missing
+ << " error " << error << dendl;
+ ceph_assert(clean == stat_clean);
+ ceph_assert(rx == stat_rx);
+ ceph_assert(tx == stat_tx);
+ ceph_assert(dirty == stat_dirty);
+ ceph_assert(missing == stat_missing);
+ ceph_assert(zero == stat_zero);
+ ceph_assert(error == stat_error);
+}
+
+void ObjectCacher::bh_stat_add(BufferHead *bh)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ switch (bh->get_state()) {
+ case BufferHead::STATE_MISSING:
+ stat_missing += bh->length();
+ break;
+ case BufferHead::STATE_CLEAN:
+ stat_clean += bh->length();
+ break;
+ case BufferHead::STATE_ZERO:
+ stat_zero += bh->length();
+ break;
+ case BufferHead::STATE_DIRTY:
+ stat_dirty += bh->length();
+ bh->ob->dirty_or_tx += bh->length();
+ bh->ob->oset->dirty_or_tx += bh->length();
+ break;
+ case BufferHead::STATE_TX:
+ stat_tx += bh->length();
+ bh->ob->dirty_or_tx += bh->length();
+ bh->ob->oset->dirty_or_tx += bh->length();
+ break;
+ case BufferHead::STATE_RX:
+ stat_rx += bh->length();
+ break;
+ case BufferHead::STATE_ERROR:
+ stat_error += bh->length();
+ break;
+ default:
+ ceph_abort_msg("bh_stat_add: invalid bufferhead state");
+ }
+ if (get_stat_dirty_waiting() > 0)
+ stat_cond.notify_all();
+}
+
+void ObjectCacher::bh_stat_sub(BufferHead *bh)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ switch (bh->get_state()) {
+ case BufferHead::STATE_MISSING:
+ stat_missing -= bh->length();
+ break;
+ case BufferHead::STATE_CLEAN:
+ stat_clean -= bh->length();
+ break;
+ case BufferHead::STATE_ZERO:
+ stat_zero -= bh->length();
+ break;
+ case BufferHead::STATE_DIRTY:
+ stat_dirty -= bh->length();
+ bh->ob->dirty_or_tx -= bh->length();
+ bh->ob->oset->dirty_or_tx -= bh->length();
+ break;
+ case BufferHead::STATE_TX:
+ stat_tx -= bh->length();
+ bh->ob->dirty_or_tx -= bh->length();
+ bh->ob->oset->dirty_or_tx -= bh->length();
+ break;
+ case BufferHead::STATE_RX:
+ stat_rx -= bh->length();
+ break;
+ case BufferHead::STATE_ERROR:
+ stat_error -= bh->length();
+ break;
+ default:
+ ceph_abort_msg("bh_stat_sub: invalid bufferhead state");
+ }
+}
+
+void ObjectCacher::bh_set_state(BufferHead *bh, int s)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ int state = bh->get_state();
+ // move between lru lists?
+ if (s == BufferHead::STATE_DIRTY && state != BufferHead::STATE_DIRTY) {
+ bh_lru_rest.lru_remove(bh);
+ bh_lru_dirty.lru_insert_top(bh);
+ } else if (s != BufferHead::STATE_DIRTY &&state == BufferHead::STATE_DIRTY) {
+ bh_lru_dirty.lru_remove(bh);
+ if (bh->get_dontneed())
+ bh_lru_rest.lru_insert_bot(bh);
+ else
+ bh_lru_rest.lru_insert_top(bh);
+ }
+
+ if ((s == BufferHead::STATE_TX ||
+ s == BufferHead::STATE_DIRTY) &&
+ state != BufferHead::STATE_TX &&
+ state != BufferHead::STATE_DIRTY) {
+ dirty_or_tx_bh.insert(bh);
+ } else if ((state == BufferHead::STATE_TX ||
+ state == BufferHead::STATE_DIRTY) &&
+ s != BufferHead::STATE_TX &&
+ s != BufferHead::STATE_DIRTY) {
+ dirty_or_tx_bh.erase(bh);
+ }
+
+ if (s != BufferHead::STATE_ERROR &&
+ state == BufferHead::STATE_ERROR) {
+ bh->error = 0;
+ }
+
+ // set state
+ bh_stat_sub(bh);
+ bh->set_state(s);
+ bh_stat_add(bh);
+}
+
+void ObjectCacher::bh_add(Object *ob, BufferHead *bh)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ ldout(cct, 30) << "bh_add " << *ob << " " << *bh << dendl;
+ ob->add_bh(bh);
+ if (bh->is_dirty()) {
+ bh_lru_dirty.lru_insert_top(bh);
+ dirty_or_tx_bh.insert(bh);
+ } else {
+ if (bh->get_dontneed())
+ bh_lru_rest.lru_insert_bot(bh);
+ else
+ bh_lru_rest.lru_insert_top(bh);
+ }
+
+ if (bh->is_tx()) {
+ dirty_or_tx_bh.insert(bh);
+ }
+ bh_stat_add(bh);
+}
+
+void ObjectCacher::bh_remove(Object *ob, BufferHead *bh)
+{
+ ceph_assert(ceph_mutex_is_locked(lock));
+ ceph_assert(bh->get_journal_tid() == 0);
+ ldout(cct, 30) << "bh_remove " << *ob << " " << *bh << dendl;
+ ob->remove_bh(bh);
+ if (bh->is_dirty()) {
+ bh_lru_dirty.lru_remove(bh);
+ dirty_or_tx_bh.erase(bh);
+ } else {
+ bh_lru_rest.lru_remove(bh);
+ }
+
+ if (bh->is_tx()) {
+ dirty_or_tx_bh.erase(bh);
+ }
+ bh_stat_sub(bh);
+ if (get_stat_dirty_waiting() > 0)
+ stat_cond.notify_all();
+}
+
diff --git a/src/osdc/ObjectCacher.h b/src/osdc/ObjectCacher.h
new file mode 100644
index 000000000..2101692e1
--- /dev/null
+++ b/src/osdc/ObjectCacher.h
@@ -0,0 +1,781 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+#ifndef CEPH_OBJECTCACHER_H
+#define CEPH_OBJECTCACHER_H
+
+#include "include/types.h"
+#include "include/lru.h"
+#include "include/Context.h"
+#include "include/xlist.h"
+#include "include/common_fwd.h"
+
+#include "common/Cond.h"
+#include "common/Finisher.h"
+#include "common/Thread.h"
+#include "common/zipkin_trace.h"
+
+#include "Objecter.h"
+#include "Striper.h"
+
+class WritebackHandler;
+
+enum {
+ l_objectcacher_first = 25000,
+
+ l_objectcacher_cache_ops_hit, // ops we satisfy completely from cache
+ l_objectcacher_cache_ops_miss, // ops we don't satisfy completely from cache
+
+ l_objectcacher_cache_bytes_hit, // bytes read directly from cache
+
+ l_objectcacher_cache_bytes_miss, // bytes we couldn't read directly
+
+ // from cache
+
+ l_objectcacher_data_read, // total bytes read out
+ l_objectcacher_data_written, // bytes written to cache
+ l_objectcacher_data_flushed, // bytes flushed to WritebackHandler
+ l_objectcacher_overwritten_in_flush, // bytes overwritten while
+ // flushing is in progress
+
+ l_objectcacher_write_ops_blocked, // total write ops we delayed due
+ // to dirty limits
+ l_objectcacher_write_bytes_blocked, // total number of write bytes
+ // we delayed due to dirty
+ // limits
+ l_objectcacher_write_time_blocked, // total time in seconds spent
+ // blocking a write due to dirty
+ // limits
+
+ l_objectcacher_last,
+};
+
+class ObjectCacher {
+ PerfCounters *perfcounter;
+ public:
+ CephContext *cct;
+ class Object;
+ struct ObjectSet;
+ class C_ReadFinish;
+
+ typedef void (*flush_set_callback_t) (void *p, ObjectSet *oset);
+
+ // read scatter/gather
+ struct OSDRead {
+ std::vector<ObjectExtent> extents;
+ snapid_t snap;
+ ceph::buffer::list *bl;
+ int fadvise_flags;
+ OSDRead(snapid_t s, ceph::buffer::list *b, int f)
+ : snap(s), bl(b), fadvise_flags(f) {}
+ };
+
+ OSDRead *prepare_read(snapid_t snap, ceph::buffer::list *b, int f) const {
+ return new OSDRead(snap, b, f);
+ }
+
+ // write scatter/gather
+ struct OSDWrite {
+ std::vector<ObjectExtent> extents;
+ SnapContext snapc;
+ ceph::buffer::list bl;
+ ceph::real_time mtime;
+ int fadvise_flags;
+ ceph_tid_t journal_tid;
+ OSDWrite(const SnapContext& sc, const ceph::buffer::list& b, ceph::real_time mt,
+ int f, ceph_tid_t _journal_tid)
+ : snapc(sc), bl(b), mtime(mt), fadvise_flags(f),
+ journal_tid(_journal_tid) {}
+ };
+
+ OSDWrite *prepare_write(const SnapContext& sc,
+ const ceph::buffer::list &b,
+ ceph::real_time mt,
+ int f,
+ ceph_tid_t journal_tid) const {
+ return new OSDWrite(sc, b, mt, f, journal_tid);
+ }
+
+
+
+ // ******* BufferHead *********
+ class BufferHead : public LRUObject {
+ public:
+ // states
+ static const int STATE_MISSING = 0;
+ static const int STATE_CLEAN = 1;
+ static const int STATE_ZERO = 2; // NOTE: these are *clean* zeros
+ static const int STATE_DIRTY = 3;
+ static const int STATE_RX = 4;
+ static const int STATE_TX = 5;
+ static const int STATE_ERROR = 6; // a read error occurred
+
+ private:
+ // my fields
+ int state;
+ int ref;
+ struct {
+ loff_t start, length; // bh extent in object
+ } ex;
+ bool dontneed; //indicate bh don't need by anyone
+ bool nocache; //indicate bh don't need by this caller
+
+ public:
+ Object *ob;
+ ceph::buffer::list bl;
+ ceph_tid_t last_write_tid; // version of bh (if non-zero)
+ ceph_tid_t last_read_tid; // tid of last read op (if any)
+ ceph::real_time last_write;
+ SnapContext snapc;
+ ceph_tid_t journal_tid;
+ int error; // holds return value for failed reads
+
+ std::map<loff_t, std::list<Context*> > waitfor_read;
+
+ // cons
+ explicit BufferHead(Object *o) :
+ state(STATE_MISSING),
+ ref(0),
+ dontneed(false),
+ nocache(false),
+ ob(o),
+ last_write_tid(0),
+ last_read_tid(0),
+ journal_tid(0),
+ error(0) {
+ ex.start = ex.length = 0;
+ }
+
+ // extent
+ loff_t start() const { return ex.start; }
+ void set_start(loff_t s) { ex.start = s; }
+ loff_t length() const { return ex.length; }
+ void set_length(loff_t l) { ex.length = l; }
+ loff_t end() const { return ex.start + ex.length; }
+ loff_t last() const { return end() - 1; }
+
+ // states
+ void set_state(int s) {
+ if (s == STATE_RX || s == STATE_TX) get();
+ if (state == STATE_RX || state == STATE_TX) put();
+ state = s;
+ }
+ int get_state() const { return state; }
+
+ inline int get_error() const {
+ return error;
+ }
+ inline void set_error(int _error) {
+ error = _error;
+ }
+
+ inline ceph_tid_t get_journal_tid() const {
+ return journal_tid;
+ }
+ inline void set_journal_tid(ceph_tid_t _journal_tid) {
+ journal_tid = _journal_tid;
+ }
+
+ bool is_missing() const { return state == STATE_MISSING; }
+ bool is_dirty() const { return state == STATE_DIRTY; }
+ bool is_clean() const { return state == STATE_CLEAN; }
+ bool is_zero() const { return state == STATE_ZERO; }
+ bool is_tx() const { return state == STATE_TX; }
+ bool is_rx() const { return state == STATE_RX; }
+ bool is_error() const { return state == STATE_ERROR; }
+
+ // reference counting
+ int get() {
+ ceph_assert(ref >= 0);
+ if (ref == 0) lru_pin();
+ return ++ref;
+ }
+ int put() {
+ ceph_assert(ref > 0);
+ if (ref == 1) lru_unpin();
+ --ref;
+ return ref;
+ }
+
+ void set_dontneed(bool v) {
+ dontneed = v;
+ }
+ bool get_dontneed() const {
+ return dontneed;
+ }
+
+ void set_nocache(bool v) {
+ nocache = v;
+ }
+ bool get_nocache() const {
+ return nocache;
+ }
+
+ inline bool can_merge_journal(BufferHead *bh) const {
+ return (get_journal_tid() == bh->get_journal_tid());
+ }
+
+ struct ptr_lt {
+ bool operator()(const BufferHead* l, const BufferHead* r) const {
+ const Object *lob = l->ob;
+ const Object *rob = r->ob;
+ const ObjectSet *loset = lob->oset;
+ const ObjectSet *roset = rob->oset;
+ if (loset != roset)
+ return loset < roset;
+ if (lob != rob)
+ return lob < rob;
+ if (l->start() != r->start())
+ return l->start() < r->start();
+ return l < r;
+ }
+ };
+ };
+
+ // ******* Object *********
+ class Object : public LRUObject {
+ private:
+ // ObjectCacher::Object fields
+ int ref;
+ ObjectCacher *oc;
+ sobject_t oid;
+ friend struct ObjectSet;
+
+ public:
+ uint64_t object_no;
+ ObjectSet *oset;
+ xlist<Object*>::item set_item;
+ object_locator_t oloc;
+ uint64_t truncate_size, truncate_seq;
+
+ bool complete;
+ bool exists;
+
+ std::map<loff_t, BufferHead*> data;
+
+ ceph_tid_t last_write_tid; // version of bh (if non-zero)
+ ceph_tid_t last_commit_tid; // last update committed.
+
+ int dirty_or_tx;
+
+ std::map< ceph_tid_t, std::list<Context*> > waitfor_commit;
+ xlist<C_ReadFinish*> reads;
+
+ Object(const Object&) = delete;
+ Object& operator=(const Object&) = delete;
+
+ Object(ObjectCacher *_oc, sobject_t o, uint64_t ono, ObjectSet *os,
+ object_locator_t& l, uint64_t ts, uint64_t tq) :
+ ref(0),
+ oc(_oc),
+ oid(o), object_no(ono), oset(os), set_item(this), oloc(l),
+ truncate_size(ts), truncate_seq(tq),
+ complete(false), exists(true),
+ last_write_tid(0), last_commit_tid(0),
+ dirty_or_tx(0) {
+ // add to set
+ os->objects.push_back(&set_item);
+ }
+ ~Object() {
+ reads.clear();
+ ceph_assert(ref == 0);
+ ceph_assert(data.empty());
+ ceph_assert(dirty_or_tx == 0);
+ set_item.remove_myself();
+ }
+
+ sobject_t get_soid() const { return oid; }
+ object_t get_oid() { return oid.oid; }
+ snapid_t get_snap() { return oid.snap; }
+ ObjectSet *get_object_set() const { return oset; }
+ std::string get_namespace() { return oloc.nspace; }
+ uint64_t get_object_number() const { return object_no; }
+
+ const object_locator_t& get_oloc() const { return oloc; }
+ void set_object_locator(object_locator_t& l) { oloc = l; }
+
+ bool can_close() const {
+ if (lru_is_expireable()) {
+ ceph_assert(data.empty());
+ ceph_assert(waitfor_commit.empty());
+ return true;
+ }
+ return false;
+ }
+
+ /**
+ * Check buffers and waiters for consistency
+ * - no overlapping buffers
+ * - index in map matches BH
+ * - waiters fall within BH
+ */
+ void audit_buffers();
+
+ /**
+ * find first buffer that includes or follows an offset
+ *
+ * @param offset object byte offset
+ * @return iterator pointing to buffer, or data.end()
+ */
+ std::map<loff_t,BufferHead*>::const_iterator data_lower_bound(loff_t offset) const {
+ auto p = data.lower_bound(offset);
+ if (p != data.begin() &&
+ (p == data.end() || p->first > offset)) {
+ --p; // might overlap!
+ if (p->first + p->second->length() <= offset)
+ ++p; // doesn't overlap.
+ }
+ return p;
+ }
+
+ // bh
+ // add to my map
+ void add_bh(BufferHead *bh) {
+ if (data.empty())
+ get();
+ ceph_assert(data.count(bh->start()) == 0);
+ data[bh->start()] = bh;
+ }
+ void remove_bh(BufferHead *bh) {
+ ceph_assert(data.count(bh->start()));
+ data.erase(bh->start());
+ if (data.empty())
+ put();
+ }
+
+ bool is_empty() const { return data.empty(); }
+
+ // mid-level
+ BufferHead *split(BufferHead *bh, loff_t off);
+ void merge_left(BufferHead *left, BufferHead *right);
+ bool can_merge_bh(BufferHead *left, BufferHead *right);
+ void try_merge_bh(BufferHead *bh);
+ void maybe_rebuild_buffer(BufferHead *bh);
+
+ bool is_cached(loff_t off, loff_t len) const;
+ bool include_all_cached_data(loff_t off, loff_t len);
+ int map_read(ObjectExtent &ex,
+ std::map<loff_t, BufferHead*>& hits,
+ std::map<loff_t, BufferHead*>& missing,
+ std::map<loff_t, BufferHead*>& rx,
+ std::map<loff_t, BufferHead*>& errors);
+ BufferHead *map_write(ObjectExtent &ex, ceph_tid_t tid);
+
+ void replace_journal_tid(BufferHead *bh, ceph_tid_t tid);
+ void truncate(loff_t s);
+ void discard(loff_t off, loff_t len, C_GatherBuilder* commit_gather);
+
+ // reference counting
+ int get() {
+ ceph_assert(ref >= 0);
+ if (ref == 0) lru_pin();
+ return ++ref;
+ }
+ int put() {
+ ceph_assert(ref > 0);
+ if (ref == 1) lru_unpin();
+ --ref;
+ return ref;
+ }
+ };
+
+
+ struct ObjectSet {
+ void *parent;
+
+ inodeno_t ino;
+ uint64_t truncate_seq, truncate_size;
+
+ int64_t poolid;
+ xlist<Object*> objects;
+
+ int dirty_or_tx;
+ bool return_enoent;
+
+ ObjectSet(void *p, int64_t _poolid, inodeno_t i)
+ : parent(p), ino(i), truncate_seq(0),
+ truncate_size(0), poolid(_poolid), dirty_or_tx(0),
+ return_enoent(false) {}
+
+ };
+
+
+ // ******* ObjectCacher *********
+ // ObjectCacher fields
+ private:
+ WritebackHandler& writeback_handler;
+ bool scattered_write;
+
+ std::string name;
+ ceph::mutex& lock;
+
+ uint64_t max_dirty, target_dirty, max_size, max_objects;
+ ceph::timespan max_dirty_age;
+ bool block_writes_upfront;
+
+ ZTracer::Endpoint trace_endpoint;
+
+ flush_set_callback_t flush_set_callback;
+ void *flush_set_callback_arg;
+
+ // indexed by pool_id
+ std::vector<ceph::unordered_map<sobject_t, Object*> > objects;
+
+ std::list<Context*> waitfor_read;
+
+ ceph_tid_t last_read_tid;
+
+ std::set<BufferHead*, BufferHead::ptr_lt> dirty_or_tx_bh;
+ LRU bh_lru_dirty, bh_lru_rest;
+ LRU ob_lru;
+
+ ceph::condition_variable flusher_cond;
+ bool flusher_stop;
+ void flusher_entry();
+ class FlusherThread : public Thread {
+ ObjectCacher *oc;
+ public:
+ explicit FlusherThread(ObjectCacher *o) : oc(o) {}
+ void *entry() override {
+ oc->flusher_entry();
+ return 0;
+ }
+ } flusher_thread;
+
+ Finisher finisher;
+
+ // objects
+ Object *get_object_maybe(sobject_t oid, object_locator_t &l) {
+ // have it?
+ if (((uint32_t)l.pool < objects.size()) &&
+ (objects[l.pool].count(oid)))
+ return objects[l.pool][oid];
+ return NULL;
+ }
+
+ Object *get_object(sobject_t oid, uint64_t object_no, ObjectSet *oset,
+ object_locator_t &l, uint64_t truncate_size,
+ uint64_t truncate_seq);
+ void close_object(Object *ob);
+
+ // bh stats
+ ceph::condition_variable stat_cond;
+
+ loff_t stat_clean;
+ loff_t stat_zero;
+ loff_t stat_dirty;
+ loff_t stat_rx;
+ loff_t stat_tx;
+ loff_t stat_missing;
+ loff_t stat_error;
+ loff_t stat_dirty_waiting; // bytes that writers are waiting on to write
+
+ size_t stat_nr_dirty_waiters;
+
+ void verify_stats() const;
+
+ void bh_stat_add(BufferHead *bh);
+ void bh_stat_sub(BufferHead *bh);
+ loff_t get_stat_tx() const { return stat_tx; }
+ loff_t get_stat_rx() const { return stat_rx; }
+ loff_t get_stat_dirty() const { return stat_dirty; }
+ loff_t get_stat_clean() const { return stat_clean; }
+ loff_t get_stat_zero() const { return stat_zero; }
+ loff_t get_stat_dirty_waiting() const { return stat_dirty_waiting; }
+ size_t get_stat_nr_dirty_waiters() const { return stat_nr_dirty_waiters; }
+
+ void touch_bh(BufferHead *bh) {
+ if (bh->is_dirty())
+ bh_lru_dirty.lru_touch(bh);
+ else
+ bh_lru_rest.lru_touch(bh);
+
+ bh->set_dontneed(false);
+ bh->set_nocache(false);
+ touch_ob(bh->ob);
+ }
+ void touch_ob(Object *ob) {
+ ob_lru.lru_touch(ob);
+ }
+ void bottouch_ob(Object *ob) {
+ ob_lru.lru_bottouch(ob);
+ }
+
+ // bh states
+ void bh_set_state(BufferHead *bh, int s);
+ void copy_bh_state(BufferHead *bh1, BufferHead *bh2) {
+ bh_set_state(bh2, bh1->get_state());
+ }
+
+ void mark_missing(BufferHead *bh) {
+ bh_set_state(bh,BufferHead::STATE_MISSING);
+ }
+ void mark_clean(BufferHead *bh) {
+ bh_set_state(bh, BufferHead::STATE_CLEAN);
+ }
+ void mark_zero(BufferHead *bh) {
+ bh_set_state(bh, BufferHead::STATE_ZERO);
+ }
+ void mark_rx(BufferHead *bh) {
+ bh_set_state(bh, BufferHead::STATE_RX);
+ }
+ void mark_tx(BufferHead *bh) {
+ bh_set_state(bh, BufferHead::STATE_TX); }
+ void mark_error(BufferHead *bh) {
+ bh_set_state(bh, BufferHead::STATE_ERROR);
+ }
+ void mark_dirty(BufferHead *bh) {
+ bh_set_state(bh, BufferHead::STATE_DIRTY);
+ bh_lru_dirty.lru_touch(bh);
+ //bh->set_dirty_stamp(ceph_clock_now());
+ }
+
+ void bh_add(Object *ob, BufferHead *bh);
+ void bh_remove(Object *ob, BufferHead *bh);
+
+ // io
+ void bh_read(BufferHead *bh, int op_flags,
+ const ZTracer::Trace &parent_trace);
+ void bh_write(BufferHead *bh, const ZTracer::Trace &parent_trace);
+ void bh_write_scattered(std::list<BufferHead*>& blist);
+ void bh_write_adjacencies(BufferHead *bh, ceph::real_time cutoff,
+ int64_t *amount, int *max_count);
+
+ void trim();
+ void flush(ZTracer::Trace *trace, loff_t amount=0);
+
+ /**
+ * flush a range of buffers
+ *
+ * Flush any buffers that intersect the specified extent. If len==0,
+ * flush *all* buffers for the object.
+ *
+ * @param o object
+ * @param off start offset
+ * @param len extent length, or 0 for entire object
+ * @return true if object was already clean/flushed.
+ */
+ bool flush(Object *o, loff_t off, loff_t len,
+ ZTracer::Trace *trace);
+ loff_t release(Object *o);
+ void purge(Object *o);
+
+ int64_t reads_outstanding;
+ ceph::condition_variable read_cond;
+
+ int _readx(OSDRead *rd, ObjectSet *oset, Context *onfinish,
+ bool external_call, ZTracer::Trace *trace);
+ void retry_waiting_reads();
+
+ public:
+ void bh_read_finish(int64_t poolid, sobject_t oid, ceph_tid_t tid,
+ loff_t offset, uint64_t length,
+ ceph::buffer::list &bl, int r,
+ bool trust_enoent);
+ void bh_write_commit(int64_t poolid, sobject_t oid,
+ std::vector<std::pair<loff_t, uint64_t> >& ranges,
+ ceph_tid_t t, int r);
+
+ class C_WriteCommit;
+ class C_WaitForWrite;
+
+ void perf_start();
+ void perf_stop();
+
+
+
+ ObjectCacher(CephContext *cct_, std::string name, WritebackHandler& wb, ceph::mutex& l,
+ flush_set_callback_t flush_callback,
+ void *flush_callback_arg,
+ uint64_t max_bytes, uint64_t max_objects,
+ uint64_t max_dirty, uint64_t target_dirty, double max_age,
+ bool block_writes_upfront);
+ ~ObjectCacher();
+
+ void start() {
+ flusher_thread.create("flusher");
+ }
+ void stop() {
+ ceph_assert(flusher_thread.is_started());
+ lock.lock(); // hmm.. watch out for deadlock!
+ flusher_stop = true;
+ flusher_cond.notify_all();
+ lock.unlock();
+ flusher_thread.join();
+ }
+
+
+ class C_RetryRead;
+
+
+ // non-blocking. async.
+
+ /**
+ * @note total read size must be <= INT_MAX, since
+ * the return value is total bytes read
+ */
+ int readx(OSDRead *rd, ObjectSet *oset, Context *onfinish,
+ ZTracer::Trace *parent_trace = nullptr);
+ int writex(OSDWrite *wr, ObjectSet *oset, Context *onfreespace,
+ ZTracer::Trace *parent_trace = nullptr);
+ bool is_cached(ObjectSet *oset, std::vector<ObjectExtent>& extents,
+ snapid_t snapid);
+
+private:
+ // write blocking
+ int _wait_for_write(OSDWrite *wr, uint64_t len, ObjectSet *oset,
+ ZTracer::Trace *trace, Context *onfreespace);
+ void _maybe_wait_for_writeback(uint64_t len, ZTracer::Trace *trace);
+ bool _flush_set_finish(C_GatherBuilder *gather, Context *onfinish);
+
+ void _discard(ObjectSet *oset, const std::vector<ObjectExtent>& exls,
+ C_GatherBuilder* gather);
+ void _discard_finish(ObjectSet *oset, bool was_dirty, Context* on_finish);
+
+public:
+ bool set_is_empty(ObjectSet *oset);
+ bool set_is_cached(ObjectSet *oset);
+ bool set_is_dirty_or_committing(ObjectSet *oset);
+
+ bool flush_set(ObjectSet *oset, Context *onfinish=0);
+ bool flush_set(ObjectSet *oset, std::vector<ObjectExtent>& ex,
+ ZTracer::Trace *trace, Context *onfinish = 0);
+ bool flush_all(Context *onfinish = 0);
+
+ void purge_set(ObjectSet *oset);
+
+ // returns # of bytes not released (ie non-clean)
+ loff_t release_set(ObjectSet *oset);
+ uint64_t release_all();
+
+ void discard_set(ObjectSet *oset, const std::vector<ObjectExtent>& ex);
+ void discard_writeback(ObjectSet *oset, const std::vector<ObjectExtent>& ex,
+ Context* on_finish);
+
+ /**
+ * Retry any in-flight reads that get -ENOENT instead of marking
+ * them zero, and get rid of any cached -ENOENTs.
+ * After this is called and the cache's lock is unlocked,
+ * any new requests will treat -ENOENT normally.
+ */
+ void clear_nonexistence(ObjectSet *oset);
+
+
+ // cache sizes
+ void set_max_dirty(uint64_t v) {
+ max_dirty = v;
+ }
+ void set_target_dirty(int64_t v) {
+ target_dirty = v;
+ }
+ void set_max_size(int64_t v) {
+ max_size = v;
+ }
+ void set_max_dirty_age(double a) {
+ max_dirty_age = ceph::make_timespan(a);
+ }
+ void set_max_objects(int64_t v) {
+ max_objects = v;
+ }
+
+
+ // file functions
+
+ /*** async+caching (non-blocking) file interface ***/
+ int file_is_cached(ObjectSet *oset, file_layout_t *layout,
+ snapid_t snapid, loff_t offset, uint64_t len) {
+ std::vector<ObjectExtent> extents;
+ Striper::file_to_extents(cct, oset->ino, layout, offset, len,
+ oset->truncate_size, extents);
+ return is_cached(oset, extents, snapid);
+ }
+
+ int file_read(ObjectSet *oset, file_layout_t *layout, snapid_t snapid,
+ loff_t offset, uint64_t len, ceph::buffer::list *bl, int flags,
+ Context *onfinish) {
+ OSDRead *rd = prepare_read(snapid, bl, flags);
+ Striper::file_to_extents(cct, oset->ino, layout, offset, len,
+ oset->truncate_size, rd->extents);
+ return readx(rd, oset, onfinish);
+ }
+
+ int file_write(ObjectSet *oset, file_layout_t *layout,
+ const SnapContext& snapc, loff_t offset, uint64_t len,
+ ceph::buffer::list& bl, ceph::real_time mtime, int flags) {
+ OSDWrite *wr = prepare_write(snapc, bl, mtime, flags, 0);
+ Striper::file_to_extents(cct, oset->ino, layout, offset, len,
+ oset->truncate_size, wr->extents);
+ return writex(wr, oset, nullptr);
+ }
+
+ bool file_flush(ObjectSet *oset, file_layout_t *layout,
+ const SnapContext& snapc, loff_t offset, uint64_t len,
+ Context *onfinish) {
+ std::vector<ObjectExtent> extents;
+ Striper::file_to_extents(cct, oset->ino, layout, offset, len,
+ oset->truncate_size, extents);
+ ZTracer::Trace trace;
+ return flush_set(oset, extents, &trace, onfinish);
+ }
+};
+
+
+inline std::ostream& operator<<(std::ostream &out,
+ const ObjectCacher::BufferHead &bh)
+{
+ out << "bh[ " << &bh << " "
+ << bh.start() << "~" << bh.length()
+ << " " << bh.ob
+ << " (" << bh.bl.length() << ")"
+ << " v " << bh.last_write_tid;
+ if (bh.get_journal_tid() != 0) {
+ out << " j " << bh.get_journal_tid();
+ }
+ if (bh.is_tx()) out << " tx";
+ if (bh.is_rx()) out << " rx";
+ if (bh.is_dirty()) out << " dirty";
+ if (bh.is_clean()) out << " clean";
+ if (bh.is_zero()) out << " zero";
+ if (bh.is_missing()) out << " missing";
+ if (bh.bl.length() > 0) out << " firstbyte=" << (int)bh.bl[0];
+ if (bh.error) out << " error=" << bh.error;
+ out << "]";
+ out << " waiters = {";
+ for (auto it = bh.waitfor_read.begin(); it != bh.waitfor_read.end(); ++it) {
+ out << " " << it->first << "->[";
+ for (auto lit = it->second.begin();
+ lit != it->second.end(); ++lit) {
+ out << *lit << ", ";
+ }
+ out << "]";
+ }
+ out << "}";
+ return out;
+}
+
+inline std::ostream& operator<<(std::ostream &out,
+ const ObjectCacher::ObjectSet &os)
+{
+ return out << "objectset[" << os.ino
+ << " ts " << os.truncate_seq << "/" << os.truncate_size
+ << " objects " << os.objects.size()
+ << " dirty_or_tx " << os.dirty_or_tx
+ << "]";
+}
+
+inline std::ostream& operator<<(std::ostream &out,
+ const ObjectCacher::Object &ob)
+{
+ out << "object["
+ << ob.get_soid() << " oset " << ob.oset << std::dec
+ << " wr " << ob.last_write_tid << "/" << ob.last_commit_tid;
+
+ if (ob.complete)
+ out << " COMPLETE";
+ if (!ob.exists)
+ out << " !EXISTS";
+
+ out << "]";
+ return out;
+}
+
+#endif
diff --git a/src/osdc/Objecter.cc b/src/osdc/Objecter.cc
new file mode 100644
index 000000000..f006597e8
--- /dev/null
+++ b/src/osdc/Objecter.cc
@@ -0,0 +1,5429 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+#include <algorithm>
+#include <cerrno>
+
+#include "Objecter.h"
+#include "osd/OSDMap.h"
+#include "osd/error_code.h"
+#include "Filer.h"
+
+#include "mon/MonClient.h"
+#include "mon/error_code.h"
+
+#include "msg/Messenger.h"
+#include "msg/Message.h"
+
+#include "messages/MPing.h"
+#include "messages/MOSDOp.h"
+#include "messages/MOSDOpReply.h"
+#include "messages/MOSDBackoff.h"
+#include "messages/MOSDMap.h"
+
+#include "messages/MPoolOp.h"
+#include "messages/MPoolOpReply.h"
+
+#include "messages/MGetPoolStats.h"
+#include "messages/MGetPoolStatsReply.h"
+#include "messages/MStatfs.h"
+#include "messages/MStatfsReply.h"
+
+#include "messages/MMonCommand.h"
+
+#include "messages/MCommand.h"
+#include "messages/MCommandReply.h"
+
+#include "messages/MWatchNotify.h"
+
+
+#include "common/Cond.h"
+#include "common/config.h"
+#include "common/perf_counters.h"
+#include "common/scrub_types.h"
+#include "include/str_list.h"
+#include "common/errno.h"
+#include "common/EventTrace.h"
+#include "common/async/waiter.h"
+#include "error_code.h"
+
+
+using std::list;
+using std::make_pair;
+using std::map;
+using std::ostream;
+using std::ostringstream;
+using std::pair;
+using std::set;
+using std::string;
+using std::stringstream;
+using std::vector;
+
+using ceph::decode;
+using ceph::encode;
+using ceph::Formatter;
+
+using std::defer_lock;
+using std::scoped_lock;
+using std::shared_lock;
+using std::unique_lock;
+
+using ceph::real_time;
+using ceph::real_clock;
+
+using ceph::mono_clock;
+using ceph::mono_time;
+
+using ceph::timespan;
+
+using ceph::shunique_lock;
+using ceph::acquire_shared;
+using ceph::acquire_unique;
+
+namespace bc = boost::container;
+namespace bs = boost::system;
+namespace ca = ceph::async;
+namespace cb = ceph::buffer;
+
+#define dout_subsys ceph_subsys_objecter
+#undef dout_prefix
+#define dout_prefix *_dout << messenger->get_myname() << ".objecter "
+
+
+enum {
+ l_osdc_first = 123200,
+ l_osdc_op_active,
+ l_osdc_op_laggy,
+ l_osdc_op_send,
+ l_osdc_op_send_bytes,
+ l_osdc_op_resend,
+ l_osdc_op_reply,
+ l_osdc_op_latency,
+ l_osdc_op_inflight,
+ l_osdc_oplen_avg,
+
+ l_osdc_op,
+ l_osdc_op_r,
+ l_osdc_op_w,
+ l_osdc_op_rmw,
+ l_osdc_op_pg,
+
+ l_osdc_osdop_stat,
+ l_osdc_osdop_create,
+ l_osdc_osdop_read,
+ l_osdc_osdop_write,
+ l_osdc_osdop_writefull,
+ l_osdc_osdop_writesame,
+ l_osdc_osdop_append,
+ l_osdc_osdop_zero,
+ l_osdc_osdop_truncate,
+ l_osdc_osdop_delete,
+ l_osdc_osdop_mapext,
+ l_osdc_osdop_sparse_read,
+ l_osdc_osdop_clonerange,
+ l_osdc_osdop_getxattr,
+ l_osdc_osdop_setxattr,
+ l_osdc_osdop_cmpxattr,
+ l_osdc_osdop_rmxattr,
+ l_osdc_osdop_resetxattrs,
+ l_osdc_osdop_call,
+ l_osdc_osdop_watch,
+ l_osdc_osdop_notify,
+ l_osdc_osdop_src_cmpxattr,
+ l_osdc_osdop_pgls,
+ l_osdc_osdop_pgls_filter,
+ l_osdc_osdop_other,
+
+ l_osdc_linger_active,
+ l_osdc_linger_send,
+ l_osdc_linger_resend,
+ l_osdc_linger_ping,
+
+ l_osdc_poolop_active,
+ l_osdc_poolop_send,
+ l_osdc_poolop_resend,
+
+ l_osdc_poolstat_active,
+ l_osdc_poolstat_send,
+ l_osdc_poolstat_resend,
+
+ l_osdc_statfs_active,
+ l_osdc_statfs_send,
+ l_osdc_statfs_resend,
+
+ l_osdc_command_active,
+ l_osdc_command_send,
+ l_osdc_command_resend,
+
+ l_osdc_map_epoch,
+ l_osdc_map_full,
+ l_osdc_map_inc,
+
+ l_osdc_osd_sessions,
+ l_osdc_osd_session_open,
+ l_osdc_osd_session_close,
+ l_osdc_osd_laggy,
+
+ l_osdc_osdop_omap_wr,
+ l_osdc_osdop_omap_rd,
+ l_osdc_osdop_omap_del,
+
+ l_osdc_last,
+};
+
+namespace {
+inline bs::error_code osdcode(int r) {
+ return (r < 0) ? bs::error_code(-r, osd_category()) : bs::error_code();
+}
+}
+
+// config obs ----------------------------
+
+class Objecter::RequestStateHook : public AdminSocketHook {
+ Objecter *m_objecter;
+public:
+ explicit RequestStateHook(Objecter *objecter);
+ int call(std::string_view command, const cmdmap_t& cmdmap,
+ const bufferlist&,
+ Formatter *f,
+ std::ostream& ss,
+ cb::list& out) override;
+};
+
+std::unique_lock<std::mutex> Objecter::OSDSession::get_lock(object_t& oid)
+{
+ if (oid.name.empty())
+ return {};
+
+ static constexpr uint32_t HASH_PRIME = 1021;
+ uint32_t h = ceph_str_hash_linux(oid.name.c_str(), oid.name.size())
+ % HASH_PRIME;
+
+ return {completion_locks[h % num_locks], std::defer_lock};
+}
+
+const char** Objecter::get_tracked_conf_keys() const
+{
+ static const char *config_keys[] = {
+ "crush_location",
+ "rados_mon_op_timeout",
+ "rados_osd_op_timeout",
+ NULL
+ };
+ return config_keys;
+}
+
+
+void Objecter::handle_conf_change(const ConfigProxy& conf,
+ const std::set <std::string> &changed)
+{
+ if (changed.count("crush_location")) {
+ update_crush_location();
+ }
+ if (changed.count("rados_mon_op_timeout")) {
+ mon_timeout = conf.get_val<std::chrono::seconds>("rados_mon_op_timeout");
+ }
+ if (changed.count("rados_osd_op_timeout")) {
+ osd_timeout = conf.get_val<std::chrono::seconds>("rados_osd_op_timeout");
+ }
+}
+
+void Objecter::update_crush_location()
+{
+ unique_lock wl(rwlock);
+ crush_location = cct->crush_location.get_location();
+}
+
+// messages ------------------------------
+
+/*
+ * initialize only internal data structures, don't initiate cluster interaction
+ */
+void Objecter::init()
+{
+ ceph_assert(!initialized);
+
+ if (!logger) {
+ PerfCountersBuilder pcb(cct, "objecter", l_osdc_first, l_osdc_last);
+
+ pcb.add_u64(l_osdc_op_active, "op_active", "Operations active", "actv",
+ PerfCountersBuilder::PRIO_CRITICAL);
+ pcb.add_u64(l_osdc_op_laggy, "op_laggy", "Laggy operations");
+ pcb.add_u64_counter(l_osdc_op_send, "op_send", "Sent operations");
+ pcb.add_u64_counter(l_osdc_op_send_bytes, "op_send_bytes", "Sent data", NULL, 0, unit_t(UNIT_BYTES));
+ pcb.add_u64_counter(l_osdc_op_resend, "op_resend", "Resent operations");
+ pcb.add_u64_counter(l_osdc_op_reply, "op_reply", "Operation reply");
+ pcb.add_time_avg(l_osdc_op_latency, "op_latency", "Operation latency");
+ pcb.add_u64(l_osdc_op_inflight, "op_inflight", "Operations in flight");
+ pcb.add_u64_avg(l_osdc_oplen_avg, "oplen_avg", "Average length of operation vector");
+
+ pcb.add_u64_counter(l_osdc_op, "op", "Operations");
+ pcb.add_u64_counter(l_osdc_op_r, "op_r", "Read operations", "rd",
+ PerfCountersBuilder::PRIO_CRITICAL);
+ pcb.add_u64_counter(l_osdc_op_w, "op_w", "Write operations", "wr",
+ PerfCountersBuilder::PRIO_CRITICAL);
+ pcb.add_u64_counter(l_osdc_op_rmw, "op_rmw", "Read-modify-write operations",
+ "rdwr", PerfCountersBuilder::PRIO_INTERESTING);
+ pcb.add_u64_counter(l_osdc_op_pg, "op_pg", "PG operation");
+
+ pcb.add_u64_counter(l_osdc_osdop_stat, "osdop_stat", "Stat operations");
+ pcb.add_u64_counter(l_osdc_osdop_create, "osdop_create",
+ "Create object operations");
+ pcb.add_u64_counter(l_osdc_osdop_read, "osdop_read", "Read operations");
+ pcb.add_u64_counter(l_osdc_osdop_write, "osdop_write", "Write operations");
+ pcb.add_u64_counter(l_osdc_osdop_writefull, "osdop_writefull",
+ "Write full object operations");
+ pcb.add_u64_counter(l_osdc_osdop_writesame, "osdop_writesame",
+ "Write same operations");
+ pcb.add_u64_counter(l_osdc_osdop_append, "osdop_append",
+ "Append operation");
+ pcb.add_u64_counter(l_osdc_osdop_zero, "osdop_zero",
+ "Set object to zero operations");
+ pcb.add_u64_counter(l_osdc_osdop_truncate, "osdop_truncate",
+ "Truncate object operations");
+ pcb.add_u64_counter(l_osdc_osdop_delete, "osdop_delete",
+ "Delete object operations");
+ pcb.add_u64_counter(l_osdc_osdop_mapext, "osdop_mapext",
+ "Map extent operations");
+ pcb.add_u64_counter(l_osdc_osdop_sparse_read, "osdop_sparse_read",
+ "Sparse read operations");
+ pcb.add_u64_counter(l_osdc_osdop_clonerange, "osdop_clonerange",
+ "Clone range operations");
+ pcb.add_u64_counter(l_osdc_osdop_getxattr, "osdop_getxattr",
+ "Get xattr operations");
+ pcb.add_u64_counter(l_osdc_osdop_setxattr, "osdop_setxattr",
+ "Set xattr operations");
+ pcb.add_u64_counter(l_osdc_osdop_cmpxattr, "osdop_cmpxattr",
+ "Xattr comparison operations");
+ pcb.add_u64_counter(l_osdc_osdop_rmxattr, "osdop_rmxattr",
+ "Remove xattr operations");
+ pcb.add_u64_counter(l_osdc_osdop_resetxattrs, "osdop_resetxattrs",
+ "Reset xattr operations");
+ pcb.add_u64_counter(l_osdc_osdop_call, "osdop_call",
+ "Call (execute) operations");
+ pcb.add_u64_counter(l_osdc_osdop_watch, "osdop_watch",
+ "Watch by object operations");
+ pcb.add_u64_counter(l_osdc_osdop_notify, "osdop_notify",
+ "Notify about object operations");
+ pcb.add_u64_counter(l_osdc_osdop_src_cmpxattr, "osdop_src_cmpxattr",
+ "Extended attribute comparison in multi operations");
+ pcb.add_u64_counter(l_osdc_osdop_pgls, "osdop_pgls");
+ pcb.add_u64_counter(l_osdc_osdop_pgls_filter, "osdop_pgls_filter");
+ pcb.add_u64_counter(l_osdc_osdop_other, "osdop_other", "Other operations");
+
+ pcb.add_u64(l_osdc_linger_active, "linger_active",
+ "Active lingering operations");
+ pcb.add_u64_counter(l_osdc_linger_send, "linger_send",
+ "Sent lingering operations");
+ pcb.add_u64_counter(l_osdc_linger_resend, "linger_resend",
+ "Resent lingering operations");
+ pcb.add_u64_counter(l_osdc_linger_ping, "linger_ping",
+ "Sent pings to lingering operations");
+
+ pcb.add_u64(l_osdc_poolop_active, "poolop_active",
+ "Active pool operations");
+ pcb.add_u64_counter(l_osdc_poolop_send, "poolop_send",
+ "Sent pool operations");
+ pcb.add_u64_counter(l_osdc_poolop_resend, "poolop_resend",
+ "Resent pool operations");
+
+ pcb.add_u64(l_osdc_poolstat_active, "poolstat_active",
+ "Active get pool stat operations");
+ pcb.add_u64_counter(l_osdc_poolstat_send, "poolstat_send",
+ "Pool stat operations sent");
+ pcb.add_u64_counter(l_osdc_poolstat_resend, "poolstat_resend",
+ "Resent pool stats");
+
+ pcb.add_u64(l_osdc_statfs_active, "statfs_active", "Statfs operations");
+ pcb.add_u64_counter(l_osdc_statfs_send, "statfs_send", "Sent FS stats");
+ pcb.add_u64_counter(l_osdc_statfs_resend, "statfs_resend",
+ "Resent FS stats");
+
+ pcb.add_u64(l_osdc_command_active, "command_active", "Active commands");
+ pcb.add_u64_counter(l_osdc_command_send, "command_send",
+ "Sent commands");
+ pcb.add_u64_counter(l_osdc_command_resend, "command_resend",
+ "Resent commands");
+
+ pcb.add_u64(l_osdc_map_epoch, "map_epoch", "OSD map epoch");
+ pcb.add_u64_counter(l_osdc_map_full, "map_full",
+ "Full OSD maps received");
+ pcb.add_u64_counter(l_osdc_map_inc, "map_inc",
+ "Incremental OSD maps received");
+
+ pcb.add_u64(l_osdc_osd_sessions, "osd_sessions",
+ "Open sessions"); // open sessions
+ pcb.add_u64_counter(l_osdc_osd_session_open, "osd_session_open",
+ "Sessions opened");
+ pcb.add_u64_counter(l_osdc_osd_session_close, "osd_session_close",
+ "Sessions closed");
+ pcb.add_u64(l_osdc_osd_laggy, "osd_laggy", "Laggy OSD sessions");
+
+ pcb.add_u64_counter(l_osdc_osdop_omap_wr, "omap_wr",
+ "OSD OMAP write operations");
+ pcb.add_u64_counter(l_osdc_osdop_omap_rd, "omap_rd",
+ "OSD OMAP read operations");
+ pcb.add_u64_counter(l_osdc_osdop_omap_del, "omap_del",
+ "OSD OMAP delete operations");
+
+ logger = pcb.create_perf_counters();
+ cct->get_perfcounters_collection()->add(logger);
+ }
+
+ m_request_state_hook = new RequestStateHook(this);
+ auto admin_socket = cct->get_admin_socket();
+ int ret = admin_socket->register_command("objecter_requests",
+ m_request_state_hook,
+ "show in-progress osd requests");
+
+ /* Don't warn on EEXIST, happens if multiple ceph clients
+ * are instantiated from one process */
+ if (ret < 0 && ret != -EEXIST) {
+ lderr(cct) << "error registering admin socket command: "
+ << cpp_strerror(ret) << dendl;
+ }
+
+ update_crush_location();
+
+ cct->_conf.add_observer(this);
+
+ initialized = true;
+}
+
+/*
+ * ok, cluster interaction can happen
+ */
+void Objecter::start(const OSDMap* o)
+{
+ shared_lock rl(rwlock);
+
+ start_tick();
+ if (o) {
+ osdmap->deepish_copy_from(*o);
+ prune_pg_mapping(osdmap->get_pools());
+ } else if (osdmap->get_epoch() == 0) {
+ _maybe_request_map();
+ }
+}
+
+void Objecter::shutdown()
+{
+ ceph_assert(initialized);
+
+ unique_lock wl(rwlock);
+
+ initialized = false;
+
+ wl.unlock();
+ cct->_conf.remove_observer(this);
+ wl.lock();
+
+ while (!osd_sessions.empty()) {
+ auto p = osd_sessions.begin();
+ close_session(p->second);
+ }
+
+ while(!check_latest_map_lingers.empty()) {
+ auto i = check_latest_map_lingers.begin();
+ i->second->put();
+ check_latest_map_lingers.erase(i->first);
+ }
+
+ while(!check_latest_map_ops.empty()) {
+ auto i = check_latest_map_ops.begin();
+ i->second->put();
+ check_latest_map_ops.erase(i->first);
+ }
+
+ while(!check_latest_map_commands.empty()) {
+ auto i = check_latest_map_commands.begin();
+ i->second->put();
+ check_latest_map_commands.erase(i->first);
+ }
+
+ while(!poolstat_ops.empty()) {
+ auto i = poolstat_ops.begin();
+ delete i->second;
+ poolstat_ops.erase(i->first);
+ }
+
+ while(!statfs_ops.empty()) {
+ auto i = statfs_ops.begin();
+ delete i->second;
+ statfs_ops.erase(i->first);
+ }
+
+ while(!pool_ops.empty()) {
+ auto i = pool_ops.begin();
+ delete i->second;
+ pool_ops.erase(i->first);
+ }
+
+ ldout(cct, 20) << __func__ << " clearing up homeless session..." << dendl;
+ while(!homeless_session->linger_ops.empty()) {
+ auto i = homeless_session->linger_ops.begin();
+ ldout(cct, 10) << " linger_op " << i->first << dendl;
+ LingerOp *lop = i->second;
+ {
+ std::unique_lock swl(homeless_session->lock);
+ _session_linger_op_remove(homeless_session, lop);
+ }
+ linger_ops.erase(lop->linger_id);
+ linger_ops_set.erase(lop);
+ lop->put();
+ }
+
+ while(!homeless_session->ops.empty()) {
+ auto i = homeless_session->ops.begin();
+ ldout(cct, 10) << " op " << i->first << dendl;
+ auto op = i->second;
+ {
+ std::unique_lock swl(homeless_session->lock);
+ _session_op_remove(homeless_session, op);
+ }
+ op->put();
+ }
+
+ while(!homeless_session->command_ops.empty()) {
+ auto i = homeless_session->command_ops.begin();
+ ldout(cct, 10) << " command_op " << i->first << dendl;
+ auto cop = i->second;
+ {
+ std::unique_lock swl(homeless_session->lock);
+ _session_command_op_remove(homeless_session, cop);
+ }
+ cop->put();
+ }
+
+ if (tick_event) {
+ if (timer.cancel_event(tick_event)) {
+ ldout(cct, 10) << " successfully canceled tick" << dendl;
+ }
+ tick_event = 0;
+ }
+
+ if (logger) {
+ cct->get_perfcounters_collection()->remove(logger);
+ delete logger;
+ logger = NULL;
+ }
+
+ // Let go of Objecter write lock so timer thread can shutdown
+ wl.unlock();
+
+ // Outside of lock to avoid cycle WRT calls to RequestStateHook
+ // This is safe because we guarantee no concurrent calls to
+ // shutdown() with the ::initialized check at start.
+ if (m_request_state_hook) {
+ auto admin_socket = cct->get_admin_socket();
+ admin_socket->unregister_commands(m_request_state_hook);
+ delete m_request_state_hook;
+ m_request_state_hook = NULL;
+ }
+}
+
+void Objecter::_send_linger(LingerOp *info,
+ ceph::shunique_lock<ceph::shared_mutex>& sul)
+{
+ ceph_assert(sul.owns_lock() && sul.mutex() == &rwlock);
+
+ fu2::unique_function<Op::OpSig> oncommit;
+ osdc_opvec opv;
+ std::shared_lock watchl(info->watch_lock);
+ cb::list *poutbl = nullptr;
+ if (info->registered && info->is_watch) {
+ ldout(cct, 15) << "send_linger " << info->linger_id << " reconnect"
+ << dendl;
+ opv.push_back(OSDOp());
+ opv.back().op.op = CEPH_OSD_OP_WATCH;
+ opv.back().op.watch.cookie = info->get_cookie();
+ opv.back().op.watch.op = CEPH_OSD_WATCH_OP_RECONNECT;
+ opv.back().op.watch.gen = ++info->register_gen;
+ oncommit = CB_Linger_Reconnect(this, info);
+ } else {
+ ldout(cct, 15) << "send_linger " << info->linger_id << " register"
+ << dendl;
+ opv = info->ops;
+ // TODO Augment ca::Completion with an equivalent of
+ // target so we can handle these cases better.
+ auto c = std::make_unique<CB_Linger_Commit>(this, info);
+ if (!info->is_watch) {
+ info->notify_id = 0;
+ poutbl = &c->outbl;
+ }
+ oncommit = [c = std::move(c)](bs::error_code ec) mutable {
+ std::move(*c)(ec);
+ };
+ }
+ watchl.unlock();
+ auto o = new Op(info->target.base_oid, info->target.base_oloc,
+ std::move(opv), info->target.flags | CEPH_OSD_FLAG_READ,
+ std::move(oncommit), info->pobjver);
+ o->outbl = poutbl;
+ o->snapid = info->snap;
+ o->snapc = info->snapc;
+ o->mtime = info->mtime;
+
+ o->target = info->target;
+ o->tid = ++last_tid;
+
+ // do not resend this; we will send a new op to reregister
+ o->should_resend = false;
+ o->ctx_budgeted = true;
+
+ if (info->register_tid) {
+ // repeat send. cancel old registration op, if any.
+ std::unique_lock sl(info->session->lock);
+ if (info->session->ops.count(info->register_tid)) {
+ auto o = info->session->ops[info->register_tid];
+ _op_cancel_map_check(o);
+ _cancel_linger_op(o);
+ }
+ sl.unlock();
+ }
+
+ _op_submit_with_budget(o, sul, &info->register_tid, &info->ctx_budget);
+
+ logger->inc(l_osdc_linger_send);
+}
+
+void Objecter::_linger_commit(LingerOp *info, bs::error_code ec,
+ cb::list& outbl)
+{
+ std::unique_lock wl(info->watch_lock);
+ ldout(cct, 10) << "_linger_commit " << info->linger_id << dendl;
+ if (info->on_reg_commit) {
+ info->on_reg_commit->defer(std::move(info->on_reg_commit),
+ ec, cb::list{});
+ info->on_reg_commit.reset();
+ }
+ if (ec && info->on_notify_finish) {
+ info->on_notify_finish->defer(std::move(info->on_notify_finish),
+ ec, cb::list{});
+ info->on_notify_finish.reset();
+ }
+
+ // only tell the user the first time we do this
+ info->registered = true;
+ info->pobjver = NULL;
+
+ if (!info->is_watch) {
+ // make note of the notify_id
+ auto p = outbl.cbegin();
+ try {
+ decode(info->notify_id, p);
+ ldout(cct, 10) << "_linger_commit notify_id=" << info->notify_id
+ << dendl;
+ }
+ catch (cb::error& e) {
+ }
+ }
+}
+
+class CB_DoWatchError {
+ Objecter *objecter;
+ boost::intrusive_ptr<Objecter::LingerOp> info;
+ bs::error_code ec;
+public:
+ CB_DoWatchError(Objecter *o, Objecter::LingerOp *i,
+ bs::error_code ec)
+ : objecter(o), info(i), ec(ec) {
+ info->_queued_async();
+ }
+ void operator()() {
+ std::unique_lock wl(objecter->rwlock);
+ bool canceled = info->canceled;
+ wl.unlock();
+
+ if (!canceled) {
+ info->handle(ec, 0, info->get_cookie(), 0, {});
+ }
+
+ info->finished_async();
+ }
+};
+
+bs::error_code Objecter::_normalize_watch_error(bs::error_code ec)
+{
+ // translate ENOENT -> ENOTCONN so that a delete->disconnection
+ // notification and a failure to reconnect because we raced with
+ // the delete appear the same to the user.
+ if (ec == bs::errc::no_such_file_or_directory)
+ ec = bs::error_code(ENOTCONN, osd_category());
+ return ec;
+}
+
+void Objecter::_linger_reconnect(LingerOp *info, bs::error_code ec)
+{
+ ldout(cct, 10) << __func__ << " " << info->linger_id << " = " << ec
+ << " (last_error " << info->last_error << ")" << dendl;
+ std::unique_lock wl(info->watch_lock);
+ if (ec) {
+ if (!info->last_error) {
+ ec = _normalize_watch_error(ec);
+ if (info->handle) {
+ boost::asio::defer(finish_strand, CB_DoWatchError(this, info, ec));
+ }
+ }
+ }
+
+ info->last_error = ec;
+}
+
+void Objecter::_send_linger_ping(LingerOp *info)
+{
+ // rwlock is locked unique
+ // info->session->lock is locked
+
+ if (cct->_conf->objecter_inject_no_watch_ping) {
+ ldout(cct, 10) << __func__ << " " << info->linger_id << " SKIPPING"
+ << dendl;
+ return;
+ }
+ if (osdmap->test_flag(CEPH_OSDMAP_PAUSERD)) {
+ ldout(cct, 10) << __func__ << " PAUSERD" << dendl;
+ return;
+ }
+
+ ceph::coarse_mono_time now = ceph::coarse_mono_clock::now();
+ ldout(cct, 10) << __func__ << " " << info->linger_id << " now " << now
+ << dendl;
+
+ osdc_opvec opv(1);
+ opv[0].op.op = CEPH_OSD_OP_WATCH;
+ opv[0].op.watch.cookie = info->get_cookie();
+ opv[0].op.watch.op = CEPH_OSD_WATCH_OP_PING;
+ opv[0].op.watch.gen = info->register_gen;
+
+ Op *o = new Op(info->target.base_oid, info->target.base_oloc,
+ std::move(opv), info->target.flags | CEPH_OSD_FLAG_READ,
+ CB_Linger_Ping(this, info, now),
+ nullptr, nullptr);
+ o->target = info->target;
+ o->should_resend = false;
+ _send_op_account(o);
+ o->tid = ++last_tid;
+ _session_op_assign(info->session, o);
+ _send_op(o);
+ info->ping_tid = o->tid;
+
+ logger->inc(l_osdc_linger_ping);
+}
+
+void Objecter::_linger_ping(LingerOp *info, bs::error_code ec, ceph::coarse_mono_time sent,
+ uint32_t register_gen)
+{
+ std::unique_lock l(info->watch_lock);
+ ldout(cct, 10) << __func__ << " " << info->linger_id
+ << " sent " << sent << " gen " << register_gen << " = " << ec
+ << " (last_error " << info->last_error
+ << " register_gen " << info->register_gen << ")" << dendl;
+ if (info->register_gen == register_gen) {
+ if (!ec) {
+ info->watch_valid_thru = sent;
+ } else if (ec && !info->last_error) {
+ ec = _normalize_watch_error(ec);
+ info->last_error = ec;
+ if (info->handle) {
+ boost::asio::defer(finish_strand, CB_DoWatchError(this, info, ec));
+ }
+ }
+ } else {
+ ldout(cct, 20) << " ignoring old gen" << dendl;
+ }
+}
+
+tl::expected<ceph::timespan,
+ bs::error_code> Objecter::linger_check(LingerOp *info)
+{
+ std::shared_lock l(info->watch_lock);
+
+ ceph::coarse_mono_time stamp = info->watch_valid_thru;
+ if (!info->watch_pending_async.empty())
+ stamp = std::min(info->watch_valid_thru, info->watch_pending_async.front());
+ auto age = ceph::coarse_mono_clock::now() - stamp;
+
+ ldout(cct, 10) << __func__ << " " << info->linger_id
+ << " err " << info->last_error
+ << " age " << age << dendl;
+ if (info->last_error)
+ return tl::unexpected(info->last_error);
+ // return a safe upper bound (we are truncating to ms)
+ return age;
+}
+
+void Objecter::linger_cancel(LingerOp *info)
+{
+ unique_lock wl(rwlock);
+ _linger_cancel(info);
+ info->put();
+}
+
+void Objecter::_linger_cancel(LingerOp *info)
+{
+ // rwlock is locked unique
+ ldout(cct, 20) << __func__ << " linger_id=" << info->linger_id << dendl;
+ if (!info->canceled) {
+ OSDSession *s = info->session;
+ std::unique_lock sl(s->lock);
+ _session_linger_op_remove(s, info);
+ sl.unlock();
+
+ linger_ops.erase(info->linger_id);
+ linger_ops_set.erase(info);
+ ceph_assert(linger_ops.size() == linger_ops_set.size());
+
+ info->canceled = true;
+ info->put();
+
+ logger->dec(l_osdc_linger_active);
+ }
+}
+
+
+
+Objecter::LingerOp *Objecter::linger_register(const object_t& oid,
+ const object_locator_t& oloc,
+ int flags)
+{
+ unique_lock l(rwlock);
+ // Acquire linger ID
+ auto info = new LingerOp(this, ++max_linger_id);
+ info->target.base_oid = oid;
+ info->target.base_oloc = oloc;
+ if (info->target.base_oloc.key == oid)
+ info->target.base_oloc.key.clear();
+ info->target.flags = flags;
+ info->watch_valid_thru = ceph::coarse_mono_clock::now();
+ ldout(cct, 10) << __func__ << " info " << info
+ << " linger_id " << info->linger_id
+ << " cookie " << info->get_cookie()
+ << dendl;
+ linger_ops[info->linger_id] = info;
+ linger_ops_set.insert(info);
+ ceph_assert(linger_ops.size() == linger_ops_set.size());
+
+ info->get(); // for the caller
+ return info;
+}
+
+ceph_tid_t Objecter::linger_watch(LingerOp *info,
+ ObjectOperation& op,
+ const SnapContext& snapc,
+ real_time mtime,
+ cb::list& inbl,
+ decltype(info->on_reg_commit)&& oncommit,
+ version_t *objver)
+{
+ info->is_watch = true;
+ info->snapc = snapc;
+ info->mtime = mtime;
+ info->target.flags |= CEPH_OSD_FLAG_WRITE;
+ info->ops = op.ops;
+ info->inbl = inbl;
+ info->pobjver = objver;
+ info->on_reg_commit = std::move(oncommit);
+
+ info->ctx_budget = take_linger_budget(info);
+
+ shunique_lock sul(rwlock, ceph::acquire_unique);
+ _linger_submit(info, sul);
+ logger->inc(l_osdc_linger_active);
+
+ op.clear();
+ return info->linger_id;
+}
+
+ceph_tid_t Objecter::linger_notify(LingerOp *info,
+ ObjectOperation& op,
+ snapid_t snap, cb::list& inbl,
+ decltype(LingerOp::on_reg_commit)&& onfinish,
+ version_t *objver)
+{
+ info->snap = snap;
+ info->target.flags |= CEPH_OSD_FLAG_READ;
+ info->ops = op.ops;
+ info->inbl = inbl;
+ info->pobjver = objver;
+ info->on_reg_commit = std::move(onfinish);
+ info->ctx_budget = take_linger_budget(info);
+
+ shunique_lock sul(rwlock, ceph::acquire_unique);
+ _linger_submit(info, sul);
+ logger->inc(l_osdc_linger_active);
+
+ op.clear();
+ return info->linger_id;
+}
+
+void Objecter::_linger_submit(LingerOp *info,
+ ceph::shunique_lock<ceph::shared_mutex>& sul)
+{
+ ceph_assert(sul.owns_lock() && sul.mutex() == &rwlock);
+ ceph_assert(info->linger_id);
+ ceph_assert(info->ctx_budget != -1); // caller needs to have taken budget already!
+
+ // Populate Op::target
+ OSDSession *s = NULL;
+ int r = _calc_target(&info->target, nullptr);
+ switch (r) {
+ case RECALC_OP_TARGET_POOL_EIO:
+ _check_linger_pool_eio(info);
+ return;
+ }
+
+ // Create LingerOp<->OSDSession relation
+ r = _get_session(info->target.osd, &s, sul);
+ ceph_assert(r == 0);
+ unique_lock sl(s->lock);
+ _session_linger_op_assign(s, info);
+ sl.unlock();
+ put_session(s);
+
+ _send_linger(info, sul);
+}
+
+struct CB_DoWatchNotify {
+ Objecter *objecter;
+ boost::intrusive_ptr<Objecter::LingerOp> info;
+ boost::intrusive_ptr<MWatchNotify> msg;
+ CB_DoWatchNotify(Objecter *o, Objecter::LingerOp *i, MWatchNotify *m)
+ : objecter(o), info(i), msg(m) {
+ info->_queued_async();
+ }
+ void operator()() {
+ objecter->_do_watch_notify(std::move(info), std::move(msg));
+ }
+};
+
+void Objecter::handle_watch_notify(MWatchNotify *m)
+{
+ shared_lock l(rwlock);
+ if (!initialized) {
+ return;
+ }
+
+ LingerOp *info = reinterpret_cast<LingerOp*>(m->cookie);
+ if (linger_ops_set.count(info) == 0) {
+ ldout(cct, 7) << __func__ << " cookie " << m->cookie << " dne" << dendl;
+ return;
+ }
+ std::unique_lock wl(info->watch_lock);
+ if (m->opcode == CEPH_WATCH_EVENT_DISCONNECT) {
+ if (!info->last_error) {
+ info->last_error = bs::error_code(ENOTCONN, osd_category());
+ if (info->handle) {
+ boost::asio::defer(finish_strand, CB_DoWatchError(this, info,
+ info->last_error));
+ }
+ }
+ } else if (!info->is_watch) {
+ // we have CEPH_WATCH_EVENT_NOTIFY_COMPLETE; we can do this inline
+ // since we know the only user (librados) is safe to call in
+ // fast-dispatch context
+ if (info->notify_id &&
+ info->notify_id != m->notify_id) {
+ ldout(cct, 10) << __func__ << " reply notify " << m->notify_id
+ << " != " << info->notify_id << ", ignoring" << dendl;
+ } else if (info->on_notify_finish) {
+ info->on_notify_finish->defer(
+ std::move(info->on_notify_finish),
+ osdcode(m->return_code), std::move(m->get_data()));
+
+ // if we race with reconnect we might get a second notify; only
+ // notify the caller once!
+ info->on_notify_finish = nullptr;
+ }
+ } else {
+ boost::asio::defer(finish_strand, CB_DoWatchNotify(this, info, m));
+ }
+}
+
+void Objecter::_do_watch_notify(boost::intrusive_ptr<LingerOp> info,
+ boost::intrusive_ptr<MWatchNotify> m)
+{
+ ldout(cct, 10) << __func__ << " " << *m << dendl;
+
+ shared_lock l(rwlock);
+ ceph_assert(initialized);
+
+ if (info->canceled) {
+ l.unlock();
+ goto out;
+ }
+
+ // notify completion?
+ ceph_assert(info->is_watch);
+ ceph_assert(info->handle);
+ ceph_assert(m->opcode != CEPH_WATCH_EVENT_DISCONNECT);
+
+ l.unlock();
+
+ switch (m->opcode) {
+ case CEPH_WATCH_EVENT_NOTIFY:
+ info->handle({}, m->notify_id, m->cookie, m->notifier_gid, std::move(m->bl));
+ break;
+ }
+
+ out:
+ info->finished_async();
+}
+
+bool Objecter::ms_dispatch(Message *m)
+{
+ ldout(cct, 10) << __func__ << " " << cct << " " << *m << dendl;
+ switch (m->get_type()) {
+ // these we exlusively handle
+ case CEPH_MSG_OSD_OPREPLY:
+ handle_osd_op_reply(static_cast<MOSDOpReply*>(m));
+ return true;
+
+ case CEPH_MSG_OSD_BACKOFF:
+ handle_osd_backoff(static_cast<MOSDBackoff*>(m));
+ return true;
+
+ case CEPH_MSG_WATCH_NOTIFY:
+ handle_watch_notify(static_cast<MWatchNotify*>(m));
+ m->put();
+ return true;
+
+ case MSG_COMMAND_REPLY:
+ if (m->get_source().type() == CEPH_ENTITY_TYPE_OSD) {
+ handle_command_reply(static_cast<MCommandReply*>(m));
+ return true;
+ } else {
+ return false;
+ }
+
+ case MSG_GETPOOLSTATSREPLY:
+ handle_get_pool_stats_reply(static_cast<MGetPoolStatsReply*>(m));
+ return true;
+
+ case CEPH_MSG_POOLOP_REPLY:
+ handle_pool_op_reply(static_cast<MPoolOpReply*>(m));
+ return true;
+
+ case CEPH_MSG_STATFS_REPLY:
+ handle_fs_stats_reply(static_cast<MStatfsReply*>(m));
+ return true;
+
+ // these we give others a chance to inspect
+
+ // MDS, OSD
+ case CEPH_MSG_OSD_MAP:
+ handle_osd_map(static_cast<MOSDMap*>(m));
+ return false;
+ }
+ return false;
+}
+
+void Objecter::_scan_requests(
+ OSDSession *s,
+ bool skipped_map,
+ bool cluster_full,
+ map<int64_t, bool> *pool_full_map,
+ map<ceph_tid_t, Op*>& need_resend,
+ list<LingerOp*>& need_resend_linger,
+ map<ceph_tid_t, CommandOp*>& need_resend_command,
+ ceph::shunique_lock<ceph::shared_mutex>& sul)
+{
+ ceph_assert(sul.owns_lock() && sul.mutex() == &rwlock);
+
+ list<LingerOp*> unregister_lingers;
+
+ std::unique_lock sl(s->lock);
+
+ // check for changed linger mappings (_before_ regular ops)
+ auto lp = s->linger_ops.begin();
+ while (lp != s->linger_ops.end()) {
+ auto op = lp->second;
+ ceph_assert(op->session == s);
+ // check_linger_pool_dne() may touch linger_ops; prevent iterator
+ // invalidation
+ ++lp;
+ ldout(cct, 10) << " checking linger op " << op->linger_id << dendl;
+ bool unregister, force_resend_writes = cluster_full;
+ int r = _recalc_linger_op_target(op, sul);
+ if (pool_full_map)
+ force_resend_writes = force_resend_writes ||
+ (*pool_full_map)[op->target.base_oloc.pool];
+ switch (r) {
+ case RECALC_OP_TARGET_NO_ACTION:
+ if (!skipped_map && !force_resend_writes)
+ break;
+ // -- fall-thru --
+ case RECALC_OP_TARGET_NEED_RESEND:
+ need_resend_linger.push_back(op);
+ _linger_cancel_map_check(op);
+ break;
+ case RECALC_OP_TARGET_POOL_DNE:
+ _check_linger_pool_dne(op, &unregister);
+ if (unregister) {
+ ldout(cct, 10) << " need to unregister linger op "
+ << op->linger_id << dendl;
+ op->get();
+ unregister_lingers.push_back(op);
+ }
+ break;
+ case RECALC_OP_TARGET_POOL_EIO:
+ _check_linger_pool_eio(op);
+ ldout(cct, 10) << " need to unregister linger op "
+ << op->linger_id << dendl;
+ op->get();
+ unregister_lingers.push_back(op);
+ break;
+ }
+ }
+
+ // check for changed request mappings
+ auto p = s->ops.begin();
+ while (p != s->ops.end()) {
+ Op *op = p->second;
+ ++p; // check_op_pool_dne() may touch ops; prevent iterator invalidation
+ ldout(cct, 10) << " checking op " << op->tid << dendl;
+ _prune_snapc(osdmap->get_new_removed_snaps(), op);
+ bool force_resend_writes = cluster_full;
+ if (pool_full_map)
+ force_resend_writes = force_resend_writes ||
+ (*pool_full_map)[op->target.base_oloc.pool];
+ int r = _calc_target(&op->target,
+ op->session ? op->session->con.get() : nullptr);
+ switch (r) {
+ case RECALC_OP_TARGET_NO_ACTION:
+ if (!skipped_map && !(force_resend_writes && op->target.respects_full()))
+ break;
+ // -- fall-thru --
+ case RECALC_OP_TARGET_NEED_RESEND:
+ _session_op_remove(op->session, op);
+ need_resend[op->tid] = op;
+ _op_cancel_map_check(op);
+ break;
+ case RECALC_OP_TARGET_POOL_DNE:
+ _check_op_pool_dne(op, &sl);
+ break;
+ case RECALC_OP_TARGET_POOL_EIO:
+ _check_op_pool_eio(op, &sl);
+ break;
+ }
+ }
+
+ // commands
+ auto cp = s->command_ops.begin();
+ while (cp != s->command_ops.end()) {
+ auto c = cp->second;
+ ++cp;
+ ldout(cct, 10) << " checking command " << c->tid << dendl;
+ bool force_resend_writes = cluster_full;
+ if (pool_full_map)
+ force_resend_writes = force_resend_writes ||
+ (*pool_full_map)[c->target_pg.pool()];
+ int r = _calc_command_target(c, sul);
+ switch (r) {
+ case RECALC_OP_TARGET_NO_ACTION:
+ // resend if skipped map; otherwise do nothing.
+ if (!skipped_map && !force_resend_writes)
+ break;
+ // -- fall-thru --
+ case RECALC_OP_TARGET_NEED_RESEND:
+ need_resend_command[c->tid] = c;
+ _session_command_op_remove(c->session, c);
+ _command_cancel_map_check(c);
+ break;
+ case RECALC_OP_TARGET_POOL_DNE:
+ case RECALC_OP_TARGET_OSD_DNE:
+ case RECALC_OP_TARGET_OSD_DOWN:
+ _check_command_map_dne(c);
+ break;
+ }
+ }
+
+ sl.unlock();
+
+ for (auto iter = unregister_lingers.begin();
+ iter != unregister_lingers.end();
+ ++iter) {
+ _linger_cancel(*iter);
+ (*iter)->put();
+ }
+}
+
+void Objecter::handle_osd_map(MOSDMap *m)
+{
+ ceph::shunique_lock sul(rwlock, acquire_unique);
+ if (!initialized)
+ return;
+
+ ceph_assert(osdmap);
+
+ if (m->fsid != monc->get_fsid()) {
+ ldout(cct, 0) << "handle_osd_map fsid " << m->fsid
+ << " != " << monc->get_fsid() << dendl;
+ return;
+ }
+
+ bool was_pauserd = osdmap->test_flag(CEPH_OSDMAP_PAUSERD);
+ bool cluster_full = _osdmap_full_flag();
+ bool was_pausewr = osdmap->test_flag(CEPH_OSDMAP_PAUSEWR) || cluster_full ||
+ _osdmap_has_pool_full();
+ map<int64_t, bool> pool_full_map;
+ for (auto it = osdmap->get_pools().begin();
+ it != osdmap->get_pools().end(); ++it)
+ pool_full_map[it->first] = _osdmap_pool_full(it->second);
+
+
+ list<LingerOp*> need_resend_linger;
+ map<ceph_tid_t, Op*> need_resend;
+ map<ceph_tid_t, CommandOp*> need_resend_command;
+
+ if (m->get_last() <= osdmap->get_epoch()) {
+ ldout(cct, 3) << "handle_osd_map ignoring epochs ["
+ << m->get_first() << "," << m->get_last()
+ << "] <= " << osdmap->get_epoch() << dendl;
+ } else {
+ ldout(cct, 3) << "handle_osd_map got epochs ["
+ << m->get_first() << "," << m->get_last()
+ << "] > " << osdmap->get_epoch() << dendl;
+
+ if (osdmap->get_epoch()) {
+ bool skipped_map = false;
+ // we want incrementals
+ for (epoch_t e = osdmap->get_epoch() + 1;
+ e <= m->get_last();
+ e++) {
+
+ if (osdmap->get_epoch() == e-1 &&
+ m->incremental_maps.count(e)) {
+ ldout(cct, 3) << "handle_osd_map decoding incremental epoch " << e
+ << dendl;
+ OSDMap::Incremental inc(m->incremental_maps[e]);
+ osdmap->apply_incremental(inc);
+
+ emit_blocklist_events(inc);
+
+ logger->inc(l_osdc_map_inc);
+ }
+ else if (m->maps.count(e)) {
+ ldout(cct, 3) << "handle_osd_map decoding full epoch " << e << dendl;
+ auto new_osdmap = std::make_unique<OSDMap>();
+ new_osdmap->decode(m->maps[e]);
+
+ emit_blocklist_events(*osdmap, *new_osdmap);
+ osdmap = std::move(new_osdmap);
+
+ logger->inc(l_osdc_map_full);
+ }
+ else {
+ if (e >= m->cluster_osdmap_trim_lower_bound) {
+ ldout(cct, 3) << "handle_osd_map requesting missing epoch "
+ << osdmap->get_epoch()+1 << dendl;
+ _maybe_request_map();
+ break;
+ }
+ ldout(cct, 3) << "handle_osd_map missing epoch "
+ << osdmap->get_epoch()+1
+ << ", jumping to "
+ << m->cluster_osdmap_trim_lower_bound << dendl;
+ e = m->cluster_osdmap_trim_lower_bound - 1;
+ skipped_map = true;
+ continue;
+ }
+ logger->set(l_osdc_map_epoch, osdmap->get_epoch());
+
+ prune_pg_mapping(osdmap->get_pools());
+ cluster_full = cluster_full || _osdmap_full_flag();
+ update_pool_full_map(pool_full_map);
+
+ // check all outstanding requests on every epoch
+ for (auto& i : need_resend) {
+ _prune_snapc(osdmap->get_new_removed_snaps(), i.second);
+ }
+ _scan_requests(homeless_session, skipped_map, cluster_full,
+ &pool_full_map, need_resend,
+ need_resend_linger, need_resend_command, sul);
+ for (auto p = osd_sessions.begin();
+ p != osd_sessions.end(); ) {
+ auto s = p->second;
+ _scan_requests(s, skipped_map, cluster_full,
+ &pool_full_map, need_resend,
+ need_resend_linger, need_resend_command, sul);
+ ++p;
+ // osd down or addr change?
+ if (!osdmap->is_up(s->osd) ||
+ (s->con &&
+ s->con->get_peer_addrs() != osdmap->get_addrs(s->osd))) {
+ close_session(s);
+ }
+ }
+
+ ceph_assert(e == osdmap->get_epoch());
+ }
+
+ } else {
+ // first map. we want the full thing.
+ if (m->maps.count(m->get_last())) {
+ for (auto p = osd_sessions.begin();
+ p != osd_sessions.end(); ++p) {
+ OSDSession *s = p->second;
+ _scan_requests(s, false, false, NULL, need_resend,
+ need_resend_linger, need_resend_command, sul);
+ }
+ ldout(cct, 3) << "handle_osd_map decoding full epoch "
+ << m->get_last() << dendl;
+ osdmap->decode(m->maps[m->get_last()]);
+ prune_pg_mapping(osdmap->get_pools());
+
+ _scan_requests(homeless_session, false, false, NULL,
+ need_resend, need_resend_linger,
+ need_resend_command, sul);
+ } else {
+ ldout(cct, 3) << "handle_osd_map hmm, i want a full map, requesting"
+ << dendl;
+ monc->sub_want("osdmap", 0, CEPH_SUBSCRIBE_ONETIME);
+ monc->renew_subs();
+ }
+ }
+ }
+
+ // make sure need_resend targets reflect latest map
+ for (auto p = need_resend.begin(); p != need_resend.end(); ) {
+ Op *op = p->second;
+ if (op->target.epoch < osdmap->get_epoch()) {
+ ldout(cct, 10) << __func__ << " checking op " << p->first << dendl;
+ int r = _calc_target(&op->target, nullptr);
+ if (r == RECALC_OP_TARGET_POOL_DNE) {
+ p = need_resend.erase(p);
+ _check_op_pool_dne(op, nullptr);
+ } else {
+ ++p;
+ }
+ } else {
+ ++p;
+ }
+ }
+
+ bool pauserd = osdmap->test_flag(CEPH_OSDMAP_PAUSERD);
+ bool pausewr = osdmap->test_flag(CEPH_OSDMAP_PAUSEWR) || _osdmap_full_flag()
+ || _osdmap_has_pool_full();
+
+ // was/is paused?
+ if (was_pauserd || was_pausewr || pauserd || pausewr ||
+ osdmap->get_epoch() < epoch_barrier) {
+ _maybe_request_map();
+ }
+
+ // resend requests
+ for (auto p = need_resend.begin();
+ p != need_resend.end(); ++p) {
+ auto op = p->second;
+ auto s = op->session;
+ bool mapped_session = false;
+ if (!s) {
+ int r = _map_session(&op->target, &s, sul);
+ ceph_assert(r == 0);
+ mapped_session = true;
+ } else {
+ get_session(s);
+ }
+ std::unique_lock sl(s->lock);
+ if (mapped_session) {
+ _session_op_assign(s, op);
+ }
+ if (op->should_resend) {
+ if (!op->session->is_homeless() && !op->target.paused) {
+ logger->inc(l_osdc_op_resend);
+ _send_op(op);
+ }
+ } else {
+ _op_cancel_map_check(op);
+ _cancel_linger_op(op);
+ }
+ sl.unlock();
+ put_session(s);
+ }
+ for (auto p = need_resend_linger.begin();
+ p != need_resend_linger.end(); ++p) {
+ LingerOp *op = *p;
+ ceph_assert(op->session);
+ if (!op->session->is_homeless()) {
+ logger->inc(l_osdc_linger_resend);
+ _send_linger(op, sul);
+ }
+ }
+ for (auto p = need_resend_command.begin();
+ p != need_resend_command.end(); ++p) {
+ auto c = p->second;
+ if (c->target.osd >= 0) {
+ _assign_command_session(c, sul);
+ if (c->session && !c->session->is_homeless()) {
+ _send_command(c);
+ }
+ }
+ }
+
+ _dump_active();
+
+ // finish any Contexts that were waiting on a map update
+ auto p = waiting_for_map.begin();
+ while (p != waiting_for_map.end() &&
+ p->first <= osdmap->get_epoch()) {
+ //go through the list and call the onfinish methods
+ for (auto& [c, ec] : p->second) {
+ ca::post(std::move(c), ec);
+ }
+ waiting_for_map.erase(p++);
+ }
+
+ monc->sub_got("osdmap", osdmap->get_epoch());
+
+ if (!waiting_for_map.empty()) {
+ _maybe_request_map();
+ }
+}
+
+void Objecter::enable_blocklist_events()
+{
+ unique_lock wl(rwlock);
+
+ blocklist_events_enabled = true;
+}
+
+void Objecter::consume_blocklist_events(std::set<entity_addr_t> *events)
+{
+ unique_lock wl(rwlock);
+
+ if (events->empty()) {
+ events->swap(blocklist_events);
+ } else {
+ for (const auto &i : blocklist_events) {
+ events->insert(i);
+ }
+ blocklist_events.clear();
+ }
+}
+
+void Objecter::emit_blocklist_events(const OSDMap::Incremental &inc)
+{
+ if (!blocklist_events_enabled) {
+ return;
+ }
+
+ for (const auto &i : inc.new_blocklist) {
+ blocklist_events.insert(i.first);
+ }
+}
+
+void Objecter::emit_blocklist_events(const OSDMap &old_osd_map,
+ const OSDMap &new_osd_map)
+{
+ if (!blocklist_events_enabled) {
+ return;
+ }
+
+ std::set<entity_addr_t> old_set;
+ std::set<entity_addr_t> new_set;
+ std::set<entity_addr_t> old_range_set;
+ std::set<entity_addr_t> new_range_set;
+
+ old_osd_map.get_blocklist(&old_set, &old_range_set);
+ new_osd_map.get_blocklist(&new_set, &new_range_set);
+
+ std::set<entity_addr_t> delta_set;
+ std::set_difference(
+ new_set.begin(), new_set.end(), old_set.begin(), old_set.end(),
+ std::inserter(delta_set, delta_set.begin()));
+ std::set_difference(
+ new_range_set.begin(), new_range_set.end(),
+ old_range_set.begin(), old_range_set.end(),
+ std::inserter(delta_set, delta_set.begin()));
+ blocklist_events.insert(delta_set.begin(), delta_set.end());
+}
+
+// op pool check
+
+void Objecter::CB_Op_Map_Latest::operator()(bs::error_code e,
+ version_t latest, version_t)
+{
+ if (e == bs::errc::resource_unavailable_try_again ||
+ e == bs::errc::operation_canceled)
+ return;
+
+ lgeneric_subdout(objecter->cct, objecter, 10)
+ << "op_map_latest r=" << e << " tid=" << tid
+ << " latest " << latest << dendl;
+
+ unique_lock wl(objecter->rwlock);
+
+ auto iter = objecter->check_latest_map_ops.find(tid);
+ if (iter == objecter->check_latest_map_ops.end()) {
+ lgeneric_subdout(objecter->cct, objecter, 10)
+ << "op_map_latest op "<< tid << " not found" << dendl;
+ return;
+ }
+
+ Op *op = iter->second;
+ objecter->check_latest_map_ops.erase(iter);
+
+ lgeneric_subdout(objecter->cct, objecter, 20)
+ << "op_map_latest op "<< op << dendl;
+
+ if (op->map_dne_bound == 0)
+ op->map_dne_bound = latest;
+
+ unique_lock sl(op->session->lock, defer_lock);
+ objecter->_check_op_pool_dne(op, &sl);
+
+ op->put();
+}
+
+int Objecter::pool_snap_by_name(int64_t poolid, const char *snap_name,
+ snapid_t *snap) const
+{
+ shared_lock rl(rwlock);
+
+ auto& pools = osdmap->get_pools();
+ auto iter = pools.find(poolid);
+ if (iter == pools.end()) {
+ return -ENOENT;
+ }
+ const pg_pool_t& pg_pool = iter->second;
+ for (auto p = pg_pool.snaps.begin();
+ p != pg_pool.snaps.end();
+ ++p) {
+ if (p->second.name == snap_name) {
+ *snap = p->first;
+ return 0;
+ }
+ }
+ return -ENOENT;
+}
+
+int Objecter::pool_snap_get_info(int64_t poolid, snapid_t snap,
+ pool_snap_info_t *info) const
+{
+ shared_lock rl(rwlock);
+
+ auto& pools = osdmap->get_pools();
+ auto iter = pools.find(poolid);
+ if (iter == pools.end()) {
+ return -ENOENT;
+ }
+ const pg_pool_t& pg_pool = iter->second;
+ auto p = pg_pool.snaps.find(snap);
+ if (p == pg_pool.snaps.end())
+ return -ENOENT;
+ *info = p->second;
+
+ return 0;
+}
+
+int Objecter::pool_snap_list(int64_t poolid, vector<uint64_t> *snaps)
+{
+ shared_lock rl(rwlock);
+
+ const pg_pool_t *pi = osdmap->get_pg_pool(poolid);
+ if (!pi)
+ return -ENOENT;
+ for (auto p = pi->snaps.begin();
+ p != pi->snaps.end();
+ ++p) {
+ snaps->push_back(p->first);
+ }
+ return 0;
+}
+
+// sl may be unlocked.
+void Objecter::_check_op_pool_dne(Op *op, std::unique_lock<std::shared_mutex> *sl)
+{
+ // rwlock is locked unique
+
+ if (op->target.pool_ever_existed) {
+ // the pool previously existed and now it does not, which means it
+ // was deleted.
+ op->map_dne_bound = osdmap->get_epoch();
+ ldout(cct, 10) << "check_op_pool_dne tid " << op->tid
+ << " pool previously exists but now does not"
+ << dendl;
+ } else {
+ ldout(cct, 10) << "check_op_pool_dne tid " << op->tid
+ << " current " << osdmap->get_epoch()
+ << " map_dne_bound " << op->map_dne_bound
+ << dendl;
+ }
+ if (op->map_dne_bound > 0) {
+ if (osdmap->get_epoch() >= op->map_dne_bound) {
+ // we had a new enough map
+ ldout(cct, 10) << "check_op_pool_dne tid " << op->tid
+ << " concluding pool " << op->target.base_pgid.pool()
+ << " dne" << dendl;
+ if (op->has_completion()) {
+ num_in_flight--;
+ op->complete(osdc_errc::pool_dne, -ENOENT);
+ }
+
+ OSDSession *s = op->session;
+ if (s) {
+ ceph_assert(s != NULL);
+ ceph_assert(sl->mutex() == &s->lock);
+ bool session_locked = sl->owns_lock();
+ if (!session_locked) {
+ sl->lock();
+ }
+ _finish_op(op, 0);
+ if (!session_locked) {
+ sl->unlock();
+ }
+ } else {
+ _finish_op(op, 0); // no session
+ }
+ }
+ } else {
+ _send_op_map_check(op);
+ }
+}
+
+// sl may be unlocked.
+void Objecter::_check_op_pool_eio(Op *op, std::unique_lock<std::shared_mutex> *sl)
+{
+ // rwlock is locked unique
+
+ // we had a new enough map
+ ldout(cct, 10) << "check_op_pool_eio tid " << op->tid
+ << " concluding pool " << op->target.base_pgid.pool()
+ << " has eio" << dendl;
+ if (op->has_completion()) {
+ num_in_flight--;
+ op->complete(osdc_errc::pool_eio, -EIO);
+ }
+
+ OSDSession *s = op->session;
+ if (s) {
+ ceph_assert(s != NULL);
+ ceph_assert(sl->mutex() == &s->lock);
+ bool session_locked = sl->owns_lock();
+ if (!session_locked) {
+ sl->lock();
+ }
+ _finish_op(op, 0);
+ if (!session_locked) {
+ sl->unlock();
+ }
+ } else {
+ _finish_op(op, 0); // no session
+ }
+}
+
+void Objecter::_send_op_map_check(Op *op)
+{
+ // rwlock is locked unique
+ // ask the monitor
+ if (check_latest_map_ops.count(op->tid) == 0) {
+ op->get();
+ check_latest_map_ops[op->tid] = op;
+ monc->get_version("osdmap", CB_Op_Map_Latest(this, op->tid));
+ }
+}
+
+void Objecter::_op_cancel_map_check(Op *op)
+{
+ // rwlock is locked unique
+ auto iter = check_latest_map_ops.find(op->tid);
+ if (iter != check_latest_map_ops.end()) {
+ Op *op = iter->second;
+ op->put();
+ check_latest_map_ops.erase(iter);
+ }
+}
+
+// linger pool check
+
+void Objecter::CB_Linger_Map_Latest::operator()(bs::error_code e,
+ version_t latest,
+ version_t)
+{
+ if (e == bs::errc::resource_unavailable_try_again ||
+ e == bs::errc::operation_canceled) {
+ // ignore callback; we will retry in resend_mon_ops()
+ return;
+ }
+
+ unique_lock wl(objecter->rwlock);
+
+ auto iter = objecter->check_latest_map_lingers.find(linger_id);
+ if (iter == objecter->check_latest_map_lingers.end()) {
+ return;
+ }
+
+ auto op = iter->second;
+ objecter->check_latest_map_lingers.erase(iter);
+
+ if (op->map_dne_bound == 0)
+ op->map_dne_bound = latest;
+
+ bool unregister;
+ objecter->_check_linger_pool_dne(op, &unregister);
+
+ if (unregister) {
+ objecter->_linger_cancel(op);
+ }
+
+ op->put();
+}
+
+void Objecter::_check_linger_pool_dne(LingerOp *op, bool *need_unregister)
+{
+ // rwlock is locked unique
+
+ *need_unregister = false;
+
+ if (op->register_gen > 0) {
+ ldout(cct, 10) << "_check_linger_pool_dne linger_id " << op->linger_id
+ << " pool previously existed but now does not"
+ << dendl;
+ op->map_dne_bound = osdmap->get_epoch();
+ } else {
+ ldout(cct, 10) << "_check_linger_pool_dne linger_id " << op->linger_id
+ << " current " << osdmap->get_epoch()
+ << " map_dne_bound " << op->map_dne_bound
+ << dendl;
+ }
+ if (op->map_dne_bound > 0) {
+ if (osdmap->get_epoch() >= op->map_dne_bound) {
+ std::unique_lock wl{op->watch_lock};
+ if (op->on_reg_commit) {
+ op->on_reg_commit->defer(std::move(op->on_reg_commit),
+ osdc_errc::pool_dne, cb::list{});
+ op->on_reg_commit = nullptr;
+ }
+ if (op->on_notify_finish) {
+ op->on_notify_finish->defer(std::move(op->on_notify_finish),
+ osdc_errc::pool_dne, cb::list{});
+ op->on_notify_finish = nullptr;
+ }
+ *need_unregister = true;
+ }
+ } else {
+ _send_linger_map_check(op);
+ }
+}
+
+void Objecter::_check_linger_pool_eio(LingerOp *op)
+{
+ // rwlock is locked unique
+
+ std::unique_lock wl{op->watch_lock};
+ if (op->on_reg_commit) {
+ op->on_reg_commit->defer(std::move(op->on_reg_commit),
+ osdc_errc::pool_dne, cb::list{});
+ op->on_reg_commit = nullptr;
+ }
+ if (op->on_notify_finish) {
+ op->on_notify_finish->defer(std::move(op->on_notify_finish),
+ osdc_errc::pool_dne, cb::list{});
+ op->on_notify_finish = nullptr;
+ }
+}
+
+void Objecter::_send_linger_map_check(LingerOp *op)
+{
+ // ask the monitor
+ if (check_latest_map_lingers.count(op->linger_id) == 0) {
+ op->get();
+ check_latest_map_lingers[op->linger_id] = op;
+ monc->get_version("osdmap", CB_Linger_Map_Latest(this, op->linger_id));
+ }
+}
+
+void Objecter::_linger_cancel_map_check(LingerOp *op)
+{
+ // rwlock is locked unique
+
+ auto iter = check_latest_map_lingers.find(op->linger_id);
+ if (iter != check_latest_map_lingers.end()) {
+ LingerOp *op = iter->second;
+ op->put();
+ check_latest_map_lingers.erase(iter);
+ }
+}
+
+// command pool check
+
+void Objecter::CB_Command_Map_Latest::operator()(bs::error_code e,
+ version_t latest, version_t)
+{
+ if (e == bs::errc::resource_unavailable_try_again ||
+ e == bs::errc::operation_canceled) {
+ // ignore callback; we will retry in resend_mon_ops()
+ return;
+ }
+
+ unique_lock wl(objecter->rwlock);
+
+ auto iter = objecter->check_latest_map_commands.find(tid);
+ if (iter == objecter->check_latest_map_commands.end()) {
+ return;
+ }
+
+ auto c = iter->second;
+ objecter->check_latest_map_commands.erase(iter);
+
+ if (c->map_dne_bound == 0)
+ c->map_dne_bound = latest;
+
+ unique_lock sul(c->session->lock);
+ objecter->_check_command_map_dne(c);
+ sul.unlock();
+
+ c->put();
+}
+
+void Objecter::_check_command_map_dne(CommandOp *c)
+{
+ // rwlock is locked unique
+ // session is locked unique
+
+ ldout(cct, 10) << "_check_command_map_dne tid " << c->tid
+ << " current " << osdmap->get_epoch()
+ << " map_dne_bound " << c->map_dne_bound
+ << dendl;
+ if (c->map_dne_bound > 0) {
+ if (osdmap->get_epoch() >= c->map_dne_bound) {
+ _finish_command(c, osdcode(c->map_check_error),
+ std::move(c->map_check_error_str), {});
+ }
+ } else {
+ _send_command_map_check(c);
+ }
+}
+
+void Objecter::_send_command_map_check(CommandOp *c)
+{
+ // rwlock is locked unique
+ // session is locked unique
+
+ // ask the monitor
+ if (check_latest_map_commands.count(c->tid) == 0) {
+ c->get();
+ check_latest_map_commands[c->tid] = c;
+ monc->get_version("osdmap", CB_Command_Map_Latest(this, c->tid));
+ }
+}
+
+void Objecter::_command_cancel_map_check(CommandOp *c)
+{
+ // rwlock is locked uniqe
+
+ auto iter = check_latest_map_commands.find(c->tid);
+ if (iter != check_latest_map_commands.end()) {
+ auto c = iter->second;
+ c->put();
+ check_latest_map_commands.erase(iter);
+ }
+}
+
+
+/**
+ * Look up OSDSession by OSD id.
+ *
+ * @returns 0 on success, or -EAGAIN if the lock context requires
+ * promotion to write.
+ */
+int Objecter::_get_session(int osd, OSDSession **session,
+ shunique_lock<ceph::shared_mutex>& sul)
+{
+ ceph_assert(sul && sul.mutex() == &rwlock);
+
+ if (osd < 0) {
+ *session = homeless_session;
+ ldout(cct, 20) << __func__ << " osd=" << osd << " returning homeless"
+ << dendl;
+ return 0;
+ }
+
+ auto p = osd_sessions.find(osd);
+ if (p != osd_sessions.end()) {
+ auto s = p->second;
+ s->get();
+ *session = s;
+ ldout(cct, 20) << __func__ << " s=" << s << " osd=" << osd << " "
+ << s->get_nref() << dendl;
+ return 0;
+ }
+ if (!sul.owns_lock()) {
+ return -EAGAIN;
+ }
+ auto s = new OSDSession(cct, osd);
+ osd_sessions[osd] = s;
+ s->con = messenger->connect_to_osd(osdmap->get_addrs(osd));
+ s->con->set_priv(RefCountedPtr{s});
+ logger->inc(l_osdc_osd_session_open);
+ logger->set(l_osdc_osd_sessions, osd_sessions.size());
+ s->get();
+ *session = s;
+ ldout(cct, 20) << __func__ << " s=" << s << " osd=" << osd << " "
+ << s->get_nref() << dendl;
+ return 0;
+}
+
+void Objecter::put_session(Objecter::OSDSession *s)
+{
+ if (s && !s->is_homeless()) {
+ ldout(cct, 20) << __func__ << " s=" << s << " osd=" << s->osd << " "
+ << s->get_nref() << dendl;
+ s->put();
+ }
+}
+
+void Objecter::get_session(Objecter::OSDSession *s)
+{
+ ceph_assert(s != NULL);
+
+ if (!s->is_homeless()) {
+ ldout(cct, 20) << __func__ << " s=" << s << " osd=" << s->osd << " "
+ << s->get_nref() << dendl;
+ s->get();
+ }
+}
+
+void Objecter::_reopen_session(OSDSession *s)
+{
+ // rwlock is locked unique
+ // s->lock is locked
+
+ auto addrs = osdmap->get_addrs(s->osd);
+ ldout(cct, 10) << "reopen_session osd." << s->osd << " session, addr now "
+ << addrs << dendl;
+ if (s->con) {
+ s->con->set_priv(NULL);
+ s->con->mark_down();
+ logger->inc(l_osdc_osd_session_close);
+ }
+ s->con = messenger->connect_to_osd(addrs);
+ s->con->set_priv(RefCountedPtr{s});
+ s->incarnation++;
+ logger->inc(l_osdc_osd_session_open);
+}
+
+void Objecter::close_session(OSDSession *s)
+{
+ // rwlock is locked unique
+
+ ldout(cct, 10) << "close_session for osd." << s->osd << dendl;
+ if (s->con) {
+ s->con->set_priv(NULL);
+ s->con->mark_down();
+ logger->inc(l_osdc_osd_session_close);
+ }
+ unique_lock sl(s->lock);
+
+ std::list<LingerOp*> homeless_lingers;
+ std::list<CommandOp*> homeless_commands;
+ std::list<Op*> homeless_ops;
+
+ while (!s->linger_ops.empty()) {
+ auto i = s->linger_ops.begin();
+ ldout(cct, 10) << " linger_op " << i->first << dendl;
+ homeless_lingers.push_back(i->second);
+ _session_linger_op_remove(s, i->second);
+ }
+
+ while (!s->ops.empty()) {
+ auto i = s->ops.begin();
+ ldout(cct, 10) << " op " << i->first << dendl;
+ homeless_ops.push_back(i->second);
+ _session_op_remove(s, i->second);
+ }
+
+ while (!s->command_ops.empty()) {
+ auto i = s->command_ops.begin();
+ ldout(cct, 10) << " command_op " << i->first << dendl;
+ homeless_commands.push_back(i->second);
+ _session_command_op_remove(s, i->second);
+ }
+
+ osd_sessions.erase(s->osd);
+ sl.unlock();
+ put_session(s);
+
+ // Assign any leftover ops to the homeless session
+ {
+ unique_lock hsl(homeless_session->lock);
+ for (auto i = homeless_lingers.begin();
+ i != homeless_lingers.end(); ++i) {
+ _session_linger_op_assign(homeless_session, *i);
+ }
+ for (auto i = homeless_ops.begin();
+ i != homeless_ops.end(); ++i) {
+ _session_op_assign(homeless_session, *i);
+ }
+ for (auto i = homeless_commands.begin();
+ i != homeless_commands.end(); ++i) {
+ _session_command_op_assign(homeless_session, *i);
+ }
+ }
+
+ logger->set(l_osdc_osd_sessions, osd_sessions.size());
+}
+
+void Objecter::wait_for_osd_map(epoch_t e)
+{
+ unique_lock l(rwlock);
+ if (osdmap->get_epoch() >= e) {
+ l.unlock();
+ return;
+ }
+
+ ca::waiter<bs::error_code> w;
+ waiting_for_map[e].emplace_back(OpCompletion::create(
+ service.get_executor(),
+ w.ref()),
+ bs::error_code{});
+ l.unlock();
+ w.wait();
+}
+
+void Objecter::_get_latest_version(epoch_t oldest, epoch_t newest,
+ std::unique_ptr<OpCompletion> fin,
+ std::unique_lock<ceph::shared_mutex>&& l)
+{
+ ceph_assert(fin);
+ if (osdmap->get_epoch() >= newest) {
+ ldout(cct, 10) << __func__ << " latest " << newest << ", have it" << dendl;
+ l.unlock();
+ ca::defer(std::move(fin), bs::error_code{});
+ } else {
+ ldout(cct, 10) << __func__ << " latest " << newest << ", waiting" << dendl;
+ _wait_for_new_map(std::move(fin), newest, bs::error_code{});
+ l.unlock();
+ }
+}
+
+void Objecter::maybe_request_map()
+{
+ shared_lock rl(rwlock);
+ _maybe_request_map();
+}
+
+void Objecter::_maybe_request_map()
+{
+ // rwlock is locked
+ int flag = 0;
+ if (_osdmap_full_flag()
+ || osdmap->test_flag(CEPH_OSDMAP_PAUSERD)
+ || osdmap->test_flag(CEPH_OSDMAP_PAUSEWR)) {
+ ldout(cct, 10) << "_maybe_request_map subscribing (continuous) to next "
+ "osd map (FULL flag is set)" << dendl;
+ } else {
+ ldout(cct, 10)
+ << "_maybe_request_map subscribing (onetime) to next osd map" << dendl;
+ flag = CEPH_SUBSCRIBE_ONETIME;
+ }
+ epoch_t epoch = osdmap->get_epoch() ? osdmap->get_epoch()+1 : 0;
+ if (monc->sub_want("osdmap", epoch, flag)) {
+ monc->renew_subs();
+ }
+}
+
+void Objecter::_wait_for_new_map(std::unique_ptr<OpCompletion> c, epoch_t epoch,
+ bs::error_code ec)
+{
+ // rwlock is locked unique
+ waiting_for_map[epoch].emplace_back(std::move(c), ec);
+ _maybe_request_map();
+}
+
+
+/**
+ * Use this together with wait_for_map: this is a pre-check to avoid
+ * allocating a Context for wait_for_map if we can see that we
+ * definitely already have the epoch.
+ *
+ * This does *not* replace the need to handle the return value of
+ * wait_for_map: just because we don't have it in this pre-check
+ * doesn't mean we won't have it when calling back into wait_for_map,
+ * since the objecter lock is dropped in between.
+ */
+bool Objecter::have_map(const epoch_t epoch)
+{
+ shared_lock rl(rwlock);
+ if (osdmap->get_epoch() >= epoch) {
+ return true;
+ } else {
+ return false;
+ }
+}
+
+void Objecter::_kick_requests(OSDSession *session,
+ map<uint64_t, LingerOp *>& lresend)
+{
+ // rwlock is locked unique
+
+ // clear backoffs
+ session->backoffs.clear();
+ session->backoffs_by_id.clear();
+
+ // resend ops
+ map<ceph_tid_t,Op*> resend; // resend in tid order
+ for (auto p = session->ops.begin(); p != session->ops.end();) {
+ Op *op = p->second;
+ ++p;
+ if (op->should_resend) {
+ if (!op->target.paused)
+ resend[op->tid] = op;
+ } else {
+ _op_cancel_map_check(op);
+ _cancel_linger_op(op);
+ }
+ }
+
+ logger->inc(l_osdc_op_resend, resend.size());
+ while (!resend.empty()) {
+ _send_op(resend.begin()->second);
+ resend.erase(resend.begin());
+ }
+
+ // resend lingers
+ logger->inc(l_osdc_linger_resend, session->linger_ops.size());
+ for (auto j = session->linger_ops.begin();
+ j != session->linger_ops.end(); ++j) {
+ LingerOp *op = j->second;
+ op->get();
+ ceph_assert(lresend.count(j->first) == 0);
+ lresend[j->first] = op;
+ }
+
+ // resend commands
+ logger->inc(l_osdc_command_resend, session->command_ops.size());
+ map<uint64_t,CommandOp*> cresend; // resend in order
+ for (auto k = session->command_ops.begin();
+ k != session->command_ops.end(); ++k) {
+ cresend[k->first] = k->second;
+ }
+ while (!cresend.empty()) {
+ _send_command(cresend.begin()->second);
+ cresend.erase(cresend.begin());
+ }
+}
+
+void Objecter::_linger_ops_resend(map<uint64_t, LingerOp *>& lresend,
+ unique_lock<ceph::shared_mutex>& ul)
+{
+ ceph_assert(ul.owns_lock());
+ shunique_lock sul(std::move(ul));
+ while (!lresend.empty()) {
+ LingerOp *op = lresend.begin()->second;
+ if (!op->canceled) {
+ _send_linger(op, sul);
+ }
+ op->put();
+ lresend.erase(lresend.begin());
+ }
+ ul = sul.release_to_unique();
+}
+
+void Objecter::start_tick()
+{
+ ceph_assert(tick_event == 0);
+ tick_event =
+ timer.add_event(ceph::make_timespan(cct->_conf->objecter_tick_interval),
+ &Objecter::tick, this);
+}
+
+void Objecter::tick()
+{
+ shared_lock rl(rwlock);
+
+ ldout(cct, 10) << "tick" << dendl;
+
+ // we are only called by C_Tick
+ tick_event = 0;
+
+ if (!initialized) {
+ // we raced with shutdown
+ ldout(cct, 10) << __func__ << " raced with shutdown" << dendl;
+ return;
+ }
+
+ set<OSDSession*> toping;
+
+
+ // look for laggy requests
+ auto cutoff = ceph::coarse_mono_clock::now();
+ cutoff -= ceph::make_timespan(cct->_conf->objecter_timeout); // timeout
+
+ unsigned laggy_ops = 0;
+
+ for (auto siter = osd_sessions.begin();
+ siter != osd_sessions.end(); ++siter) {
+ auto s = siter->second;
+ scoped_lock l(s->lock);
+ bool found = false;
+ for (auto p = s->ops.begin(); p != s->ops.end(); ++p) {
+ auto op = p->second;
+ ceph_assert(op->session);
+ if (op->stamp < cutoff) {
+ ldout(cct, 2) << " tid " << p->first << " on osd." << op->session->osd
+ << " is laggy" << dendl;
+ found = true;
+ ++laggy_ops;
+ }
+ }
+ for (auto p = s->linger_ops.begin();
+ p != s->linger_ops.end();
+ ++p) {
+ auto op = p->second;
+ std::unique_lock wl(op->watch_lock);
+ ceph_assert(op->session);
+ ldout(cct, 10) << " pinging osd that serves lingering tid " << p->first
+ << " (osd." << op->session->osd << ")" << dendl;
+ found = true;
+ if (op->is_watch && op->registered && !op->last_error)
+ _send_linger_ping(op);
+ }
+ for (auto p = s->command_ops.begin();
+ p != s->command_ops.end();
+ ++p) {
+ auto op = p->second;
+ ceph_assert(op->session);
+ ldout(cct, 10) << " pinging osd that serves command tid " << p->first
+ << " (osd." << op->session->osd << ")" << dendl;
+ found = true;
+ }
+ if (found)
+ toping.insert(s);
+ }
+ if (num_homeless_ops || !toping.empty()) {
+ _maybe_request_map();
+ }
+
+ logger->set(l_osdc_op_laggy, laggy_ops);
+ logger->set(l_osdc_osd_laggy, toping.size());
+
+ if (!toping.empty()) {
+ // send a ping to these osds, to ensure we detect any session resets
+ // (osd reply message policy is lossy)
+ for (auto i = toping.begin(); i != toping.end(); ++i) {
+ (*i)->con->send_message(new MPing);
+ }
+ }
+
+ // Make sure we don't reschedule if we wake up after shutdown
+ if (initialized) {
+ tick_event = timer.reschedule_me(ceph::make_timespan(
+ cct->_conf->objecter_tick_interval));
+ }
+}
+
+void Objecter::resend_mon_ops()
+{
+ unique_lock wl(rwlock);
+
+ ldout(cct, 10) << "resend_mon_ops" << dendl;
+
+ for (auto p = poolstat_ops.begin(); p != poolstat_ops.end(); ++p) {
+ _poolstat_submit(p->second);
+ logger->inc(l_osdc_poolstat_resend);
+ }
+
+ for (auto p = statfs_ops.begin(); p != statfs_ops.end(); ++p) {
+ _fs_stats_submit(p->second);
+ logger->inc(l_osdc_statfs_resend);
+ }
+
+ for (auto p = pool_ops.begin(); p != pool_ops.end(); ++p) {
+ _pool_op_submit(p->second);
+ logger->inc(l_osdc_poolop_resend);
+ }
+
+ for (auto p = check_latest_map_ops.begin();
+ p != check_latest_map_ops.end();
+ ++p) {
+ monc->get_version("osdmap", CB_Op_Map_Latest(this, p->second->tid));
+ }
+
+ for (auto p = check_latest_map_lingers.begin();
+ p != check_latest_map_lingers.end();
+ ++p) {
+ monc->get_version("osdmap", CB_Linger_Map_Latest(this, p->second->linger_id));
+ }
+
+ for (auto p = check_latest_map_commands.begin();
+ p != check_latest_map_commands.end();
+ ++p) {
+ monc->get_version("osdmap", CB_Command_Map_Latest(this, p->second->tid));
+ }
+}
+
+// read | write ---------------------------
+
+void Objecter::op_submit(Op *op, ceph_tid_t *ptid, int *ctx_budget)
+{
+ shunique_lock rl(rwlock, ceph::acquire_shared);
+ ceph_tid_t tid = 0;
+ if (!ptid)
+ ptid = &tid;
+ op->trace.event("op submit");
+ _op_submit_with_budget(op, rl, ptid, ctx_budget);
+}
+
+void Objecter::_op_submit_with_budget(Op *op,
+ shunique_lock<ceph::shared_mutex>& sul,
+ ceph_tid_t *ptid,
+ int *ctx_budget)
+{
+ ceph_assert(initialized);
+
+ ceph_assert(op->ops.size() == op->out_bl.size());
+ ceph_assert(op->ops.size() == op->out_rval.size());
+ ceph_assert(op->ops.size() == op->out_handler.size());
+
+ // throttle. before we look at any state, because
+ // _take_op_budget() may drop our lock while it blocks.
+ if (!op->ctx_budgeted || (ctx_budget && (*ctx_budget == -1))) {
+ int op_budget = _take_op_budget(op, sul);
+ // take and pass out the budget for the first OP
+ // in the context session
+ if (ctx_budget && (*ctx_budget == -1)) {
+ *ctx_budget = op_budget;
+ }
+ }
+
+ if (osd_timeout > timespan(0)) {
+ if (op->tid == 0)
+ op->tid = ++last_tid;
+ auto tid = op->tid;
+ op->ontimeout = timer.add_event(osd_timeout,
+ [this, tid]() {
+ op_cancel(tid, -ETIMEDOUT); });
+ }
+
+ _op_submit(op, sul, ptid);
+}
+
+void Objecter::_send_op_account(Op *op)
+{
+ inflight_ops++;
+
+ // add to gather set(s)
+ if (op->has_completion()) {
+ num_in_flight++;
+ } else {
+ ldout(cct, 20) << " note: not requesting reply" << dendl;
+ }
+
+ logger->inc(l_osdc_op_active);
+ logger->inc(l_osdc_op);
+ logger->inc(l_osdc_oplen_avg, op->ops.size());
+
+ if ((op->target.flags & (CEPH_OSD_FLAG_READ | CEPH_OSD_FLAG_WRITE)) ==
+ (CEPH_OSD_FLAG_READ|CEPH_OSD_FLAG_WRITE))
+ logger->inc(l_osdc_op_rmw);
+ else if (op->target.flags & CEPH_OSD_FLAG_WRITE)
+ logger->inc(l_osdc_op_w);
+ else if (op->target.flags & CEPH_OSD_FLAG_READ)
+ logger->inc(l_osdc_op_r);
+
+ if (op->target.flags & CEPH_OSD_FLAG_PGOP)
+ logger->inc(l_osdc_op_pg);
+
+ for (auto p = op->ops.begin(); p != op->ops.end(); ++p) {
+ int code = l_osdc_osdop_other;
+ switch (p->op.op) {
+ case CEPH_OSD_OP_STAT: code = l_osdc_osdop_stat; break;
+ case CEPH_OSD_OP_CREATE: code = l_osdc_osdop_create; break;
+ case CEPH_OSD_OP_READ: code = l_osdc_osdop_read; break;
+ case CEPH_OSD_OP_WRITE: code = l_osdc_osdop_write; break;
+ case CEPH_OSD_OP_WRITEFULL: code = l_osdc_osdop_writefull; break;
+ case CEPH_OSD_OP_WRITESAME: code = l_osdc_osdop_writesame; break;
+ case CEPH_OSD_OP_APPEND: code = l_osdc_osdop_append; break;
+ case CEPH_OSD_OP_ZERO: code = l_osdc_osdop_zero; break;
+ case CEPH_OSD_OP_TRUNCATE: code = l_osdc_osdop_truncate; break;
+ case CEPH_OSD_OP_DELETE: code = l_osdc_osdop_delete; break;
+ case CEPH_OSD_OP_MAPEXT: code = l_osdc_osdop_mapext; break;
+ case CEPH_OSD_OP_SPARSE_READ: code = l_osdc_osdop_sparse_read; break;
+ case CEPH_OSD_OP_GETXATTR: code = l_osdc_osdop_getxattr; break;
+ case CEPH_OSD_OP_SETXATTR: code = l_osdc_osdop_setxattr; break;
+ case CEPH_OSD_OP_CMPXATTR: code = l_osdc_osdop_cmpxattr; break;
+ case CEPH_OSD_OP_RMXATTR: code = l_osdc_osdop_rmxattr; break;
+ case CEPH_OSD_OP_RESETXATTRS: code = l_osdc_osdop_resetxattrs; break;
+
+ // OMAP read operations
+ case CEPH_OSD_OP_OMAPGETVALS:
+ case CEPH_OSD_OP_OMAPGETKEYS:
+ case CEPH_OSD_OP_OMAPGETHEADER:
+ case CEPH_OSD_OP_OMAPGETVALSBYKEYS:
+ case CEPH_OSD_OP_OMAP_CMP: code = l_osdc_osdop_omap_rd; break;
+
+ // OMAP write operations
+ case CEPH_OSD_OP_OMAPSETVALS:
+ case CEPH_OSD_OP_OMAPSETHEADER: code = l_osdc_osdop_omap_wr; break;
+
+ // OMAP del operations
+ case CEPH_OSD_OP_OMAPCLEAR:
+ case CEPH_OSD_OP_OMAPRMKEYS: code = l_osdc_osdop_omap_del; break;
+
+ case CEPH_OSD_OP_CALL: code = l_osdc_osdop_call; break;
+ case CEPH_OSD_OP_WATCH: code = l_osdc_osdop_watch; break;
+ case CEPH_OSD_OP_NOTIFY: code = l_osdc_osdop_notify; break;
+ }
+ if (code)
+ logger->inc(code);
+ }
+}
+
+void Objecter::_op_submit(Op *op, shunique_lock<ceph::shared_mutex>& sul, ceph_tid_t *ptid)
+{
+ // rwlock is locked
+
+ ldout(cct, 10) << __func__ << " op " << op << dendl;
+
+ // pick target
+ ceph_assert(op->session == NULL);
+ OSDSession *s = NULL;
+
+ bool check_for_latest_map = false;
+ int r = _calc_target(&op->target, nullptr);
+ switch(r) {
+ case RECALC_OP_TARGET_POOL_DNE:
+ check_for_latest_map = true;
+ break;
+ case RECALC_OP_TARGET_POOL_EIO:
+ if (op->has_completion()) {
+ op->complete(osdc_errc::pool_eio, -EIO);
+ }
+ return;
+ }
+
+ // Try to get a session, including a retry if we need to take write lock
+ r = _get_session(op->target.osd, &s, sul);
+ if (r == -EAGAIN ||
+ (check_for_latest_map && sul.owns_lock_shared()) ||
+ cct->_conf->objecter_debug_inject_relock_delay) {
+ epoch_t orig_epoch = osdmap->get_epoch();
+ sul.unlock();
+ if (cct->_conf->objecter_debug_inject_relock_delay) {
+ sleep(1);
+ }
+ sul.lock();
+ if (orig_epoch != osdmap->get_epoch()) {
+ // map changed; recalculate mapping
+ ldout(cct, 10) << __func__ << " relock raced with osdmap, recalc target"
+ << dendl;
+ check_for_latest_map = _calc_target(&op->target, nullptr)
+ == RECALC_OP_TARGET_POOL_DNE;
+ if (s) {
+ put_session(s);
+ s = NULL;
+ r = -EAGAIN;
+ }
+ }
+ }
+ if (r == -EAGAIN) {
+ ceph_assert(s == NULL);
+ r = _get_session(op->target.osd, &s, sul);
+ }
+ ceph_assert(r == 0);
+ ceph_assert(s); // may be homeless
+
+ _send_op_account(op);
+
+ // send?
+
+ ceph_assert(op->target.flags & (CEPH_OSD_FLAG_READ|CEPH_OSD_FLAG_WRITE));
+
+ bool need_send = false;
+ if (op->target.paused) {
+ ldout(cct, 10) << " tid " << op->tid << " op " << op << " is paused"
+ << dendl;
+ _maybe_request_map();
+ } else if (!s->is_homeless()) {
+ need_send = true;
+ } else {
+ _maybe_request_map();
+ }
+
+ unique_lock sl(s->lock);
+ if (op->tid == 0)
+ op->tid = ++last_tid;
+
+ ldout(cct, 10) << "_op_submit oid " << op->target.base_oid
+ << " '" << op->target.base_oloc << "' '"
+ << op->target.target_oloc << "' " << op->ops << " tid "
+ << op->tid << " osd." << (!s->is_homeless() ? s->osd : -1)
+ << dendl;
+
+ _session_op_assign(s, op);
+
+ if (need_send) {
+ _send_op(op);
+ }
+
+ // Last chance to touch Op here, after giving up session lock it can
+ // be freed at any time by response handler.
+ ceph_tid_t tid = op->tid;
+ if (check_for_latest_map) {
+ _send_op_map_check(op);
+ }
+ if (ptid)
+ *ptid = tid;
+ op = NULL;
+
+ sl.unlock();
+ put_session(s);
+
+ ldout(cct, 5) << num_in_flight << " in flight" << dendl;
+}
+
+int Objecter::op_cancel(OSDSession *s, ceph_tid_t tid, int r)
+{
+ ceph_assert(initialized);
+
+ unique_lock sl(s->lock);
+
+ auto p = s->ops.find(tid);
+ if (p == s->ops.end()) {
+ ldout(cct, 10) << __func__ << " tid " << tid << " dne in session "
+ << s->osd << dendl;
+ return -ENOENT;
+ }
+
+#if 0
+ if (s->con) {
+ ldout(cct, 20) << " revoking rx ceph::buffer for " << tid
+ << " on " << s->con << dendl;
+ s->con->revoke_rx_buffer(tid);
+ }
+#endif
+
+ ldout(cct, 10) << __func__ << " tid " << tid << " in session " << s->osd
+ << dendl;
+ Op *op = p->second;
+ if (op->has_completion()) {
+ num_in_flight--;
+ op->complete(osdcode(r), r);
+ }
+ _op_cancel_map_check(op);
+ _finish_op(op, r);
+ sl.unlock();
+
+ return 0;
+}
+
+int Objecter::op_cancel(ceph_tid_t tid, int r)
+{
+ int ret = 0;
+
+ unique_lock wl(rwlock);
+ ret = _op_cancel(tid, r);
+
+ return ret;
+}
+
+int Objecter::op_cancel(const vector<ceph_tid_t>& tids, int r)
+{
+ unique_lock wl(rwlock);
+ ldout(cct,10) << __func__ << " " << tids << dendl;
+ for (auto tid : tids) {
+ _op_cancel(tid, r);
+ }
+ return 0;
+}
+
+int Objecter::_op_cancel(ceph_tid_t tid, int r)
+{
+ int ret = 0;
+
+ ldout(cct, 5) << __func__ << ": cancelling tid " << tid << " r=" << r
+ << dendl;
+
+start:
+
+ for (auto siter = osd_sessions.begin();
+ siter != osd_sessions.end(); ++siter) {
+ OSDSession *s = siter->second;
+ shared_lock sl(s->lock);
+ if (s->ops.find(tid) != s->ops.end()) {
+ sl.unlock();
+ ret = op_cancel(s, tid, r);
+ if (ret == -ENOENT) {
+ /* oh no! raced, maybe tid moved to another session, restarting */
+ goto start;
+ }
+ return ret;
+ }
+ }
+
+ ldout(cct, 5) << __func__ << ": tid " << tid
+ << " not found in live sessions" << dendl;
+
+ // Handle case where the op is in homeless session
+ shared_lock sl(homeless_session->lock);
+ if (homeless_session->ops.find(tid) != homeless_session->ops.end()) {
+ sl.unlock();
+ ret = op_cancel(homeless_session, tid, r);
+ if (ret == -ENOENT) {
+ /* oh no! raced, maybe tid moved to another session, restarting */
+ goto start;
+ } else {
+ return ret;
+ }
+ } else {
+ sl.unlock();
+ }
+
+ ldout(cct, 5) << __func__ << ": tid " << tid
+ << " not found in homeless session" << dendl;
+
+ return ret;
+}
+
+
+epoch_t Objecter::op_cancel_writes(int r, int64_t pool)
+{
+ unique_lock wl(rwlock);
+
+ std::vector<ceph_tid_t> to_cancel;
+ bool found = false;
+
+ for (auto siter = osd_sessions.begin();
+ siter != osd_sessions.end(); ++siter) {
+ OSDSession *s = siter->second;
+ shared_lock sl(s->lock);
+ for (auto op_i = s->ops.begin();
+ op_i != s->ops.end(); ++op_i) {
+ if (op_i->second->target.flags & CEPH_OSD_FLAG_WRITE
+ && (pool == -1 || op_i->second->target.target_oloc.pool == pool)) {
+ to_cancel.push_back(op_i->first);
+ }
+ }
+ sl.unlock();
+
+ for (auto titer = to_cancel.begin(); titer != to_cancel.end(); ++titer) {
+ int cancel_result = op_cancel(s, *titer, r);
+ // We hold rwlock across search and cancellation, so cancels
+ // should always succeed
+ ceph_assert(cancel_result == 0);
+ }
+ if (!found && to_cancel.size())
+ found = true;
+ to_cancel.clear();
+ }
+
+ const epoch_t epoch = osdmap->get_epoch();
+
+ wl.unlock();
+
+ if (found) {
+ return epoch;
+ } else {
+ return -1;
+ }
+}
+
+bool Objecter::is_pg_changed(
+ int oldprimary,
+ const vector<int>& oldacting,
+ int newprimary,
+ const vector<int>& newacting,
+ bool any_change)
+{
+ if (OSDMap::primary_changed_broken( // https://tracker.ceph.com/issues/43213
+ oldprimary,
+ oldacting,
+ newprimary,
+ newacting))
+ return true;
+ if (any_change && oldacting != newacting)
+ return true;
+ return false; // same primary (tho replicas may have changed)
+}
+
+bool Objecter::target_should_be_paused(op_target_t *t)
+{
+ const pg_pool_t *pi = osdmap->get_pg_pool(t->base_oloc.pool);
+ bool pauserd = osdmap->test_flag(CEPH_OSDMAP_PAUSERD);
+ bool pausewr = osdmap->test_flag(CEPH_OSDMAP_PAUSEWR) ||
+ (t->respects_full() && (_osdmap_full_flag() || _osdmap_pool_full(*pi)));
+
+ return (t->flags & CEPH_OSD_FLAG_READ && pauserd) ||
+ (t->flags & CEPH_OSD_FLAG_WRITE && pausewr) ||
+ (osdmap->get_epoch() < epoch_barrier);
+}
+
+/**
+ * Locking public accessor for _osdmap_full_flag
+ */
+bool Objecter::osdmap_full_flag() const
+{
+ shared_lock rl(rwlock);
+
+ return _osdmap_full_flag();
+}
+
+bool Objecter::osdmap_pool_full(const int64_t pool_id) const
+{
+ shared_lock rl(rwlock);
+
+ if (_osdmap_full_flag()) {
+ return true;
+ }
+
+ return _osdmap_pool_full(pool_id);
+}
+
+bool Objecter::_osdmap_pool_full(const int64_t pool_id) const
+{
+ const pg_pool_t *pool = osdmap->get_pg_pool(pool_id);
+ if (pool == NULL) {
+ ldout(cct, 4) << __func__ << ": DNE pool " << pool_id << dendl;
+ return false;
+ }
+
+ return _osdmap_pool_full(*pool);
+}
+
+bool Objecter::_osdmap_has_pool_full() const
+{
+ for (auto it = osdmap->get_pools().begin();
+ it != osdmap->get_pools().end(); ++it) {
+ if (_osdmap_pool_full(it->second))
+ return true;
+ }
+ return false;
+}
+
+/**
+ * Wrapper around osdmap->test_flag for special handling of the FULL flag.
+ */
+bool Objecter::_osdmap_full_flag() const
+{
+ // Ignore the FULL flag if the caller does not have honor_osdmap_full
+ return osdmap->test_flag(CEPH_OSDMAP_FULL) && honor_pool_full;
+}
+
+void Objecter::update_pool_full_map(map<int64_t, bool>& pool_full_map)
+{
+ for (map<int64_t, pg_pool_t>::const_iterator it
+ = osdmap->get_pools().begin();
+ it != osdmap->get_pools().end(); ++it) {
+ if (pool_full_map.find(it->first) == pool_full_map.end()) {
+ pool_full_map[it->first] = _osdmap_pool_full(it->second);
+ } else {
+ pool_full_map[it->first] = _osdmap_pool_full(it->second) ||
+ pool_full_map[it->first];
+ }
+ }
+}
+
+int64_t Objecter::get_object_hash_position(int64_t pool, const string& key,
+ const string& ns)
+{
+ shared_lock rl(rwlock);
+ const pg_pool_t *p = osdmap->get_pg_pool(pool);
+ if (!p)
+ return -ENOENT;
+ return p->hash_key(key, ns);
+}
+
+int64_t Objecter::get_object_pg_hash_position(int64_t pool, const string& key,
+ const string& ns)
+{
+ shared_lock rl(rwlock);
+ const pg_pool_t *p = osdmap->get_pg_pool(pool);
+ if (!p)
+ return -ENOENT;
+ return p->raw_hash_to_pg(p->hash_key(key, ns));
+}
+
+void Objecter::_prune_snapc(
+ const mempool::osdmap::map<int64_t,
+ snap_interval_set_t>& new_removed_snaps,
+ Op *op)
+{
+ bool match = false;
+ auto i = new_removed_snaps.find(op->target.base_pgid.pool());
+ if (i != new_removed_snaps.end()) {
+ for (auto s : op->snapc.snaps) {
+ if (i->second.contains(s)) {
+ match = true;
+ break;
+ }
+ }
+ if (match) {
+ vector<snapid_t> new_snaps;
+ for (auto s : op->snapc.snaps) {
+ if (!i->second.contains(s)) {
+ new_snaps.push_back(s);
+ }
+ }
+ op->snapc.snaps.swap(new_snaps);
+ ldout(cct,10) << __func__ << " op " << op->tid << " snapc " << op->snapc
+ << " (was " << new_snaps << ")" << dendl;
+ }
+ }
+}
+
+int Objecter::_calc_target(op_target_t *t, Connection *con, bool any_change)
+{
+ // rwlock is locked
+ bool is_read = t->flags & CEPH_OSD_FLAG_READ;
+ bool is_write = t->flags & CEPH_OSD_FLAG_WRITE;
+ t->epoch = osdmap->get_epoch();
+ ldout(cct,20) << __func__ << " epoch " << t->epoch
+ << " base " << t->base_oid << " " << t->base_oloc
+ << " precalc_pgid " << (int)t->precalc_pgid
+ << " pgid " << t->base_pgid
+ << (is_read ? " is_read" : "")
+ << (is_write ? " is_write" : "")
+ << dendl;
+
+ const pg_pool_t *pi = osdmap->get_pg_pool(t->base_oloc.pool);
+ if (!pi) {
+ t->osd = -1;
+ return RECALC_OP_TARGET_POOL_DNE;
+ }
+
+ if (pi->has_flag(pg_pool_t::FLAG_EIO)) {
+ return RECALC_OP_TARGET_POOL_EIO;
+ }
+
+ ldout(cct,30) << __func__ << " base pi " << pi
+ << " pg_num " << pi->get_pg_num() << dendl;
+
+ bool force_resend = false;
+ if (osdmap->get_epoch() == pi->last_force_op_resend) {
+ if (t->last_force_resend < pi->last_force_op_resend) {
+ t->last_force_resend = pi->last_force_op_resend;
+ force_resend = true;
+ } else if (t->last_force_resend == 0) {
+ force_resend = true;
+ }
+ }
+
+ // apply tiering
+ t->target_oid = t->base_oid;
+ t->target_oloc = t->base_oloc;
+ if ((t->flags & CEPH_OSD_FLAG_IGNORE_OVERLAY) == 0) {
+ if (is_read && pi->has_read_tier())
+ t->target_oloc.pool = pi->read_tier;
+ if (is_write && pi->has_write_tier())
+ t->target_oloc.pool = pi->write_tier;
+ pi = osdmap->get_pg_pool(t->target_oloc.pool);
+ if (!pi) {
+ t->osd = -1;
+ return RECALC_OP_TARGET_POOL_DNE;
+ }
+ }
+
+ pg_t pgid;
+ if (t->precalc_pgid) {
+ ceph_assert(t->flags & CEPH_OSD_FLAG_IGNORE_OVERLAY);
+ ceph_assert(t->base_oid.name.empty()); // make sure this is a pg op
+ ceph_assert(t->base_oloc.pool == (int64_t)t->base_pgid.pool());
+ pgid = t->base_pgid;
+ } else {
+ int ret = osdmap->object_locator_to_pg(t->target_oid, t->target_oloc,
+ pgid);
+ if (ret == -ENOENT) {
+ t->osd = -1;
+ return RECALC_OP_TARGET_POOL_DNE;
+ }
+ }
+ ldout(cct,20) << __func__ << " target " << t->target_oid << " "
+ << t->target_oloc << " -> pgid " << pgid << dendl;
+ ldout(cct,30) << __func__ << " target pi " << pi
+ << " pg_num " << pi->get_pg_num() << dendl;
+ t->pool_ever_existed = true;
+
+ int size = pi->size;
+ int min_size = pi->min_size;
+ unsigned pg_num = pi->get_pg_num();
+ unsigned pg_num_mask = pi->get_pg_num_mask();
+ unsigned pg_num_pending = pi->get_pg_num_pending();
+ int up_primary, acting_primary;
+ vector<int> up, acting;
+ ps_t actual_ps = ceph_stable_mod(pgid.ps(), pg_num, pg_num_mask);
+ pg_t actual_pgid(actual_ps, pgid.pool());
+ if (!lookup_pg_mapping(actual_pgid, osdmap->get_epoch(), &up, &up_primary,
+ &acting, &acting_primary)) {
+ osdmap->pg_to_up_acting_osds(actual_pgid, &up, &up_primary,
+ &acting, &acting_primary);
+ pg_mapping_t pg_mapping(osdmap->get_epoch(),
+ up, up_primary, acting, acting_primary);
+ update_pg_mapping(actual_pgid, std::move(pg_mapping));
+ }
+ bool sort_bitwise = osdmap->test_flag(CEPH_OSDMAP_SORTBITWISE);
+ bool recovery_deletes = osdmap->test_flag(CEPH_OSDMAP_RECOVERY_DELETES);
+ unsigned prev_seed = ceph_stable_mod(pgid.ps(), t->pg_num, t->pg_num_mask);
+ pg_t prev_pgid(prev_seed, pgid.pool());
+ if (any_change && PastIntervals::is_new_interval(
+ t->acting_primary,
+ acting_primary,
+ t->acting,
+ acting,
+ t->up_primary,
+ up_primary,
+ t->up,
+ up,
+ t->size,
+ size,
+ t->min_size,
+ min_size,
+ t->pg_num,
+ pg_num,
+ t->pg_num_pending,
+ pg_num_pending,
+ t->sort_bitwise,
+ sort_bitwise,
+ t->recovery_deletes,
+ recovery_deletes,
+ t->peering_crush_bucket_count,
+ pi->peering_crush_bucket_count,
+ t->peering_crush_bucket_target,
+ pi->peering_crush_bucket_target,
+ t->peering_crush_bucket_barrier,
+ pi->peering_crush_bucket_barrier,
+ t->peering_crush_mandatory_member,
+ pi->peering_crush_mandatory_member,
+ prev_pgid)) {
+ force_resend = true;
+ }
+
+ bool unpaused = false;
+ bool should_be_paused = target_should_be_paused(t);
+ if (t->paused && !should_be_paused) {
+ unpaused = true;
+ }
+ if (t->paused != should_be_paused) {
+ ldout(cct, 10) << __func__ << " paused " << t->paused
+ << " -> " << should_be_paused << dendl;
+ t->paused = should_be_paused;
+ }
+
+ bool legacy_change =
+ t->pgid != pgid ||
+ is_pg_changed(
+ t->acting_primary, t->acting, acting_primary, acting,
+ t->used_replica || any_change);
+ bool split_or_merge = false;
+ if (t->pg_num) {
+ split_or_merge =
+ prev_pgid.is_split(t->pg_num, pg_num, nullptr) ||
+ prev_pgid.is_merge_source(t->pg_num, pg_num, nullptr) ||
+ prev_pgid.is_merge_target(t->pg_num, pg_num);
+ }
+
+ if (legacy_change || split_or_merge || force_resend) {
+ t->pgid = pgid;
+ t->acting = std::move(acting);
+ t->acting_primary = acting_primary;
+ t->up_primary = up_primary;
+ t->up = std::move(up);
+ t->size = size;
+ t->min_size = min_size;
+ t->pg_num = pg_num;
+ t->pg_num_mask = pg_num_mask;
+ t->pg_num_pending = pg_num_pending;
+ spg_t spgid(actual_pgid);
+ if (pi->is_erasure()) {
+ for (uint8_t i = 0; i < t->acting.size(); ++i) {
+ if (t->acting[i] == acting_primary) {
+ spgid.reset_shard(shard_id_t(i));
+ break;
+ }
+ }
+ }
+ t->actual_pgid = spgid;
+ t->sort_bitwise = sort_bitwise;
+ t->recovery_deletes = recovery_deletes;
+ t->peering_crush_bucket_count = pi->peering_crush_bucket_count;
+ t->peering_crush_bucket_target = pi->peering_crush_bucket_target;
+ t->peering_crush_bucket_barrier = pi->peering_crush_bucket_barrier;
+ t->peering_crush_mandatory_member = pi->peering_crush_mandatory_member;
+ ldout(cct, 10) << __func__ << " "
+ << " raw pgid " << pgid << " -> actual " << t->actual_pgid
+ << " acting " << t->acting
+ << " primary " << acting_primary << dendl;
+ t->used_replica = false;
+ if ((t->flags & (CEPH_OSD_FLAG_BALANCE_READS |
+ CEPH_OSD_FLAG_LOCALIZE_READS)) &&
+ !is_write && pi->is_replicated() && t->acting.size() > 1) {
+ int osd;
+ ceph_assert(is_read && t->acting[0] == acting_primary);
+ if (t->flags & CEPH_OSD_FLAG_BALANCE_READS) {
+ int p = rand() % t->acting.size();
+ if (p)
+ t->used_replica = true;
+ osd = t->acting[p];
+ ldout(cct, 10) << " chose random osd." << osd << " of " << t->acting
+ << dendl;
+ } else {
+ // look for a local replica. prefer the primary if the
+ // distance is the same.
+ int best = -1;
+ int best_locality = 0;
+ for (unsigned i = 0; i < t->acting.size(); ++i) {
+ int locality = osdmap->crush->get_common_ancestor_distance(
+ cct, t->acting[i], crush_location);
+ ldout(cct, 20) << __func__ << " localize: rank " << i
+ << " osd." << t->acting[i]
+ << " locality " << locality << dendl;
+ if (i == 0 ||
+ (locality >= 0 && best_locality >= 0 &&
+ locality < best_locality) ||
+ (best_locality < 0 && locality >= 0)) {
+ best = i;
+ best_locality = locality;
+ if (i)
+ t->used_replica = true;
+ }
+ }
+ ceph_assert(best >= 0);
+ osd = t->acting[best];
+ }
+ t->osd = osd;
+ } else {
+ t->osd = acting_primary;
+ }
+ }
+ if (legacy_change || unpaused || force_resend) {
+ return RECALC_OP_TARGET_NEED_RESEND;
+ }
+ if (split_or_merge &&
+ (osdmap->require_osd_release >= ceph_release_t::luminous ||
+ HAVE_FEATURE(osdmap->get_xinfo(acting_primary).features,
+ RESEND_ON_SPLIT))) {
+ return RECALC_OP_TARGET_NEED_RESEND;
+ }
+ return RECALC_OP_TARGET_NO_ACTION;
+}
+
+int Objecter::_map_session(op_target_t *target, OSDSession **s,
+ shunique_lock<ceph::shared_mutex>& sul)
+{
+ _calc_target(target, nullptr);
+ return _get_session(target->osd, s, sul);
+}
+
+void Objecter::_session_op_assign(OSDSession *to, Op *op)
+{
+ // to->lock is locked
+ ceph_assert(op->session == NULL);
+ ceph_assert(op->tid);
+
+ get_session(to);
+ op->session = to;
+ to->ops[op->tid] = op;
+
+ if (to->is_homeless()) {
+ num_homeless_ops++;
+ }
+
+ ldout(cct, 15) << __func__ << " " << to->osd << " " << op->tid << dendl;
+}
+
+void Objecter::_session_op_remove(OSDSession *from, Op *op)
+{
+ ceph_assert(op->session == from);
+ // from->lock is locked
+
+ if (from->is_homeless()) {
+ num_homeless_ops--;
+ }
+
+ from->ops.erase(op->tid);
+ put_session(from);
+ op->session = NULL;
+
+ ldout(cct, 15) << __func__ << " " << from->osd << " " << op->tid << dendl;
+}
+
+void Objecter::_session_linger_op_assign(OSDSession *to, LingerOp *op)
+{
+ // to lock is locked unique
+ ceph_assert(op->session == NULL);
+
+ if (to->is_homeless()) {
+ num_homeless_ops++;
+ }
+
+ get_session(to);
+ op->session = to;
+ to->linger_ops[op->linger_id] = op;
+
+ ldout(cct, 15) << __func__ << " " << to->osd << " " << op->linger_id
+ << dendl;
+}
+
+void Objecter::_session_linger_op_remove(OSDSession *from, LingerOp *op)
+{
+ ceph_assert(from == op->session);
+ // from->lock is locked unique
+
+ if (from->is_homeless()) {
+ num_homeless_ops--;
+ }
+
+ from->linger_ops.erase(op->linger_id);
+ put_session(from);
+ op->session = NULL;
+
+ ldout(cct, 15) << __func__ << " " << from->osd << " " << op->linger_id
+ << dendl;
+}
+
+void Objecter::_session_command_op_remove(OSDSession *from, CommandOp *op)
+{
+ ceph_assert(from == op->session);
+ // from->lock is locked
+
+ if (from->is_homeless()) {
+ num_homeless_ops--;
+ }
+
+ from->command_ops.erase(op->tid);
+ put_session(from);
+ op->session = NULL;
+
+ ldout(cct, 15) << __func__ << " " << from->osd << " " << op->tid << dendl;
+}
+
+void Objecter::_session_command_op_assign(OSDSession *to, CommandOp *op)
+{
+ // to->lock is locked
+ ceph_assert(op->session == NULL);
+ ceph_assert(op->tid);
+
+ if (to->is_homeless()) {
+ num_homeless_ops++;
+ }
+
+ get_session(to);
+ op->session = to;
+ to->command_ops[op->tid] = op;
+
+ ldout(cct, 15) << __func__ << " " << to->osd << " " << op->tid << dendl;
+}
+
+int Objecter::_recalc_linger_op_target(LingerOp *linger_op,
+ shunique_lock<ceph::shared_mutex>& sul)
+{
+ // rwlock is locked unique
+
+ int r = _calc_target(&linger_op->target, nullptr, true);
+ if (r == RECALC_OP_TARGET_NEED_RESEND) {
+ ldout(cct, 10) << "recalc_linger_op_target tid " << linger_op->linger_id
+ << " pgid " << linger_op->target.pgid
+ << " acting " << linger_op->target.acting << dendl;
+
+ OSDSession *s = NULL;
+ r = _get_session(linger_op->target.osd, &s, sul);
+ ceph_assert(r == 0);
+
+ if (linger_op->session != s) {
+ // NB locking two sessions (s and linger_op->session) at the
+ // same time here is only safe because we are the only one that
+ // takes two, and we are holding rwlock for write. We use
+ // std::shared_mutex in OSDSession because lockdep doesn't know
+ // that.
+ unique_lock sl(s->lock);
+ _session_linger_op_remove(linger_op->session, linger_op);
+ _session_linger_op_assign(s, linger_op);
+ }
+
+ put_session(s);
+ return RECALC_OP_TARGET_NEED_RESEND;
+ }
+ return r;
+}
+
+void Objecter::_cancel_linger_op(Op *op)
+{
+ ldout(cct, 15) << "cancel_op " << op->tid << dendl;
+
+ ceph_assert(!op->should_resend);
+ if (op->has_completion()) {
+ op->onfinish = nullptr;
+ num_in_flight--;
+ }
+
+ _finish_op(op, 0);
+}
+
+void Objecter::_finish_op(Op *op, int r)
+{
+ ldout(cct, 15) << __func__ << " " << op->tid << dendl;
+
+ // op->session->lock is locked unique or op->session is null
+
+ if (!op->ctx_budgeted && op->budget >= 0) {
+ put_op_budget_bytes(op->budget);
+ op->budget = -1;
+ }
+
+ if (op->ontimeout && r != -ETIMEDOUT)
+ timer.cancel_event(op->ontimeout);
+
+ if (op->session) {
+ _session_op_remove(op->session, op);
+ }
+
+ logger->dec(l_osdc_op_active);
+
+ ceph_assert(check_latest_map_ops.find(op->tid) == check_latest_map_ops.end());
+
+ inflight_ops--;
+
+ op->put();
+}
+
+Objecter::MOSDOp *Objecter::_prepare_osd_op(Op *op)
+{
+ // rwlock is locked
+
+ int flags = op->target.flags;
+ flags |= CEPH_OSD_FLAG_KNOWN_REDIR;
+ flags |= CEPH_OSD_FLAG_SUPPORTSPOOLEIO;
+
+ // Nothing checks this any longer, but needed for compatibility with
+ // pre-luminous osds
+ flags |= CEPH_OSD_FLAG_ONDISK;
+
+ if (!honor_pool_full)
+ flags |= CEPH_OSD_FLAG_FULL_FORCE;
+
+ op->target.paused = false;
+ op->stamp = ceph::coarse_mono_clock::now();
+
+ hobject_t hobj = op->target.get_hobj();
+ auto m = new MOSDOp(client_inc, op->tid,
+ hobj, op->target.actual_pgid,
+ osdmap->get_epoch(),
+ flags, op->features);
+
+ m->set_snapid(op->snapid);
+ m->set_snap_seq(op->snapc.seq);
+ m->set_snaps(op->snapc.snaps);
+
+ m->ops = op->ops;
+ m->set_mtime(op->mtime);
+ m->set_retry_attempt(op->attempts++);
+
+ if (!op->trace.valid() && cct->_conf->osdc_blkin_trace_all) {
+ op->trace.init("op", &trace_endpoint);
+ }
+
+ if (op->priority)
+ m->set_priority(op->priority);
+ else
+ m->set_priority(cct->_conf->osd_client_op_priority);
+
+ if (op->reqid != osd_reqid_t()) {
+ m->set_reqid(op->reqid);
+ }
+
+ logger->inc(l_osdc_op_send);
+ ssize_t sum = 0;
+ for (unsigned i = 0; i < m->ops.size(); i++) {
+ sum += m->ops[i].indata.length();
+ }
+ logger->inc(l_osdc_op_send_bytes, sum);
+
+ return m;
+}
+
+void Objecter::_send_op(Op *op)
+{
+ // rwlock is locked
+ // op->session->lock is locked
+
+ // backoff?
+ auto p = op->session->backoffs.find(op->target.actual_pgid);
+ if (p != op->session->backoffs.end()) {
+ hobject_t hoid = op->target.get_hobj();
+ auto q = p->second.lower_bound(hoid);
+ if (q != p->second.begin()) {
+ --q;
+ if (hoid >= q->second.end) {
+ ++q;
+ }
+ }
+ if (q != p->second.end()) {
+ ldout(cct, 20) << __func__ << " ? " << q->first << " [" << q->second.begin
+ << "," << q->second.end << ")" << dendl;
+ int r = cmp(hoid, q->second.begin);
+ if (r == 0 || (r > 0 && hoid < q->second.end)) {
+ ldout(cct, 10) << __func__ << " backoff " << op->target.actual_pgid
+ << " id " << q->second.id << " on " << hoid
+ << ", queuing " << op << " tid " << op->tid << dendl;
+ return;
+ }
+ }
+ }
+
+ ceph_assert(op->tid > 0);
+ MOSDOp *m = _prepare_osd_op(op);
+
+ if (op->target.actual_pgid != m->get_spg()) {
+ ldout(cct, 10) << __func__ << " " << op->tid << " pgid change from "
+ << m->get_spg() << " to " << op->target.actual_pgid
+ << ", updating and reencoding" << dendl;
+ m->set_spg(op->target.actual_pgid);
+ m->clear_payload(); // reencode
+ }
+
+ ldout(cct, 15) << "_send_op " << op->tid << " to "
+ << op->target.actual_pgid << " on osd." << op->session->osd
+ << dendl;
+
+ ConnectionRef con = op->session->con;
+ ceph_assert(con);
+
+#if 0
+ // preallocated rx ceph::buffer?
+ if (op->con) {
+ ldout(cct, 20) << " revoking rx ceph::buffer for " << op->tid << " on "
+ << op->con << dendl;
+ op->con->revoke_rx_buffer(op->tid);
+ }
+ if (op->outbl &&
+ op->ontimeout == 0 && // only post rx_buffer if no timeout; see #9582
+ op->outbl->length()) {
+ op->outbl->invalidate_crc(); // messenger writes through c_str()
+ ldout(cct, 20) << " posting rx ceph::buffer for " << op->tid << " on " << con
+ << dendl;
+ op->con = con;
+ op->con->post_rx_buffer(op->tid, *op->outbl);
+ }
+#endif
+
+ op->incarnation = op->session->incarnation;
+
+ if (op->trace.valid()) {
+ m->trace.init("op msg", nullptr, &op->trace);
+ }
+ op->session->con->send_message(m);
+}
+
+int Objecter::calc_op_budget(const bc::small_vector_base<OSDOp>& ops)
+{
+ int op_budget = 0;
+ for (auto i = ops.begin(); i != ops.end(); ++i) {
+ if (i->op.op & CEPH_OSD_OP_MODE_WR) {
+ op_budget += i->indata.length();
+ } else if (ceph_osd_op_mode_read(i->op.op)) {
+ if (ceph_osd_op_uses_extent(i->op.op)) {
+ if ((int64_t)i->op.extent.length > 0)
+ op_budget += (int64_t)i->op.extent.length;
+ } else if (ceph_osd_op_type_attr(i->op.op)) {
+ op_budget += i->op.xattr.name_len + i->op.xattr.value_len;
+ }
+ }
+ }
+ return op_budget;
+}
+
+void Objecter::_throttle_op(Op *op,
+ shunique_lock<ceph::shared_mutex>& sul,
+ int op_budget)
+{
+ ceph_assert(sul && sul.mutex() == &rwlock);
+ bool locked_for_write = sul.owns_lock();
+
+ if (!op_budget)
+ op_budget = calc_op_budget(op->ops);
+ if (!op_throttle_bytes.get_or_fail(op_budget)) { //couldn't take right now
+ sul.unlock();
+ op_throttle_bytes.get(op_budget);
+ if (locked_for_write)
+ sul.lock();
+ else
+ sul.lock_shared();
+ }
+ if (!op_throttle_ops.get_or_fail(1)) { //couldn't take right now
+ sul.unlock();
+ op_throttle_ops.get(1);
+ if (locked_for_write)
+ sul.lock();
+ else
+ sul.lock_shared();
+ }
+}
+
+int Objecter::take_linger_budget(LingerOp *info)
+{
+ return 1;
+}
+
+/* This function DOES put the passed message before returning */
+void Objecter::handle_osd_op_reply(MOSDOpReply *m)
+{
+ ldout(cct, 10) << "in handle_osd_op_reply" << dendl;
+
+ // get pio
+ ceph_tid_t tid = m->get_tid();
+
+ shunique_lock sul(rwlock, ceph::acquire_shared);
+ if (!initialized) {
+ m->put();
+ return;
+ }
+
+ ConnectionRef con = m->get_connection();
+ auto priv = con->get_priv();
+ auto s = static_cast<OSDSession*>(priv.get());
+ if (!s || s->con != con) {
+ ldout(cct, 7) << __func__ << " no session on con " << con << dendl;
+ m->put();
+ return;
+ }
+
+ unique_lock sl(s->lock);
+
+ map<ceph_tid_t, Op *>::iterator iter = s->ops.find(tid);
+ if (iter == s->ops.end()) {
+ ldout(cct, 7) << "handle_osd_op_reply " << tid
+ << (m->is_ondisk() ? " ondisk" : (m->is_onnvram() ?
+ " onnvram" : " ack"))
+ << " ... stray" << dendl;
+ sl.unlock();
+ m->put();
+ return;
+ }
+
+ ldout(cct, 7) << "handle_osd_op_reply " << tid
+ << (m->is_ondisk() ? " ondisk" :
+ (m->is_onnvram() ? " onnvram" : " ack"))
+ << " uv " << m->get_user_version()
+ << " in " << m->get_pg()
+ << " attempt " << m->get_retry_attempt()
+ << dendl;
+ Op *op = iter->second;
+ op->trace.event("osd op reply");
+
+ if (retry_writes_after_first_reply && op->attempts == 1 &&
+ (op->target.flags & CEPH_OSD_FLAG_WRITE)) {
+ ldout(cct, 7) << "retrying write after first reply: " << tid << dendl;
+ if (op->has_completion()) {
+ num_in_flight--;
+ }
+ _session_op_remove(s, op);
+ sl.unlock();
+
+ _op_submit(op, sul, NULL);
+ m->put();
+ return;
+ }
+
+ if (m->get_retry_attempt() >= 0) {
+ if (m->get_retry_attempt() != (op->attempts - 1)) {
+ ldout(cct, 7) << " ignoring reply from attempt "
+ << m->get_retry_attempt()
+ << " from " << m->get_source_inst()
+ << "; last attempt " << (op->attempts - 1) << " sent to "
+ << op->session->con->get_peer_addr() << dendl;
+ m->put();
+ sl.unlock();
+ return;
+ }
+ } else {
+ // we don't know the request attempt because the server is old, so
+ // just accept this one. we may do ACK callbacks we shouldn't
+ // have, but that is better than doing callbacks out of order.
+ }
+
+ decltype(op->onfinish) onfinish;
+
+ int rc = m->get_result();
+
+ if (m->is_redirect_reply()) {
+ ldout(cct, 5) << " got redirect reply; redirecting" << dendl;
+ if (op->has_completion())
+ num_in_flight--;
+ _session_op_remove(s, op);
+ sl.unlock();
+
+ // FIXME: two redirects could race and reorder
+
+ op->tid = 0;
+ m->get_redirect().combine_with_locator(op->target.target_oloc,
+ op->target.target_oid.name);
+ op->target.flags |= (CEPH_OSD_FLAG_REDIRECTED |
+ CEPH_OSD_FLAG_IGNORE_CACHE |
+ CEPH_OSD_FLAG_IGNORE_OVERLAY);
+ _op_submit(op, sul, NULL);
+ m->put();
+ return;
+ }
+
+ if (rc == -EAGAIN) {
+ ldout(cct, 7) << " got -EAGAIN, resubmitting" << dendl;
+ if (op->has_completion())
+ num_in_flight--;
+ _session_op_remove(s, op);
+ sl.unlock();
+
+ op->tid = 0;
+ op->target.flags &= ~(CEPH_OSD_FLAG_BALANCE_READS |
+ CEPH_OSD_FLAG_LOCALIZE_READS);
+ op->target.pgid = pg_t();
+ _op_submit(op, sul, NULL);
+ m->put();
+ return;
+ }
+
+ sul.unlock();
+
+ if (op->objver)
+ *op->objver = m->get_user_version();
+ if (op->reply_epoch)
+ *op->reply_epoch = m->get_map_epoch();
+ if (op->data_offset)
+ *op->data_offset = m->get_header().data_off;
+
+ // got data?
+ if (op->outbl) {
+#if 0
+ if (op->con)
+ op->con->revoke_rx_buffer(op->tid);
+#endif
+ auto& bl = m->get_data();
+ if (op->outbl->length() == bl.length() &&
+ bl.get_num_buffers() <= 1) {
+ // this is here to keep previous users to *relied* on getting data
+ // read into existing buffers happy. Notably,
+ // libradosstriper::RadosStriperImpl::aio_read().
+ ldout(cct,10) << __func__ << " copying resulting " << bl.length()
+ << " into existing ceph::buffer of length " << op->outbl->length()
+ << dendl;
+ cb::list t;
+ t = std::move(*op->outbl);
+ t.invalidate_crc(); // we're overwriting the raw buffers via c_str()
+ bl.begin().copy(bl.length(), t.c_str());
+ op->outbl->substr_of(t, 0, bl.length());
+ } else {
+ m->claim_data(*op->outbl);
+ }
+ op->outbl = 0;
+ }
+
+ // per-op result demuxing
+ vector<OSDOp> out_ops;
+ m->claim_ops(out_ops);
+
+ if (out_ops.size() != op->ops.size())
+ ldout(cct, 0) << "WARNING: tid " << op->tid << " reply ops " << out_ops
+ << " != request ops " << op->ops
+ << " from " << m->get_source_inst() << dendl;
+
+ ceph_assert(op->ops.size() == op->out_bl.size());
+ ceph_assert(op->ops.size() == op->out_rval.size());
+ ceph_assert(op->ops.size() == op->out_ec.size());
+ ceph_assert(op->ops.size() == op->out_handler.size());
+ auto pb = op->out_bl.begin();
+ auto pr = op->out_rval.begin();
+ auto pe = op->out_ec.begin();
+ auto ph = op->out_handler.begin();
+ ceph_assert(op->out_bl.size() == op->out_rval.size());
+ ceph_assert(op->out_bl.size() == op->out_handler.size());
+ auto p = out_ops.begin();
+ for (unsigned i = 0;
+ p != out_ops.end() && pb != op->out_bl.end();
+ ++i, ++p, ++pb, ++pr, ++pe, ++ph) {
+ ldout(cct, 10) << " op " << i << " rval " << p->rval
+ << " len " << p->outdata.length() << dendl;
+ if (*pb)
+ **pb = p->outdata;
+ // set rval before running handlers so that handlers
+ // can change it if e.g. decoding fails
+ if (*pr)
+ **pr = ceph_to_hostos_errno(p->rval);
+ if (*pe)
+ **pe = p->rval < 0 ? bs::error_code(-p->rval, osd_category()) :
+ bs::error_code();
+ if (*ph) {
+ std::move((*ph))(p->rval < 0 ?
+ bs::error_code(-p->rval, osd_category()) :
+ bs::error_code(),
+ p->rval, p->outdata);
+ }
+ }
+
+ // NOTE: we assume that since we only request ONDISK ever we will
+ // only ever get back one (type of) ack ever.
+
+ if (op->has_completion()) {
+ num_in_flight--;
+ onfinish = std::move(op->onfinish);
+ op->onfinish = nullptr;
+ }
+ logger->inc(l_osdc_op_reply);
+ logger->tinc(l_osdc_op_latency, ceph::coarse_mono_time::clock::now() - op->stamp);
+ logger->set(l_osdc_op_inflight, num_in_flight);
+
+ /* get it before we call _finish_op() */
+ auto completion_lock = s->get_lock(op->target.base_oid);
+
+ ldout(cct, 15) << "handle_osd_op_reply completed tid " << tid << dendl;
+ _finish_op(op, 0);
+
+ ldout(cct, 5) << num_in_flight << " in flight" << dendl;
+
+ // serialize completions
+ if (completion_lock.mutex()) {
+ completion_lock.lock();
+ }
+ sl.unlock();
+
+ // do callbacks
+ if (Op::has_completion(onfinish)) {
+ Op::complete(std::move(onfinish), osdcode(rc), rc);
+ }
+ if (completion_lock.mutex()) {
+ completion_lock.unlock();
+ }
+
+ m->put();
+}
+
+void Objecter::handle_osd_backoff(MOSDBackoff *m)
+{
+ ldout(cct, 10) << __func__ << " " << *m << dendl;
+ shunique_lock sul(rwlock, ceph::acquire_shared);
+ if (!initialized) {
+ m->put();
+ return;
+ }
+
+ ConnectionRef con = m->get_connection();
+ auto priv = con->get_priv();
+ auto s = static_cast<OSDSession*>(priv.get());
+ if (!s || s->con != con) {
+ ldout(cct, 7) << __func__ << " no session on con " << con << dendl;
+ m->put();
+ return;
+ }
+
+ get_session(s);
+
+ unique_lock sl(s->lock);
+
+ switch (m->op) {
+ case CEPH_OSD_BACKOFF_OP_BLOCK:
+ {
+ // register
+ OSDBackoff& b = s->backoffs[m->pgid][m->begin];
+ s->backoffs_by_id.insert(make_pair(m->id, &b));
+ b.pgid = m->pgid;
+ b.id = m->id;
+ b.begin = m->begin;
+ b.end = m->end;
+
+ // ack with original backoff's epoch so that the osd can discard this if
+ // there was a pg split.
+ auto r = new MOSDBackoff(m->pgid, m->map_epoch,
+ CEPH_OSD_BACKOFF_OP_ACK_BLOCK,
+ m->id, m->begin, m->end);
+ // this priority must match the MOSDOps from _prepare_osd_op
+ r->set_priority(cct->_conf->osd_client_op_priority);
+ con->send_message(r);
+ }
+ break;
+
+ case CEPH_OSD_BACKOFF_OP_UNBLOCK:
+ {
+ auto p = s->backoffs_by_id.find(m->id);
+ if (p != s->backoffs_by_id.end()) {
+ OSDBackoff *b = p->second;
+ if (b->begin != m->begin &&
+ b->end != m->end) {
+ lderr(cct) << __func__ << " got " << m->pgid << " id " << m->id
+ << " unblock on ["
+ << m->begin << "," << m->end << ") but backoff is ["
+ << b->begin << "," << b->end << ")" << dendl;
+ // hrmpf, unblock it anyway.
+ }
+ ldout(cct, 10) << __func__ << " unblock backoff " << b->pgid
+ << " id " << b->id
+ << " [" << b->begin << "," << b->end
+ << ")" << dendl;
+ auto spgp = s->backoffs.find(b->pgid);
+ ceph_assert(spgp != s->backoffs.end());
+ spgp->second.erase(b->begin);
+ if (spgp->second.empty()) {
+ s->backoffs.erase(spgp);
+ }
+ s->backoffs_by_id.erase(p);
+
+ // check for any ops to resend
+ for (auto& q : s->ops) {
+ if (q.second->target.actual_pgid == m->pgid) {
+ int r = q.second->target.contained_by(m->begin, m->end);
+ ldout(cct, 20) << __func__ << " contained_by " << r << " on "
+ << q.second->target.get_hobj() << dendl;
+ if (r) {
+ _send_op(q.second);
+ }
+ }
+ }
+ } else {
+ lderr(cct) << __func__ << " " << m->pgid << " id " << m->id
+ << " unblock on ["
+ << m->begin << "," << m->end << ") but backoff dne" << dendl;
+ }
+ }
+ break;
+
+ default:
+ ldout(cct, 10) << __func__ << " unrecognized op " << (int)m->op << dendl;
+ }
+
+ sul.unlock();
+ sl.unlock();
+
+ m->put();
+ put_session(s);
+}
+
+uint32_t Objecter::list_nobjects_seek(NListContext *list_context,
+ uint32_t pos)
+{
+ shared_lock rl(rwlock);
+ list_context->pos = hobject_t(object_t(), string(), CEPH_NOSNAP,
+ pos, list_context->pool_id, string());
+ ldout(cct, 10) << __func__ << " " << list_context
+ << " pos " << pos << " -> " << list_context->pos << dendl;
+ pg_t actual = osdmap->raw_pg_to_pg(pg_t(pos, list_context->pool_id));
+ list_context->current_pg = actual.ps();
+ list_context->at_end_of_pool = false;
+ return pos;
+}
+
+uint32_t Objecter::list_nobjects_seek(NListContext *list_context,
+ const hobject_t& cursor)
+{
+ shared_lock rl(rwlock);
+ ldout(cct, 10) << "list_nobjects_seek " << list_context << dendl;
+ list_context->pos = cursor;
+ list_context->at_end_of_pool = false;
+ pg_t actual = osdmap->raw_pg_to_pg(pg_t(cursor.get_hash(), list_context->pool_id));
+ list_context->current_pg = actual.ps();
+ list_context->sort_bitwise = true;
+ return list_context->current_pg;
+}
+
+void Objecter::list_nobjects_get_cursor(NListContext *list_context,
+ hobject_t *cursor)
+{
+ shared_lock rl(rwlock);
+ if (list_context->list.empty()) {
+ *cursor = list_context->pos;
+ } else {
+ const librados::ListObjectImpl& entry = list_context->list.front();
+ const string *key = (entry.locator.empty() ? &entry.oid : &entry.locator);
+ uint32_t h = osdmap->get_pg_pool(list_context->pool_id)->hash_key(*key, entry.nspace);
+ *cursor = hobject_t(entry.oid, entry.locator, list_context->pool_snap_seq, h, list_context->pool_id, entry.nspace);
+ }
+}
+
+void Objecter::list_nobjects(NListContext *list_context, Context *onfinish)
+{
+ ldout(cct, 10) << __func__ << " pool_id " << list_context->pool_id
+ << " pool_snap_seq " << list_context->pool_snap_seq
+ << " max_entries " << list_context->max_entries
+ << " list_context " << list_context
+ << " onfinish " << onfinish
+ << " current_pg " << list_context->current_pg
+ << " pos " << list_context->pos << dendl;
+
+ shared_lock rl(rwlock);
+ const pg_pool_t *pool = osdmap->get_pg_pool(list_context->pool_id);
+ if (!pool) { // pool is gone
+ rl.unlock();
+ put_nlist_context_budget(list_context);
+ onfinish->complete(-ENOENT);
+ return;
+ }
+ int pg_num = pool->get_pg_num();
+ bool sort_bitwise = osdmap->test_flag(CEPH_OSDMAP_SORTBITWISE);
+
+ if (list_context->pos.is_min()) {
+ list_context->starting_pg_num = 0;
+ list_context->sort_bitwise = sort_bitwise;
+ list_context->starting_pg_num = pg_num;
+ }
+ if (list_context->sort_bitwise != sort_bitwise) {
+ list_context->pos = hobject_t(
+ object_t(), string(), CEPH_NOSNAP,
+ list_context->current_pg, list_context->pool_id, string());
+ list_context->sort_bitwise = sort_bitwise;
+ ldout(cct, 10) << " hobject sort order changed, restarting this pg at "
+ << list_context->pos << dendl;
+ }
+ if (list_context->starting_pg_num != pg_num) {
+ if (!sort_bitwise) {
+ // start reading from the beginning; the pgs have changed
+ ldout(cct, 10) << " pg_num changed; restarting with " << pg_num << dendl;
+ list_context->pos = collection_list_handle_t();
+ }
+ list_context->starting_pg_num = pg_num;
+ }
+
+ if (list_context->pos.is_max()) {
+ ldout(cct, 20) << __func__ << " end of pool, list "
+ << list_context->list << dendl;
+ if (list_context->list.empty()) {
+ list_context->at_end_of_pool = true;
+ }
+ // release the listing context's budget once all
+ // OPs (in the session) are finished
+ put_nlist_context_budget(list_context);
+ onfinish->complete(0);
+ return;
+ }
+
+ ObjectOperation op;
+ op.pg_nls(list_context->max_entries, list_context->filter,
+ list_context->pos, osdmap->get_epoch());
+ list_context->bl.clear();
+ auto onack = new C_NList(list_context, onfinish, this);
+ object_locator_t oloc(list_context->pool_id, list_context->nspace);
+
+ // note current_pg in case we don't have (or lose) SORTBITWISE
+ list_context->current_pg = pool->raw_hash_to_pg(list_context->pos.get_hash());
+ rl.unlock();
+
+ pg_read(list_context->current_pg, oloc, op,
+ &list_context->bl, 0, onack, &onack->epoch,
+ &list_context->ctx_budget);
+}
+
+void Objecter::_nlist_reply(NListContext *list_context, int r,
+ Context *final_finish, epoch_t reply_epoch)
+{
+ ldout(cct, 10) << __func__ << " " << list_context << dendl;
+
+ auto iter = list_context->bl.cbegin();
+ pg_nls_response_t response;
+ decode(response, iter);
+ if (!iter.end()) {
+ // we do this as legacy.
+ cb::list legacy_extra_info;
+ decode(legacy_extra_info, iter);
+ }
+
+ // if the osd returns 1 (newer code), or handle MAX, it means we
+ // hit the end of the pg.
+ if ((response.handle.is_max() || r == 1) &&
+ !list_context->sort_bitwise) {
+ // legacy OSD and !sortbitwise, figure out the next PG on our own
+ ++list_context->current_pg;
+ if (list_context->current_pg == list_context->starting_pg_num) {
+ // end of pool
+ list_context->pos = hobject_t::get_max();
+ } else {
+ // next pg
+ list_context->pos = hobject_t(object_t(), string(), CEPH_NOSNAP,
+ list_context->current_pg,
+ list_context->pool_id, string());
+ }
+ } else {
+ list_context->pos = response.handle;
+ }
+
+ int response_size = response.entries.size();
+ ldout(cct, 20) << " response.entries.size " << response_size
+ << ", response.entries " << response.entries
+ << ", handle " << response.handle
+ << ", tentative new pos " << list_context->pos << dendl;
+ if (response_size) {
+ std::move(response.entries.begin(), response.entries.end(),
+ std::back_inserter(list_context->list));
+ response.entries.clear();
+ }
+
+ if (list_context->list.size() >= list_context->max_entries) {
+ ldout(cct, 20) << " hit max, returning results so far, "
+ << list_context->list << dendl;
+ // release the listing context's budget once all
+ // OPs (in the session) are finished
+ put_nlist_context_budget(list_context);
+ final_finish->complete(0);
+ return;
+ }
+
+ // continue!
+ list_nobjects(list_context, final_finish);
+}
+
+void Objecter::put_nlist_context_budget(NListContext *list_context)
+{
+ if (list_context->ctx_budget >= 0) {
+ ldout(cct, 10) << " release listing context's budget " <<
+ list_context->ctx_budget << dendl;
+ put_op_budget_bytes(list_context->ctx_budget);
+ list_context->ctx_budget = -1;
+ }
+}
+
+// snapshots
+
+void Objecter::create_pool_snap(int64_t pool, std::string_view snap_name,
+ decltype(PoolOp::onfinish)&& onfinish)
+{
+ unique_lock wl(rwlock);
+ ldout(cct, 10) << "create_pool_snap; pool: " << pool << "; snap: "
+ << snap_name << dendl;
+
+ const pg_pool_t *p = osdmap->get_pg_pool(pool);
+ if (!p) {
+ onfinish->defer(std::move(onfinish), osdc_errc::pool_dne, cb::list{});
+ return;
+ }
+ if (p->snap_exists(snap_name)) {
+ onfinish->defer(std::move(onfinish), osdc_errc::snapshot_exists,
+ cb::list{});
+ return;
+ }
+
+ auto op = new PoolOp;
+ op->tid = ++last_tid;
+ op->pool = pool;
+ op->name = snap_name;
+ op->onfinish = std::move(onfinish);
+ op->pool_op = POOL_OP_CREATE_SNAP;
+ pool_ops[op->tid] = op;
+
+ pool_op_submit(op);
+}
+
+struct CB_SelfmanagedSnap {
+ std::unique_ptr<ca::Completion<void(bs::error_code, snapid_t)>> fin;
+ CB_SelfmanagedSnap(decltype(fin)&& fin)
+ : fin(std::move(fin)) {}
+ void operator()(bs::error_code ec, const cb::list& bl) {
+ snapid_t snapid = 0;
+ if (!ec) {
+ try {
+ auto p = bl.cbegin();
+ decode(snapid, p);
+ } catch (const cb::error& e) {
+ ec = e.code();
+ }
+ }
+ fin->defer(std::move(fin), ec, snapid);
+ }
+};
+
+void Objecter::allocate_selfmanaged_snap(
+ int64_t pool,
+ std::unique_ptr<ca::Completion<void(bs::error_code, snapid_t)>> onfinish)
+{
+ unique_lock wl(rwlock);
+ ldout(cct, 10) << "allocate_selfmanaged_snap; pool: " << pool << dendl;
+ auto op = new PoolOp;
+ op->tid = ++last_tid;
+ op->pool = pool;
+ op->onfinish = PoolOp::OpComp::create(
+ service.get_executor(),
+ CB_SelfmanagedSnap(std::move(onfinish)));
+ op->pool_op = POOL_OP_CREATE_UNMANAGED_SNAP;
+ pool_ops[op->tid] = op;
+
+ pool_op_submit(op);
+}
+
+void Objecter::delete_pool_snap(
+ int64_t pool, std::string_view snap_name,
+ decltype(PoolOp::onfinish)&& onfinish)
+{
+ unique_lock wl(rwlock);
+ ldout(cct, 10) << "delete_pool_snap; pool: " << pool << "; snap: "
+ << snap_name << dendl;
+
+ const pg_pool_t *p = osdmap->get_pg_pool(pool);
+ if (!p) {
+ onfinish->defer(std::move(onfinish), osdc_errc::pool_dne, cb::list{});
+ return;
+ }
+
+ if (!p->snap_exists(snap_name)) {
+ onfinish->defer(std::move(onfinish), osdc_errc::snapshot_dne, cb::list{});
+ return;
+ }
+
+ auto op = new PoolOp;
+ op->tid = ++last_tid;
+ op->pool = pool;
+ op->name = snap_name;
+ op->onfinish = std::move(onfinish);
+ op->pool_op = POOL_OP_DELETE_SNAP;
+ pool_ops[op->tid] = op;
+
+ pool_op_submit(op);
+}
+
+void Objecter::delete_selfmanaged_snap(int64_t pool, snapid_t snap,
+ decltype(PoolOp::onfinish)&& onfinish)
+{
+ unique_lock wl(rwlock);
+ ldout(cct, 10) << "delete_selfmanaged_snap; pool: " << pool << "; snap: "
+ << snap << dendl;
+ auto op = new PoolOp;
+ op->tid = ++last_tid;
+ op->pool = pool;
+ op->onfinish = std::move(onfinish);
+ op->pool_op = POOL_OP_DELETE_UNMANAGED_SNAP;
+ op->snapid = snap;
+ pool_ops[op->tid] = op;
+
+ pool_op_submit(op);
+}
+
+void Objecter::create_pool(std::string_view name,
+ decltype(PoolOp::onfinish)&& onfinish,
+ int crush_rule)
+{
+ unique_lock wl(rwlock);
+ ldout(cct, 10) << "create_pool name=" << name << dendl;
+
+ if (osdmap->lookup_pg_pool_name(name) >= 0) {
+ onfinish->defer(std::move(onfinish), osdc_errc::pool_exists, cb::list{});
+ return;
+ }
+
+ auto op = new PoolOp;
+ op->tid = ++last_tid;
+ op->pool = 0;
+ op->name = name;
+ op->onfinish = std::move(onfinish);
+ op->pool_op = POOL_OP_CREATE;
+ pool_ops[op->tid] = op;
+ op->crush_rule = crush_rule;
+
+ pool_op_submit(op);
+}
+
+void Objecter::delete_pool(int64_t pool,
+ decltype(PoolOp::onfinish)&& onfinish)
+{
+ unique_lock wl(rwlock);
+ ldout(cct, 10) << "delete_pool " << pool << dendl;
+
+ if (!osdmap->have_pg_pool(pool))
+ onfinish->defer(std::move(onfinish), osdc_errc::pool_dne, cb::list{});
+ else
+ _do_delete_pool(pool, std::move(onfinish));
+}
+
+void Objecter::delete_pool(std::string_view pool_name,
+ decltype(PoolOp::onfinish)&& onfinish)
+{
+ unique_lock wl(rwlock);
+ ldout(cct, 10) << "delete_pool " << pool_name << dendl;
+
+ int64_t pool = osdmap->lookup_pg_pool_name(pool_name);
+ if (pool < 0)
+ // This only returns one error: -ENOENT.
+ onfinish->defer(std::move(onfinish), osdc_errc::pool_dne, cb::list{});
+ else
+ _do_delete_pool(pool, std::move(onfinish));
+}
+
+void Objecter::_do_delete_pool(int64_t pool,
+ decltype(PoolOp::onfinish)&& onfinish)
+
+{
+ auto op = new PoolOp;
+ op->tid = ++last_tid;
+ op->pool = pool;
+ op->name = "delete";
+ op->onfinish = std::move(onfinish);
+ op->pool_op = POOL_OP_DELETE;
+ pool_ops[op->tid] = op;
+ pool_op_submit(op);
+}
+
+void Objecter::pool_op_submit(PoolOp *op)
+{
+ // rwlock is locked
+ if (mon_timeout > timespan(0)) {
+ op->ontimeout = timer.add_event(mon_timeout,
+ [this, op]() {
+ pool_op_cancel(op->tid, -ETIMEDOUT); });
+ }
+ _pool_op_submit(op);
+}
+
+void Objecter::_pool_op_submit(PoolOp *op)
+{
+ // rwlock is locked unique
+
+ ldout(cct, 10) << "pool_op_submit " << op->tid << dendl;
+ auto m = new MPoolOp(monc->get_fsid(), op->tid, op->pool,
+ op->name, op->pool_op,
+ last_seen_osdmap_version);
+ if (op->snapid) m->snapid = op->snapid;
+ if (op->crush_rule) m->crush_rule = op->crush_rule;
+ monc->send_mon_message(m);
+ op->last_submit = ceph::coarse_mono_clock::now();
+
+ logger->inc(l_osdc_poolop_send);
+}
+
+/**
+ * Handle a reply to a PoolOp message. Check that we sent the message
+ * and give the caller responsibility for the returned cb::list.
+ * Then either call the finisher or stash the PoolOp, depending on if we
+ * have a new enough map.
+ * Lastly, clean up the message and PoolOp.
+ */
+void Objecter::handle_pool_op_reply(MPoolOpReply *m)
+{
+ int rc = m->replyCode;
+ auto ec = rc < 0 ? bs::error_code(-rc, mon_category()) : bs::error_code();
+ FUNCTRACE(cct);
+ shunique_lock sul(rwlock, acquire_shared);
+ if (!initialized) {
+ sul.unlock();
+ m->put();
+ return;
+ }
+
+ ldout(cct, 10) << "handle_pool_op_reply " << *m << dendl;
+ ceph_tid_t tid = m->get_tid();
+ auto iter = pool_ops.find(tid);
+ if (iter != pool_ops.end()) {
+ PoolOp *op = iter->second;
+ ldout(cct, 10) << "have request " << tid << " at " << op << " Op: "
+ << ceph_pool_op_name(op->pool_op) << dendl;
+ cb::list bl{std::move(m->response_data)};
+ if (m->version > last_seen_osdmap_version)
+ last_seen_osdmap_version = m->version;
+ if (osdmap->get_epoch() < m->epoch) {
+ sul.unlock();
+ sul.lock();
+ // recheck op existence since we have let go of rwlock
+ // (for promotion) above.
+ iter = pool_ops.find(tid);
+ if (iter == pool_ops.end())
+ goto done; // op is gone.
+ if (osdmap->get_epoch() < m->epoch) {
+ ldout(cct, 20) << "waiting for client to reach epoch " << m->epoch
+ << " before calling back" << dendl;
+ _wait_for_new_map(OpCompletion::create(
+ service.get_executor(),
+ [o = std::move(op->onfinish),
+ bl = std::move(bl)](
+ bs::error_code ec) mutable {
+ o->defer(std::move(o), ec, bl);
+ }),
+ m->epoch,
+ ec);
+ } else {
+ // map epoch changed, probably because a MOSDMap message
+ // sneaked in. Do caller-specified callback now or else
+ // we lose it forever.
+ ceph_assert(op->onfinish);
+ op->onfinish->defer(std::move(op->onfinish), ec, std::move(bl));
+ }
+ } else {
+ ceph_assert(op->onfinish);
+ op->onfinish->defer(std::move(op->onfinish), ec, std::move(bl));
+ }
+ op->onfinish = nullptr;
+ if (!sul.owns_lock()) {
+ sul.unlock();
+ sul.lock();
+ }
+ iter = pool_ops.find(tid);
+ if (iter != pool_ops.end()) {
+ _finish_pool_op(op, 0);
+ }
+ } else {
+ ldout(cct, 10) << "unknown request " << tid << dendl;
+ }
+
+done:
+ // Not strictly necessary, since we'll release it on return.
+ sul.unlock();
+
+ ldout(cct, 10) << "done" << dendl;
+ m->put();
+}
+
+int Objecter::pool_op_cancel(ceph_tid_t tid, int r)
+{
+ ceph_assert(initialized);
+
+ unique_lock wl(rwlock);
+
+ auto it = pool_ops.find(tid);
+ if (it == pool_ops.end()) {
+ ldout(cct, 10) << __func__ << " tid " << tid << " dne" << dendl;
+ return -ENOENT;
+ }
+
+ ldout(cct, 10) << __func__ << " tid " << tid << dendl;
+
+ PoolOp *op = it->second;
+ if (op->onfinish)
+ op->onfinish->defer(std::move(op->onfinish), osdcode(r), cb::list{});
+
+ _finish_pool_op(op, r);
+ return 0;
+}
+
+void Objecter::_finish_pool_op(PoolOp *op, int r)
+{
+ // rwlock is locked unique
+ pool_ops.erase(op->tid);
+ logger->set(l_osdc_poolop_active, pool_ops.size());
+
+ if (op->ontimeout && r != -ETIMEDOUT) {
+ timer.cancel_event(op->ontimeout);
+ }
+
+ delete op;
+}
+
+// pool stats
+
+void Objecter::get_pool_stats(
+ const std::vector<std::string>& pools,
+ decltype(PoolStatOp::onfinish)&& onfinish)
+{
+ ldout(cct, 10) << "get_pool_stats " << pools << dendl;
+
+ auto op = new PoolStatOp;
+ op->tid = ++last_tid;
+ op->pools = pools;
+ op->onfinish = std::move(onfinish);
+ if (mon_timeout > timespan(0)) {
+ op->ontimeout = timer.add_event(mon_timeout,
+ [this, op]() {
+ pool_stat_op_cancel(op->tid,
+ -ETIMEDOUT); });
+ } else {
+ op->ontimeout = 0;
+ }
+
+ unique_lock wl(rwlock);
+
+ poolstat_ops[op->tid] = op;
+
+ logger->set(l_osdc_poolstat_active, poolstat_ops.size());
+
+ _poolstat_submit(op);
+}
+
+void Objecter::_poolstat_submit(PoolStatOp *op)
+{
+ ldout(cct, 10) << "_poolstat_submit " << op->tid << dendl;
+ monc->send_mon_message(new MGetPoolStats(monc->get_fsid(), op->tid,
+ op->pools,
+ last_seen_pgmap_version));
+ op->last_submit = ceph::coarse_mono_clock::now();
+
+ logger->inc(l_osdc_poolstat_send);
+}
+
+void Objecter::handle_get_pool_stats_reply(MGetPoolStatsReply *m)
+{
+ ldout(cct, 10) << "handle_get_pool_stats_reply " << *m << dendl;
+ ceph_tid_t tid = m->get_tid();
+
+ unique_lock wl(rwlock);
+ if (!initialized) {
+ m->put();
+ return;
+ }
+
+ auto iter = poolstat_ops.find(tid);
+ if (iter != poolstat_ops.end()) {
+ PoolStatOp *op = poolstat_ops[tid];
+ ldout(cct, 10) << "have request " << tid << " at " << op << dendl;
+ if (m->version > last_seen_pgmap_version) {
+ last_seen_pgmap_version = m->version;
+ }
+ op->onfinish->defer(std::move(op->onfinish), bs::error_code{},
+ std::move(m->pool_stats), m->per_pool);
+ _finish_pool_stat_op(op, 0);
+ } else {
+ ldout(cct, 10) << "unknown request " << tid << dendl;
+ }
+ ldout(cct, 10) << "done" << dendl;
+ m->put();
+}
+
+int Objecter::pool_stat_op_cancel(ceph_tid_t tid, int r)
+{
+ ceph_assert(initialized);
+
+ unique_lock wl(rwlock);
+
+ auto it = poolstat_ops.find(tid);
+ if (it == poolstat_ops.end()) {
+ ldout(cct, 10) << __func__ << " tid " << tid << " dne" << dendl;
+ return -ENOENT;
+ }
+
+ ldout(cct, 10) << __func__ << " tid " << tid << dendl;
+
+ auto op = it->second;
+ if (op->onfinish)
+ op->onfinish->defer(std::move(op->onfinish), osdcode(r),
+ bc::flat_map<std::string, pool_stat_t>{}, false);
+ _finish_pool_stat_op(op, r);
+ return 0;
+}
+
+void Objecter::_finish_pool_stat_op(PoolStatOp *op, int r)
+{
+ // rwlock is locked unique
+
+ poolstat_ops.erase(op->tid);
+ logger->set(l_osdc_poolstat_active, poolstat_ops.size());
+
+ if (op->ontimeout && r != -ETIMEDOUT)
+ timer.cancel_event(op->ontimeout);
+
+ delete op;
+}
+
+void Objecter::get_fs_stats(std::optional<int64_t> poolid,
+ decltype(StatfsOp::onfinish)&& onfinish)
+{
+ ldout(cct, 10) << "get_fs_stats" << dendl;
+ unique_lock l(rwlock);
+
+ auto op = new StatfsOp;
+ op->tid = ++last_tid;
+ op->data_pool = poolid;
+ op->onfinish = std::move(onfinish);
+ if (mon_timeout > timespan(0)) {
+ op->ontimeout = timer.add_event(mon_timeout,
+ [this, op]() {
+ statfs_op_cancel(op->tid,
+ -ETIMEDOUT); });
+ } else {
+ op->ontimeout = 0;
+ }
+ statfs_ops[op->tid] = op;
+
+ logger->set(l_osdc_statfs_active, statfs_ops.size());
+
+ _fs_stats_submit(op);
+}
+
+void Objecter::_fs_stats_submit(StatfsOp *op)
+{
+ // rwlock is locked unique
+
+ ldout(cct, 10) << "fs_stats_submit" << op->tid << dendl;
+ monc->send_mon_message(new MStatfs(monc->get_fsid(), op->tid,
+ op->data_pool,
+ last_seen_pgmap_version));
+ op->last_submit = ceph::coarse_mono_clock::now();
+
+ logger->inc(l_osdc_statfs_send);
+}
+
+void Objecter::handle_fs_stats_reply(MStatfsReply *m)
+{
+ unique_lock wl(rwlock);
+ if (!initialized) {
+ m->put();
+ return;
+ }
+
+ ldout(cct, 10) << "handle_fs_stats_reply " << *m << dendl;
+ ceph_tid_t tid = m->get_tid();
+
+ if (statfs_ops.count(tid)) {
+ StatfsOp *op = statfs_ops[tid];
+ ldout(cct, 10) << "have request " << tid << " at " << op << dendl;
+ if (m->h.version > last_seen_pgmap_version)
+ last_seen_pgmap_version = m->h.version;
+ op->onfinish->defer(std::move(op->onfinish), bs::error_code{}, m->h.st);
+ _finish_statfs_op(op, 0);
+ } else {
+ ldout(cct, 10) << "unknown request " << tid << dendl;
+ }
+ m->put();
+ ldout(cct, 10) << "done" << dendl;
+}
+
+int Objecter::statfs_op_cancel(ceph_tid_t tid, int r)
+{
+ ceph_assert(initialized);
+
+ unique_lock wl(rwlock);
+
+ auto it = statfs_ops.find(tid);
+ if (it == statfs_ops.end()) {
+ ldout(cct, 10) << __func__ << " tid " << tid << " dne" << dendl;
+ return -ENOENT;
+ }
+
+ ldout(cct, 10) << __func__ << " tid " << tid << dendl;
+
+ auto op = it->second;
+ if (op->onfinish)
+ op->onfinish->defer(std::move(op->onfinish), osdcode(r), ceph_statfs{});
+ _finish_statfs_op(op, r);
+ return 0;
+}
+
+void Objecter::_finish_statfs_op(StatfsOp *op, int r)
+{
+ // rwlock is locked unique
+
+ statfs_ops.erase(op->tid);
+ logger->set(l_osdc_statfs_active, statfs_ops.size());
+
+ if (op->ontimeout && r != -ETIMEDOUT)
+ timer.cancel_event(op->ontimeout);
+
+ delete op;
+}
+
+// scatter/gather
+
+void Objecter::_sg_read_finish(vector<ObjectExtent>& extents,
+ vector<cb::list>& resultbl,
+ cb::list *bl, Context *onfinish)
+{
+ // all done
+ ldout(cct, 15) << "_sg_read_finish" << dendl;
+
+ if (extents.size() > 1) {
+ Striper::StripedReadResult r;
+ auto bit = resultbl.begin();
+ for (auto eit = extents.begin();
+ eit != extents.end();
+ ++eit, ++bit) {
+ r.add_partial_result(cct, *bit, eit->buffer_extents);
+ }
+ bl->clear();
+ r.assemble_result(cct, *bl, false);
+ } else {
+ ldout(cct, 15) << " only one frag" << dendl;
+ *bl = std::move(resultbl[0]);
+ }
+
+ // done
+ uint64_t bytes_read = bl->length();
+ ldout(cct, 7) << "_sg_read_finish " << bytes_read << " bytes" << dendl;
+
+ if (onfinish) {
+ onfinish->complete(bytes_read);// > 0 ? bytes_read:m->get_result());
+ }
+}
+
+
+void Objecter::ms_handle_connect(Connection *con)
+{
+ ldout(cct, 10) << "ms_handle_connect " << con << dendl;
+ if (!initialized)
+ return;
+
+ if (con->get_peer_type() == CEPH_ENTITY_TYPE_MON)
+ resend_mon_ops();
+}
+
+bool Objecter::ms_handle_reset(Connection *con)
+{
+ if (!initialized)
+ return false;
+ if (con->get_peer_type() == CEPH_ENTITY_TYPE_OSD) {
+ unique_lock wl(rwlock);
+
+ auto priv = con->get_priv();
+ auto session = static_cast<OSDSession*>(priv.get());
+ if (session) {
+ ldout(cct, 1) << "ms_handle_reset " << con << " session " << session
+ << " osd." << session->osd << dendl;
+ // the session maybe had been closed if new osdmap just handled
+ // says the osd down
+ if (!(initialized && osdmap->is_up(session->osd))) {
+ ldout(cct, 1) << "ms_handle_reset aborted,initialized=" << initialized << dendl;
+ wl.unlock();
+ return false;
+ }
+ map<uint64_t, LingerOp *> lresend;
+ unique_lock sl(session->lock);
+ _reopen_session(session);
+ _kick_requests(session, lresend);
+ sl.unlock();
+ _linger_ops_resend(lresend, wl);
+ wl.unlock();
+ maybe_request_map();
+ }
+ return true;
+ }
+ return false;
+}
+
+void Objecter::ms_handle_remote_reset(Connection *con)
+{
+ /*
+ * treat these the same.
+ */
+ ms_handle_reset(con);
+}
+
+bool Objecter::ms_handle_refused(Connection *con)
+{
+ // just log for now
+ if (osdmap && (con->get_peer_type() == CEPH_ENTITY_TYPE_OSD)) {
+ int osd = osdmap->identify_osd(con->get_peer_addr());
+ if (osd >= 0) {
+ ldout(cct, 1) << "ms_handle_refused on osd." << osd << dendl;
+ }
+ }
+ return false;
+}
+
+void Objecter::op_target_t::dump(Formatter *f) const
+{
+ f->dump_stream("pg") << pgid;
+ f->dump_int("osd", osd);
+ f->dump_stream("object_id") << base_oid;
+ f->dump_stream("object_locator") << base_oloc;
+ f->dump_stream("target_object_id") << target_oid;
+ f->dump_stream("target_object_locator") << target_oloc;
+ f->dump_int("paused", (int)paused);
+ f->dump_int("used_replica", (int)used_replica);
+ f->dump_int("precalc_pgid", (int)precalc_pgid);
+}
+
+void Objecter::_dump_active(OSDSession *s)
+{
+ for (auto p = s->ops.begin(); p != s->ops.end(); ++p) {
+ Op *op = p->second;
+ ldout(cct, 20) << op->tid << "\t" << op->target.pgid
+ << "\tosd." << (op->session ? op->session->osd : -1)
+ << "\t" << op->target.base_oid
+ << "\t" << op->ops << dendl;
+ }
+}
+
+void Objecter::_dump_active()
+{
+ ldout(cct, 20) << "dump_active .. " << num_homeless_ops << " homeless"
+ << dendl;
+ for (auto siter = osd_sessions.begin();
+ siter != osd_sessions.end(); ++siter) {
+ auto s = siter->second;
+ shared_lock sl(s->lock);
+ _dump_active(s);
+ sl.unlock();
+ }
+ _dump_active(homeless_session);
+}
+
+void Objecter::dump_active()
+{
+ shared_lock rl(rwlock);
+ _dump_active();
+ rl.unlock();
+}
+
+void Objecter::dump_requests(Formatter *fmt)
+{
+ // Read-lock on Objecter held here
+ fmt->open_object_section("requests");
+ dump_ops(fmt);
+ dump_linger_ops(fmt);
+ dump_pool_ops(fmt);
+ dump_pool_stat_ops(fmt);
+ dump_statfs_ops(fmt);
+ dump_command_ops(fmt);
+ fmt->close_section(); // requests object
+}
+
+void Objecter::_dump_ops(const OSDSession *s, Formatter *fmt)
+{
+ for (auto p = s->ops.begin(); p != s->ops.end(); ++p) {
+ Op *op = p->second;
+ auto age = std::chrono::duration<double>(ceph::coarse_mono_clock::now() - op->stamp);
+ fmt->open_object_section("op");
+ fmt->dump_unsigned("tid", op->tid);
+ op->target.dump(fmt);
+ fmt->dump_stream("last_sent") << op->stamp;
+ fmt->dump_float("age", age.count());
+ fmt->dump_int("attempts", op->attempts);
+ fmt->dump_stream("snapid") << op->snapid;
+ fmt->dump_stream("snap_context") << op->snapc;
+ fmt->dump_stream("mtime") << op->mtime;
+
+ fmt->open_array_section("osd_ops");
+ for (auto it = op->ops.begin(); it != op->ops.end(); ++it) {
+ fmt->dump_stream("osd_op") << *it;
+ }
+ fmt->close_section(); // osd_ops array
+
+ fmt->close_section(); // op object
+ }
+}
+
+void Objecter::dump_ops(Formatter *fmt)
+{
+ // Read-lock on Objecter held
+ fmt->open_array_section("ops");
+ for (auto siter = osd_sessions.begin();
+ siter != osd_sessions.end(); ++siter) {
+ OSDSession *s = siter->second;
+ shared_lock sl(s->lock);
+ _dump_ops(s, fmt);
+ sl.unlock();
+ }
+ _dump_ops(homeless_session, fmt);
+ fmt->close_section(); // ops array
+}
+
+void Objecter::_dump_linger_ops(const OSDSession *s, Formatter *fmt)
+{
+ for (auto p = s->linger_ops.begin(); p != s->linger_ops.end(); ++p) {
+ auto op = p->second;
+ fmt->open_object_section("linger_op");
+ fmt->dump_unsigned("linger_id", op->linger_id);
+ op->target.dump(fmt);
+ fmt->dump_stream("snapid") << op->snap;
+ fmt->dump_stream("registered") << op->registered;
+ fmt->close_section(); // linger_op object
+ }
+}
+
+void Objecter::dump_linger_ops(Formatter *fmt)
+{
+ // We have a read-lock on the objecter
+ fmt->open_array_section("linger_ops");
+ for (auto siter = osd_sessions.begin();
+ siter != osd_sessions.end(); ++siter) {
+ auto s = siter->second;
+ shared_lock sl(s->lock);
+ _dump_linger_ops(s, fmt);
+ sl.unlock();
+ }
+ _dump_linger_ops(homeless_session, fmt);
+ fmt->close_section(); // linger_ops array
+}
+
+void Objecter::_dump_command_ops(const OSDSession *s, Formatter *fmt)
+{
+ for (auto p = s->command_ops.begin(); p != s->command_ops.end(); ++p) {
+ auto op = p->second;
+ fmt->open_object_section("command_op");
+ fmt->dump_unsigned("command_id", op->tid);
+ fmt->dump_int("osd", op->session ? op->session->osd : -1);
+ fmt->open_array_section("command");
+ for (auto q = op->cmd.begin(); q != op->cmd.end(); ++q)
+ fmt->dump_string("word", *q);
+ fmt->close_section();
+ if (op->target_osd >= 0)
+ fmt->dump_int("target_osd", op->target_osd);
+ else
+ fmt->dump_stream("target_pg") << op->target_pg;
+ fmt->close_section(); // command_op object
+ }
+}
+
+void Objecter::dump_command_ops(Formatter *fmt)
+{
+ // We have a read-lock on the Objecter here
+ fmt->open_array_section("command_ops");
+ for (auto siter = osd_sessions.begin();
+ siter != osd_sessions.end(); ++siter) {
+ auto s = siter->second;
+ shared_lock sl(s->lock);
+ _dump_command_ops(s, fmt);
+ sl.unlock();
+ }
+ _dump_command_ops(homeless_session, fmt);
+ fmt->close_section(); // command_ops array
+}
+
+void Objecter::dump_pool_ops(Formatter *fmt) const
+{
+ fmt->open_array_section("pool_ops");
+ for (auto p = pool_ops.begin(); p != pool_ops.end(); ++p) {
+ auto op = p->second;
+ fmt->open_object_section("pool_op");
+ fmt->dump_unsigned("tid", op->tid);
+ fmt->dump_int("pool", op->pool);
+ fmt->dump_string("name", op->name);
+ fmt->dump_int("operation_type", op->pool_op);
+ fmt->dump_unsigned("crush_rule", op->crush_rule);
+ fmt->dump_stream("snapid") << op->snapid;
+ fmt->dump_stream("last_sent") << op->last_submit;
+ fmt->close_section(); // pool_op object
+ }
+ fmt->close_section(); // pool_ops array
+}
+
+void Objecter::dump_pool_stat_ops(Formatter *fmt) const
+{
+ fmt->open_array_section("pool_stat_ops");
+ for (auto p = poolstat_ops.begin();
+ p != poolstat_ops.end();
+ ++p) {
+ PoolStatOp *op = p->second;
+ fmt->open_object_section("pool_stat_op");
+ fmt->dump_unsigned("tid", op->tid);
+ fmt->dump_stream("last_sent") << op->last_submit;
+
+ fmt->open_array_section("pools");
+ for (const auto& it : op->pools) {
+ fmt->dump_string("pool", it);
+ }
+ fmt->close_section(); // pools array
+
+ fmt->close_section(); // pool_stat_op object
+ }
+ fmt->close_section(); // pool_stat_ops array
+}
+
+void Objecter::dump_statfs_ops(Formatter *fmt) const
+{
+ fmt->open_array_section("statfs_ops");
+ for (auto p = statfs_ops.begin(); p != statfs_ops.end(); ++p) {
+ auto op = p->second;
+ fmt->open_object_section("statfs_op");
+ fmt->dump_unsigned("tid", op->tid);
+ fmt->dump_stream("last_sent") << op->last_submit;
+ fmt->close_section(); // statfs_op object
+ }
+ fmt->close_section(); // statfs_ops array
+}
+
+Objecter::RequestStateHook::RequestStateHook(Objecter *objecter) :
+ m_objecter(objecter)
+{
+}
+
+int Objecter::RequestStateHook::call(std::string_view command,
+ const cmdmap_t& cmdmap,
+ const bufferlist&,
+ Formatter *f,
+ std::ostream& ss,
+ cb::list& out)
+{
+ shared_lock rl(m_objecter->rwlock);
+ m_objecter->dump_requests(f);
+ return 0;
+}
+
+void Objecter::blocklist_self(bool set)
+{
+ ldout(cct, 10) << "blocklist_self " << (set ? "add" : "rm") << dendl;
+
+ vector<string> cmd;
+ cmd.push_back("{\"prefix\":\"osd blocklist\", ");
+ if (set)
+ cmd.push_back("\"blocklistop\":\"add\",");
+ else
+ cmd.push_back("\"blocklistop\":\"rm\",");
+ stringstream ss;
+ // this is somewhat imprecise in that we are blocklisting our first addr only
+ ss << messenger->get_myaddrs().front().get_legacy_str();
+ cmd.push_back("\"addr\":\"" + ss.str() + "\"");
+
+ auto m = new MMonCommand(monc->get_fsid());
+ m->cmd = cmd;
+
+ // NOTE: no fallback to legacy blacklist command implemented here
+ // since this is only used for test code.
+
+ monc->send_mon_message(m);
+}
+
+// commands
+
+void Objecter::handle_command_reply(MCommandReply *m)
+{
+ unique_lock wl(rwlock);
+ if (!initialized) {
+ m->put();
+ return;
+ }
+
+ ConnectionRef con = m->get_connection();
+ auto priv = con->get_priv();
+ auto s = static_cast<OSDSession*>(priv.get());
+ if (!s || s->con != con) {
+ ldout(cct, 7) << __func__ << " no session on con " << con << dendl;
+ m->put();
+ return;
+ }
+
+ shared_lock sl(s->lock);
+ auto p = s->command_ops.find(m->get_tid());
+ if (p == s->command_ops.end()) {
+ ldout(cct, 10) << "handle_command_reply tid " << m->get_tid()
+ << " not found" << dendl;
+ m->put();
+ sl.unlock();
+ return;
+ }
+
+ CommandOp *c = p->second;
+ if (!c->session ||
+ m->get_connection() != c->session->con) {
+ ldout(cct, 10) << "handle_command_reply tid " << m->get_tid()
+ << " got reply from wrong connection "
+ << m->get_connection() << " " << m->get_source_inst()
+ << dendl;
+ m->put();
+ sl.unlock();
+ return;
+ }
+
+ if (m->r == -EAGAIN) {
+ ldout(cct,10) << __func__ << " tid " << m->get_tid()
+ << " got EAGAIN, requesting map and resending" << dendl;
+ // NOTE: This might resend twice... once now, and once again when
+ // we get an updated osdmap and the PG is found to have moved.
+ _maybe_request_map();
+ _send_command(c);
+ m->put();
+ sl.unlock();
+ return;
+ }
+
+ sl.unlock();
+
+ unique_lock sul(s->lock);
+ _finish_command(c, m->r < 0 ? bs::error_code(-m->r, osd_category()) :
+ bs::error_code(), std::move(m->rs),
+ std::move(m->get_data()));
+ sul.unlock();
+
+ m->put();
+}
+
+Objecter::LingerOp::LingerOp(Objecter *o, uint64_t linger_id)
+ : objecter(o),
+ linger_id(linger_id),
+ watch_lock(ceph::make_shared_mutex(
+ fmt::format("LingerOp::watch_lock #{}", linger_id)))
+{}
+
+void Objecter::submit_command(CommandOp *c, ceph_tid_t *ptid)
+{
+ shunique_lock sul(rwlock, ceph::acquire_unique);
+
+ ceph_tid_t tid = ++last_tid;
+ ldout(cct, 10) << "_submit_command " << tid << " " << c->cmd << dendl;
+ c->tid = tid;
+
+ {
+ unique_lock hs_wl(homeless_session->lock);
+ _session_command_op_assign(homeless_session, c);
+ }
+
+ _calc_command_target(c, sul);
+ _assign_command_session(c, sul);
+ if (osd_timeout > timespan(0)) {
+ c->ontimeout = timer.add_event(osd_timeout,
+ [this, c, tid]() {
+ command_op_cancel(
+ c->session, tid,
+ osdc_errc::timed_out); });
+ }
+
+ if (!c->session->is_homeless()) {
+ _send_command(c);
+ } else {
+ _maybe_request_map();
+ }
+ if (c->map_check_error)
+ _send_command_map_check(c);
+ if (ptid)
+ *ptid = tid;
+
+ logger->inc(l_osdc_command_active);
+}
+
+int Objecter::_calc_command_target(CommandOp *c,
+ shunique_lock<ceph::shared_mutex>& sul)
+{
+ ceph_assert(sul.owns_lock() && sul.mutex() == &rwlock);
+
+ c->map_check_error = 0;
+
+ // ignore overlays, just like we do with pg ops
+ c->target.flags |= CEPH_OSD_FLAG_IGNORE_OVERLAY;
+
+ if (c->target_osd >= 0) {
+ if (!osdmap->exists(c->target_osd)) {
+ c->map_check_error = -ENOENT;
+ c->map_check_error_str = "osd dne";
+ c->target.osd = -1;
+ return RECALC_OP_TARGET_OSD_DNE;
+ }
+ if (osdmap->is_down(c->target_osd)) {
+ c->map_check_error = -ENXIO;
+ c->map_check_error_str = "osd down";
+ c->target.osd = -1;
+ return RECALC_OP_TARGET_OSD_DOWN;
+ }
+ c->target.osd = c->target_osd;
+ } else {
+ int ret = _calc_target(&(c->target), nullptr, true);
+ if (ret == RECALC_OP_TARGET_POOL_DNE) {
+ c->map_check_error = -ENOENT;
+ c->map_check_error_str = "pool dne";
+ c->target.osd = -1;
+ return ret;
+ } else if (ret == RECALC_OP_TARGET_OSD_DOWN) {
+ c->map_check_error = -ENXIO;
+ c->map_check_error_str = "osd down";
+ c->target.osd = -1;
+ return ret;
+ }
+ }
+
+ OSDSession *s;
+ int r = _get_session(c->target.osd, &s, sul);
+ ceph_assert(r != -EAGAIN); /* shouldn't happen as we're holding the write lock */
+
+ if (c->session != s) {
+ put_session(s);
+ return RECALC_OP_TARGET_NEED_RESEND;
+ }
+
+ put_session(s);
+
+ ldout(cct, 20) << "_recalc_command_target " << c->tid << " no change, "
+ << c->session << dendl;
+
+ return RECALC_OP_TARGET_NO_ACTION;
+}
+
+void Objecter::_assign_command_session(CommandOp *c,
+ shunique_lock<ceph::shared_mutex>& sul)
+{
+ ceph_assert(sul.owns_lock() && sul.mutex() == &rwlock);
+
+ OSDSession *s;
+ int r = _get_session(c->target.osd, &s, sul);
+ ceph_assert(r != -EAGAIN); /* shouldn't happen as we're holding the write lock */
+
+ if (c->session != s) {
+ if (c->session) {
+ OSDSession *cs = c->session;
+ unique_lock csl(cs->lock);
+ _session_command_op_remove(c->session, c);
+ csl.unlock();
+ }
+ unique_lock sl(s->lock);
+ _session_command_op_assign(s, c);
+ }
+
+ put_session(s);
+}
+
+void Objecter::_send_command(CommandOp *c)
+{
+ ldout(cct, 10) << "_send_command " << c->tid << dendl;
+ ceph_assert(c->session);
+ ceph_assert(c->session->con);
+ auto m = new MCommand(monc->monmap.fsid);
+ m->cmd = c->cmd;
+ m->set_data(c->inbl);
+ m->set_tid(c->tid);
+ c->session->con->send_message(m);
+ logger->inc(l_osdc_command_send);
+}
+
+int Objecter::command_op_cancel(OSDSession *s, ceph_tid_t tid,
+ bs::error_code ec)
+{
+ ceph_assert(initialized);
+
+ unique_lock wl(rwlock);
+
+ auto it = s->command_ops.find(tid);
+ if (it == s->command_ops.end()) {
+ ldout(cct, 10) << __func__ << " tid " << tid << " dne" << dendl;
+ return -ENOENT;
+ }
+
+ ldout(cct, 10) << __func__ << " tid " << tid << dendl;
+
+ CommandOp *op = it->second;
+ _command_cancel_map_check(op);
+ unique_lock sl(op->session->lock);
+ _finish_command(op, ec, {}, {});
+ sl.unlock();
+ return 0;
+}
+
+void Objecter::_finish_command(CommandOp *c, bs::error_code ec,
+ string&& rs, cb::list&& bl)
+{
+ // rwlock is locked unique
+ // session lock is locked
+
+ ldout(cct, 10) << "_finish_command " << c->tid << " = " << ec << " "
+ << rs << dendl;
+
+ if (c->onfinish)
+ c->onfinish->defer(std::move(c->onfinish), ec, std::move(rs), std::move(bl));
+
+ if (c->ontimeout && ec != bs::errc::timed_out)
+ timer.cancel_event(c->ontimeout);
+
+ _session_command_op_remove(c->session, c);
+
+ c->put();
+
+ logger->dec(l_osdc_command_active);
+}
+
+Objecter::OSDSession::~OSDSession()
+{
+ // Caller is responsible for re-assigning or
+ // destroying any ops that were assigned to us
+ ceph_assert(ops.empty());
+ ceph_assert(linger_ops.empty());
+ ceph_assert(command_ops.empty());
+}
+
+Objecter::Objecter(CephContext *cct,
+ Messenger *m, MonClient *mc,
+ boost::asio::io_context& service) :
+ Dispatcher(cct), messenger(m), monc(mc), service(service)
+{
+ mon_timeout = cct->_conf.get_val<std::chrono::seconds>("rados_mon_op_timeout");
+ osd_timeout = cct->_conf.get_val<std::chrono::seconds>("rados_osd_op_timeout");
+}
+
+Objecter::~Objecter()
+{
+ ceph_assert(homeless_session->get_nref() == 1);
+ ceph_assert(num_homeless_ops == 0);
+ homeless_session->put();
+
+ ceph_assert(osd_sessions.empty());
+ ceph_assert(poolstat_ops.empty());
+ ceph_assert(statfs_ops.empty());
+ ceph_assert(pool_ops.empty());
+ ceph_assert(waiting_for_map.empty());
+ ceph_assert(linger_ops.empty());
+ ceph_assert(check_latest_map_lingers.empty());
+ ceph_assert(check_latest_map_ops.empty());
+ ceph_assert(check_latest_map_commands.empty());
+
+ ceph_assert(!m_request_state_hook);
+ ceph_assert(!logger);
+}
+
+/**
+ * Wait until this OSD map epoch is received before
+ * sending any more operations to OSDs. Use this
+ * when it is known that the client can't trust
+ * anything from before this epoch (e.g. due to
+ * client blocklist at this epoch).
+ */
+void Objecter::set_epoch_barrier(epoch_t epoch)
+{
+ unique_lock wl(rwlock);
+
+ ldout(cct, 7) << __func__ << ": barrier " << epoch << " (was "
+ << epoch_barrier << ") current epoch " << osdmap->get_epoch()
+ << dendl;
+ if (epoch > epoch_barrier) {
+ epoch_barrier = epoch;
+ _maybe_request_map();
+ }
+}
+
+
+
+hobject_t Objecter::enumerate_objects_begin()
+{
+ return hobject_t();
+}
+
+hobject_t Objecter::enumerate_objects_end()
+{
+ return hobject_t::get_max();
+}
+
+template<typename T>
+struct EnumerationContext {
+ Objecter* objecter;
+ const hobject_t end;
+ const cb::list filter;
+ uint32_t max;
+ const object_locator_t oloc;
+ std::vector<T> ls;
+private:
+ fu2::unique_function<void(bs::error_code,
+ std::vector<T>,
+ hobject_t) &&> on_finish;
+public:
+ epoch_t epoch = 0;
+ int budget = -1;
+
+ EnumerationContext(Objecter* objecter,
+ hobject_t end, cb::list filter,
+ uint32_t max, object_locator_t oloc,
+ decltype(on_finish) on_finish)
+ : objecter(objecter), end(std::move(end)), filter(std::move(filter)),
+ max(max), oloc(std::move(oloc)), on_finish(std::move(on_finish)) {}
+
+ void operator()(bs::error_code ec,
+ std::vector<T> v,
+ hobject_t h) && {
+ if (budget >= 0) {
+ objecter->put_op_budget_bytes(budget);
+ budget = -1;
+ }
+
+ std::move(on_finish)(ec, std::move(v), std::move(h));
+ }
+};
+
+template<typename T>
+struct CB_EnumerateReply {
+ cb::list bl;
+
+ Objecter* objecter;
+ std::unique_ptr<EnumerationContext<T>> ctx;
+
+ CB_EnumerateReply(Objecter* objecter,
+ std::unique_ptr<EnumerationContext<T>>&& ctx) :
+ objecter(objecter), ctx(std::move(ctx)) {}
+
+ void operator()(bs::error_code ec) {
+ objecter->_enumerate_reply(std::move(bl), ec, std::move(ctx));
+ }
+};
+
+template<typename T>
+void Objecter::enumerate_objects(
+ int64_t pool_id,
+ std::string_view ns,
+ hobject_t start,
+ hobject_t end,
+ const uint32_t max,
+ const cb::list& filter_bl,
+ fu2::unique_function<void(bs::error_code,
+ std::vector<T>,
+ hobject_t) &&> on_finish) {
+ if (!end.is_max() && start > end) {
+ lderr(cct) << __func__ << ": start " << start << " > end " << end << dendl;
+ std::move(on_finish)(osdc_errc::precondition_violated, {}, {});
+ return;
+ }
+
+ if (max < 1) {
+ lderr(cct) << __func__ << ": result size may not be zero" << dendl;
+ std::move(on_finish)(osdc_errc::precondition_violated, {}, {});
+ return;
+ }
+
+ if (start.is_max()) {
+ std::move(on_finish)({}, {}, {});
+ return;
+ }
+
+ shared_lock rl(rwlock);
+ ceph_assert(osdmap->get_epoch());
+ if (!osdmap->test_flag(CEPH_OSDMAP_SORTBITWISE)) {
+ rl.unlock();
+ lderr(cct) << __func__ << ": SORTBITWISE cluster flag not set" << dendl;
+ std::move(on_finish)(osdc_errc::not_supported, {}, {});
+ return;
+ }
+ const pg_pool_t* p = osdmap->get_pg_pool(pool_id);
+ if (!p) {
+ lderr(cct) << __func__ << ": pool " << pool_id << " DNE in osd epoch "
+ << osdmap->get_epoch() << dendl;
+ rl.unlock();
+ std::move(on_finish)(osdc_errc::pool_dne, {}, {});
+ return;
+ } else {
+ rl.unlock();
+ }
+
+ _issue_enumerate(start,
+ std::make_unique<EnumerationContext<T>>(
+ this, std::move(end), filter_bl,
+ max, object_locator_t{pool_id, ns},
+ std::move(on_finish)));
+}
+
+template
+void Objecter::enumerate_objects<librados::ListObjectImpl>(
+ int64_t pool_id,
+ std::string_view ns,
+ hobject_t start,
+ hobject_t end,
+ const uint32_t max,
+ const cb::list& filter_bl,
+ fu2::unique_function<void(bs::error_code,
+ std::vector<librados::ListObjectImpl>,
+ hobject_t) &&> on_finish);
+
+template
+void Objecter::enumerate_objects<neorados::Entry>(
+ int64_t pool_id,
+ std::string_view ns,
+ hobject_t start,
+ hobject_t end,
+ const uint32_t max,
+ const cb::list& filter_bl,
+ fu2::unique_function<void(bs::error_code,
+ std::vector<neorados::Entry>,
+ hobject_t) &&> on_finish);
+
+
+
+template<typename T>
+void Objecter::_issue_enumerate(hobject_t start,
+ std::unique_ptr<EnumerationContext<T>> ctx) {
+ ObjectOperation op;
+ auto c = ctx.get();
+ op.pg_nls(c->max, c->filter, start, osdmap->get_epoch());
+ auto on_ack = std::make_unique<CB_EnumerateReply<T>>(this, std::move(ctx));
+ // I hate having to do this. Try to find a cleaner way
+ // later.
+ auto epoch = &c->epoch;
+ auto budget = &c->budget;
+ auto pbl = &on_ack->bl;
+
+ // Issue. See you later in _enumerate_reply
+ pg_read(start.get_hash(),
+ c->oloc, op, pbl, 0,
+ Op::OpComp::create(service.get_executor(),
+ [c = std::move(on_ack)]
+ (bs::error_code ec) mutable {
+ (*c)(ec);
+ }), epoch, budget);
+}
+
+template
+void Objecter::_issue_enumerate<librados::ListObjectImpl>(
+ hobject_t start,
+ std::unique_ptr<EnumerationContext<librados::ListObjectImpl>> ctx);
+template
+void Objecter::_issue_enumerate<neorados::Entry>(
+ hobject_t start, std::unique_ptr<EnumerationContext<neorados::Entry>> ctx);
+
+template<typename T>
+void Objecter::_enumerate_reply(
+ cb::list&& bl,
+ bs::error_code ec,
+ std::unique_ptr<EnumerationContext<T>>&& ctx)
+{
+ if (ec) {
+ std::move(*ctx)(ec, {}, {});
+ return;
+ }
+
+ // Decode the results
+ auto iter = bl.cbegin();
+ pg_nls_response_template<T> response;
+
+ try {
+ response.decode(iter);
+ if (!iter.end()) {
+ // extra_info isn't used anywhere. We do this solely to preserve
+ // backward compatibility
+ cb::list legacy_extra_info;
+ decode(legacy_extra_info, iter);
+ }
+ } catch (const bs::system_error& e) {
+ std::move(*ctx)(e.code(), {}, {});
+ return;
+ }
+
+ shared_lock rl(rwlock);
+ auto pool = osdmap->get_pg_pool(ctx->oloc.get_pool());
+ rl.unlock();
+ if (!pool) {
+ // pool is gone, drop any results which are now meaningless.
+ std::move(*ctx)(osdc_errc::pool_dne, {}, {});
+ return;
+ }
+
+ hobject_t next;
+ if ((response.handle <= ctx->end)) {
+ next = response.handle;
+ } else {
+ next = ctx->end;
+
+ // drop anything after 'end'
+ while (!response.entries.empty()) {
+ uint32_t hash = response.entries.back().locator.empty() ?
+ pool->hash_key(response.entries.back().oid,
+ response.entries.back().nspace) :
+ pool->hash_key(response.entries.back().locator,
+ response.entries.back().nspace);
+ hobject_t last(response.entries.back().oid,
+ response.entries.back().locator,
+ CEPH_NOSNAP,
+ hash,
+ ctx->oloc.get_pool(),
+ response.entries.back().nspace);
+ if (last < ctx->end)
+ break;
+ response.entries.pop_back();
+ }
+ }
+
+ if (response.entries.size() <= ctx->max) {
+ ctx->max -= response.entries.size();
+ std::move(response.entries.begin(), response.entries.end(),
+ std::back_inserter(ctx->ls));
+ } else {
+ auto i = response.entries.begin();
+ while (ctx->max > 0) {
+ ctx->ls.push_back(std::move(*i));
+ --(ctx->max);
+ ++i;
+ }
+ uint32_t hash =
+ i->locator.empty() ?
+ pool->hash_key(i->oid, i->nspace) :
+ pool->hash_key(i->locator, i->nspace);
+
+ next = hobject_t{i->oid, i->locator,
+ CEPH_NOSNAP,
+ hash,
+ ctx->oloc.get_pool(),
+ i->nspace};
+ }
+
+ if (next == ctx->end || ctx->max == 0) {
+ std::move(*ctx)(ec, std::move(ctx->ls), std::move(next));
+ } else {
+ _issue_enumerate(next, std::move(ctx));
+ }
+}
+
+template
+void Objecter::_enumerate_reply<librados::ListObjectImpl>(
+ cb::list&& bl,
+ bs::error_code ec,
+ std::unique_ptr<EnumerationContext<librados::ListObjectImpl>>&& ctx);
+
+template
+void Objecter::_enumerate_reply<neorados::Entry>(
+ cb::list&& bl,
+ bs::error_code ec,
+ std::unique_ptr<EnumerationContext<neorados::Entry>>&& ctx);
+
+namespace {
+ using namespace librados;
+
+ template <typename T>
+ void do_decode(std::vector<T>& items, std::vector<cb::list>& bls)
+ {
+ for (auto bl : bls) {
+ auto p = bl.cbegin();
+ T t;
+ decode(t, p);
+ items.push_back(t);
+ }
+ }
+
+ struct C_ObjectOperation_scrub_ls : public Context {
+ cb::list bl;
+ uint32_t* interval;
+ std::vector<inconsistent_obj_t> *objects = nullptr;
+ std::vector<inconsistent_snapset_t> *snapsets = nullptr;
+ int* rval;
+
+ C_ObjectOperation_scrub_ls(uint32_t* interval,
+ std::vector<inconsistent_obj_t>* objects,
+ int* rval)
+ : interval(interval), objects(objects), rval(rval) {}
+ C_ObjectOperation_scrub_ls(uint32_t* interval,
+ std::vector<inconsistent_snapset_t>* snapsets,
+ int* rval)
+ : interval(interval), snapsets(snapsets), rval(rval) {}
+ void finish(int r) override {
+ if (r < 0 && r != -EAGAIN) {
+ if (rval)
+ *rval = r;
+ return;
+ }
+
+ if (rval)
+ *rval = 0;
+
+ try {
+ decode();
+ } catch (cb::error&) {
+ if (rval)
+ *rval = -EIO;
+ }
+ }
+ private:
+ void decode() {
+ scrub_ls_result_t result;
+ auto p = bl.cbegin();
+ result.decode(p);
+ *interval = result.interval;
+ if (objects) {
+ do_decode(*objects, result.vals);
+ } else {
+ do_decode(*snapsets, result.vals);
+ }
+ }
+ };
+
+ template <typename T>
+ void do_scrub_ls(::ObjectOperation* op,
+ const scrub_ls_arg_t& arg,
+ std::vector<T> *items,
+ uint32_t* interval,
+ int* rval)
+ {
+ OSDOp& osd_op = op->add_op(CEPH_OSD_OP_SCRUBLS);
+ op->flags |= CEPH_OSD_FLAG_PGOP;
+ ceph_assert(interval);
+ arg.encode(osd_op.indata);
+ unsigned p = op->ops.size() - 1;
+ auto h = new C_ObjectOperation_scrub_ls{interval, items, rval};
+ op->set_handler(h);
+ op->out_bl[p] = &h->bl;
+ op->out_rval[p] = rval;
+ }
+}
+
+void ::ObjectOperation::scrub_ls(const librados::object_id_t& start_after,
+ uint64_t max_to_get,
+ std::vector<librados::inconsistent_obj_t>* objects,
+ uint32_t* interval,
+ int* rval)
+{
+ scrub_ls_arg_t arg = {*interval, 0, start_after, max_to_get};
+ do_scrub_ls(this, arg, objects, interval, rval);
+}
+
+void ::ObjectOperation::scrub_ls(const librados::object_id_t& start_after,
+ uint64_t max_to_get,
+ std::vector<librados::inconsistent_snapset_t> *snapsets,
+ uint32_t *interval,
+ int *rval)
+{
+ scrub_ls_arg_t arg = {*interval, 1, start_after, max_to_get};
+ do_scrub_ls(this, arg, snapsets, interval, rval);
+}
diff --git a/src/osdc/Objecter.h b/src/osdc/Objecter.h
new file mode 100644
index 000000000..d9d723dca
--- /dev/null
+++ b/src/osdc/Objecter.h
@@ -0,0 +1,3924 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+#ifndef CEPH_OBJECTER_H
+#define CEPH_OBJECTER_H
+
+#include <condition_variable>
+#include <list>
+#include <map>
+#include <mutex>
+#include <memory>
+#include <sstream>
+#include <string>
+#include <string_view>
+#include <type_traits>
+#include <variant>
+
+#include <boost/container/small_vector.hpp>
+#include <boost/asio.hpp>
+
+#include <fmt/format.h>
+
+#include "include/buffer.h"
+#include "include/ceph_assert.h"
+#include "include/ceph_fs.h"
+#include "include/common_fwd.h"
+#include "include/expected.hpp"
+#include "include/types.h"
+#include "include/rados/rados_types.hpp"
+#include "include/function2.hpp"
+#include "include/neorados/RADOS_Decodable.hpp"
+
+#include "common/admin_socket.h"
+#include "common/async/completion.h"
+#include "common/ceph_time.h"
+#include "common/ceph_mutex.h"
+#include "common/ceph_timer.h"
+#include "common/config_obs.h"
+#include "common/shunique_lock.h"
+#include "common/zipkin_trace.h"
+#include "common/Throttle.h"
+
+#include "mon/MonClient.h"
+
+#include "messages/MOSDOp.h"
+#include "msg/Dispatcher.h"
+
+#include "osd/OSDMap.h"
+
+class Context;
+class Messenger;
+class MonClient;
+class Message;
+
+class MPoolOpReply;
+
+class MGetPoolStatsReply;
+class MStatfsReply;
+class MCommandReply;
+class MWatchNotify;
+struct ObjectOperation;
+template<typename T>
+struct EnumerationContext;
+template<typename t>
+struct CB_EnumerateReply;
+
+inline constexpr std::size_t osdc_opvec_len = 2;
+using osdc_opvec = boost::container::small_vector<OSDOp, osdc_opvec_len>;
+
+// -----------------------------------------
+
+struct ObjectOperation {
+ osdc_opvec ops;
+ int flags = 0;
+ int priority = 0;
+
+ boost::container::small_vector<ceph::buffer::list*, osdc_opvec_len> out_bl;
+ boost::container::small_vector<
+ fu2::unique_function<void(boost::system::error_code, int,
+ const ceph::buffer::list& bl) &&>,
+ osdc_opvec_len> out_handler;
+ boost::container::small_vector<int*, osdc_opvec_len> out_rval;
+ boost::container::small_vector<boost::system::error_code*,
+ osdc_opvec_len> out_ec;
+
+ ObjectOperation() = default;
+ ObjectOperation(const ObjectOperation&) = delete;
+ ObjectOperation& operator =(const ObjectOperation&) = delete;
+ ObjectOperation(ObjectOperation&&) = default;
+ ObjectOperation& operator =(ObjectOperation&&) = default;
+ ~ObjectOperation() = default;
+
+ size_t size() const {
+ return ops.size();
+ }
+
+ void clear() {
+ ops.clear();
+ flags = 0;
+ priority = 0;
+ out_bl.clear();
+ out_handler.clear();
+ out_rval.clear();
+ out_ec.clear();
+ }
+
+ void set_last_op_flags(int flags) {
+ ceph_assert(!ops.empty());
+ ops.rbegin()->op.flags = flags;
+ }
+
+
+ void set_handler(fu2::unique_function<void(boost::system::error_code, int,
+ const ceph::buffer::list&) &&> f) {
+ if (f) {
+ if (out_handler.back()) {
+ // This happens seldom enough that we may as well keep folding
+ // functions together when we get another one rather than
+ // using a container.
+ out_handler.back() =
+ [f = std::move(f),
+ g = std::move(std::move(out_handler.back()))]
+ (boost::system::error_code ec, int r,
+ const ceph::buffer::list& bl) mutable {
+ std::move(g)(ec, r, bl);
+ std::move(f)(ec, r, bl);
+ };
+ } else {
+ out_handler.back() = std::move(f);
+ }
+ }
+ ceph_assert(ops.size() == out_handler.size());
+ }
+
+ void set_handler(Context *c) {
+ if (c)
+ set_handler([c = std::unique_ptr<Context>(c)](boost::system::error_code,
+ int r,
+ const ceph::buffer::list&) mutable {
+ c.release()->complete(r);
+ });
+
+ }
+
+ OSDOp& add_op(int op) {
+ ops.emplace_back();
+ ops.back().op.op = op;
+ out_bl.push_back(nullptr);
+ ceph_assert(ops.size() == out_bl.size());
+ out_handler.emplace_back();
+ ceph_assert(ops.size() == out_handler.size());
+ out_rval.push_back(nullptr);
+ ceph_assert(ops.size() == out_rval.size());
+ out_ec.push_back(nullptr);
+ ceph_assert(ops.size() == out_ec.size());
+ return ops.back();
+ }
+ void add_data(int op, uint64_t off, uint64_t len, ceph::buffer::list& bl) {
+ OSDOp& osd_op = add_op(op);
+ osd_op.op.extent.offset = off;
+ osd_op.op.extent.length = len;
+ osd_op.indata.claim_append(bl);
+ }
+ void add_writesame(int op, uint64_t off, uint64_t write_len,
+ ceph::buffer::list& bl) {
+ OSDOp& osd_op = add_op(op);
+ osd_op.op.writesame.offset = off;
+ osd_op.op.writesame.length = write_len;
+ osd_op.op.writesame.data_length = bl.length();
+ osd_op.indata.claim_append(bl);
+ }
+ void add_xattr(int op, const char *name, const ceph::buffer::list& data) {
+ OSDOp& osd_op = add_op(op);
+ osd_op.op.xattr.name_len = (name ? strlen(name) : 0);
+ osd_op.op.xattr.value_len = data.length();
+ if (name)
+ osd_op.indata.append(name, osd_op.op.xattr.name_len);
+ osd_op.indata.append(data);
+ }
+ void add_xattr_cmp(int op, const char *name, uint8_t cmp_op,
+ uint8_t cmp_mode, const ceph::buffer::list& data) {
+ OSDOp& osd_op = add_op(op);
+ osd_op.op.xattr.name_len = (name ? strlen(name) : 0);
+ osd_op.op.xattr.value_len = data.length();
+ osd_op.op.xattr.cmp_op = cmp_op;
+ osd_op.op.xattr.cmp_mode = cmp_mode;
+ if (name)
+ osd_op.indata.append(name, osd_op.op.xattr.name_len);
+ osd_op.indata.append(data);
+ }
+ void add_xattr(int op, std::string_view name, const ceph::buffer::list& data) {
+ OSDOp& osd_op = add_op(op);
+ osd_op.op.xattr.name_len = name.size();
+ osd_op.op.xattr.value_len = data.length();
+ osd_op.indata.append(name.data(), osd_op.op.xattr.name_len);
+ osd_op.indata.append(data);
+ }
+ void add_xattr_cmp(int op, std::string_view name, uint8_t cmp_op,
+ uint8_t cmp_mode, const ceph::buffer::list& data) {
+ OSDOp& osd_op = add_op(op);
+ osd_op.op.xattr.name_len = name.size();
+ osd_op.op.xattr.value_len = data.length();
+ osd_op.op.xattr.cmp_op = cmp_op;
+ osd_op.op.xattr.cmp_mode = cmp_mode;
+ if (!name.empty())
+ osd_op.indata.append(name.data(), osd_op.op.xattr.name_len);
+ osd_op.indata.append(data);
+ }
+ void add_call(int op, std::string_view cname, std::string_view method,
+ const ceph::buffer::list &indata,
+ ceph::buffer::list *outbl, Context *ctx, int *prval) {
+ OSDOp& osd_op = add_op(op);
+
+ unsigned p = ops.size() - 1;
+ set_handler(ctx);
+ out_bl[p] = outbl;
+ out_rval[p] = prval;
+
+ osd_op.op.cls.class_len = cname.size();
+ osd_op.op.cls.method_len = method.size();
+ osd_op.op.cls.indata_len = indata.length();
+ osd_op.indata.append(cname.data(), osd_op.op.cls.class_len);
+ osd_op.indata.append(method.data(), osd_op.op.cls.method_len);
+ osd_op.indata.append(indata);
+ }
+ void add_call(int op, std::string_view cname, std::string_view method,
+ const ceph::buffer::list &indata,
+ fu2::unique_function<void(boost::system::error_code,
+ const ceph::buffer::list&) &&> f) {
+ OSDOp& osd_op = add_op(op);
+
+ set_handler([f = std::move(f)](boost::system::error_code ec,
+ int,
+ const ceph::buffer::list& bl) mutable {
+ std::move(f)(ec, bl);
+ });
+
+ osd_op.op.cls.class_len = cname.size();
+ osd_op.op.cls.method_len = method.size();
+ osd_op.op.cls.indata_len = indata.length();
+ osd_op.indata.append(cname.data(), osd_op.op.cls.class_len);
+ osd_op.indata.append(method.data(), osd_op.op.cls.method_len);
+ osd_op.indata.append(indata);
+ }
+ void add_call(int op, std::string_view cname, std::string_view method,
+ const ceph::buffer::list &indata,
+ fu2::unique_function<void(boost::system::error_code, int,
+ const ceph::buffer::list&) &&> f) {
+ OSDOp& osd_op = add_op(op);
+
+ set_handler([f = std::move(f)](boost::system::error_code ec,
+ int r,
+ const ceph::buffer::list& bl) mutable {
+ std::move(f)(ec, r, bl);
+ });
+
+ osd_op.op.cls.class_len = cname.size();
+ osd_op.op.cls.method_len = method.size();
+ osd_op.op.cls.indata_len = indata.length();
+ osd_op.indata.append(cname.data(), osd_op.op.cls.class_len);
+ osd_op.indata.append(method.data(), osd_op.op.cls.method_len);
+ osd_op.indata.append(indata);
+ }
+ void add_pgls(int op, uint64_t count, collection_list_handle_t cookie,
+ epoch_t start_epoch) {
+ using ceph::encode;
+ OSDOp& osd_op = add_op(op);
+ osd_op.op.pgls.count = count;
+ osd_op.op.pgls.start_epoch = start_epoch;
+ encode(cookie, osd_op.indata);
+ }
+ void add_pgls_filter(int op, uint64_t count, const ceph::buffer::list& filter,
+ collection_list_handle_t cookie, epoch_t start_epoch) {
+ using ceph::encode;
+ OSDOp& osd_op = add_op(op);
+ osd_op.op.pgls.count = count;
+ osd_op.op.pgls.start_epoch = start_epoch;
+ std::string cname = "pg";
+ std::string mname = "filter";
+ encode(cname, osd_op.indata);
+ encode(mname, osd_op.indata);
+ osd_op.indata.append(filter);
+ encode(cookie, osd_op.indata);
+ }
+ void add_alloc_hint(int op, uint64_t expected_object_size,
+ uint64_t expected_write_size,
+ uint32_t flags) {
+ OSDOp& osd_op = add_op(op);
+ osd_op.op.alloc_hint.expected_object_size = expected_object_size;
+ osd_op.op.alloc_hint.expected_write_size = expected_write_size;
+ osd_op.op.alloc_hint.flags = flags;
+ }
+
+ // ------
+
+ // pg
+ void pg_ls(uint64_t count, ceph::buffer::list& filter,
+ collection_list_handle_t cookie, epoch_t start_epoch) {
+ if (filter.length() == 0)
+ add_pgls(CEPH_OSD_OP_PGLS, count, cookie, start_epoch);
+ else
+ add_pgls_filter(CEPH_OSD_OP_PGLS_FILTER, count, filter, cookie,
+ start_epoch);
+ flags |= CEPH_OSD_FLAG_PGOP;
+ }
+
+ void pg_nls(uint64_t count, const ceph::buffer::list& filter,
+ collection_list_handle_t cookie, epoch_t start_epoch) {
+ if (filter.length() == 0)
+ add_pgls(CEPH_OSD_OP_PGNLS, count, cookie, start_epoch);
+ else
+ add_pgls_filter(CEPH_OSD_OP_PGNLS_FILTER, count, filter, cookie,
+ start_epoch);
+ flags |= CEPH_OSD_FLAG_PGOP;
+ }
+
+ void scrub_ls(const librados::object_id_t& start_after,
+ uint64_t max_to_get,
+ std::vector<librados::inconsistent_obj_t> *objects,
+ uint32_t *interval,
+ int *rval);
+ void scrub_ls(const librados::object_id_t& start_after,
+ uint64_t max_to_get,
+ std::vector<librados::inconsistent_snapset_t> *objects,
+ uint32_t *interval,
+ int *rval);
+
+ void create(bool excl) {
+ OSDOp& o = add_op(CEPH_OSD_OP_CREATE);
+ o.op.flags = (excl ? CEPH_OSD_OP_FLAG_EXCL : 0);
+ }
+
+ struct CB_ObjectOperation_stat {
+ ceph::buffer::list bl;
+ uint64_t *psize;
+ ceph::real_time *pmtime;
+ time_t *ptime;
+ struct timespec *pts;
+ int *prval;
+ boost::system::error_code* pec;
+ CB_ObjectOperation_stat(uint64_t *ps, ceph::real_time *pm, time_t *pt, struct timespec *_pts,
+ int *prval, boost::system::error_code* pec)
+ : psize(ps), pmtime(pm), ptime(pt), pts(_pts), prval(prval), pec(pec) {}
+ void operator()(boost::system::error_code ec, int r, const ceph::buffer::list& bl) {
+ using ceph::decode;
+ if (r >= 0) {
+ auto p = bl.cbegin();
+ try {
+ uint64_t size;
+ ceph::real_time mtime;
+ decode(size, p);
+ decode(mtime, p);
+ if (psize)
+ *psize = size;
+ if (pmtime)
+ *pmtime = mtime;
+ if (ptime)
+ *ptime = ceph::real_clock::to_time_t(mtime);
+ if (pts)
+ *pts = ceph::real_clock::to_timespec(mtime);
+ } catch (const ceph::buffer::error& e) {
+ if (prval)
+ *prval = -EIO;
+ if (pec)
+ *pec = e.code();
+ }
+ }
+ }
+ };
+ void stat(uint64_t *psize, ceph::real_time *pmtime, int *prval) {
+ add_op(CEPH_OSD_OP_STAT);
+ set_handler(CB_ObjectOperation_stat(psize, pmtime, nullptr, nullptr, prval,
+ nullptr));
+ out_rval.back() = prval;
+ }
+ void stat(uint64_t *psize, ceph::real_time *pmtime,
+ boost::system::error_code* ec) {
+ add_op(CEPH_OSD_OP_STAT);
+ set_handler(CB_ObjectOperation_stat(psize, pmtime, nullptr, nullptr,
+ nullptr, ec));
+ out_ec.back() = ec;
+ }
+ void stat(uint64_t *psize, time_t *ptime, int *prval) {
+ add_op(CEPH_OSD_OP_STAT);
+ set_handler(CB_ObjectOperation_stat(psize, nullptr, ptime, nullptr, prval,
+ nullptr));
+ out_rval.back() = prval;
+ }
+ void stat(uint64_t *psize, struct timespec *pts, int *prval) {
+ add_op(CEPH_OSD_OP_STAT);
+ set_handler(CB_ObjectOperation_stat(psize, nullptr, nullptr, pts, prval, nullptr));
+ out_rval.back() = prval;
+ }
+ void stat(uint64_t *psize, ceph::real_time *pmtime, std::nullptr_t) {
+ add_op(CEPH_OSD_OP_STAT);
+ set_handler(CB_ObjectOperation_stat(psize, pmtime, nullptr, nullptr, nullptr,
+ nullptr));
+ }
+ void stat(uint64_t *psize, time_t *ptime, std::nullptr_t) {
+ add_op(CEPH_OSD_OP_STAT);
+ set_handler(CB_ObjectOperation_stat(psize, nullptr, ptime, nullptr, nullptr,
+ nullptr));
+ }
+ void stat(uint64_t *psize, struct timespec *pts, std::nullptr_t) {
+ add_op(CEPH_OSD_OP_STAT);
+ set_handler(CB_ObjectOperation_stat(psize, nullptr, nullptr, pts, nullptr,
+ nullptr));
+ }
+ void stat(uint64_t *psize, std::nullptr_t, std::nullptr_t) {
+ add_op(CEPH_OSD_OP_STAT);
+ set_handler(CB_ObjectOperation_stat(psize, nullptr, nullptr, nullptr,
+ nullptr, nullptr));
+ }
+
+ // object cmpext
+ struct CB_ObjectOperation_cmpext {
+ int* prval = nullptr;
+ boost::system::error_code* ec = nullptr;
+ std::size_t* s = nullptr;
+ explicit CB_ObjectOperation_cmpext(int *prval)
+ : prval(prval) {}
+ CB_ObjectOperation_cmpext(boost::system::error_code* ec, std::size_t* s)
+ : ec(ec), s(s) {}
+
+ void operator()(boost::system::error_code ec, int r, const ceph::buffer::list&) {
+ if (prval)
+ *prval = r;
+ if (this->ec)
+ *this->ec = ec;
+ if (s)
+ *s = static_cast<std::size_t>(-(MAX_ERRNO - r));
+ }
+ };
+
+ void cmpext(uint64_t off, ceph::buffer::list& cmp_bl, int *prval) {
+ add_data(CEPH_OSD_OP_CMPEXT, off, cmp_bl.length(), cmp_bl);
+ set_handler(CB_ObjectOperation_cmpext(prval));
+ out_rval.back() = prval;
+ }
+
+ void cmpext(uint64_t off, ceph::buffer::list&& cmp_bl, boost::system::error_code* ec,
+ std::size_t* s) {
+ add_data(CEPH_OSD_OP_CMPEXT, off, cmp_bl.length(), cmp_bl);
+ set_handler(CB_ObjectOperation_cmpext(ec, s));
+ out_ec.back() = ec;
+ }
+
+ // Used by C API
+ void cmpext(uint64_t off, uint64_t cmp_len, const char *cmp_buf, int *prval) {
+ ceph::buffer::list cmp_bl;
+ cmp_bl.append(cmp_buf, cmp_len);
+ add_data(CEPH_OSD_OP_CMPEXT, off, cmp_len, cmp_bl);
+ set_handler(CB_ObjectOperation_cmpext(prval));
+ out_rval.back() = prval;
+ }
+
+ void read(uint64_t off, uint64_t len, ceph::buffer::list *pbl, int *prval,
+ Context* ctx) {
+ ceph::buffer::list bl;
+ add_data(CEPH_OSD_OP_READ, off, len, bl);
+ unsigned p = ops.size() - 1;
+ out_bl[p] = pbl;
+ out_rval[p] = prval;
+ set_handler(ctx);
+ }
+
+ void read(uint64_t off, uint64_t len, boost::system::error_code* ec,
+ ceph::buffer::list* pbl) {
+ ceph::buffer::list bl;
+ add_data(CEPH_OSD_OP_READ, off, len, bl);
+ out_ec.back() = ec;
+ out_bl.back() = pbl;
+ }
+
+ template<typename Ex>
+ struct CB_ObjectOperation_sparse_read {
+ ceph::buffer::list* data_bl;
+ Ex* extents;
+ int* prval;
+ boost::system::error_code* pec;
+ CB_ObjectOperation_sparse_read(ceph::buffer::list* data_bl,
+ Ex* extents,
+ int* prval,
+ boost::system::error_code* pec)
+ : data_bl(data_bl), extents(extents), prval(prval), pec(pec) {}
+ void operator()(boost::system::error_code ec, int r, const ceph::buffer::list& bl) {
+ auto iter = bl.cbegin();
+ if (r >= 0) {
+ // NOTE: it's possible the sub-op has not been executed but the result
+ // code remains zeroed. Avoid the costly exception handling on a
+ // potential IO path.
+ if (bl.length() > 0) {
+ try {
+ decode(*extents, iter);
+ decode(*data_bl, iter);
+ } catch (const ceph::buffer::error& e) {
+ if (prval)
+ *prval = -EIO;
+ if (pec)
+ *pec = e.code();
+ }
+ } else if (prval) {
+ *prval = -EIO;
+ if (pec)
+ *pec = buffer::errc::end_of_buffer;
+ }
+ }
+ }
+ };
+ void sparse_read(uint64_t off, uint64_t len, std::map<uint64_t, uint64_t>* m,
+ ceph::buffer::list* data_bl, int* prval,
+ uint64_t truncate_size = 0, uint32_t truncate_seq = 0) {
+ ceph::buffer::list bl;
+ add_data(CEPH_OSD_OP_SPARSE_READ, off, len, bl);
+ OSDOp& o = *ops.rbegin();
+ o.op.extent.truncate_size = truncate_size;
+ o.op.extent.truncate_seq = truncate_seq;
+ set_handler(CB_ObjectOperation_sparse_read(data_bl, m, prval, nullptr));
+ out_rval.back() = prval;
+ }
+ void sparse_read(uint64_t off, uint64_t len,
+ boost::system::error_code* ec,
+ std::vector<std::pair<uint64_t, uint64_t>>* m,
+ ceph::buffer::list* data_bl) {
+ ceph::buffer::list bl;
+ add_data(CEPH_OSD_OP_SPARSE_READ, off, len, bl);
+ set_handler(CB_ObjectOperation_sparse_read(data_bl, m, nullptr, ec));
+ out_ec.back() = ec;
+ }
+ void write(uint64_t off, ceph::buffer::list& bl,
+ uint64_t truncate_size,
+ uint32_t truncate_seq) {
+ add_data(CEPH_OSD_OP_WRITE, off, bl.length(), bl);
+ OSDOp& o = *ops.rbegin();
+ o.op.extent.truncate_size = truncate_size;
+ o.op.extent.truncate_seq = truncate_seq;
+ }
+ void write(uint64_t off, ceph::buffer::list& bl) {
+ write(off, bl, 0, 0);
+ }
+ void write_full(ceph::buffer::list& bl) {
+ add_data(CEPH_OSD_OP_WRITEFULL, 0, bl.length(), bl);
+ }
+ void writesame(uint64_t off, uint64_t write_len, ceph::buffer::list& bl) {
+ add_writesame(CEPH_OSD_OP_WRITESAME, off, write_len, bl);
+ }
+ void append(ceph::buffer::list& bl) {
+ add_data(CEPH_OSD_OP_APPEND, 0, bl.length(), bl);
+ }
+ void zero(uint64_t off, uint64_t len) {
+ ceph::buffer::list bl;
+ add_data(CEPH_OSD_OP_ZERO, off, len, bl);
+ }
+ void truncate(uint64_t off) {
+ ceph::buffer::list bl;
+ add_data(CEPH_OSD_OP_TRUNCATE, off, 0, bl);
+ }
+ void remove() {
+ ceph::buffer::list bl;
+ add_data(CEPH_OSD_OP_DELETE, 0, 0, bl);
+ }
+ void mapext(uint64_t off, uint64_t len) {
+ ceph::buffer::list bl;
+ add_data(CEPH_OSD_OP_MAPEXT, off, len, bl);
+ }
+ void sparse_read(uint64_t off, uint64_t len) {
+ ceph::buffer::list bl;
+ add_data(CEPH_OSD_OP_SPARSE_READ, off, len, bl);
+ }
+
+ void checksum(uint8_t type, const ceph::buffer::list &init_value_bl,
+ uint64_t off, uint64_t len, size_t chunk_size,
+ ceph::buffer::list *pbl, int *prval, Context *ctx) {
+ OSDOp& osd_op = add_op(CEPH_OSD_OP_CHECKSUM);
+ osd_op.op.checksum.offset = off;
+ osd_op.op.checksum.length = len;
+ osd_op.op.checksum.type = type;
+ osd_op.op.checksum.chunk_size = chunk_size;
+ osd_op.indata.append(init_value_bl);
+
+ unsigned p = ops.size() - 1;
+ out_bl[p] = pbl;
+ out_rval[p] = prval;
+ set_handler(ctx);
+ }
+
+ // object attrs
+ void getxattr(const char *name, ceph::buffer::list *pbl, int *prval) {
+ ceph::buffer::list bl;
+ add_xattr(CEPH_OSD_OP_GETXATTR, name, bl);
+ unsigned p = ops.size() - 1;
+ out_bl[p] = pbl;
+ out_rval[p] = prval;
+ }
+ void getxattr(std::string_view name, boost::system::error_code* ec,
+ buffer::list *pbl) {
+ ceph::buffer::list bl;
+ add_xattr(CEPH_OSD_OP_GETXATTR, name, bl);
+ out_bl.back() = pbl;
+ out_ec.back() = ec;
+ }
+
+ template<typename Vals>
+ struct CB_ObjectOperation_decodevals {
+ uint64_t max_entries;
+ Vals* pattrs;
+ bool* ptruncated;
+ int* prval;
+ boost::system::error_code* pec;
+ CB_ObjectOperation_decodevals(uint64_t m, Vals* pa,
+ bool *pt, int *pr,
+ boost::system::error_code* pec)
+ : max_entries(m), pattrs(pa), ptruncated(pt), prval(pr), pec(pec) {
+ if (ptruncated) {
+ *ptruncated = false;
+ }
+ }
+ void operator()(boost::system::error_code ec, int r, const ceph::buffer::list& bl) {
+ if (r >= 0) {
+ auto p = bl.cbegin();
+ try {
+ if (pattrs)
+ decode(*pattrs, p);
+ if (ptruncated) {
+ Vals ignore;
+ if (!pattrs) {
+ decode(ignore, p);
+ pattrs = &ignore;
+ }
+ if (!p.end()) {
+ decode(*ptruncated, p);
+ } else {
+ // The OSD did not provide this. Since old OSDs do not
+ // enfoce omap result limits either, we can infer it from
+ // the size of the result
+ *ptruncated = (pattrs->size() == max_entries);
+ }
+ }
+ } catch (const ceph::buffer::error& e) {
+ if (prval)
+ *prval = -EIO;
+ if (pec)
+ *pec = e.code();
+ }
+ }
+ }
+ };
+ template<typename Keys>
+ struct CB_ObjectOperation_decodekeys {
+ uint64_t max_entries;
+ Keys* pattrs;
+ bool *ptruncated;
+ int *prval;
+ boost::system::error_code* pec;
+ CB_ObjectOperation_decodekeys(uint64_t m, Keys* pa, bool *pt,
+ int *pr, boost::system::error_code* pec)
+ : max_entries(m), pattrs(pa), ptruncated(pt), prval(pr), pec(pec) {
+ if (ptruncated) {
+ *ptruncated = false;
+ }
+ }
+ void operator()(boost::system::error_code ec, int r, const ceph::buffer::list& bl) {
+ if (r >= 0) {
+ using ceph::decode;
+ auto p = bl.cbegin();
+ try {
+ if (pattrs)
+ decode(*pattrs, p);
+ if (ptruncated) {
+ Keys ignore;
+ if (!pattrs) {
+ decode(ignore, p);
+ pattrs = &ignore;
+ }
+ if (!p.end()) {
+ decode(*ptruncated, p);
+ } else {
+ // the OSD did not provide this. since old OSDs do not
+ // enforce omap result limits either, we can infer it from
+ // the size of the result
+ *ptruncated = (pattrs->size() == max_entries);
+ }
+ }
+ } catch (const ceph::buffer::error& e) {
+ if (prval)
+ *prval = -EIO;
+ if (pec)
+ *pec = e.code();
+ }
+ }
+ }
+ };
+ struct CB_ObjectOperation_decodewatchers {
+ std::list<obj_watch_t>* pwatchers;
+ int* prval;
+ boost::system::error_code* pec;
+ CB_ObjectOperation_decodewatchers(std::list<obj_watch_t>* pw, int* pr,
+ boost::system::error_code* pec)
+ : pwatchers(pw), prval(pr), pec(pec) {}
+ void operator()(boost::system::error_code ec, int r,
+ const ceph::buffer::list& bl) {
+ if (r >= 0) {
+ auto p = bl.cbegin();
+ try {
+ obj_list_watch_response_t resp;
+ decode(resp, p);
+ if (pwatchers) {
+ for (const auto& watch_item : resp.entries) {
+ obj_watch_t ow;
+ std::string sa = watch_item.addr.get_legacy_str();
+ strncpy(ow.addr, sa.c_str(), sizeof(ow.addr) - 1);
+ ow.addr[sizeof(ow.addr) - 1] = '\0';
+ ow.watcher_id = watch_item.name.num();
+ ow.cookie = watch_item.cookie;
+ ow.timeout_seconds = watch_item.timeout_seconds;
+ pwatchers->push_back(std::move(ow));
+ }
+ }
+ } catch (const ceph::buffer::error& e) {
+ if (prval)
+ *prval = -EIO;
+ if (pec)
+ *pec = e.code();
+ }
+ }
+ }
+ };
+
+ struct CB_ObjectOperation_decodewatchersneo {
+ std::vector<neorados::ObjWatcher>* pwatchers;
+ int* prval;
+ boost::system::error_code* pec;
+ CB_ObjectOperation_decodewatchersneo(std::vector<neorados::ObjWatcher>* pw,
+ int* pr,
+ boost::system::error_code* pec)
+ : pwatchers(pw), prval(pr), pec(pec) {}
+ void operator()(boost::system::error_code ec, int r,
+ const ceph::buffer::list& bl) {
+ if (r >= 0) {
+ auto p = bl.cbegin();
+ try {
+ obj_list_watch_response_t resp;
+ decode(resp, p);
+ if (pwatchers) {
+ for (const auto& watch_item : resp.entries) {
+ neorados::ObjWatcher ow;
+ ow.addr = watch_item.addr.get_legacy_str();
+ ow.watcher_id = watch_item.name.num();
+ ow.cookie = watch_item.cookie;
+ ow.timeout_seconds = watch_item.timeout_seconds;
+ pwatchers->push_back(std::move(ow));
+ }
+ }
+ } catch (const ceph::buffer::error& e) {
+ if (prval)
+ *prval = -EIO;
+ if (pec)
+ *pec = e.code();
+ }
+ }
+ }
+ };
+
+
+ struct CB_ObjectOperation_decodesnaps {
+ librados::snap_set_t *psnaps;
+ neorados::SnapSet *neosnaps;
+ int *prval;
+ boost::system::error_code* pec;
+ CB_ObjectOperation_decodesnaps(librados::snap_set_t* ps,
+ neorados::SnapSet* ns, int* pr,
+ boost::system::error_code* pec)
+ : psnaps(ps), neosnaps(ns), prval(pr), pec(pec) {}
+ void operator()(boost::system::error_code ec, int r, const ceph::buffer::list& bl) {
+ if (r >= 0) {
+ using ceph::decode;
+ auto p = bl.cbegin();
+ try {
+ obj_list_snap_response_t resp;
+ decode(resp, p);
+ if (psnaps) {
+ psnaps->clones.clear();
+ for (auto ci = resp.clones.begin();
+ ci != resp.clones.end();
+ ++ci) {
+ librados::clone_info_t clone;
+
+ clone.cloneid = ci->cloneid;
+ clone.snaps.reserve(ci->snaps.size());
+ clone.snaps.insert(clone.snaps.end(), ci->snaps.begin(),
+ ci->snaps.end());
+ clone.overlap = ci->overlap;
+ clone.size = ci->size;
+
+ psnaps->clones.push_back(clone);
+ }
+ psnaps->seq = resp.seq;
+ }
+
+ if (neosnaps) {
+ neosnaps->clones.clear();
+ for (auto&& c : resp.clones) {
+ neorados::CloneInfo clone;
+
+ clone.cloneid = std::move(c.cloneid);
+ clone.snaps.reserve(c.snaps.size());
+ std::move(c.snaps.begin(), c.snaps.end(),
+ std::back_inserter(clone.snaps));
+ clone.overlap = c.overlap;
+ clone.size = c.size;
+ neosnaps->clones.push_back(std::move(clone));
+ }
+ neosnaps->seq = resp.seq;
+ }
+ } catch (const ceph::buffer::error& e) {
+ if (prval)
+ *prval = -EIO;
+ if (pec)
+ *pec = e.code();
+ }
+ }
+ }
+ };
+ void getxattrs(std::map<std::string,ceph::buffer::list> *pattrs, int *prval) {
+ add_op(CEPH_OSD_OP_GETXATTRS);
+ if (pattrs || prval) {
+ set_handler(CB_ObjectOperation_decodevals(0, pattrs, nullptr, prval,
+ nullptr));
+ out_rval.back() = prval;
+ }
+ }
+ void getxattrs(boost::system::error_code* ec,
+ boost::container::flat_map<std::string, ceph::buffer::list> *pattrs) {
+ add_op(CEPH_OSD_OP_GETXATTRS);
+ set_handler(CB_ObjectOperation_decodevals(0, pattrs, nullptr, nullptr, ec));
+ out_ec.back() = ec;
+ }
+ void setxattr(const char *name, const ceph::buffer::list& bl) {
+ add_xattr(CEPH_OSD_OP_SETXATTR, name, bl);
+ }
+ void setxattr(std::string_view name, const ceph::buffer::list& bl) {
+ add_xattr(CEPH_OSD_OP_SETXATTR, name, bl);
+ }
+ void setxattr(const char *name, const std::string& s) {
+ ceph::buffer::list bl;
+ bl.append(s);
+ add_xattr(CEPH_OSD_OP_SETXATTR, name, bl);
+ }
+ void cmpxattr(const char *name, uint8_t cmp_op, uint8_t cmp_mode,
+ const ceph::buffer::list& bl) {
+ add_xattr_cmp(CEPH_OSD_OP_CMPXATTR, name, cmp_op, cmp_mode, bl);
+ }
+ void cmpxattr(std::string_view name, uint8_t cmp_op, uint8_t cmp_mode,
+ const ceph::buffer::list& bl) {
+ add_xattr_cmp(CEPH_OSD_OP_CMPXATTR, name, cmp_op, cmp_mode, bl);
+ }
+ void rmxattr(const char *name) {
+ ceph::buffer::list bl;
+ add_xattr(CEPH_OSD_OP_RMXATTR, name, bl);
+ }
+ void rmxattr(std::string_view name) {
+ ceph::buffer::list bl;
+ add_xattr(CEPH_OSD_OP_RMXATTR, name, bl);
+ }
+ void setxattrs(std::map<std::string, ceph::buffer::list>& attrs) {
+ using ceph::encode;
+ ceph::buffer::list bl;
+ encode(attrs, bl);
+ add_xattr(CEPH_OSD_OP_RESETXATTRS, 0, bl.length());
+ }
+ void resetxattrs(const char *prefix, std::map<std::string, ceph::buffer::list>& attrs) {
+ using ceph::encode;
+ ceph::buffer::list bl;
+ encode(attrs, bl);
+ add_xattr(CEPH_OSD_OP_RESETXATTRS, prefix, bl);
+ }
+
+ // trivialmap
+ void tmap_update(ceph::buffer::list& bl) {
+ add_data(CEPH_OSD_OP_TMAPUP, 0, 0, bl);
+ }
+
+ // objectmap
+ void omap_get_keys(const std::string &start_after,
+ uint64_t max_to_get,
+ std::set<std::string> *out_set,
+ bool *ptruncated,
+ int *prval) {
+ using ceph::encode;
+ OSDOp &op = add_op(CEPH_OSD_OP_OMAPGETKEYS);
+ ceph::buffer::list bl;
+ encode(start_after, bl);
+ encode(max_to_get, bl);
+ op.op.extent.offset = 0;
+ op.op.extent.length = bl.length();
+ op.indata.claim_append(bl);
+ if (prval || ptruncated || out_set) {
+ set_handler(CB_ObjectOperation_decodekeys(max_to_get, out_set, ptruncated, prval,
+ nullptr));
+ out_rval.back() = prval;
+ }
+ }
+ void omap_get_keys(std::optional<std::string_view> start_after,
+ uint64_t max_to_get,
+ boost::system::error_code* ec,
+ boost::container::flat_set<std::string> *out_set,
+ bool *ptruncated) {
+ OSDOp& op = add_op(CEPH_OSD_OP_OMAPGETKEYS);
+ ceph::buffer::list bl;
+ encode(start_after ? *start_after : std::string_view{}, bl);
+ encode(max_to_get, bl);
+ op.op.extent.offset = 0;
+ op.op.extent.length = bl.length();
+ op.indata.claim_append(bl);
+ set_handler(
+ CB_ObjectOperation_decodekeys(max_to_get, out_set, ptruncated, nullptr,
+ ec));
+ out_ec.back() = ec;
+ }
+
+ void omap_get_vals(const std::string &start_after,
+ const std::string &filter_prefix,
+ uint64_t max_to_get,
+ std::map<std::string, ceph::buffer::list> *out_set,
+ bool *ptruncated,
+ int *prval) {
+ using ceph::encode;
+ OSDOp &op = add_op(CEPH_OSD_OP_OMAPGETVALS);
+ ceph::buffer::list bl;
+ encode(start_after, bl);
+ encode(max_to_get, bl);
+ encode(filter_prefix, bl);
+ op.op.extent.offset = 0;
+ op.op.extent.length = bl.length();
+ op.indata.claim_append(bl);
+ if (prval || out_set || ptruncated) {
+ set_handler(CB_ObjectOperation_decodevals(max_to_get, out_set, ptruncated,
+ prval, nullptr));
+ out_rval.back() = prval;
+ }
+ }
+
+ void omap_get_vals(std::optional<std::string_view> start_after,
+ std::optional<std::string_view> filter_prefix,
+ uint64_t max_to_get,
+ boost::system::error_code* ec,
+ boost::container::flat_map<std::string, ceph::buffer::list> *out_set,
+ bool *ptruncated) {
+ OSDOp &op = add_op(CEPH_OSD_OP_OMAPGETVALS);
+ ceph::buffer::list bl;
+ encode(start_after ? *start_after : std::string_view{}, bl);
+ encode(max_to_get, bl);
+ encode(filter_prefix ? *start_after : std::string_view{}, bl);
+ op.op.extent.offset = 0;
+ op.op.extent.length = bl.length();
+ op.indata.claim_append(bl);
+ set_handler(CB_ObjectOperation_decodevals(max_to_get, out_set, ptruncated,
+ nullptr, ec));
+ out_ec.back() = ec;
+ }
+
+ void omap_get_vals_by_keys(const std::set<std::string> &to_get,
+ std::map<std::string, ceph::buffer::list> *out_set,
+ int *prval) {
+ OSDOp &op = add_op(CEPH_OSD_OP_OMAPGETVALSBYKEYS);
+ ceph::buffer::list bl;
+ encode(to_get, bl);
+ op.op.extent.offset = 0;
+ op.op.extent.length = bl.length();
+ op.indata.claim_append(bl);
+ if (prval || out_set) {
+ set_handler(CB_ObjectOperation_decodevals(0, out_set, nullptr, prval,
+ nullptr));
+ out_rval.back() = prval;
+ }
+ }
+
+ void omap_get_vals_by_keys(
+ const boost::container::flat_set<std::string>& to_get,
+ boost::system::error_code* ec,
+ boost::container::flat_map<std::string, ceph::buffer::list> *out_set) {
+ OSDOp &op = add_op(CEPH_OSD_OP_OMAPGETVALSBYKEYS);
+ ceph::buffer::list bl;
+ encode(to_get, bl);
+ op.op.extent.offset = 0;
+ op.op.extent.length = bl.length();
+ op.indata.claim_append(bl);
+ set_handler(CB_ObjectOperation_decodevals(0, out_set, nullptr, nullptr,
+ ec));
+ out_ec.back() = ec;
+ }
+
+ void omap_cmp(const std::map<std::string, std::pair<ceph::buffer::list,int> > &assertions,
+ int *prval) {
+ using ceph::encode;
+ OSDOp &op = add_op(CEPH_OSD_OP_OMAP_CMP);
+ ceph::buffer::list bl;
+ encode(assertions, bl);
+ op.op.extent.offset = 0;
+ op.op.extent.length = bl.length();
+ op.indata.claim_append(bl);
+ if (prval) {
+ unsigned p = ops.size() - 1;
+ out_rval[p] = prval;
+ }
+ }
+
+ void omap_cmp(const boost::container::flat_map<
+ std::string, std::pair<ceph::buffer::list, int>>& assertions,
+ boost::system::error_code *ec) {
+ OSDOp &op = add_op(CEPH_OSD_OP_OMAP_CMP);
+ ceph::buffer::list bl;
+ encode(assertions, bl);
+ op.op.extent.offset = 0;
+ op.op.extent.length = bl.length();
+ op.indata.claim_append(bl);
+ out_ec.back() = ec;
+ }
+
+ struct C_ObjectOperation_copyget : public Context {
+ ceph::buffer::list bl;
+ object_copy_cursor_t *cursor;
+ uint64_t *out_size;
+ ceph::real_time *out_mtime;
+ std::map<std::string,ceph::buffer::list,std::less<>> *out_attrs;
+ ceph::buffer::list *out_data, *out_omap_header, *out_omap_data;
+ std::vector<snapid_t> *out_snaps;
+ snapid_t *out_snap_seq;
+ uint32_t *out_flags;
+ uint32_t *out_data_digest;
+ uint32_t *out_omap_digest;
+ mempool::osd_pglog::vector<std::pair<osd_reqid_t, version_t> > *out_reqids;
+ mempool::osd_pglog::map<uint32_t, int> *out_reqid_return_codes;
+ uint64_t *out_truncate_seq;
+ uint64_t *out_truncate_size;
+ int *prval;
+ C_ObjectOperation_copyget(object_copy_cursor_t *c,
+ uint64_t *s,
+ ceph::real_time *m,
+ std::map<std::string,ceph::buffer::list,std::less<>> *a,
+ ceph::buffer::list *d, ceph::buffer::list *oh,
+ ceph::buffer::list *o,
+ std::vector<snapid_t> *osnaps,
+ snapid_t *osnap_seq,
+ uint32_t *flags,
+ uint32_t *dd,
+ uint32_t *od,
+ mempool::osd_pglog::vector<std::pair<osd_reqid_t, version_t> > *oreqids,
+ mempool::osd_pglog::map<uint32_t, int> *oreqid_return_codes,
+ uint64_t *otseq,
+ uint64_t *otsize,
+ int *r)
+ : cursor(c),
+ out_size(s), out_mtime(m),
+ out_attrs(a), out_data(d), out_omap_header(oh),
+ out_omap_data(o), out_snaps(osnaps), out_snap_seq(osnap_seq),
+ out_flags(flags), out_data_digest(dd), out_omap_digest(od),
+ out_reqids(oreqids),
+ out_reqid_return_codes(oreqid_return_codes),
+ out_truncate_seq(otseq),
+ out_truncate_size(otsize),
+ prval(r) {}
+ void finish(int r) override {
+ using ceph::decode;
+ // reqids are copied on ENOENT
+ if (r < 0 && r != -ENOENT)
+ return;
+ try {
+ auto p = bl.cbegin();
+ object_copy_data_t copy_reply;
+ decode(copy_reply, p);
+ if (r == -ENOENT) {
+ if (out_reqids)
+ *out_reqids = copy_reply.reqids;
+ return;
+ }
+ if (out_size)
+ *out_size = copy_reply.size;
+ if (out_mtime)
+ *out_mtime = ceph::real_clock::from_ceph_timespec(copy_reply.mtime);
+ if (out_attrs)
+ *out_attrs = copy_reply.attrs;
+ if (out_data)
+ out_data->claim_append(copy_reply.data);
+ if (out_omap_header)
+ out_omap_header->claim_append(copy_reply.omap_header);
+ if (out_omap_data)
+ *out_omap_data = copy_reply.omap_data;
+ if (out_snaps)
+ *out_snaps = copy_reply.snaps;
+ if (out_snap_seq)
+ *out_snap_seq = copy_reply.snap_seq;
+ if (out_flags)
+ *out_flags = copy_reply.flags;
+ if (out_data_digest)
+ *out_data_digest = copy_reply.data_digest;
+ if (out_omap_digest)
+ *out_omap_digest = copy_reply.omap_digest;
+ if (out_reqids)
+ *out_reqids = copy_reply.reqids;
+ if (out_reqid_return_codes)
+ *out_reqid_return_codes = copy_reply.reqid_return_codes;
+ if (out_truncate_seq)
+ *out_truncate_seq = copy_reply.truncate_seq;
+ if (out_truncate_size)
+ *out_truncate_size = copy_reply.truncate_size;
+ *cursor = copy_reply.cursor;
+ } catch (const ceph::buffer::error& e) {
+ if (prval)
+ *prval = -EIO;
+ }
+ }
+ };
+
+ void copy_get(object_copy_cursor_t *cursor,
+ uint64_t max,
+ uint64_t *out_size,
+ ceph::real_time *out_mtime,
+ std::map<std::string,ceph::buffer::list,std::less<>> *out_attrs,
+ ceph::buffer::list *out_data,
+ ceph::buffer::list *out_omap_header,
+ ceph::buffer::list *out_omap_data,
+ std::vector<snapid_t> *out_snaps,
+ snapid_t *out_snap_seq,
+ uint32_t *out_flags,
+ uint32_t *out_data_digest,
+ uint32_t *out_omap_digest,
+ mempool::osd_pglog::vector<std::pair<osd_reqid_t, version_t> > *out_reqids,
+ mempool::osd_pglog::map<uint32_t, int> *out_reqid_return_codes,
+ uint64_t *truncate_seq,
+ uint64_t *truncate_size,
+ int *prval) {
+ using ceph::encode;
+ OSDOp& osd_op = add_op(CEPH_OSD_OP_COPY_GET);
+ osd_op.op.copy_get.max = max;
+ encode(*cursor, osd_op.indata);
+ encode(max, osd_op.indata);
+ unsigned p = ops.size() - 1;
+ out_rval[p] = prval;
+ C_ObjectOperation_copyget *h =
+ new C_ObjectOperation_copyget(cursor, out_size, out_mtime,
+ out_attrs, out_data, out_omap_header,
+ out_omap_data, out_snaps, out_snap_seq,
+ out_flags, out_data_digest,
+ out_omap_digest, out_reqids,
+ out_reqid_return_codes, truncate_seq,
+ truncate_size, prval);
+ out_bl[p] = &h->bl;
+ set_handler(h);
+ }
+
+ void undirty() {
+ add_op(CEPH_OSD_OP_UNDIRTY);
+ }
+
+ struct C_ObjectOperation_isdirty : public Context {
+ ceph::buffer::list bl;
+ bool *pisdirty;
+ int *prval;
+ C_ObjectOperation_isdirty(bool *p, int *r)
+ : pisdirty(p), prval(r) {}
+ void finish(int r) override {
+ using ceph::decode;
+ if (r < 0)
+ return;
+ try {
+ auto p = bl.cbegin();
+ bool isdirty;
+ decode(isdirty, p);
+ if (pisdirty)
+ *pisdirty = isdirty;
+ } catch (const ceph::buffer::error& e) {
+ if (prval)
+ *prval = -EIO;
+ }
+ }
+ };
+
+ void is_dirty(bool *pisdirty, int *prval) {
+ add_op(CEPH_OSD_OP_ISDIRTY);
+ unsigned p = ops.size() - 1;
+ out_rval[p] = prval;
+ C_ObjectOperation_isdirty *h =
+ new C_ObjectOperation_isdirty(pisdirty, prval);
+ out_bl[p] = &h->bl;
+ set_handler(h);
+ }
+
+ struct C_ObjectOperation_hit_set_ls : public Context {
+ ceph::buffer::list bl;
+ std::list< std::pair<time_t, time_t> > *ptls;
+ std::list< std::pair<ceph::real_time, ceph::real_time> > *putls;
+ int *prval;
+ C_ObjectOperation_hit_set_ls(std::list< std::pair<time_t, time_t> > *t,
+ std::list< std::pair<ceph::real_time,
+ ceph::real_time> > *ut,
+ int *r)
+ : ptls(t), putls(ut), prval(r) {}
+ void finish(int r) override {
+ using ceph::decode;
+ if (r < 0)
+ return;
+ try {
+ auto p = bl.cbegin();
+ std::list< std::pair<ceph::real_time, ceph::real_time> > ls;
+ decode(ls, p);
+ if (ptls) {
+ ptls->clear();
+ for (auto p = ls.begin(); p != ls.end(); ++p)
+ // round initial timestamp up to the next full second to
+ // keep this a valid interval.
+ ptls->push_back(
+ std::make_pair(ceph::real_clock::to_time_t(
+ ceph::ceil(p->first,
+ // Sadly, no time literals until C++14.
+ std::chrono::seconds(1))),
+ ceph::real_clock::to_time_t(p->second)));
+ }
+ if (putls)
+ putls->swap(ls);
+ } catch (const ceph::buffer::error& e) {
+ r = -EIO;
+ }
+ if (prval)
+ *prval = r;
+ }
+ };
+
+ /**
+ * std::list available HitSets.
+ *
+ * We will get back a std::list of time intervals. Note that the most
+ * recent range may have an empty end timestamp if it is still
+ * accumulating.
+ *
+ * @param pls [out] std::list of time intervals
+ * @param prval [out] return value
+ */
+ void hit_set_ls(std::list< std::pair<time_t, time_t> > *pls, int *prval) {
+ add_op(CEPH_OSD_OP_PG_HITSET_LS);
+ unsigned p = ops.size() - 1;
+ out_rval[p] = prval;
+ C_ObjectOperation_hit_set_ls *h =
+ new C_ObjectOperation_hit_set_ls(pls, NULL, prval);
+ out_bl[p] = &h->bl;
+ set_handler(h);
+ }
+ void hit_set_ls(std::list<std::pair<ceph::real_time, ceph::real_time> > *pls,
+ int *prval) {
+ add_op(CEPH_OSD_OP_PG_HITSET_LS);
+ unsigned p = ops.size() - 1;
+ out_rval[p] = prval;
+ C_ObjectOperation_hit_set_ls *h =
+ new C_ObjectOperation_hit_set_ls(NULL, pls, prval);
+ out_bl[p] = &h->bl;
+ set_handler(h);
+ }
+
+ /**
+ * get HitSet
+ *
+ * Return an encoded HitSet that includes the provided time
+ * interval.
+ *
+ * @param stamp [in] timestamp
+ * @param pbl [out] target buffer for encoded HitSet
+ * @param prval [out] return value
+ */
+ void hit_set_get(ceph::real_time stamp, ceph::buffer::list *pbl, int *prval) {
+ OSDOp& op = add_op(CEPH_OSD_OP_PG_HITSET_GET);
+ op.op.hit_set_get.stamp = ceph::real_clock::to_ceph_timespec(stamp);
+ unsigned p = ops.size() - 1;
+ out_rval[p] = prval;
+ out_bl[p] = pbl;
+ }
+
+ void omap_get_header(ceph::buffer::list *bl, int *prval) {
+ add_op(CEPH_OSD_OP_OMAPGETHEADER);
+ unsigned p = ops.size() - 1;
+ out_bl[p] = bl;
+ out_rval[p] = prval;
+ }
+
+ void omap_get_header(boost::system::error_code* ec, ceph::buffer::list *bl) {
+ add_op(CEPH_OSD_OP_OMAPGETHEADER);
+ out_bl.back() = bl;
+ out_ec.back() = ec;
+ }
+
+ void omap_set(const std::map<std::string, ceph::buffer::list> &map) {
+ ceph::buffer::list bl;
+ encode(map, bl);
+ add_data(CEPH_OSD_OP_OMAPSETVALS, 0, bl.length(), bl);
+ }
+
+ void omap_set(const boost::container::flat_map<std::string, ceph::buffer::list>& map) {
+ ceph::buffer::list bl;
+ encode(map, bl);
+ add_data(CEPH_OSD_OP_OMAPSETVALS, 0, bl.length(), bl);
+ }
+
+ void omap_set_header(ceph::buffer::list &bl) {
+ add_data(CEPH_OSD_OP_OMAPSETHEADER, 0, bl.length(), bl);
+ }
+
+ void omap_clear() {
+ add_op(CEPH_OSD_OP_OMAPCLEAR);
+ }
+
+ void omap_rm_keys(const std::set<std::string> &to_remove) {
+ using ceph::encode;
+ ceph::buffer::list bl;
+ encode(to_remove, bl);
+ add_data(CEPH_OSD_OP_OMAPRMKEYS, 0, bl.length(), bl);
+ }
+ void omap_rm_keys(const boost::container::flat_set<std::string>& to_remove) {
+ ceph::buffer::list bl;
+ encode(to_remove, bl);
+ add_data(CEPH_OSD_OP_OMAPRMKEYS, 0, bl.length(), bl);
+ }
+
+ void omap_rm_range(std::string_view key_begin, std::string_view key_end) {
+ ceph::buffer::list bl;
+ using ceph::encode;
+ encode(key_begin, bl);
+ encode(key_end, bl);
+ add_data(CEPH_OSD_OP_OMAPRMKEYRANGE, 0, bl.length(), bl);
+ }
+
+ // object classes
+ void call(const char *cname, const char *method, ceph::buffer::list &indata) {
+ add_call(CEPH_OSD_OP_CALL, cname, method, indata, NULL, NULL, NULL);
+ }
+
+ void call(const char *cname, const char *method, ceph::buffer::list &indata,
+ ceph::buffer::list *outdata, Context *ctx, int *prval) {
+ add_call(CEPH_OSD_OP_CALL, cname, method, indata, outdata, ctx, prval);
+ }
+
+ void call(std::string_view cname, std::string_view method,
+ const ceph::buffer::list& indata, boost::system::error_code* ec) {
+ add_call(CEPH_OSD_OP_CALL, cname, method, indata, NULL, NULL, NULL);
+ out_ec.back() = ec;
+ }
+
+ void call(std::string_view cname, std::string_view method, const ceph::buffer::list& indata,
+ boost::system::error_code* ec, ceph::buffer::list *outdata) {
+ add_call(CEPH_OSD_OP_CALL, cname, method, indata, outdata, nullptr, nullptr);
+ out_ec.back() = ec;
+ }
+ void call(std::string_view cname, std::string_view method,
+ const ceph::buffer::list& indata,
+ fu2::unique_function<void (boost::system::error_code,
+ const ceph::buffer::list&) &&> f) {
+ add_call(CEPH_OSD_OP_CALL, cname, method, indata, std::move(f));
+ }
+ void call(std::string_view cname, std::string_view method,
+ const ceph::buffer::list& indata,
+ fu2::unique_function<void (boost::system::error_code, int,
+ const ceph::buffer::list&) &&> f) {
+ add_call(CEPH_OSD_OP_CALL, cname, method, indata, std::move(f));
+ }
+
+ // watch/notify
+ void watch(uint64_t cookie, __u8 op, uint32_t timeout = 0) {
+ OSDOp& osd_op = add_op(CEPH_OSD_OP_WATCH);
+ osd_op.op.watch.cookie = cookie;
+ osd_op.op.watch.op = op;
+ osd_op.op.watch.timeout = timeout;
+ }
+
+ void notify(uint64_t cookie, uint32_t prot_ver, uint32_t timeout,
+ ceph::buffer::list &bl, ceph::buffer::list *inbl) {
+ using ceph::encode;
+ OSDOp& osd_op = add_op(CEPH_OSD_OP_NOTIFY);
+ osd_op.op.notify.cookie = cookie;
+ encode(prot_ver, *inbl);
+ encode(timeout, *inbl);
+ encode(bl, *inbl);
+ osd_op.indata.append(*inbl);
+ }
+
+ void notify_ack(uint64_t notify_id, uint64_t cookie,
+ ceph::buffer::list& reply_bl) {
+ using ceph::encode;
+ OSDOp& osd_op = add_op(CEPH_OSD_OP_NOTIFY_ACK);
+ ceph::buffer::list bl;
+ encode(notify_id, bl);
+ encode(cookie, bl);
+ encode(reply_bl, bl);
+ osd_op.indata.append(bl);
+ }
+
+ void list_watchers(std::list<obj_watch_t> *out,
+ int *prval) {
+ add_op(CEPH_OSD_OP_LIST_WATCHERS);
+ if (prval || out) {
+ set_handler(CB_ObjectOperation_decodewatchers(out, prval, nullptr));
+ out_rval.back() = prval;
+ }
+ }
+ void list_watchers(std::vector<neorados::ObjWatcher>* out,
+ boost::system::error_code* ec) {
+ add_op(CEPH_OSD_OP_LIST_WATCHERS);
+ set_handler(CB_ObjectOperation_decodewatchersneo(out, nullptr, ec));
+ out_ec.back() = ec;
+ }
+
+ void list_snaps(librados::snap_set_t *out, int *prval,
+ boost::system::error_code* ec = nullptr) {
+ add_op(CEPH_OSD_OP_LIST_SNAPS);
+ if (prval || out || ec) {
+ set_handler(CB_ObjectOperation_decodesnaps(out, nullptr, prval, ec));
+ out_rval.back() = prval;
+ out_ec.back() = ec;
+ }
+ }
+
+ void list_snaps(neorados::SnapSet *out, int *prval,
+ boost::system::error_code* ec = nullptr) {
+ add_op(CEPH_OSD_OP_LIST_SNAPS);
+ if (prval || out || ec) {
+ set_handler(CB_ObjectOperation_decodesnaps(nullptr, out, prval, ec));
+ out_rval.back() = prval;
+ out_ec.back() = ec;
+ }
+ }
+
+ void assert_version(uint64_t ver) {
+ OSDOp& osd_op = add_op(CEPH_OSD_OP_ASSERT_VER);
+ osd_op.op.assert_ver.ver = ver;
+ }
+
+ void cmpxattr(const char *name, const ceph::buffer::list& val,
+ int op, int mode) {
+ add_xattr(CEPH_OSD_OP_CMPXATTR, name, val);
+ OSDOp& o = *ops.rbegin();
+ o.op.xattr.cmp_op = op;
+ o.op.xattr.cmp_mode = mode;
+ }
+
+ void rollback(uint64_t snapid) {
+ OSDOp& osd_op = add_op(CEPH_OSD_OP_ROLLBACK);
+ osd_op.op.snap.snapid = snapid;
+ }
+
+ void copy_from(object_t src, snapid_t snapid, object_locator_t src_oloc,
+ version_t src_version, unsigned flags,
+ unsigned src_fadvise_flags) {
+ using ceph::encode;
+ OSDOp& osd_op = add_op(CEPH_OSD_OP_COPY_FROM);
+ osd_op.op.copy_from.snapid = snapid;
+ osd_op.op.copy_from.src_version = src_version;
+ osd_op.op.copy_from.flags = flags;
+ osd_op.op.copy_from.src_fadvise_flags = src_fadvise_flags;
+ encode(src, osd_op.indata);
+ encode(src_oloc, osd_op.indata);
+ }
+ void copy_from2(object_t src, snapid_t snapid, object_locator_t src_oloc,
+ version_t src_version, unsigned flags,
+ uint32_t truncate_seq, uint64_t truncate_size,
+ unsigned src_fadvise_flags) {
+ using ceph::encode;
+ OSDOp& osd_op = add_op(CEPH_OSD_OP_COPY_FROM2);
+ osd_op.op.copy_from.snapid = snapid;
+ osd_op.op.copy_from.src_version = src_version;
+ osd_op.op.copy_from.flags = flags;
+ osd_op.op.copy_from.src_fadvise_flags = src_fadvise_flags;
+ encode(src, osd_op.indata);
+ encode(src_oloc, osd_op.indata);
+ encode(truncate_seq, osd_op.indata);
+ encode(truncate_size, osd_op.indata);
+ }
+
+ /**
+ * writeback content to backing tier
+ *
+ * If object is marked dirty in the cache tier, write back content
+ * to backing tier. If the object is clean this is a no-op.
+ *
+ * If writeback races with an update, the update will block.
+ *
+ * use with IGNORE_CACHE to avoid triggering promote.
+ */
+ void cache_flush() {
+ add_op(CEPH_OSD_OP_CACHE_FLUSH);
+ }
+
+ /**
+ * writeback content to backing tier
+ *
+ * If object is marked dirty in the cache tier, write back content
+ * to backing tier. If the object is clean this is a no-op.
+ *
+ * If writeback races with an update, return EAGAIN. Requires that
+ * the SKIPRWLOCKS flag be set.
+ *
+ * use with IGNORE_CACHE to avoid triggering promote.
+ */
+ void cache_try_flush() {
+ add_op(CEPH_OSD_OP_CACHE_TRY_FLUSH);
+ }
+
+ /**
+ * evict object from cache tier
+ *
+ * If object is marked clean, remove the object from the cache tier.
+ * Otherwise, return EBUSY.
+ *
+ * use with IGNORE_CACHE to avoid triggering promote.
+ */
+ void cache_evict() {
+ add_op(CEPH_OSD_OP_CACHE_EVICT);
+ }
+
+ /*
+ * Extensible tier
+ */
+ void set_redirect(object_t tgt, snapid_t snapid, object_locator_t tgt_oloc,
+ version_t tgt_version, int flag) {
+ using ceph::encode;
+ OSDOp& osd_op = add_op(CEPH_OSD_OP_SET_REDIRECT);
+ osd_op.op.copy_from.snapid = snapid;
+ osd_op.op.copy_from.src_version = tgt_version;
+ encode(tgt, osd_op.indata);
+ encode(tgt_oloc, osd_op.indata);
+ set_last_op_flags(flag);
+ }
+
+ void set_chunk(uint64_t src_offset, uint64_t src_length, object_locator_t tgt_oloc,
+ object_t tgt_oid, uint64_t tgt_offset, int flag) {
+ using ceph::encode;
+ OSDOp& osd_op = add_op(CEPH_OSD_OP_SET_CHUNK);
+ encode(src_offset, osd_op.indata);
+ encode(src_length, osd_op.indata);
+ encode(tgt_oloc, osd_op.indata);
+ encode(tgt_oid, osd_op.indata);
+ encode(tgt_offset, osd_op.indata);
+ set_last_op_flags(flag);
+ }
+
+ void tier_promote() {
+ add_op(CEPH_OSD_OP_TIER_PROMOTE);
+ }
+
+ void unset_manifest() {
+ add_op(CEPH_OSD_OP_UNSET_MANIFEST);
+ }
+
+ void tier_flush() {
+ add_op(CEPH_OSD_OP_TIER_FLUSH);
+ }
+
+ void tier_evict() {
+ add_op(CEPH_OSD_OP_TIER_EVICT);
+ }
+
+ void set_alloc_hint(uint64_t expected_object_size,
+ uint64_t expected_write_size,
+ uint32_t flags) {
+ add_alloc_hint(CEPH_OSD_OP_SETALLOCHINT, expected_object_size,
+ expected_write_size, flags);
+
+ // CEPH_OSD_OP_SETALLOCHINT op is advisory and therefore deemed
+ // not worth a feature bit. Set FAILOK per-op flag to make
+ // sure older osds don't trip over an unsupported opcode.
+ set_last_op_flags(CEPH_OSD_OP_FLAG_FAILOK);
+ }
+
+ template<typename V>
+ void dup(V& sops) {
+ ops.clear();
+ std::copy(sops.begin(), sops.end(),
+ std::back_inserter(ops));
+ out_bl.resize(sops.size());
+ out_handler.resize(sops.size());
+ out_rval.resize(sops.size());
+ out_ec.resize(sops.size());
+ for (uint32_t i = 0; i < sops.size(); i++) {
+ out_bl[i] = &sops[i].outdata;
+ out_rval[i] = &sops[i].rval;
+ out_ec[i] = nullptr;
+ }
+ }
+
+ /**
+ * Pin/unpin an object in cache tier
+ */
+ void cache_pin() {
+ add_op(CEPH_OSD_OP_CACHE_PIN);
+ }
+
+ void cache_unpin() {
+ add_op(CEPH_OSD_OP_CACHE_UNPIN);
+ }
+};
+
+inline std::ostream& operator <<(std::ostream& m, const ObjectOperation& oo) {
+ auto i = oo.ops.cbegin();
+ m << '[';
+ while (i != oo.ops.cend()) {
+ if (i != oo.ops.cbegin())
+ m << ' ';
+ m << *i;
+ ++i;
+ }
+ m << ']';
+ return m;
+}
+
+
+// ----------------
+
+class Objecter : public md_config_obs_t, public Dispatcher {
+ using MOSDOp = _mosdop::MOSDOp<osdc_opvec>;
+public:
+ using OpSignature = void(boost::system::error_code);
+ using OpCompletion = ceph::async::Completion<OpSignature>;
+
+ // config observer bits
+ const char** get_tracked_conf_keys() const override;
+ void handle_conf_change(const ConfigProxy& conf,
+ const std::set <std::string> &changed) override;
+
+public:
+ Messenger *messenger;
+ MonClient *monc;
+ boost::asio::io_context& service;
+ // The guaranteed sequenced, one-at-a-time execution and apparently
+ // people sometimes depend on this.
+ boost::asio::io_context::strand finish_strand{service};
+ ZTracer::Endpoint trace_endpoint{"0.0.0.0", 0, "Objecter"};
+private:
+ std::unique_ptr<OSDMap> osdmap{std::make_unique<OSDMap>()};
+public:
+ using Dispatcher::cct;
+ std::multimap<std::string,std::string> crush_location;
+
+ std::atomic<bool> initialized{false};
+
+private:
+ std::atomic<uint64_t> last_tid{0};
+ std::atomic<unsigned> inflight_ops{0};
+ std::atomic<int> client_inc{-1};
+ uint64_t max_linger_id{0};
+ std::atomic<unsigned> num_in_flight{0};
+ std::atomic<int> global_op_flags{0}; // flags which are applied to each IO op
+ bool keep_balanced_budget = false;
+ bool honor_pool_full = true;
+
+ // If this is true, accumulate a set of blocklisted entities
+ // to be drained by consume_blocklist_events.
+ bool blocklist_events_enabled = false;
+ std::set<entity_addr_t> blocklist_events;
+ struct pg_mapping_t {
+ epoch_t epoch = 0;
+ std::vector<int> up;
+ int up_primary = -1;
+ std::vector<int> acting;
+ int acting_primary = -1;
+
+ pg_mapping_t() {}
+ pg_mapping_t(epoch_t epoch, const std::vector<int>& up, int up_primary,
+ const std::vector<int>& acting, int acting_primary)
+ : epoch(epoch), up(up), up_primary(up_primary),
+ acting(acting), acting_primary(acting_primary) {}
+ };
+ ceph::shared_mutex pg_mapping_lock =
+ ceph::make_shared_mutex("Objecter::pg_mapping_lock");
+ // pool -> pg mapping
+ std::map<int64_t, std::vector<pg_mapping_t>> pg_mappings;
+
+ // convenient accessors
+ bool lookup_pg_mapping(const pg_t& pg, epoch_t epoch, std::vector<int> *up,
+ int *up_primary, std::vector<int> *acting,
+ int *acting_primary) {
+ std::shared_lock l{pg_mapping_lock};
+ auto it = pg_mappings.find(pg.pool());
+ if (it == pg_mappings.end())
+ return false;
+ auto& mapping_array = it->second;
+ if (pg.ps() >= mapping_array.size())
+ return false;
+ if (mapping_array[pg.ps()].epoch != epoch) // stale
+ return false;
+ auto& pg_mapping = mapping_array[pg.ps()];
+ *up = pg_mapping.up;
+ *up_primary = pg_mapping.up_primary;
+ *acting = pg_mapping.acting;
+ *acting_primary = pg_mapping.acting_primary;
+ return true;
+ }
+ void update_pg_mapping(const pg_t& pg, pg_mapping_t&& pg_mapping) {
+ std::lock_guard l{pg_mapping_lock};
+ auto& mapping_array = pg_mappings[pg.pool()];
+ ceph_assert(pg.ps() < mapping_array.size());
+ mapping_array[pg.ps()] = std::move(pg_mapping);
+ }
+ void prune_pg_mapping(const mempool::osdmap::map<int64_t,pg_pool_t>& pools) {
+ std::lock_guard l{pg_mapping_lock};
+ for (auto& pool : pools) {
+ auto& mapping_array = pg_mappings[pool.first];
+ size_t pg_num = pool.second.get_pg_num();
+ if (mapping_array.size() != pg_num) {
+ // catch both pg_num increasing & decreasing
+ mapping_array.resize(pg_num);
+ }
+ }
+ for (auto it = pg_mappings.begin(); it != pg_mappings.end(); ) {
+ if (!pools.count(it->first)) {
+ // pool is gone
+ pg_mappings.erase(it++);
+ continue;
+ }
+ it++;
+ }
+ }
+
+public:
+ void maybe_request_map();
+
+ void enable_blocklist_events();
+private:
+
+ void _maybe_request_map();
+
+ version_t last_seen_osdmap_version = 0;
+ version_t last_seen_pgmap_version = 0;
+
+ mutable ceph::shared_mutex rwlock =
+ ceph::make_shared_mutex("Objecter::rwlock");
+ ceph::timer<ceph::coarse_mono_clock> timer;
+
+ PerfCounters* logger = nullptr;
+
+ uint64_t tick_event = 0;
+
+ void start_tick();
+ void tick();
+ void update_crush_location();
+
+ class RequestStateHook;
+
+ RequestStateHook *m_request_state_hook = nullptr;
+
+public:
+ /*** track pending operations ***/
+ // read
+
+ struct OSDSession;
+
+ struct op_target_t {
+ int flags = 0;
+
+ epoch_t epoch = 0; ///< latest epoch we calculated the mapping
+
+ object_t base_oid;
+ object_locator_t base_oloc;
+ object_t target_oid;
+ object_locator_t target_oloc;
+
+ ///< true if we are directed at base_pgid, not base_oid
+ bool precalc_pgid = false;
+
+ ///< true if we have ever mapped to a valid pool
+ bool pool_ever_existed = false;
+
+ ///< explcit pg target, if any
+ pg_t base_pgid;
+
+ pg_t pgid; ///< last (raw) pg we mapped to
+ spg_t actual_pgid; ///< last (actual) spg_t we mapped to
+ unsigned pg_num = 0; ///< last pg_num we mapped to
+ unsigned pg_num_mask = 0; ///< last pg_num_mask we mapped to
+ unsigned pg_num_pending = 0; ///< last pg_num we mapped to
+ std::vector<int> up; ///< set of up osds for last pg we mapped to
+ std::vector<int> acting; ///< set of acting osds for last pg we mapped to
+ int up_primary = -1; ///< last up_primary we mapped to
+ int acting_primary = -1; ///< last acting_primary we mapped to
+ int size = -1; ///< the size of the pool when were were last mapped
+ int min_size = -1; ///< the min size of the pool when were were last mapped
+ bool sort_bitwise = false; ///< whether the hobject_t sort order is bitwise
+ bool recovery_deletes = false; ///< whether the deletes are performed during recovery instead of peering
+ uint32_t peering_crush_bucket_count = 0;
+ uint32_t peering_crush_bucket_target = 0;
+ uint32_t peering_crush_bucket_barrier = 0;
+ int32_t peering_crush_mandatory_member = CRUSH_ITEM_NONE;
+
+ bool used_replica = false;
+ bool paused = false;
+
+ int osd = -1; ///< the final target osd, or -1
+
+ epoch_t last_force_resend = 0;
+
+ op_target_t(const object_t& oid, const object_locator_t& oloc, int flags)
+ : flags(flags),
+ base_oid(oid),
+ base_oloc(oloc)
+ {}
+
+ explicit op_target_t(pg_t pgid)
+ : base_oloc(pgid.pool(), pgid.ps()),
+ precalc_pgid(true),
+ base_pgid(pgid)
+ {}
+
+ op_target_t() = default;
+
+ hobject_t get_hobj() {
+ return hobject_t(target_oid,
+ target_oloc.key,
+ CEPH_NOSNAP,
+ target_oloc.hash >= 0 ? target_oloc.hash : pgid.ps(),
+ target_oloc.pool,
+ target_oloc.nspace);
+ }
+
+ bool contained_by(const hobject_t& begin, const hobject_t& end) {
+ hobject_t h = get_hobj();
+ int r = cmp(h, begin);
+ return r == 0 || (r > 0 && h < end);
+ }
+
+ bool respects_full() const {
+ return
+ (flags & (CEPH_OSD_FLAG_WRITE | CEPH_OSD_FLAG_RWORDERED)) &&
+ !(flags & (CEPH_OSD_FLAG_FULL_TRY | CEPH_OSD_FLAG_FULL_FORCE));
+ }
+
+ void dump(ceph::Formatter *f) const;
+ };
+
+ std::unique_ptr<ceph::async::Completion<void(boost::system::error_code)>>
+ OpContextVert(Context* c) {
+ if (c)
+ return ceph::async::Completion<void(boost::system::error_code)>::create(
+ service.get_executor(),
+ [c = std::unique_ptr<Context>(c)]
+ (boost::system::error_code e) mutable {
+ c.release()->complete(e);
+ });
+ else
+ return nullptr;
+ }
+
+ template<typename T>
+ std::unique_ptr<ceph::async::Completion<void(boost::system::error_code, T)>>
+ OpContextVert(Context* c, T* p) {
+
+ if (c || p)
+ return
+ ceph::async::Completion<void(boost::system::error_code, T)>::create(
+ service.get_executor(),
+ [c = std::unique_ptr<Context>(c), p]
+ (boost::system::error_code e, T r) mutable {
+ if (p)
+ *p = std::move(r);
+ if (c)
+ c.release()->complete(ceph::from_error_code(e));
+ });
+ else
+ return nullptr;
+ }
+
+ template<typename T>
+ std::unique_ptr<ceph::async::Completion<void(boost::system::error_code, T)>>
+ OpContextVert(Context* c, T& p) {
+ if (c)
+ return ceph::async::Completion<
+ void(boost::system::error_code, T)>::create(
+ service.get_executor(),
+ [c = std::unique_ptr<Context>(c), &p]
+ (boost::system::error_code e, T r) mutable {
+ p = std::move(r);
+ if (c)
+ c.release()->complete(ceph::from_error_code(e));
+ });
+ else
+ return nullptr;
+ }
+
+ struct Op : public RefCountedObject {
+ OSDSession *session = nullptr;
+ int incarnation = 0;
+
+ op_target_t target;
+
+ ConnectionRef con = nullptr; // for rx buffer only
+ uint64_t features = CEPH_FEATURES_SUPPORTED_DEFAULT; // explicitly specified op features
+
+ osdc_opvec ops;
+
+ snapid_t snapid = CEPH_NOSNAP;
+ SnapContext snapc;
+ ceph::real_time mtime;
+
+ ceph::buffer::list *outbl = nullptr;
+ boost::container::small_vector<ceph::buffer::list*, osdc_opvec_len> out_bl;
+ boost::container::small_vector<
+ fu2::unique_function<void(boost::system::error_code, int,
+ const ceph::buffer::list& bl) &&>,
+ osdc_opvec_len> out_handler;
+ boost::container::small_vector<int*, osdc_opvec_len> out_rval;
+ boost::container::small_vector<boost::system::error_code*,
+ osdc_opvec_len> out_ec;
+
+ int priority = 0;
+ using OpSig = void(boost::system::error_code);
+ using OpComp = ceph::async::Completion<OpSig>;
+ // Due to an irregularity of cmpxattr, we actualy need the 'int'
+ // value for onfinish for legacy librados users. As such just
+ // preserve the Context* in this one case. That way we can have
+ // our callers just pass in a unique_ptr<OpComp> and not deal with
+ // our signature in Objecter being different than the exposed
+ // signature in RADOS.
+ //
+ // Add a function for the linger case, where we want better
+ // semantics than Context, but still need to be under the completion_lock.
+ std::variant<std::unique_ptr<OpComp>, fu2::unique_function<OpSig>,
+ Context*> onfinish;
+ uint64_t ontimeout = 0;
+
+ ceph_tid_t tid = 0;
+ int attempts = 0;
+
+ version_t *objver;
+ epoch_t *reply_epoch = nullptr;
+
+ ceph::coarse_mono_time stamp;
+
+ epoch_t map_dne_bound = 0;
+
+ int budget = -1;
+
+ /// true if we should resend this message on failure
+ bool should_resend = true;
+
+ /// true if the throttle budget is get/put on a series of OPs,
+ /// instead of per OP basis, when this flag is set, the budget is
+ /// acquired before sending the very first OP of the series and
+ /// released upon receiving the last OP reply.
+ bool ctx_budgeted = false;
+
+ int *data_offset;
+
+ osd_reqid_t reqid; // explicitly setting reqid
+ ZTracer::Trace trace;
+
+ static bool has_completion(decltype(onfinish)& f) {
+ return std::visit([](auto&& arg) { return bool(arg);}, f);
+ }
+ bool has_completion() {
+ return has_completion(onfinish);
+ }
+
+ static void complete(decltype(onfinish)&& f, boost::system::error_code ec,
+ int r) {
+ std::visit([ec, r](auto&& arg) {
+ if constexpr (std::is_same_v<std::decay_t<decltype(arg)>,
+ Context*>) {
+ arg->complete(r);
+ } else if constexpr (std::is_same_v<std::decay_t<decltype(arg)>,
+ fu2::unique_function<OpSig>>) {
+ std::move(arg)(ec);
+ } else {
+ arg->defer(std::move(arg), ec);
+ }
+ }, std::move(f));
+ }
+ void complete(boost::system::error_code ec, int r) {
+ complete(std::move(onfinish), ec, r);
+ }
+
+ Op(const object_t& o, const object_locator_t& ol, osdc_opvec&& _ops,
+ int f, std::unique_ptr<OpComp>&& fin,
+ version_t *ov, int *offset = nullptr,
+ ZTracer::Trace *parent_trace = nullptr) :
+ target(o, ol, f),
+ ops(std::move(_ops)),
+ out_bl(ops.size(), nullptr),
+ out_handler(ops.size()),
+ out_rval(ops.size(), nullptr),
+ out_ec(ops.size(), nullptr),
+ onfinish(std::move(fin)),
+ objver(ov),
+ data_offset(offset) {
+ if (target.base_oloc.key == o)
+ target.base_oloc.key.clear();
+ if (parent_trace && parent_trace->valid()) {
+ trace.init("op", nullptr, parent_trace);
+ trace.event("start");
+ }
+ }
+
+ Op(const object_t& o, const object_locator_t& ol, osdc_opvec&& _ops,
+ int f, Context* fin, version_t *ov, int *offset = nullptr,
+ ZTracer::Trace *parent_trace = nullptr) :
+ target(o, ol, f),
+ ops(std::move(_ops)),
+ out_bl(ops.size(), nullptr),
+ out_handler(ops.size()),
+ out_rval(ops.size(), nullptr),
+ out_ec(ops.size(), nullptr),
+ onfinish(fin),
+ objver(ov),
+ data_offset(offset) {
+ if (target.base_oloc.key == o)
+ target.base_oloc.key.clear();
+ if (parent_trace && parent_trace->valid()) {
+ trace.init("op", nullptr, parent_trace);
+ trace.event("start");
+ }
+ }
+
+ Op(const object_t& o, const object_locator_t& ol, osdc_opvec&& _ops,
+ int f, fu2::unique_function<OpSig>&& fin, version_t *ov, int *offset = nullptr,
+ ZTracer::Trace *parent_trace = nullptr) :
+ target(o, ol, f),
+ ops(std::move(_ops)),
+ out_bl(ops.size(), nullptr),
+ out_handler(ops.size()),
+ out_rval(ops.size(), nullptr),
+ out_ec(ops.size(), nullptr),
+ onfinish(std::move(fin)),
+ objver(ov),
+ data_offset(offset) {
+ if (target.base_oloc.key == o)
+ target.base_oloc.key.clear();
+ if (parent_trace && parent_trace->valid()) {
+ trace.init("op", nullptr, parent_trace);
+ trace.event("start");
+ }
+ }
+
+ bool operator<(const Op& other) const {
+ return tid < other.tid;
+ }
+
+ private:
+ ~Op() override {
+ trace.event("finish");
+ }
+ };
+
+ struct CB_Op_Map_Latest {
+ Objecter *objecter;
+ ceph_tid_t tid;
+ CB_Op_Map_Latest(Objecter *o, ceph_tid_t t) : objecter(o), tid(t) {}
+ void operator()(boost::system::error_code err, version_t latest, version_t);
+ };
+
+ struct CB_Command_Map_Latest {
+ Objecter *objecter;
+ uint64_t tid;
+ CB_Command_Map_Latest(Objecter *o, ceph_tid_t t) : objecter(o), tid(t) {}
+ void operator()(boost::system::error_code err, version_t latest, version_t);
+ };
+
+ struct C_Stat : public Context {
+ ceph::buffer::list bl;
+ uint64_t *psize;
+ ceph::real_time *pmtime;
+ Context *fin;
+ C_Stat(uint64_t *ps, ceph::real_time *pm, Context *c) :
+ psize(ps), pmtime(pm), fin(c) {}
+ void finish(int r) override {
+ using ceph::decode;
+ if (r >= 0) {
+ auto p = bl.cbegin();
+ uint64_t s;
+ ceph::real_time m;
+ decode(s, p);
+ decode(m, p);
+ if (psize)
+ *psize = s;
+ if (pmtime)
+ *pmtime = m;
+ }
+ fin->complete(r);
+ }
+ };
+
+ struct C_GetAttrs : public Context {
+ ceph::buffer::list bl;
+ std::map<std::string,ceph::buffer::list>& attrset;
+ Context *fin;
+ C_GetAttrs(std::map<std::string, ceph::buffer::list>& set, Context *c) : attrset(set),
+ fin(c) {}
+ void finish(int r) override {
+ using ceph::decode;
+ if (r >= 0) {
+ auto p = bl.cbegin();
+ decode(attrset, p);
+ }
+ fin->complete(r);
+ }
+ };
+
+
+ // Pools and statistics
+ struct NListContext {
+ collection_list_handle_t pos;
+
+ // these are for !sortbitwise compat only
+ int current_pg = 0;
+ int starting_pg_num = 0;
+ bool sort_bitwise = false;
+
+ bool at_end_of_pool = false; ///< publicly visible end flag
+
+ int64_t pool_id = -1;
+ int pool_snap_seq = 0;
+ uint64_t max_entries = 0;
+ std::string nspace;
+
+ ceph::buffer::list bl; // raw data read to here
+ std::list<librados::ListObjectImpl> list;
+
+ ceph::buffer::list filter;
+
+ // The budget associated with this context, once it is set (>= 0),
+ // the budget is not get/released on OP basis, instead the budget
+ // is acquired before sending the first OP and released upon receiving
+ // the last op reply.
+ int ctx_budget = -1;
+
+ bool at_end() const {
+ return at_end_of_pool;
+ }
+
+ uint32_t get_pg_hash_position() const {
+ return pos.get_hash();
+ }
+ };
+
+ struct C_NList : public Context {
+ NListContext *list_context;
+ Context *final_finish;
+ Objecter *objecter;
+ epoch_t epoch;
+ C_NList(NListContext *lc, Context * finish, Objecter *ob) :
+ list_context(lc), final_finish(finish), objecter(ob), epoch(0) {}
+ void finish(int r) override {
+ if (r >= 0) {
+ objecter->_nlist_reply(list_context, r, final_finish, epoch);
+ } else {
+ final_finish->complete(r);
+ }
+ }
+ };
+
+ struct PoolStatOp {
+ ceph_tid_t tid;
+ std::vector<std::string> pools;
+ using OpSig = void(boost::system::error_code,
+ boost::container::flat_map<std::string, pool_stat_t>,
+ bool);
+ using OpComp = ceph::async::Completion<OpSig>;
+ std::unique_ptr<OpComp> onfinish;
+ std::uint64_t ontimeout;
+ ceph::coarse_mono_time last_submit;
+ };
+
+ struct StatfsOp {
+ ceph_tid_t tid;
+ std::optional<int64_t> data_pool;
+ using OpSig = void(boost::system::error_code,
+ const struct ceph_statfs);
+ using OpComp = ceph::async::Completion<OpSig>;
+
+ std::unique_ptr<OpComp> onfinish;
+ uint64_t ontimeout;
+
+ ceph::coarse_mono_time last_submit;
+ };
+
+ struct PoolOp {
+ ceph_tid_t tid = 0;
+ int64_t pool = 0;
+ std::string name;
+ using OpSig = void(boost::system::error_code, ceph::buffer::list);
+ using OpComp = ceph::async::Completion<OpSig>;
+ std::unique_ptr<OpComp> onfinish;
+ uint64_t ontimeout = 0;
+ int pool_op = 0;
+ int16_t crush_rule = 0;
+ snapid_t snapid = 0;
+ ceph::coarse_mono_time last_submit;
+
+ PoolOp() {}
+ };
+
+ // -- osd commands --
+ struct CommandOp : public RefCountedObject {
+ OSDSession *session = nullptr;
+ ceph_tid_t tid = 0;
+ std::vector<std::string> cmd;
+ ceph::buffer::list inbl;
+
+ // target_osd == -1 means target_pg is valid
+ const int target_osd = -1;
+ const pg_t target_pg;
+
+ op_target_t target;
+
+ epoch_t map_dne_bound = 0;
+ int map_check_error = 0; // error to return if std::map check fails
+ const char *map_check_error_str = nullptr;
+
+ using OpSig = void(boost::system::error_code, std::string,
+ ceph::buffer::list);
+ using OpComp = ceph::async::Completion<OpSig>;
+ std::unique_ptr<OpComp> onfinish;
+
+ uint64_t ontimeout = 0;
+ ceph::coarse_mono_time last_submit;
+
+ CommandOp(
+ int target_osd,
+ std::vector<std::string>&& cmd,
+ ceph::buffer::list&& inbl,
+ decltype(onfinish)&& onfinish)
+ : cmd(std::move(cmd)),
+ inbl(std::move(inbl)),
+ target_osd(target_osd),
+ onfinish(std::move(onfinish)) {}
+
+ CommandOp(
+ pg_t pgid,
+ std::vector<std::string>&& cmd,
+ ceph::buffer::list&& inbl,
+ decltype(onfinish)&& onfinish)
+ : cmd(std::move(cmd)),
+ inbl(std::move(inbl)),
+ target_pg(pgid),
+ target(pgid),
+ onfinish(std::move(onfinish)) {}
+ };
+
+ void submit_command(CommandOp *c, ceph_tid_t *ptid);
+ int _calc_command_target(CommandOp *c,
+ ceph::shunique_lock<ceph::shared_mutex> &sul);
+ void _assign_command_session(CommandOp *c,
+ ceph::shunique_lock<ceph::shared_mutex> &sul);
+ void _send_command(CommandOp *c);
+ int command_op_cancel(OSDSession *s, ceph_tid_t tid,
+ boost::system::error_code ec);
+ void _finish_command(CommandOp *c, boost::system::error_code ec,
+ std::string&& rs, ceph::buffer::list&& bl);
+ void handle_command_reply(MCommandReply *m);
+
+ // -- lingering ops --
+
+ struct LingerOp : public RefCountedObject {
+ Objecter *objecter;
+ uint64_t linger_id{0};
+ op_target_t target{object_t(), object_locator_t(), 0};
+ snapid_t snap{CEPH_NOSNAP};
+ SnapContext snapc;
+ ceph::real_time mtime;
+
+ osdc_opvec ops;
+ ceph::buffer::list inbl;
+ version_t *pobjver{nullptr};
+
+ bool is_watch{false};
+ ceph::coarse_mono_time watch_valid_thru; ///< send time for last acked ping
+ boost::system::error_code last_error; ///< error from last failed ping|reconnect, if any
+ ceph::shared_mutex watch_lock;
+
+ // queue of pending async operations, with the timestamp of
+ // when they were queued.
+ std::list<ceph::coarse_mono_time> watch_pending_async;
+
+ uint32_t register_gen{0};
+ bool registered{false};
+ bool canceled{false};
+ using OpSig = void(boost::system::error_code, ceph::buffer::list);
+ using OpComp = ceph::async::Completion<OpSig>;
+ std::unique_ptr<OpComp> on_reg_commit;
+ std::unique_ptr<OpComp> on_notify_finish;
+ uint64_t notify_id{0};
+
+ fu2::unique_function<void(boost::system::error_code,
+ uint64_t notify_id,
+ uint64_t cookie,
+ uint64_t notifier_id,
+ ceph::buffer::list&& bl)> handle;
+ OSDSession *session{nullptr};
+
+ int ctx_budget{-1};
+ ceph_tid_t register_tid{0};
+ ceph_tid_t ping_tid{0};
+ epoch_t map_dne_bound{0};
+
+ void _queued_async() {
+ // watch_lock ust be locked unique
+ watch_pending_async.push_back(ceph::coarse_mono_clock::now());
+ }
+ void finished_async() {
+ std::unique_lock l(watch_lock);
+ ceph_assert(!watch_pending_async.empty());
+ watch_pending_async.pop_front();
+ }
+
+ LingerOp(Objecter *o, uint64_t linger_id);
+ const LingerOp& operator=(const LingerOp& r) = delete;
+ LingerOp(const LingerOp& o) = delete;
+
+ uint64_t get_cookie() {
+ return reinterpret_cast<uint64_t>(this);
+ }
+ };
+
+ struct CB_Linger_Commit {
+ Objecter *objecter;
+ boost::intrusive_ptr<LingerOp> info;
+ ceph::buffer::list outbl; // used for notify only
+ CB_Linger_Commit(Objecter *o, LingerOp *l) : objecter(o), info(l) {}
+ ~CB_Linger_Commit() = default;
+
+ void operator()(boost::system::error_code ec) {
+ objecter->_linger_commit(info.get(), ec, outbl);
+ }
+ };
+
+ struct CB_Linger_Reconnect {
+ Objecter *objecter;
+ boost::intrusive_ptr<LingerOp> info;
+ CB_Linger_Reconnect(Objecter *o, LingerOp *l) : objecter(o), info(l) {}
+ ~CB_Linger_Reconnect() = default;
+
+ void operator()(boost::system::error_code ec) {
+ objecter->_linger_reconnect(info.get(), ec);
+ info.reset();
+ }
+ };
+
+ struct CB_Linger_Ping {
+ Objecter *objecter;
+ boost::intrusive_ptr<LingerOp> info;
+ ceph::coarse_mono_time sent;
+ uint32_t register_gen;
+ CB_Linger_Ping(Objecter *o, LingerOp *l, ceph::coarse_mono_time s)
+ : objecter(o), info(l), sent(s), register_gen(info->register_gen) {}
+ void operator()(boost::system::error_code ec) {
+ objecter->_linger_ping(info.get(), ec, sent, register_gen);
+ info.reset();
+ }
+ };
+
+ struct CB_Linger_Map_Latest {
+ Objecter *objecter;
+ uint64_t linger_id;
+ CB_Linger_Map_Latest(Objecter *o, uint64_t id) : objecter(o), linger_id(id) {}
+ void operator()(boost::system::error_code err, version_t latest, version_t);
+ };
+
+ // -- osd sessions --
+ struct OSDBackoff {
+ spg_t pgid;
+ uint64_t id;
+ hobject_t begin, end;
+ };
+
+ struct OSDSession : public RefCountedObject {
+ // pending ops
+ std::map<ceph_tid_t,Op*> ops;
+ std::map<uint64_t, LingerOp*> linger_ops;
+ std::map<ceph_tid_t,CommandOp*> command_ops;
+
+ // backoffs
+ std::map<spg_t,std::map<hobject_t,OSDBackoff>> backoffs;
+ std::map<uint64_t,OSDBackoff*> backoffs_by_id;
+
+ int osd;
+ // NB locking two sessions at the same time is only safe because
+ // it is only done in _recalc_linger_op_target with s and
+ // linger_op->session, and it holds rwlock for write. We disable
+ // lockdep (using std::sharedMutex) because lockdep doesn't know
+ // that.
+ std::shared_mutex lock;
+
+ int incarnation;
+ ConnectionRef con;
+ int num_locks;
+ std::unique_ptr<std::mutex[]> completion_locks;
+
+ OSDSession(CephContext *cct, int o) :
+ osd(o), incarnation(0), con(NULL),
+ num_locks(cct->_conf->objecter_completion_locks_per_session),
+ completion_locks(new std::mutex[num_locks]) {}
+
+ ~OSDSession() override;
+
+ bool is_homeless() { return (osd == -1); }
+
+ std::unique_lock<std::mutex> get_lock(object_t& oid);
+ };
+ std::map<int,OSDSession*> osd_sessions;
+
+ bool osdmap_full_flag() const;
+ bool osdmap_pool_full(const int64_t pool_id) const;
+
+
+ private:
+
+ /**
+ * Test pg_pool_t::FLAG_FULL on a pool
+ *
+ * @return true if the pool exists and has the flag set, or
+ * the global full flag is set, else false
+ */
+ bool _osdmap_pool_full(const int64_t pool_id) const;
+ bool _osdmap_pool_full(const pg_pool_t &p) const {
+ return p.has_flag(pg_pool_t::FLAG_FULL) && honor_pool_full;
+ }
+ void update_pool_full_map(std::map<int64_t, bool>& pool_full_map);
+
+ std::map<uint64_t, LingerOp*> linger_ops;
+ // we use this just to confirm a cookie is valid before dereferencing the ptr
+ std::set<LingerOp*> linger_ops_set;
+
+ std::map<ceph_tid_t,PoolStatOp*> poolstat_ops;
+ std::map<ceph_tid_t,StatfsOp*> statfs_ops;
+ std::map<ceph_tid_t,PoolOp*> pool_ops;
+ std::atomic<unsigned> num_homeless_ops{0};
+
+ OSDSession* homeless_session = new OSDSession(cct, -1);
+
+
+ // ops waiting for an osdmap with a new pool or confirmation that
+ // the pool does not exist (may be expanded to other uses later)
+ std::map<uint64_t, LingerOp*> check_latest_map_lingers;
+ std::map<ceph_tid_t, Op*> check_latest_map_ops;
+ std::map<ceph_tid_t, CommandOp*> check_latest_map_commands;
+
+ std::map<epoch_t,
+ std::vector<std::pair<std::unique_ptr<OpCompletion>,
+ boost::system::error_code>>> waiting_for_map;
+
+ ceph::timespan mon_timeout;
+ ceph::timespan osd_timeout;
+
+ MOSDOp *_prepare_osd_op(Op *op);
+ void _send_op(Op *op);
+ void _send_op_account(Op *op);
+ void _cancel_linger_op(Op *op);
+ void _finish_op(Op *op, int r);
+ static bool is_pg_changed(
+ int oldprimary,
+ const std::vector<int>& oldacting,
+ int newprimary,
+ const std::vector<int>& newacting,
+ bool any_change=false);
+ enum recalc_op_target_result {
+ RECALC_OP_TARGET_NO_ACTION = 0,
+ RECALC_OP_TARGET_NEED_RESEND,
+ RECALC_OP_TARGET_POOL_DNE,
+ RECALC_OP_TARGET_OSD_DNE,
+ RECALC_OP_TARGET_OSD_DOWN,
+ RECALC_OP_TARGET_POOL_EIO,
+ };
+ bool _osdmap_full_flag() const;
+ bool _osdmap_has_pool_full() const;
+ void _prune_snapc(
+ const mempool::osdmap::map<int64_t, snap_interval_set_t>& new_removed_snaps,
+ Op *op);
+
+ bool target_should_be_paused(op_target_t *op);
+ int _calc_target(op_target_t *t, Connection *con,
+ bool any_change = false);
+ int _map_session(op_target_t *op, OSDSession **s,
+ ceph::shunique_lock<ceph::shared_mutex>& lc);
+
+ void _session_op_assign(OSDSession *s, Op *op);
+ void _session_op_remove(OSDSession *s, Op *op);
+ void _session_linger_op_assign(OSDSession *to, LingerOp *op);
+ void _session_linger_op_remove(OSDSession *from, LingerOp *op);
+ void _session_command_op_assign(OSDSession *to, CommandOp *op);
+ void _session_command_op_remove(OSDSession *from, CommandOp *op);
+
+ int _assign_op_target_session(Op *op, ceph::shunique_lock<ceph::shared_mutex>& lc,
+ bool src_session_locked,
+ bool dst_session_locked);
+ int _recalc_linger_op_target(LingerOp *op,
+ ceph::shunique_lock<ceph::shared_mutex>& lc);
+
+ void _linger_submit(LingerOp *info,
+ ceph::shunique_lock<ceph::shared_mutex>& sul);
+ void _send_linger(LingerOp *info,
+ ceph::shunique_lock<ceph::shared_mutex>& sul);
+ void _linger_commit(LingerOp *info, boost::system::error_code ec,
+ ceph::buffer::list& outbl);
+ void _linger_reconnect(LingerOp *info, boost::system::error_code ec);
+ void _send_linger_ping(LingerOp *info);
+ void _linger_ping(LingerOp *info, boost::system::error_code ec,
+ ceph::coarse_mono_time sent, uint32_t register_gen);
+ boost::system::error_code _normalize_watch_error(boost::system::error_code ec);
+
+ friend class CB_Objecter_GetVersion;
+ friend class CB_DoWatchError;
+public:
+ template<typename CT>
+ auto linger_callback_flush(CT&& ct) {
+ boost::asio::async_completion<CT, void(void)> init(ct);
+ boost::asio::defer(finish_strand, std::move(init.completion_handler));
+ return init.result.get();
+ }
+
+private:
+ void _check_op_pool_dne(Op *op, std::unique_lock<std::shared_mutex> *sl);
+ void _check_op_pool_eio(Op *op, std::unique_lock<std::shared_mutex> *sl);
+ void _send_op_map_check(Op *op);
+ void _op_cancel_map_check(Op *op);
+ void _check_linger_pool_dne(LingerOp *op, bool *need_unregister);
+ void _check_linger_pool_eio(LingerOp *op);
+ void _send_linger_map_check(LingerOp *op);
+ void _linger_cancel_map_check(LingerOp *op);
+ void _check_command_map_dne(CommandOp *op);
+ void _send_command_map_check(CommandOp *op);
+ void _command_cancel_map_check(CommandOp *op);
+
+ void _kick_requests(OSDSession *session, std::map<uint64_t, LingerOp *>& lresend);
+ void _linger_ops_resend(std::map<uint64_t, LingerOp *>& lresend,
+ std::unique_lock<ceph::shared_mutex>& ul);
+
+ int _get_session(int osd, OSDSession **session,
+ ceph::shunique_lock<ceph::shared_mutex>& sul);
+ void put_session(OSDSession *s);
+ void get_session(OSDSession *s);
+ void _reopen_session(OSDSession *session);
+ void close_session(OSDSession *session);
+
+ void _nlist_reply(NListContext *list_context, int r, Context *final_finish,
+ epoch_t reply_epoch);
+
+ void resend_mon_ops();
+
+ /**
+ * handle a budget for in-flight ops
+ * budget is taken whenever an op goes into the ops std::map
+ * and returned whenever an op is removed from the std::map
+ * If throttle_op needs to throttle it will unlock client_lock.
+ */
+ int calc_op_budget(const boost::container::small_vector_base<OSDOp>& ops);
+ void _throttle_op(Op *op, ceph::shunique_lock<ceph::shared_mutex>& sul,
+ int op_size = 0);
+ int _take_op_budget(Op *op, ceph::shunique_lock<ceph::shared_mutex>& sul) {
+ ceph_assert(sul && sul.mutex() == &rwlock);
+ int op_budget = calc_op_budget(op->ops);
+ if (keep_balanced_budget) {
+ _throttle_op(op, sul, op_budget);
+ } else { // update take_linger_budget to match this!
+ op_throttle_bytes.take(op_budget);
+ op_throttle_ops.take(1);
+ }
+ op->budget = op_budget;
+ return op_budget;
+ }
+ int take_linger_budget(LingerOp *info);
+ void put_op_budget_bytes(int op_budget) {
+ ceph_assert(op_budget >= 0);
+ op_throttle_bytes.put(op_budget);
+ op_throttle_ops.put(1);
+ }
+ void put_nlist_context_budget(NListContext *list_context);
+ Throttle op_throttle_bytes{cct, "objecter_bytes",
+ static_cast<int64_t>(
+ cct->_conf->objecter_inflight_op_bytes)};
+ Throttle op_throttle_ops{cct, "objecter_ops",
+ static_cast<int64_t>(
+ cct->_conf->objecter_inflight_ops)};
+ public:
+ Objecter(CephContext *cct, Messenger *m, MonClient *mc,
+ boost::asio::io_context& service);
+ ~Objecter() override;
+
+ void init();
+ void start(const OSDMap *o = nullptr);
+ void shutdown();
+
+ // These two templates replace osdmap_(get)|(put)_read. Simply wrap
+ // whatever functionality you want to use the OSDMap in a lambda like:
+ //
+ // with_osdmap([](const OSDMap& o) { o.do_stuff(); });
+ //
+ // or
+ //
+ // auto t = with_osdmap([&](const OSDMap& o) { return o.lookup_stuff(x); });
+ //
+ // Do not call into something that will try to lock the OSDMap from
+ // here or you will have great woe and misery.
+
+ template<typename Callback, typename...Args>
+ decltype(auto) with_osdmap(Callback&& cb, Args&&... args) {
+ std::shared_lock l(rwlock);
+ return std::forward<Callback>(cb)(*osdmap, std::forward<Args>(args)...);
+ }
+
+
+ /**
+ * Tell the objecter to throttle outgoing ops according to its
+ * budget (in _conf). If you do this, ops can block, in
+ * which case it will unlock client_lock and sleep until
+ * incoming messages reduce the used budget low enough for
+ * the ops to continue going; then it will lock client_lock again.
+ */
+ void set_balanced_budget() { keep_balanced_budget = true; }
+ void unset_balanced_budget() { keep_balanced_budget = false; }
+
+ void set_honor_pool_full() { honor_pool_full = true; }
+ void unset_honor_pool_full() { honor_pool_full = false; }
+
+ void _scan_requests(
+ OSDSession *s,
+ bool skipped_map,
+ bool cluster_full,
+ std::map<int64_t, bool> *pool_full_map,
+ std::map<ceph_tid_t, Op*>& need_resend,
+ std::list<LingerOp*>& need_resend_linger,
+ std::map<ceph_tid_t, CommandOp*>& need_resend_command,
+ ceph::shunique_lock<ceph::shared_mutex>& sul);
+
+ int64_t get_object_hash_position(int64_t pool, const std::string& key,
+ const std::string& ns);
+ int64_t get_object_pg_hash_position(int64_t pool, const std::string& key,
+ const std::string& ns);
+
+ // messages
+ public:
+ bool ms_dispatch(Message *m) override;
+ bool ms_can_fast_dispatch_any() const override {
+ return true;
+ }
+ bool ms_can_fast_dispatch(const Message *m) const override {
+ switch (m->get_type()) {
+ case CEPH_MSG_OSD_OPREPLY:
+ case CEPH_MSG_WATCH_NOTIFY:
+ return true;
+ default:
+ return false;
+ }
+ }
+ void ms_fast_dispatch(Message *m) override {
+ if (!ms_dispatch(m)) {
+ m->put();
+ }
+ }
+
+ void handle_osd_op_reply(class MOSDOpReply *m);
+ void handle_osd_backoff(class MOSDBackoff *m);
+ void handle_watch_notify(class MWatchNotify *m);
+ void handle_osd_map(class MOSDMap *m);
+ void wait_for_osd_map(epoch_t e=0);
+
+ template<typename CompletionToken>
+ auto wait_for_osd_map(CompletionToken&& token) {
+ boost::asio::async_completion<CompletionToken, void()> init(token);
+ std::unique_lock l(rwlock);
+ if (osdmap->get_epoch()) {
+ l.unlock();
+ boost::asio::post(std::move(init.completion_handler));
+ } else {
+ waiting_for_map[0].emplace_back(
+ OpCompletion::create(
+ service.get_executor(),
+ [c = std::move(init.completion_handler)]
+ (boost::system::error_code) mutable {
+ std::move(c)();
+ }), boost::system::error_code{});
+ l.unlock();
+ }
+ return init.result.get();
+ }
+
+
+ /**
+ * Get std::list of entities blocklisted since this was last called,
+ * and reset the std::list.
+ *
+ * Uses a std::set because typical use case is to compare some
+ * other std::list of clients to see which overlap with the blocklisted
+ * addrs.
+ *
+ */
+ void consume_blocklist_events(std::set<entity_addr_t> *events);
+
+ int pool_snap_by_name(int64_t poolid,
+ const char *snap_name,
+ snapid_t *snap) const;
+ int pool_snap_get_info(int64_t poolid, snapid_t snap,
+ pool_snap_info_t *info) const;
+ int pool_snap_list(int64_t poolid, std::vector<uint64_t> *snaps);
+private:
+
+ void emit_blocklist_events(const OSDMap::Incremental &inc);
+ void emit_blocklist_events(const OSDMap &old_osd_map,
+ const OSDMap &new_osd_map);
+
+ // low-level
+ void _op_submit(Op *op, ceph::shunique_lock<ceph::shared_mutex>& lc,
+ ceph_tid_t *ptid);
+ void _op_submit_with_budget(Op *op,
+ ceph::shunique_lock<ceph::shared_mutex>& lc,
+ ceph_tid_t *ptid,
+ int *ctx_budget = NULL);
+ // public interface
+public:
+ void op_submit(Op *op, ceph_tid_t *ptid = NULL, int *ctx_budget = NULL);
+ bool is_active() {
+ std::shared_lock l(rwlock);
+ return !((!inflight_ops) && linger_ops.empty() &&
+ poolstat_ops.empty() && statfs_ops.empty());
+ }
+
+ /**
+ * Output in-flight requests
+ */
+ void _dump_active(OSDSession *s);
+ void _dump_active();
+ void dump_active();
+ void dump_requests(ceph::Formatter *fmt);
+ void _dump_ops(const OSDSession *s, ceph::Formatter *fmt);
+ void dump_ops(ceph::Formatter *fmt);
+ void _dump_linger_ops(const OSDSession *s, ceph::Formatter *fmt);
+ void dump_linger_ops(ceph::Formatter *fmt);
+ void _dump_command_ops(const OSDSession *s, ceph::Formatter *fmt);
+ void dump_command_ops(ceph::Formatter *fmt);
+ void dump_pool_ops(ceph::Formatter *fmt) const;
+ void dump_pool_stat_ops(ceph::Formatter *fmt) const;
+ void dump_statfs_ops(ceph::Formatter *fmt) const;
+
+ int get_client_incarnation() const { return client_inc; }
+ void set_client_incarnation(int inc) { client_inc = inc; }
+
+ bool have_map(epoch_t epoch);
+
+ struct CB_Objecter_GetVersion {
+ Objecter *objecter;
+ std::unique_ptr<OpCompletion> fin;
+
+ CB_Objecter_GetVersion(Objecter *o, std::unique_ptr<OpCompletion> c)
+ : objecter(o), fin(std::move(c)) {}
+ void operator()(boost::system::error_code ec, version_t newest,
+ version_t oldest) {
+ if (ec == boost::system::errc::resource_unavailable_try_again) {
+ // try again as instructed
+ objecter->_wait_for_latest_osdmap(std::move(*this));
+ } else if (ec) {
+ ceph::async::post(std::move(fin), ec);
+ } else {
+ auto l = std::unique_lock(objecter->rwlock);
+ objecter->_get_latest_version(oldest, newest, std::move(fin),
+ std::move(l));
+ }
+ }
+ };
+
+ template<typename CompletionToken>
+ auto wait_for_map(epoch_t epoch, CompletionToken&& token) {
+ boost::asio::async_completion<CompletionToken, OpSignature> init(token);
+
+ if (osdmap->get_epoch() >= epoch) {
+ boost::asio::post(service,
+ ceph::async::bind_handler(
+ std::move(init.completion_handler),
+ boost::system::error_code()));
+ } else {
+ monc->get_version("osdmap",
+ CB_Objecter_GetVersion(
+ this,
+ OpCompletion::create(service.get_executor(),
+ std::move(init.completion_handler))));
+ }
+ return init.result.get();
+ }
+
+ void _wait_for_new_map(std::unique_ptr<OpCompletion>, epoch_t epoch,
+ boost::system::error_code = {});
+
+private:
+ void _wait_for_latest_osdmap(CB_Objecter_GetVersion&& c) {
+ monc->get_version("osdmap", std::move(c));
+ }
+
+public:
+
+ template<typename CompletionToken>
+ auto wait_for_latest_osdmap(CompletionToken&& token) {
+ boost::asio::async_completion<CompletionToken, OpSignature> init(token);
+
+ monc->get_version("osdmap",
+ CB_Objecter_GetVersion(
+ this,
+ OpCompletion::create(service.get_executor(),
+ std::move(init.completion_handler))));
+ return init.result.get();
+ }
+
+ void wait_for_latest_osdmap(std::unique_ptr<OpCompletion> c) {
+ monc->get_version("osdmap",
+ CB_Objecter_GetVersion(this, std::move(c)));
+ }
+
+ template<typename CompletionToken>
+ auto get_latest_version(epoch_t oldest, epoch_t newest,
+ CompletionToken&& token) {
+ boost::asio::async_completion<CompletionToken, OpSignature> init(token);
+ {
+ std::unique_lock wl(rwlock);
+ _get_latest_version(oldest, newest,
+ OpCompletion::create(
+ service.get_executor(),
+ std::move(init.completion_handler)),
+ std::move(wl));
+ }
+ return init.result.get();
+ }
+
+ void _get_latest_version(epoch_t oldest, epoch_t neweset,
+ std::unique_ptr<OpCompletion> fin,
+ std::unique_lock<ceph::shared_mutex>&& ul);
+
+ /** Get the current set of global op flags */
+ int get_global_op_flags() const { return global_op_flags; }
+ /** Add a flag to the global op flags, not really atomic operation */
+ void add_global_op_flags(int flag) {
+ global_op_flags.fetch_or(flag);
+ }
+ /** Clear the passed flags from the global op flag set */
+ void clear_global_op_flag(int flags) {
+ global_op_flags.fetch_and(~flags);
+ }
+
+ /// cancel an in-progress request with the given return code
+private:
+ int op_cancel(OSDSession *s, ceph_tid_t tid, int r);
+ int _op_cancel(ceph_tid_t tid, int r);
+public:
+ int op_cancel(ceph_tid_t tid, int r);
+ int op_cancel(const std::vector<ceph_tid_t>& tidls, int r);
+
+ /**
+ * Any write op which is in progress at the start of this call shall no
+ * longer be in progress when this call ends. Operations started after the
+ * start of this call may still be in progress when this call ends.
+ *
+ * @return the latest possible epoch in which a cancelled op could have
+ * existed, or -1 if nothing was cancelled.
+ */
+ epoch_t op_cancel_writes(int r, int64_t pool=-1);
+
+ // commands
+ void osd_command(int osd, std::vector<std::string> cmd,
+ ceph::buffer::list inbl, ceph_tid_t *ptid,
+ decltype(CommandOp::onfinish)&& onfinish) {
+ ceph_assert(osd >= 0);
+ auto c = new CommandOp(
+ osd,
+ std::move(cmd),
+ std::move(inbl),
+ std::move(onfinish));
+ submit_command(c, ptid);
+ }
+ template<typename CompletionToken>
+ auto osd_command(int osd, std::vector<std::string> cmd,
+ ceph::buffer::list inbl, ceph_tid_t *ptid,
+ CompletionToken&& token) {
+ boost::asio::async_completion<CompletionToken,
+ CommandOp::OpSig> init(token);
+ osd_command(osd, std::move(cmd), std::move(inbl), ptid,
+ CommandOp::OpComp::create(service.get_executor(),
+ std::move(init.completion_handler)));
+ return init.result.get();
+ }
+
+ void pg_command(pg_t pgid, std::vector<std::string> cmd,
+ ceph::buffer::list inbl, ceph_tid_t *ptid,
+ decltype(CommandOp::onfinish)&& onfinish) {
+ auto *c = new CommandOp(
+ pgid,
+ std::move(cmd),
+ std::move(inbl),
+ std::move(onfinish));
+ submit_command(c, ptid);
+ }
+
+ template<typename CompletionToken>
+ auto pg_command(pg_t pgid, std::vector<std::string> cmd,
+ ceph::buffer::list inbl, ceph_tid_t *ptid,
+ CompletionToken&& token) {
+ boost::asio::async_completion<CompletionToken,
+ CommandOp::OpSig> init(token);
+ pg_command(pgid, std::move(cmd), std::move(inbl), ptid,
+ CommandOp::OpComp::create(service.get_executor(),
+ std::move(init.completion_handler)));
+ return init.result.get();
+ }
+
+ // mid-level helpers
+ Op *prepare_mutate_op(
+ const object_t& oid, const object_locator_t& oloc,
+ ObjectOperation& op, const SnapContext& snapc,
+ ceph::real_time mtime, int flags,
+ Context *oncommit, version_t *objver = NULL,
+ osd_reqid_t reqid = osd_reqid_t(),
+ ZTracer::Trace *parent_trace = nullptr) {
+ Op *o = new Op(oid, oloc, std::move(op.ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_WRITE, oncommit, objver,
+ nullptr, parent_trace);
+ o->priority = op.priority;
+ o->mtime = mtime;
+ o->snapc = snapc;
+ o->out_rval.swap(op.out_rval);
+ o->out_bl.swap(op.out_bl);
+ o->out_handler.swap(op.out_handler);
+ o->out_ec.swap(op.out_ec);
+ o->reqid = reqid;
+ op.clear();
+ return o;
+ }
+ ceph_tid_t mutate(
+ const object_t& oid, const object_locator_t& oloc,
+ ObjectOperation& op, const SnapContext& snapc,
+ ceph::real_time mtime, int flags,
+ Context *oncommit, version_t *objver = NULL,
+ osd_reqid_t reqid = osd_reqid_t()) {
+ Op *o = prepare_mutate_op(oid, oloc, op, snapc, mtime, flags,
+ oncommit, objver, reqid);
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+
+ void mutate(const object_t& oid, const object_locator_t& oloc,
+ ObjectOperation&& op, const SnapContext& snapc,
+ ceph::real_time mtime, int flags,
+ std::unique_ptr<Op::OpComp>&& oncommit,
+ version_t *objver = NULL, osd_reqid_t reqid = osd_reqid_t(),
+ ZTracer::Trace *parent_trace = nullptr) {
+ Op *o = new Op(oid, oloc, std::move(op.ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_WRITE, std::move(oncommit), objver,
+ nullptr, parent_trace);
+ o->priority = op.priority;
+ o->mtime = mtime;
+ o->snapc = snapc;
+ o->out_bl.swap(op.out_bl);
+ o->out_handler.swap(op.out_handler);
+ o->out_rval.swap(op.out_rval);
+ o->out_ec.swap(op.out_ec);
+ o->reqid = reqid;
+ op.clear();
+ op_submit(o);
+ }
+
+ Op *prepare_read_op(
+ const object_t& oid, const object_locator_t& oloc,
+ ObjectOperation& op,
+ snapid_t snapid, ceph::buffer::list *pbl, int flags,
+ Context *onack, version_t *objver = NULL,
+ int *data_offset = NULL,
+ uint64_t features = 0,
+ ZTracer::Trace *parent_trace = nullptr) {
+ Op *o = new Op(oid, oloc, std::move(op.ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_READ, onack, objver,
+ data_offset, parent_trace);
+ o->priority = op.priority;
+ o->snapid = snapid;
+ o->outbl = pbl;
+ if (!o->outbl && op.size() == 1 && op.out_bl[0] && op.out_bl[0]->length())
+ o->outbl = op.out_bl[0];
+ o->out_bl.swap(op.out_bl);
+ o->out_handler.swap(op.out_handler);
+ o->out_rval.swap(op.out_rval);
+ o->out_ec.swap(op.out_ec);
+ op.clear();
+ return o;
+ }
+ ceph_tid_t read(
+ const object_t& oid, const object_locator_t& oloc,
+ ObjectOperation& op,
+ snapid_t snapid, ceph::buffer::list *pbl, int flags,
+ Context *onack, version_t *objver = NULL,
+ int *data_offset = NULL,
+ uint64_t features = 0) {
+ Op *o = prepare_read_op(oid, oloc, op, snapid, pbl, flags, onack, objver,
+ data_offset);
+ if (features)
+ o->features = features;
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+
+ void read(const object_t& oid, const object_locator_t& oloc,
+ ObjectOperation&& op, snapid_t snapid, ceph::buffer::list *pbl,
+ int flags, std::unique_ptr<Op::OpComp>&& onack,
+ version_t *objver = nullptr, int *data_offset = nullptr,
+ uint64_t features = 0, ZTracer::Trace *parent_trace = nullptr) {
+ Op *o = new Op(oid, oloc, std::move(op.ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_READ, std::move(onack), objver,
+ data_offset, parent_trace);
+ o->priority = op.priority;
+ o->snapid = snapid;
+ o->outbl = pbl;
+ // XXX
+ if (!o->outbl && op.size() == 1 && op.out_bl[0] && op.out_bl[0]->length()) {
+ o->outbl = op.out_bl[0];
+ }
+ o->out_bl.swap(op.out_bl);
+ o->out_handler.swap(op.out_handler);
+ o->out_rval.swap(op.out_rval);
+ o->out_ec.swap(op.out_ec);
+ if (features)
+ o->features = features;
+ op.clear();
+ op_submit(o);
+ }
+
+
+ Op *prepare_pg_read_op(
+ uint32_t hash, object_locator_t oloc,
+ ObjectOperation& op, ceph::buffer::list *pbl, int flags,
+ Context *onack, epoch_t *reply_epoch,
+ int *ctx_budget) {
+ Op *o = new Op(object_t(), oloc,
+ std::move(op.ops),
+ flags | global_op_flags | CEPH_OSD_FLAG_READ |
+ CEPH_OSD_FLAG_IGNORE_OVERLAY,
+ onack, NULL);
+ o->target.precalc_pgid = true;
+ o->target.base_pgid = pg_t(hash, oloc.pool);
+ o->priority = op.priority;
+ o->snapid = CEPH_NOSNAP;
+ o->outbl = pbl;
+ o->out_bl.swap(op.out_bl);
+ o->out_handler.swap(op.out_handler);
+ o->out_rval.swap(op.out_rval);
+ o->out_ec.swap(op.out_ec);
+ o->reply_epoch = reply_epoch;
+ if (ctx_budget) {
+ // budget is tracked by listing context
+ o->ctx_budgeted = true;
+ }
+ op.clear();
+ return o;
+ }
+ ceph_tid_t pg_read(
+ uint32_t hash, object_locator_t oloc,
+ ObjectOperation& op, ceph::buffer::list *pbl, int flags,
+ Context *onack, epoch_t *reply_epoch,
+ int *ctx_budget) {
+ Op *o = prepare_pg_read_op(hash, oloc, op, pbl, flags,
+ onack, reply_epoch, ctx_budget);
+ ceph_tid_t tid;
+ op_submit(o, &tid, ctx_budget);
+ return tid;
+ }
+
+ ceph_tid_t pg_read(
+ uint32_t hash, object_locator_t oloc,
+ ObjectOperation& op, ceph::buffer::list *pbl, int flags,
+ std::unique_ptr<Op::OpComp>&& onack, epoch_t *reply_epoch, int *ctx_budget) {
+ ceph_tid_t tid;
+ Op *o = new Op(object_t(), oloc,
+ std::move(op.ops),
+ flags | global_op_flags | CEPH_OSD_FLAG_READ |
+ CEPH_OSD_FLAG_IGNORE_OVERLAY,
+ std::move(onack), nullptr);
+ o->target.precalc_pgid = true;
+ o->target.base_pgid = pg_t(hash, oloc.pool);
+ o->priority = op.priority;
+ o->snapid = CEPH_NOSNAP;
+ o->outbl = pbl;
+ o->out_bl.swap(op.out_bl);
+ o->out_handler.swap(op.out_handler);
+ o->out_rval.swap(op.out_rval);
+ o->out_ec.swap(op.out_ec);
+ o->reply_epoch = reply_epoch;
+ if (ctx_budget) {
+ // budget is tracked by listing context
+ o->ctx_budgeted = true;
+ }
+ op_submit(o, &tid, ctx_budget);
+ op.clear();
+ return tid;
+ }
+
+ // caller owns a ref
+ LingerOp *linger_register(const object_t& oid, const object_locator_t& oloc,
+ int flags);
+ ceph_tid_t linger_watch(LingerOp *info,
+ ObjectOperation& op,
+ const SnapContext& snapc, ceph::real_time mtime,
+ ceph::buffer::list& inbl,
+ decltype(info->on_reg_commit)&& oncommit,
+ version_t *objver);
+ ceph_tid_t linger_watch(LingerOp *info,
+ ObjectOperation& op,
+ const SnapContext& snapc, ceph::real_time mtime,
+ ceph::buffer::list& inbl,
+ Context* onfinish,
+ version_t *objver) {
+ return linger_watch(info, op, snapc, mtime, inbl,
+ OpContextVert<ceph::buffer::list>(onfinish, nullptr), objver);
+ }
+ ceph_tid_t linger_notify(LingerOp *info,
+ ObjectOperation& op,
+ snapid_t snap, ceph::buffer::list& inbl,
+ decltype(LingerOp::on_reg_commit)&& onfinish,
+ version_t *objver);
+ ceph_tid_t linger_notify(LingerOp *info,
+ ObjectOperation& op,
+ snapid_t snap, ceph::buffer::list& inbl,
+ ceph::buffer::list *poutbl,
+ Context* onack,
+ version_t *objver) {
+ return linger_notify(info, op, snap, inbl,
+ OpContextVert(onack, poutbl),
+ objver);
+ }
+ tl::expected<ceph::timespan,
+ boost::system::error_code> linger_check(LingerOp *info);
+ void linger_cancel(LingerOp *info); // releases a reference
+ void _linger_cancel(LingerOp *info);
+
+ void _do_watch_notify(boost::intrusive_ptr<LingerOp> info,
+ boost::intrusive_ptr<MWatchNotify> m);
+
+ /**
+ * set up initial ops in the op std::vector, and allocate a final op slot.
+ *
+ * The caller is responsible for filling in the final ops_count ops.
+ *
+ * @param ops op std::vector
+ * @param ops_count number of final ops the caller will fill in
+ * @param extra_ops pointer to [array of] initial op[s]
+ * @return index of final op (for caller to fill in)
+ */
+ int init_ops(boost::container::small_vector_base<OSDOp>& ops, int ops_count,
+ ObjectOperation *extra_ops) {
+ int i;
+ int extra = 0;
+
+ if (extra_ops)
+ extra = extra_ops->ops.size();
+
+ ops.resize(ops_count + extra);
+
+ for (i=0; i<extra; i++) {
+ ops[i] = extra_ops->ops[i];
+ }
+
+ return i;
+ }
+
+
+ // high-level helpers
+ Op *prepare_stat_op(
+ const object_t& oid, const object_locator_t& oloc,
+ snapid_t snap, uint64_t *psize, ceph::real_time *pmtime,
+ int flags, Context *onfinish, version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL) {
+ osdc_opvec ops;
+ int i = init_ops(ops, 1, extra_ops);
+ ops[i].op.op = CEPH_OSD_OP_STAT;
+ C_Stat *fin = new C_Stat(psize, pmtime, onfinish);
+ Op *o = new Op(oid, oloc, std::move(ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_READ, fin, objver);
+ o->snapid = snap;
+ o->outbl = &fin->bl;
+ return o;
+ }
+ ceph_tid_t stat(
+ const object_t& oid, const object_locator_t& oloc,
+ snapid_t snap, uint64_t *psize, ceph::real_time *pmtime,
+ int flags, Context *onfinish, version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL) {
+ Op *o = prepare_stat_op(oid, oloc, snap, psize, pmtime, flags,
+ onfinish, objver, extra_ops);
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+
+ Op *prepare_read_op(
+ const object_t& oid, const object_locator_t& oloc,
+ uint64_t off, uint64_t len, snapid_t snap, ceph::buffer::list *pbl,
+ int flags, Context *onfinish, version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL, int op_flags = 0,
+ ZTracer::Trace *parent_trace = nullptr) {
+ osdc_opvec ops;
+ int i = init_ops(ops, 1, extra_ops);
+ ops[i].op.op = CEPH_OSD_OP_READ;
+ ops[i].op.extent.offset = off;
+ ops[i].op.extent.length = len;
+ ops[i].op.extent.truncate_size = 0;
+ ops[i].op.extent.truncate_seq = 0;
+ ops[i].op.flags = op_flags;
+ Op *o = new Op(oid, oloc, std::move(ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_READ, onfinish, objver,
+ nullptr, parent_trace);
+ o->snapid = snap;
+ o->outbl = pbl;
+ return o;
+ }
+ ceph_tid_t read(
+ const object_t& oid, const object_locator_t& oloc,
+ uint64_t off, uint64_t len, snapid_t snap, ceph::buffer::list *pbl,
+ int flags, Context *onfinish, version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL, int op_flags = 0) {
+ Op *o = prepare_read_op(oid, oloc, off, len, snap, pbl, flags,
+ onfinish, objver, extra_ops, op_flags);
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+
+ Op *prepare_cmpext_op(
+ const object_t& oid, const object_locator_t& oloc,
+ uint64_t off, ceph::buffer::list &cmp_bl,
+ snapid_t snap, int flags, Context *onfinish, version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL, int op_flags = 0) {
+ osdc_opvec ops;
+ int i = init_ops(ops, 1, extra_ops);
+ ops[i].op.op = CEPH_OSD_OP_CMPEXT;
+ ops[i].op.extent.offset = off;
+ ops[i].op.extent.length = cmp_bl.length();
+ ops[i].op.extent.truncate_size = 0;
+ ops[i].op.extent.truncate_seq = 0;
+ ops[i].indata = cmp_bl;
+ ops[i].op.flags = op_flags;
+ Op *o = new Op(oid, oloc, std::move(ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_READ, onfinish, objver);
+ o->snapid = snap;
+ return o;
+ }
+
+ ceph_tid_t cmpext(
+ const object_t& oid, const object_locator_t& oloc,
+ uint64_t off, ceph::buffer::list &cmp_bl,
+ snapid_t snap, int flags, Context *onfinish, version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL, int op_flags = 0) {
+ Op *o = prepare_cmpext_op(oid, oloc, off, cmp_bl, snap,
+ flags, onfinish, objver, extra_ops, op_flags);
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+
+ ceph_tid_t read_trunc(const object_t& oid, const object_locator_t& oloc,
+ uint64_t off, uint64_t len, snapid_t snap,
+ ceph::buffer::list *pbl, int flags, uint64_t trunc_size,
+ __u32 trunc_seq, Context *onfinish,
+ version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL, int op_flags = 0) {
+ osdc_opvec ops;
+ int i = init_ops(ops, 1, extra_ops);
+ ops[i].op.op = CEPH_OSD_OP_READ;
+ ops[i].op.extent.offset = off;
+ ops[i].op.extent.length = len;
+ ops[i].op.extent.truncate_size = trunc_size;
+ ops[i].op.extent.truncate_seq = trunc_seq;
+ ops[i].op.flags = op_flags;
+ Op *o = new Op(oid, oloc, std::move(ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_READ, onfinish, objver);
+ o->snapid = snap;
+ o->outbl = pbl;
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+ ceph_tid_t mapext(const object_t& oid, const object_locator_t& oloc,
+ uint64_t off, uint64_t len, snapid_t snap, ceph::buffer::list *pbl,
+ int flags, Context *onfinish, version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL) {
+ osdc_opvec ops;
+ int i = init_ops(ops, 1, extra_ops);
+ ops[i].op.op = CEPH_OSD_OP_MAPEXT;
+ ops[i].op.extent.offset = off;
+ ops[i].op.extent.length = len;
+ ops[i].op.extent.truncate_size = 0;
+ ops[i].op.extent.truncate_seq = 0;
+ Op *o = new Op(oid, oloc, std::move(ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_READ, onfinish, objver);
+ o->snapid = snap;
+ o->outbl = pbl;
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+ ceph_tid_t getxattr(const object_t& oid, const object_locator_t& oloc,
+ const char *name, snapid_t snap, ceph::buffer::list *pbl, int flags,
+ Context *onfinish,
+ version_t *objver = NULL, ObjectOperation *extra_ops = NULL) {
+ osdc_opvec ops;
+ int i = init_ops(ops, 1, extra_ops);
+ ops[i].op.op = CEPH_OSD_OP_GETXATTR;
+ ops[i].op.xattr.name_len = (name ? strlen(name) : 0);
+ ops[i].op.xattr.value_len = 0;
+ if (name)
+ ops[i].indata.append(name, ops[i].op.xattr.name_len);
+ Op *o = new Op(oid, oloc, std::move(ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_READ, onfinish, objver);
+ o->snapid = snap;
+ o->outbl = pbl;
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+
+ ceph_tid_t getxattrs(const object_t& oid, const object_locator_t& oloc,
+ snapid_t snap, std::map<std::string,ceph::buffer::list>& attrset,
+ int flags, Context *onfinish, version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL) {
+ osdc_opvec ops;
+ int i = init_ops(ops, 1, extra_ops);
+ ops[i].op.op = CEPH_OSD_OP_GETXATTRS;
+ C_GetAttrs *fin = new C_GetAttrs(attrset, onfinish);
+ Op *o = new Op(oid, oloc, std::move(ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_READ, fin, objver);
+ o->snapid = snap;
+ o->outbl = &fin->bl;
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+
+ ceph_tid_t read_full(const object_t& oid, const object_locator_t& oloc,
+ snapid_t snap, ceph::buffer::list *pbl, int flags,
+ Context *onfinish, version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL) {
+ return read(oid, oloc, 0, 0, snap, pbl, flags | global_op_flags |
+ CEPH_OSD_FLAG_READ, onfinish, objver, extra_ops);
+ }
+
+
+ // writes
+ ceph_tid_t _modify(const object_t& oid, const object_locator_t& oloc,
+ osdc_opvec& ops,
+ ceph::real_time mtime,
+ const SnapContext& snapc, int flags,
+ Context *oncommit,
+ version_t *objver = NULL) {
+ Op *o = new Op(oid, oloc, std::move(ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_WRITE, oncommit, objver);
+ o->mtime = mtime;
+ o->snapc = snapc;
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+ Op *prepare_write_op(
+ const object_t& oid, const object_locator_t& oloc,
+ uint64_t off, uint64_t len, const SnapContext& snapc,
+ const ceph::buffer::list &bl, ceph::real_time mtime, int flags,
+ Context *oncommit, version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL, int op_flags = 0,
+ ZTracer::Trace *parent_trace = nullptr) {
+ osdc_opvec ops;
+ int i = init_ops(ops, 1, extra_ops);
+ ops[i].op.op = CEPH_OSD_OP_WRITE;
+ ops[i].op.extent.offset = off;
+ ops[i].op.extent.length = len;
+ ops[i].op.extent.truncate_size = 0;
+ ops[i].op.extent.truncate_seq = 0;
+ ops[i].indata = bl;
+ ops[i].op.flags = op_flags;
+ Op *o = new Op(oid, oloc, std::move(ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_WRITE, std::move(oncommit), objver,
+ nullptr, parent_trace);
+ o->mtime = mtime;
+ o->snapc = snapc;
+ return o;
+ }
+ ceph_tid_t write(
+ const object_t& oid, const object_locator_t& oloc,
+ uint64_t off, uint64_t len, const SnapContext& snapc,
+ const ceph::buffer::list &bl, ceph::real_time mtime, int flags,
+ Context *oncommit, version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL, int op_flags = 0) {
+ Op *o = prepare_write_op(oid, oloc, off, len, snapc, bl, mtime, flags,
+ oncommit, objver, extra_ops, op_flags);
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+ Op *prepare_append_op(
+ const object_t& oid, const object_locator_t& oloc,
+ uint64_t len, const SnapContext& snapc,
+ const ceph::buffer::list &bl, ceph::real_time mtime, int flags,
+ Context *oncommit,
+ version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL) {
+ osdc_opvec ops;
+ int i = init_ops(ops, 1, extra_ops);
+ ops[i].op.op = CEPH_OSD_OP_APPEND;
+ ops[i].op.extent.offset = 0;
+ ops[i].op.extent.length = len;
+ ops[i].op.extent.truncate_size = 0;
+ ops[i].op.extent.truncate_seq = 0;
+ ops[i].indata = bl;
+ Op *o = new Op(oid, oloc, std::move(ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_WRITE, oncommit, objver);
+ o->mtime = mtime;
+ o->snapc = snapc;
+ return o;
+ }
+ ceph_tid_t append(
+ const object_t& oid, const object_locator_t& oloc,
+ uint64_t len, const SnapContext& snapc,
+ const ceph::buffer::list &bl, ceph::real_time mtime, int flags,
+ Context *oncommit,
+ version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL) {
+ Op *o = prepare_append_op(oid, oloc, len, snapc, bl, mtime, flags,
+ oncommit, objver, extra_ops);
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+ ceph_tid_t write_trunc(const object_t& oid, const object_locator_t& oloc,
+ uint64_t off, uint64_t len, const SnapContext& snapc,
+ const ceph::buffer::list &bl, ceph::real_time mtime, int flags,
+ uint64_t trunc_size, __u32 trunc_seq,
+ Context *oncommit,
+ version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL, int op_flags = 0) {
+ osdc_opvec ops;
+ int i = init_ops(ops, 1, extra_ops);
+ ops[i].op.op = CEPH_OSD_OP_WRITE;
+ ops[i].op.extent.offset = off;
+ ops[i].op.extent.length = len;
+ ops[i].op.extent.truncate_size = trunc_size;
+ ops[i].op.extent.truncate_seq = trunc_seq;
+ ops[i].indata = bl;
+ ops[i].op.flags = op_flags;
+ Op *o = new Op(oid, oloc, std::move(ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_WRITE, oncommit, objver);
+ o->mtime = mtime;
+ o->snapc = snapc;
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+ Op *prepare_write_full_op(
+ const object_t& oid, const object_locator_t& oloc,
+ const SnapContext& snapc, const ceph::buffer::list &bl,
+ ceph::real_time mtime, int flags,
+ Context *oncommit, version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL, int op_flags = 0) {
+ osdc_opvec ops;
+ int i = init_ops(ops, 1, extra_ops);
+ ops[i].op.op = CEPH_OSD_OP_WRITEFULL;
+ ops[i].op.extent.offset = 0;
+ ops[i].op.extent.length = bl.length();
+ ops[i].indata = bl;
+ ops[i].op.flags = op_flags;
+ Op *o = new Op(oid, oloc, std::move(ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_WRITE, oncommit, objver);
+ o->mtime = mtime;
+ o->snapc = snapc;
+ return o;
+ }
+ ceph_tid_t write_full(
+ const object_t& oid, const object_locator_t& oloc,
+ const SnapContext& snapc, const ceph::buffer::list &bl,
+ ceph::real_time mtime, int flags,
+ Context *oncommit, version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL, int op_flags = 0) {
+ Op *o = prepare_write_full_op(oid, oloc, snapc, bl, mtime, flags,
+ oncommit, objver, extra_ops, op_flags);
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+ Op *prepare_writesame_op(
+ const object_t& oid, const object_locator_t& oloc,
+ uint64_t write_len, uint64_t off,
+ const SnapContext& snapc, const ceph::buffer::list &bl,
+ ceph::real_time mtime, int flags,
+ Context *oncommit, version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL, int op_flags = 0) {
+
+ osdc_opvec ops;
+ int i = init_ops(ops, 1, extra_ops);
+ ops[i].op.op = CEPH_OSD_OP_WRITESAME;
+ ops[i].op.writesame.offset = off;
+ ops[i].op.writesame.length = write_len;
+ ops[i].op.writesame.data_length = bl.length();
+ ops[i].indata = bl;
+ ops[i].op.flags = op_flags;
+ Op *o = new Op(oid, oloc, std::move(ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_WRITE, oncommit, objver);
+ o->mtime = mtime;
+ o->snapc = snapc;
+ return o;
+ }
+ ceph_tid_t writesame(
+ const object_t& oid, const object_locator_t& oloc,
+ uint64_t write_len, uint64_t off,
+ const SnapContext& snapc, const ceph::buffer::list &bl,
+ ceph::real_time mtime, int flags,
+ Context *oncommit, version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL, int op_flags = 0) {
+
+ Op *o = prepare_writesame_op(oid, oloc, write_len, off, snapc, bl,
+ mtime, flags, oncommit, objver,
+ extra_ops, op_flags);
+
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+ ceph_tid_t trunc(const object_t& oid, const object_locator_t& oloc,
+ const SnapContext& snapc, ceph::real_time mtime, int flags,
+ uint64_t trunc_size, __u32 trunc_seq,
+ Context *oncommit, version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL) {
+ osdc_opvec ops;
+ int i = init_ops(ops, 1, extra_ops);
+ ops[i].op.op = CEPH_OSD_OP_TRUNCATE;
+ ops[i].op.extent.offset = trunc_size;
+ ops[i].op.extent.truncate_size = trunc_size;
+ ops[i].op.extent.truncate_seq = trunc_seq;
+ Op *o = new Op(oid, oloc, std::move(ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_WRITE, oncommit, objver);
+ o->mtime = mtime;
+ o->snapc = snapc;
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+ ceph_tid_t zero(const object_t& oid, const object_locator_t& oloc,
+ uint64_t off, uint64_t len, const SnapContext& snapc,
+ ceph::real_time mtime, int flags, Context *oncommit,
+ version_t *objver = NULL, ObjectOperation *extra_ops = NULL) {
+ osdc_opvec ops;
+ int i = init_ops(ops, 1, extra_ops);
+ ops[i].op.op = CEPH_OSD_OP_ZERO;
+ ops[i].op.extent.offset = off;
+ ops[i].op.extent.length = len;
+ Op *o = new Op(oid, oloc, std::move(ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_WRITE, oncommit, objver);
+ o->mtime = mtime;
+ o->snapc = snapc;
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+ ceph_tid_t rollback_object(const object_t& oid, const object_locator_t& oloc,
+ const SnapContext& snapc, snapid_t snapid,
+ ceph::real_time mtime, Context *oncommit,
+ version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL) {
+ osdc_opvec ops;
+ int i = init_ops(ops, 1, extra_ops);
+ ops[i].op.op = CEPH_OSD_OP_ROLLBACK;
+ ops[i].op.snap.snapid = snapid;
+ Op *o = new Op(oid, oloc, std::move(ops), CEPH_OSD_FLAG_WRITE, oncommit, objver);
+ o->mtime = mtime;
+ o->snapc = snapc;
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+ ceph_tid_t create(const object_t& oid, const object_locator_t& oloc,
+ const SnapContext& snapc, ceph::real_time mtime, int global_flags,
+ int create_flags, Context *oncommit,
+ version_t *objver = NULL,
+ ObjectOperation *extra_ops = NULL) {
+ osdc_opvec ops;
+ int i = init_ops(ops, 1, extra_ops);
+ ops[i].op.op = CEPH_OSD_OP_CREATE;
+ ops[i].op.flags = create_flags;
+ Op *o = new Op(oid, oloc, std::move(ops), global_flags | global_op_flags |
+ CEPH_OSD_FLAG_WRITE, oncommit, objver);
+ o->mtime = mtime;
+ o->snapc = snapc;
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+ Op *prepare_remove_op(
+ const object_t& oid, const object_locator_t& oloc,
+ const SnapContext& snapc, ceph::real_time mtime, int flags,
+ Context *oncommit,
+ version_t *objver = NULL, ObjectOperation *extra_ops = NULL) {
+ osdc_opvec ops;
+ int i = init_ops(ops, 1, extra_ops);
+ ops[i].op.op = CEPH_OSD_OP_DELETE;
+ Op *o = new Op(oid, oloc, std::move(ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_WRITE, oncommit, objver);
+ o->mtime = mtime;
+ o->snapc = snapc;
+ return o;
+ }
+ ceph_tid_t remove(
+ const object_t& oid, const object_locator_t& oloc,
+ const SnapContext& snapc, ceph::real_time mtime, int flags,
+ Context *oncommit,
+ version_t *objver = NULL, ObjectOperation *extra_ops = NULL) {
+ Op *o = prepare_remove_op(oid, oloc, snapc, mtime, flags,
+ oncommit, objver, extra_ops);
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+
+ ceph_tid_t setxattr(const object_t& oid, const object_locator_t& oloc,
+ const char *name, const SnapContext& snapc, const ceph::buffer::list &bl,
+ ceph::real_time mtime, int flags,
+ Context *oncommit,
+ version_t *objver = NULL, ObjectOperation *extra_ops = NULL) {
+ osdc_opvec ops;
+ int i = init_ops(ops, 1, extra_ops);
+ ops[i].op.op = CEPH_OSD_OP_SETXATTR;
+ ops[i].op.xattr.name_len = (name ? strlen(name) : 0);
+ ops[i].op.xattr.value_len = bl.length();
+ if (name)
+ ops[i].indata.append(name, ops[i].op.xattr.name_len);
+ ops[i].indata.append(bl);
+ Op *o = new Op(oid, oloc, std::move(ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_WRITE, oncommit,
+ objver);
+ o->mtime = mtime;
+ o->snapc = snapc;
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+ ceph_tid_t removexattr(const object_t& oid, const object_locator_t& oloc,
+ const char *name, const SnapContext& snapc,
+ ceph::real_time mtime, int flags,
+ Context *oncommit,
+ version_t *objver = NULL, ObjectOperation *extra_ops = NULL) {
+ osdc_opvec ops;
+ int i = init_ops(ops, 1, extra_ops);
+ ops[i].op.op = CEPH_OSD_OP_RMXATTR;
+ ops[i].op.xattr.name_len = (name ? strlen(name) : 0);
+ ops[i].op.xattr.value_len = 0;
+ if (name)
+ ops[i].indata.append(name, ops[i].op.xattr.name_len);
+ Op *o = new Op(oid, oloc, std::move(ops), flags | global_op_flags |
+ CEPH_OSD_FLAG_WRITE, oncommit, objver);
+ o->mtime = mtime;
+ o->snapc = snapc;
+ ceph_tid_t tid;
+ op_submit(o, &tid);
+ return tid;
+ }
+
+ void list_nobjects(NListContext *p, Context *onfinish);
+ uint32_t list_nobjects_seek(NListContext *p, uint32_t pos);
+ uint32_t list_nobjects_seek(NListContext *list_context, const hobject_t& c);
+ void list_nobjects_get_cursor(NListContext *list_context, hobject_t *c);
+
+ hobject_t enumerate_objects_begin();
+ hobject_t enumerate_objects_end();
+
+ template<typename T>
+ friend struct EnumerationContext;
+ template<typename T>
+ friend struct CB_EnumerateReply;
+ template<typename T>
+ void enumerate_objects(
+ int64_t pool_id,
+ std::string_view ns,
+ hobject_t start,
+ hobject_t end,
+ const uint32_t max,
+ const ceph::buffer::list& filter_bl,
+ fu2::unique_function<void(boost::system::error_code,
+ std::vector<T>,
+ hobject_t) &&> on_finish);
+ template<typename T>
+ void _issue_enumerate(hobject_t start,
+ std::unique_ptr<EnumerationContext<T>>);
+ template<typename T>
+ void _enumerate_reply(
+ ceph::buffer::list&& bl,
+ boost::system::error_code ec,
+ std::unique_ptr<EnumerationContext<T>>&& ectx);
+
+ // -------------------------
+ // pool ops
+private:
+ void pool_op_submit(PoolOp *op);
+ void _pool_op_submit(PoolOp *op);
+ void _finish_pool_op(PoolOp *op, int r);
+ void _do_delete_pool(int64_t pool,
+ decltype(PoolOp::onfinish)&& onfinish);
+
+public:
+ void create_pool_snap(int64_t pool, std::string_view snapName,
+ decltype(PoolOp::onfinish)&& onfinish);
+ void create_pool_snap(int64_t pool, std::string_view snapName,
+ Context* c) {
+ create_pool_snap(pool, snapName,
+ OpContextVert<ceph::buffer::list>(c, nullptr));
+ }
+ void allocate_selfmanaged_snap(int64_t pool,
+ std::unique_ptr<ceph::async::Completion<
+ void(boost::system::error_code,
+ snapid_t)>> onfinish);
+ void allocate_selfmanaged_snap(int64_t pool, snapid_t* psnapid,
+ Context* c) {
+ allocate_selfmanaged_snap(pool,
+ OpContextVert(c, psnapid));
+ }
+ void delete_pool_snap(int64_t pool, std::string_view snapName,
+ decltype(PoolOp::onfinish)&& onfinish);
+ void delete_pool_snap(int64_t pool, std::string_view snapName,
+ Context* c) {
+ delete_pool_snap(pool, snapName,
+ OpContextVert<ceph::buffer::list>(c, nullptr));
+ }
+
+ void delete_selfmanaged_snap(int64_t pool, snapid_t snap,
+ decltype(PoolOp::onfinish)&& onfinish);
+ void delete_selfmanaged_snap(int64_t pool, snapid_t snap,
+ Context* c) {
+ delete_selfmanaged_snap(pool, snap,
+ OpContextVert<ceph::buffer::list>(c, nullptr));
+ }
+
+
+ void create_pool(std::string_view name,
+ decltype(PoolOp::onfinish)&& onfinish,
+ int crush_rule=-1);
+ void create_pool(std::string_view name, Context *onfinish,
+ int crush_rule=-1) {
+ create_pool(name,
+ OpContextVert<ceph::buffer::list>(onfinish, nullptr),
+ crush_rule);
+ }
+ void delete_pool(int64_t pool,
+ decltype(PoolOp::onfinish)&& onfinish);
+ void delete_pool(int64_t pool,
+ Context* onfinish) {
+ delete_pool(pool, OpContextVert<ceph::buffer::list>(onfinish, nullptr));
+ }
+
+ void delete_pool(std::string_view name,
+ decltype(PoolOp::onfinish)&& onfinish);
+
+ void delete_pool(std::string_view name,
+ Context* onfinish) {
+ delete_pool(name, OpContextVert<ceph::buffer::list>(onfinish, nullptr));
+ }
+
+ void handle_pool_op_reply(MPoolOpReply *m);
+ int pool_op_cancel(ceph_tid_t tid, int r);
+
+ // --------------------------
+ // pool stats
+private:
+ void _poolstat_submit(PoolStatOp *op);
+public:
+ void handle_get_pool_stats_reply(MGetPoolStatsReply *m);
+ void get_pool_stats(const std::vector<std::string>& pools,
+ decltype(PoolStatOp::onfinish)&& onfinish);
+ template<typename CompletionToken>
+ auto get_pool_stats(const std::vector<std::string>& pools,
+ CompletionToken&& token) {
+ boost::asio::async_completion<CompletionToken,
+ PoolStatOp::OpSig> init(token);
+ get_pool_stats(pools,
+ PoolStatOp::OpComp::create(
+ service.get_executor(),
+ std::move(init.completion_handler)));
+ return init.result.get();
+ }
+ int pool_stat_op_cancel(ceph_tid_t tid, int r);
+ void _finish_pool_stat_op(PoolStatOp *op, int r);
+
+ // ---------------------------
+ // df stats
+private:
+ void _fs_stats_submit(StatfsOp *op);
+public:
+ void handle_fs_stats_reply(MStatfsReply *m);
+ void get_fs_stats(std::optional<int64_t> poolid,
+ decltype(StatfsOp::onfinish)&& onfinish);
+ template<typename CompletionToken>
+ auto get_fs_stats(std::optional<int64_t> poolid,
+ CompletionToken&& token) {
+ boost::asio::async_completion<CompletionToken, StatfsOp::OpSig> init(token);
+ get_fs_stats(poolid,
+ StatfsOp::OpComp::create(service.get_executor(),
+ std::move(init.completion_handler)));
+ return init.result.get();
+ }
+ void get_fs_stats(struct ceph_statfs& result, std::optional<int64_t> poolid,
+ Context *onfinish) {
+ get_fs_stats(poolid, OpContextVert(onfinish, result));
+ }
+ int statfs_op_cancel(ceph_tid_t tid, int r);
+ void _finish_statfs_op(StatfsOp *op, int r);
+
+ // ---------------------------
+ // some scatter/gather hackery
+
+ void _sg_read_finish(std::vector<ObjectExtent>& extents,
+ std::vector<ceph::buffer::list>& resultbl,
+ ceph::buffer::list *bl, Context *onfinish);
+
+ struct C_SGRead : public Context {
+ Objecter *objecter;
+ std::vector<ObjectExtent> extents;
+ std::vector<ceph::buffer::list> resultbl;
+ ceph::buffer::list *bl;
+ Context *onfinish;
+ C_SGRead(Objecter *ob,
+ std::vector<ObjectExtent>& e, std::vector<ceph::buffer::list>& r, ceph::buffer::list *b,
+ Context *c) :
+ objecter(ob), bl(b), onfinish(c) {
+ extents.swap(e);
+ resultbl.swap(r);
+ }
+ void finish(int r) override {
+ objecter->_sg_read_finish(extents, resultbl, bl, onfinish);
+ }
+ };
+
+ void sg_read_trunc(std::vector<ObjectExtent>& extents, snapid_t snap,
+ ceph::buffer::list *bl, int flags, uint64_t trunc_size,
+ __u32 trunc_seq, Context *onfinish, int op_flags = 0) {
+ if (extents.size() == 1) {
+ read_trunc(extents[0].oid, extents[0].oloc, extents[0].offset,
+ extents[0].length, snap, bl, flags, extents[0].truncate_size,
+ trunc_seq, onfinish, 0, 0, op_flags);
+ } else {
+ C_GatherBuilder gather(cct);
+ std::vector<ceph::buffer::list> resultbl(extents.size());
+ int i=0;
+ for (auto p = extents.begin(); p != extents.end(); ++p) {
+ read_trunc(p->oid, p->oloc, p->offset, p->length, snap, &resultbl[i++],
+ flags, p->truncate_size, trunc_seq, gather.new_sub(),
+ 0, 0, op_flags);
+ }
+ gather.set_finisher(new C_SGRead(this, extents, resultbl, bl, onfinish));
+ gather.activate();
+ }
+ }
+
+ void sg_read(std::vector<ObjectExtent>& extents, snapid_t snap, ceph::buffer::list *bl,
+ int flags, Context *onfinish, int op_flags = 0) {
+ sg_read_trunc(extents, snap, bl, flags, 0, 0, onfinish, op_flags);
+ }
+
+ void sg_write_trunc(std::vector<ObjectExtent>& extents, const SnapContext& snapc,
+ const ceph::buffer::list& bl, ceph::real_time mtime, int flags,
+ uint64_t trunc_size, __u32 trunc_seq,
+ Context *oncommit, int op_flags = 0) {
+ if (extents.size() == 1) {
+ write_trunc(extents[0].oid, extents[0].oloc, extents[0].offset,
+ extents[0].length, snapc, bl, mtime, flags,
+ extents[0].truncate_size, trunc_seq, oncommit,
+ 0, 0, op_flags);
+ } else {
+ C_GatherBuilder gcom(cct, oncommit);
+ auto it = bl.cbegin();
+ for (auto p = extents.begin(); p != extents.end(); ++p) {
+ ceph::buffer::list cur;
+ for (auto bit = p->buffer_extents.begin();
+ bit != p->buffer_extents.end();
+ ++bit) {
+ if (it.get_off() != bit->first) {
+ it.seek(bit->first);
+ }
+ it.copy(bit->second, cur);
+ }
+ ceph_assert(cur.length() == p->length);
+ write_trunc(p->oid, p->oloc, p->offset, p->length,
+ snapc, cur, mtime, flags, p->truncate_size, trunc_seq,
+ oncommit ? gcom.new_sub():0,
+ 0, 0, op_flags);
+ }
+ gcom.activate();
+ }
+ }
+
+ void sg_write(std::vector<ObjectExtent>& extents, const SnapContext& snapc,
+ const ceph::buffer::list& bl, ceph::real_time mtime, int flags,
+ Context *oncommit, int op_flags = 0) {
+ sg_write_trunc(extents, snapc, bl, mtime, flags, 0, 0, oncommit,
+ op_flags);
+ }
+
+ void ms_handle_connect(Connection *con) override;
+ bool ms_handle_reset(Connection *con) override;
+ void ms_handle_remote_reset(Connection *con) override;
+ bool ms_handle_refused(Connection *con) override;
+
+ void blocklist_self(bool set);
+
+private:
+ epoch_t epoch_barrier = 0;
+ bool retry_writes_after_first_reply =
+ cct->_conf->objecter_retry_writes_after_first_reply;
+
+public:
+ void set_epoch_barrier(epoch_t epoch);
+
+ PerfCounters *get_logger() {
+ return logger;
+ }
+};
+
+#endif
diff --git a/src/osdc/Striper.cc b/src/osdc/Striper.cc
new file mode 100644
index 000000000..6f162e901
--- /dev/null
+++ b/src/osdc/Striper.cc
@@ -0,0 +1,537 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2012 Inktank
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+#include "Striper.h"
+
+#include "include/types.h"
+#include "include/buffer.h"
+#include "osd/OSDMap.h"
+
+#include "common/config.h"
+#include "common/debug.h"
+
+#define dout_subsys ceph_subsys_striper
+#undef dout_prefix
+#define dout_prefix *_dout << "striper "
+
+using std::make_pair;
+using std::map;
+using std::pair;
+
+using ceph::bufferlist;
+
+namespace {
+
+object_t format_oid(const char* object_format, uint64_t object_no) {
+ char buf[strlen(object_format) + 32];
+ snprintf(buf, sizeof(buf), object_format, (long long unsigned)object_no);
+ return object_t(buf);
+}
+
+struct OrderByObject {
+ constexpr bool operator()(uint64_t object_no,
+ const striper::LightweightObjectExtent& rhs) const {
+ return object_no < rhs.object_no;
+ }
+ constexpr bool operator()(const striper::LightweightObjectExtent& lhs,
+ uint64_t object_no) const {
+ return lhs.object_no < object_no;
+ }
+};
+
+template <typename I>
+void add_partial_sparse_result(
+ CephContext *cct,
+ std::map<uint64_t, std::pair<ceph::buffer::list, uint64_t> >* partial,
+ uint64_t* total_intended_len, bufferlist& bl, I* it, const I& end_it,
+ uint64_t* bl_off, uint64_t tofs, uint64_t tlen) {
+ ldout(cct, 30) << " be " << tofs << "~" << tlen << dendl;
+
+ auto& s = *it;
+ while (tlen > 0) {
+ ldout(cct, 20) << " t " << tofs << "~" << tlen
+ << " bl has " << bl.length()
+ << " off " << *bl_off << dendl;
+ if (s == end_it) {
+ ldout(cct, 20) << " s at end" << dendl;
+ auto& r = (*partial)[tofs];
+ r.second = tlen;
+ *total_intended_len += r.second;
+ break;
+ }
+
+ ldout(cct, 30) << " s " << s->first << "~" << s->second << dendl;
+
+ // skip zero-length extent
+ if (s->second == 0) {
+ ldout(cct, 30) << " s len 0, skipping" << dendl;
+ ++s;
+ continue;
+ }
+
+ if (s->first > *bl_off) {
+ // gap in sparse read result
+ pair<bufferlist, uint64_t>& r = (*partial)[tofs];
+ size_t gap = std::min<size_t>(s->first - *bl_off, tlen);
+ ldout(cct, 20) << " s gap " << gap << ", skipping" << dendl;
+ r.second = gap;
+ *total_intended_len += r.second;
+ *bl_off += gap;
+ tofs += gap;
+ tlen -= gap;
+ if (tlen == 0) {
+ continue;
+ }
+ }
+
+ ceph_assert(s->first <= *bl_off);
+ size_t left = (s->first + s->second) - *bl_off;
+ size_t actual = std::min<size_t>(left, tlen);
+
+ if (actual > 0) {
+ ldout(cct, 20) << " s has " << actual << ", copying" << dendl;
+ pair<bufferlist, uint64_t>& r = (*partial)[tofs];
+ bl.splice(0, actual, &r.first);
+ r.second = actual;
+ *total_intended_len += r.second;
+ *bl_off += actual;
+ tofs += actual;
+ tlen -= actual;
+ }
+ if (actual == left) {
+ ldout(cct, 30) << " s advancing" << dendl;
+ ++s;
+ }
+ }
+}
+
+} // anonymous namespace
+
+void Striper::file_to_extents(CephContext *cct, const char *object_format,
+ const file_layout_t *layout,
+ uint64_t offset, uint64_t len,
+ uint64_t trunc_size,
+ std::vector<ObjectExtent>& extents,
+ uint64_t buffer_offset)
+{
+ striper::LightweightObjectExtents lightweight_object_extents;
+ file_to_extents(cct, layout, offset, len, trunc_size, buffer_offset,
+ &lightweight_object_extents);
+
+ // convert lightweight object extents to heavyweight version
+ extents.reserve(lightweight_object_extents.size());
+ for (auto& lightweight_object_extent : lightweight_object_extents) {
+ auto& object_extent = extents.emplace_back(
+ object_t(format_oid(object_format, lightweight_object_extent.object_no)),
+ lightweight_object_extent.object_no,
+ lightweight_object_extent.offset, lightweight_object_extent.length,
+ lightweight_object_extent.truncate_size);
+
+ object_extent.oloc = OSDMap::file_to_object_locator(*layout);
+ object_extent.buffer_extents.reserve(
+ lightweight_object_extent.buffer_extents.size());
+ object_extent.buffer_extents.insert(
+ object_extent.buffer_extents.end(),
+ lightweight_object_extent.buffer_extents.begin(),
+ lightweight_object_extent.buffer_extents.end());
+ }
+}
+
+void Striper::file_to_extents(
+ CephContext *cct, const char *object_format,
+ const file_layout_t *layout,
+ uint64_t offset, uint64_t len,
+ uint64_t trunc_size,
+ map<object_t,std::vector<ObjectExtent> >& object_extents,
+ uint64_t buffer_offset)
+{
+ striper::LightweightObjectExtents lightweight_object_extents;
+ file_to_extents(cct, layout, offset, len, trunc_size, buffer_offset,
+ &lightweight_object_extents);
+
+ // convert lightweight object extents to heavyweight version
+ for (auto& lightweight_object_extent : lightweight_object_extents) {
+ auto oid = format_oid(object_format, lightweight_object_extent.object_no);
+ auto& object_extent = object_extents[oid].emplace_back(
+ oid, lightweight_object_extent.object_no,
+ lightweight_object_extent.offset, lightweight_object_extent.length,
+ lightweight_object_extent.truncate_size);
+
+ object_extent.oloc = OSDMap::file_to_object_locator(*layout);
+ object_extent.buffer_extents.reserve(
+ lightweight_object_extent.buffer_extents.size());
+ object_extent.buffer_extents.insert(
+ object_extent.buffer_extents.end(),
+ lightweight_object_extent.buffer_extents.begin(),
+ lightweight_object_extent.buffer_extents.end());
+ }
+}
+
+void Striper::file_to_extents(
+ CephContext *cct, const file_layout_t *layout, uint64_t offset,
+ uint64_t len, uint64_t trunc_size, uint64_t buffer_offset,
+ striper::LightweightObjectExtents* object_extents) {
+ ldout(cct, 10) << "file_to_extents " << offset << "~" << len << dendl;
+ ceph_assert(len > 0);
+
+ /*
+ * we want only one extent per object! this means that each extent
+ * we read may map into different bits of the final read
+ * buffer.. hence buffer_extents
+ */
+
+ __u32 object_size = layout->object_size;
+ __u32 su = layout->stripe_unit;
+ __u32 stripe_count = layout->stripe_count;
+ ceph_assert(object_size >= su);
+ if (stripe_count == 1) {
+ ldout(cct, 20) << " sc is one, reset su to os" << dendl;
+ su = object_size;
+ }
+ uint64_t stripes_per_object = object_size / su;
+ ldout(cct, 20) << " su " << su << " sc " << stripe_count << " os "
+ << object_size << " stripes_per_object " << stripes_per_object
+ << dendl;
+
+ uint64_t cur = offset;
+ uint64_t left = len;
+ while (left > 0) {
+ // layout into objects
+ uint64_t blockno = cur / su; // which block
+ // which horizontal stripe (Y)
+ uint64_t stripeno = blockno / stripe_count;
+ // which object in the object set (X)
+ uint64_t stripepos = blockno % stripe_count;
+ // which object set
+ uint64_t objectsetno = stripeno / stripes_per_object;
+ // object id
+ uint64_t objectno = objectsetno * stripe_count + stripepos;
+
+ // map range into object
+ uint64_t block_start = (stripeno % stripes_per_object) * su;
+ uint64_t block_off = cur % su;
+ uint64_t max = su - block_off;
+
+ uint64_t x_offset = block_start + block_off;
+ uint64_t x_len;
+ if (left > max)
+ x_len = max;
+ else
+ x_len = left;
+
+ ldout(cct, 20) << " off " << cur << " blockno " << blockno << " stripeno "
+ << stripeno << " stripepos " << stripepos << " objectsetno "
+ << objectsetno << " objectno " << objectno
+ << " block_start " << block_start << " block_off "
+ << block_off << " " << x_offset << "~" << x_len
+ << dendl;
+
+ striper::LightweightObjectExtent* ex = nullptr;
+ auto it = std::upper_bound(object_extents->begin(), object_extents->end(),
+ objectno, OrderByObject());
+ striper::LightweightObjectExtents::reverse_iterator rev_it(it);
+ if (rev_it == object_extents->rend() ||
+ rev_it->object_no != objectno ||
+ rev_it->offset + rev_it->length != x_offset) {
+ // expect up to "stripe-width - 1" vector shifts in the worst-case
+ ex = &(*object_extents->emplace(
+ it, objectno, x_offset, x_len,
+ object_truncate_size(cct, layout, objectno, trunc_size)));
+ ldout(cct, 20) << " added new " << *ex << dendl;
+ } else {
+ ex = &(*rev_it);
+ ceph_assert(ex->offset + ex->length == x_offset);
+
+ ldout(cct, 20) << " adding in to " << *ex << dendl;
+ ex->length += x_len;
+ }
+
+ ex->buffer_extents.emplace_back(cur - offset + buffer_offset, x_len);
+
+ ldout(cct, 15) << "file_to_extents " << *ex << dendl;
+ // ldout(cct, 0) << "map: ino " << ino << " oid " << ex.oid << " osd "
+ // << ex.osd << " offset " << ex.offset << " len " << ex.len
+ // << " ... left " << left << dendl;
+
+ left -= x_len;
+ cur += x_len;
+ }
+}
+
+void Striper::extent_to_file(CephContext *cct, file_layout_t *layout,
+ uint64_t objectno, uint64_t off, uint64_t len,
+ std::vector<pair<uint64_t, uint64_t> >& extents)
+{
+ ldout(cct, 10) << "extent_to_file " << objectno << " " << off << "~"
+ << len << dendl;
+
+ __u32 object_size = layout->object_size;
+ __u32 su = layout->stripe_unit;
+ __u32 stripe_count = layout->stripe_count;
+ ceph_assert(object_size >= su);
+ uint64_t stripes_per_object = object_size / su;
+ ldout(cct, 20) << " stripes_per_object " << stripes_per_object << dendl;
+
+ uint64_t off_in_block = off % su;
+
+ extents.reserve(len / su + 1);
+
+ while (len > 0) {
+ uint64_t stripepos = objectno % stripe_count;
+ uint64_t objectsetno = objectno / stripe_count;
+ uint64_t stripeno = off / su + objectsetno * stripes_per_object;
+ uint64_t blockno = stripeno * stripe_count + stripepos;
+ uint64_t extent_off = blockno * su + off_in_block;
+ uint64_t extent_len = std::min(len, su - off_in_block);
+ extents.push_back(make_pair(extent_off, extent_len));
+
+ ldout(cct, 20) << " object " << off << "~" << extent_len
+ << " -> file " << extent_off << "~" << extent_len
+ << dendl;
+
+ off_in_block = 0;
+ off += extent_len;
+ len -= extent_len;
+ }
+}
+
+uint64_t Striper::object_truncate_size(CephContext *cct,
+ const file_layout_t *layout,
+ uint64_t objectno, uint64_t trunc_size)
+{
+ uint64_t obj_trunc_size;
+ if (trunc_size == 0 || trunc_size == (uint64_t)-1) {
+ obj_trunc_size = trunc_size;
+ } else {
+ __u32 object_size = layout->object_size;
+ __u32 su = layout->stripe_unit;
+ __u32 stripe_count = layout->stripe_count;
+ ceph_assert(object_size >= su);
+ uint64_t stripes_per_object = object_size / su;
+
+ uint64_t objectsetno = objectno / stripe_count;
+ uint64_t trunc_objectsetno = trunc_size / object_size / stripe_count;
+ if (objectsetno > trunc_objectsetno)
+ obj_trunc_size = 0;
+ else if (objectsetno < trunc_objectsetno)
+ obj_trunc_size = object_size;
+ else {
+ uint64_t trunc_blockno = trunc_size / su;
+ uint64_t trunc_stripeno = trunc_blockno / stripe_count;
+ uint64_t trunc_stripepos = trunc_blockno % stripe_count;
+ uint64_t trunc_objectno = trunc_objectsetno * stripe_count
+ + trunc_stripepos;
+ if (objectno < trunc_objectno)
+ obj_trunc_size = ((trunc_stripeno % stripes_per_object) + 1) * su;
+ else if (objectno > trunc_objectno)
+ obj_trunc_size = (trunc_stripeno % stripes_per_object) * su;
+ else
+ obj_trunc_size = (trunc_stripeno % stripes_per_object) * su
+ + (trunc_size % su);
+ }
+ }
+ ldout(cct, 20) << "object_truncate_size " << objectno << " "
+ << trunc_size << "->" << obj_trunc_size << dendl;
+ return obj_trunc_size;
+}
+
+uint64_t Striper::get_num_objects(const file_layout_t& layout,
+ uint64_t size)
+{
+ __u32 stripe_unit = layout.stripe_unit;
+ __u32 stripe_count = layout.stripe_count;
+ uint64_t period = layout.get_period();
+ uint64_t num_periods = (size + period - 1) / period;
+ uint64_t remainder_bytes = size % period;
+ uint64_t remainder_objs = 0;
+ if ((remainder_bytes > 0) && (remainder_bytes < (uint64_t)stripe_count
+ * stripe_unit))
+ remainder_objs = stripe_count - ((remainder_bytes + stripe_unit - 1)
+ / stripe_unit);
+ return num_periods * stripe_count - remainder_objs;
+}
+
+uint64_t Striper::get_file_offset(CephContext *cct,
+ const file_layout_t *layout, uint64_t objectno, uint64_t off) {
+ ldout(cct, 10) << "get_file_offset " << objectno << " " << off << dendl;
+
+ __u32 object_size = layout->object_size;
+ __u32 su = layout->stripe_unit;
+ __u32 stripe_count = layout->stripe_count;
+ ceph_assert(object_size >= su);
+ uint64_t stripes_per_object = object_size / su;
+ ldout(cct, 20) << " stripes_per_object " << stripes_per_object << dendl;
+
+ uint64_t off_in_block = off % su;
+
+ uint64_t stripepos = objectno % stripe_count;
+ uint64_t objectsetno = objectno / stripe_count;
+ uint64_t stripeno = off / su + objectsetno * stripes_per_object;
+ uint64_t blockno = stripeno * stripe_count + stripepos;
+ return blockno * su + off_in_block;
+}
+
+// StripedReadResult
+
+void Striper::StripedReadResult::add_partial_result(
+ CephContext *cct, bufferlist& bl,
+ const std::vector<pair<uint64_t,uint64_t> >& buffer_extents)
+{
+ ldout(cct, 10) << "add_partial_result(" << this << ") " << bl.length()
+ << " to " << buffer_extents << dendl;
+ for (auto p = buffer_extents.cbegin(); p != buffer_extents.cend(); ++p) {
+ pair<bufferlist, uint64_t>& r = partial[p->first];
+ size_t actual = std::min<uint64_t>(bl.length(), p->second);
+ bl.splice(0, actual, &r.first);
+ r.second = p->second;
+ total_intended_len += r.second;
+ }
+}
+
+void Striper::StripedReadResult::add_partial_result(
+ CephContext *cct, bufferlist&& bl,
+ const striper::LightweightBufferExtents& buffer_extents)
+{
+ ldout(cct, 10) << "add_partial_result(" << this << ") " << bl.length()
+ << " to " << buffer_extents << dendl;
+ for (auto& be : buffer_extents) {
+ auto& r = partial[be.first];
+ size_t actual = std::min<uint64_t>(bl.length(), be.second);
+ if (buffer_extents.size() == 1) {
+ r.first = std::move(bl);
+ } else {
+ bl.splice(0, actual, &r.first);
+ }
+ r.second = be.second;
+ total_intended_len += r.second;
+ }
+}
+
+void Striper::StripedReadResult::add_partial_sparse_result(
+ CephContext *cct, bufferlist& bl, const map<uint64_t, uint64_t>& bl_map,
+ uint64_t bl_off, const std::vector<pair<uint64_t,uint64_t> >& buffer_extents)
+{
+ ldout(cct, 10) << "add_partial_sparse_result(" << this << ") " << bl.length()
+ << " covering " << bl_map << " (offset " << bl_off << ")"
+ << " to " << buffer_extents << dendl;
+
+ if (bl_map.empty()) {
+ add_partial_result(cct, bl, buffer_extents);
+ return;
+ }
+
+ auto s = bl_map.cbegin();
+ for (auto& be : buffer_extents) {
+ ::add_partial_sparse_result(cct, &partial, &total_intended_len, bl, &s,
+ bl_map.end(), &bl_off, be.first, be.second);
+ }
+}
+
+void Striper::StripedReadResult::add_partial_sparse_result(
+ CephContext *cct, ceph::buffer::list&& bl,
+ const std::vector<std::pair<uint64_t, uint64_t>>& bl_map, uint64_t bl_off,
+ const striper::LightweightBufferExtents& buffer_extents) {
+ ldout(cct, 10) << "add_partial_sparse_result(" << this << ") " << bl.length()
+ << " covering " << bl_map << " (offset " << bl_off << ")"
+ << " to " << buffer_extents << dendl;
+
+ if (bl_map.empty()) {
+ add_partial_result(cct, std::move(bl), buffer_extents);
+ return;
+ }
+
+ auto s = bl_map.cbegin();
+ for (auto& be : buffer_extents) {
+ ::add_partial_sparse_result(cct, &partial, &total_intended_len, bl, &s,
+ bl_map.cend(), &bl_off, be.first, be.second);
+ }
+}
+
+void Striper::StripedReadResult::assemble_result(CephContext *cct,
+ bufferlist& bl,
+ bool zero_tail)
+{
+ ldout(cct, 10) << "assemble_result(" << this << ") zero_tail=" << zero_tail
+ << dendl;
+ size_t zeros = 0; // zeros preceding current position
+ for (auto& p : partial) {
+ size_t got = p.second.first.length();
+ size_t expect = p.second.second;
+ if (got) {
+ if (zeros) {
+ bl.append_zero(zeros);
+ zeros = 0;
+ }
+ bl.claim_append(p.second.first);
+ }
+ zeros += expect - got;
+ }
+ if (zero_tail && zeros) {
+ bl.append_zero(zeros);
+ }
+ partial.clear();
+}
+
+void Striper::StripedReadResult::assemble_result(CephContext *cct, char *buffer, size_t length)
+{
+
+ ceph_assert(buffer && length == total_intended_len);
+
+ map<uint64_t,pair<bufferlist,uint64_t> >::reverse_iterator p = partial.rbegin();
+ if (p == partial.rend())
+ return;
+
+ uint64_t curr = length;
+ uint64_t end = p->first + p->second.second;
+ while (p != partial.rend()) {
+ // sanity check
+ ldout(cct, 20) << "assemble_result(" << this << ") " << p->first << "~" << p->second.second
+ << " " << p->second.first.length() << " bytes"
+ << dendl;
+ ceph_assert(p->first == end - p->second.second);
+ end = p->first;
+
+ size_t len = p->second.first.length();
+ ceph_assert(curr >= p->second.second);
+ curr -= p->second.second;
+ if (len < p->second.second) {
+ if (len)
+ p->second.first.begin().copy(len, buffer + curr);
+ // FIPS zeroization audit 20191117: this memset is not security related.
+ memset(buffer + curr + len, 0, p->second.second - len);
+ } else {
+ p->second.first.begin().copy(len, buffer + curr);
+ }
+ ++p;
+ }
+ partial.clear();
+ ceph_assert(curr == 0);
+}
+
+uint64_t Striper::StripedReadResult::assemble_result(
+ CephContext *cct, std::map<uint64_t, uint64_t> *extent_map,
+ bufferlist *bl)
+{
+ ldout(cct, 10) << "assemble_result(" << this << ")" << dendl;
+ for (auto& p : partial) {
+ uint64_t off = p.first;
+ uint64_t len = p.second.first.length();
+ if (len > 0) {
+ (*extent_map)[off] = len;
+ bl->claim_append(p.second.first);
+ }
+ }
+ partial.clear();
+ return total_intended_len;
+}
diff --git a/src/osdc/Striper.h b/src/osdc/Striper.h
new file mode 100644
index 000000000..0761cd6c7
--- /dev/null
+++ b/src/osdc/Striper.h
@@ -0,0 +1,132 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+#ifndef CEPH_STRIPER_H
+#define CEPH_STRIPER_H
+
+#include "include/common_fwd.h"
+#include "include/types.h"
+#include "osd/osd_types.h"
+#include "osdc/StriperTypes.h"
+
+
+//namespace ceph {
+
+ class Striper {
+ public:
+ static void file_to_extents(
+ CephContext *cct, const file_layout_t *layout, uint64_t offset,
+ uint64_t len, uint64_t trunc_size, uint64_t buffer_offset,
+ striper::LightweightObjectExtents* object_extents);
+
+ /*
+ * std::map (ino, layout, offset, len) to a (list of) ObjectExtents (byte
+ * ranges in objects on (primary) osds)
+ */
+ static void file_to_extents(CephContext *cct, const char *object_format,
+ const file_layout_t *layout,
+ uint64_t offset, uint64_t len,
+ uint64_t trunc_size,
+ std::map<object_t, std::vector<ObjectExtent> >& extents,
+ uint64_t buffer_offset=0);
+
+ static void file_to_extents(CephContext *cct, const char *object_format,
+ const file_layout_t *layout,
+ uint64_t offset, uint64_t len,
+ uint64_t trunc_size,
+ std::vector<ObjectExtent>& extents,
+ uint64_t buffer_offset=0);
+
+ static void file_to_extents(CephContext *cct, inodeno_t ino,
+ const file_layout_t *layout,
+ uint64_t offset, uint64_t len,
+ uint64_t trunc_size,
+ std::vector<ObjectExtent>& extents) {
+ // generate prefix/format
+ char buf[32];
+ snprintf(buf, sizeof(buf), "%llx.%%08llx", (long long unsigned)ino);
+
+ file_to_extents(cct, buf, layout, offset, len, trunc_size, extents);
+ }
+
+ /**
+ * reverse std::map an object extent to file extents
+ */
+ static void extent_to_file(CephContext *cct, file_layout_t *layout,
+ uint64_t objectno, uint64_t off, uint64_t len,
+ std::vector<std::pair<uint64_t, uint64_t> >& extents);
+
+ static uint64_t object_truncate_size(
+ CephContext *cct, const file_layout_t *layout,
+ uint64_t objectno, uint64_t trunc_size);
+
+ static uint64_t get_num_objects(const file_layout_t& layout,
+ uint64_t size);
+
+ static uint64_t get_file_offset(CephContext *cct,
+ const file_layout_t *layout, uint64_t objectno, uint64_t off);
+ /*
+ * helper to assemble a striped result
+ */
+ class StripedReadResult {
+ // offset -> (data, intended length)
+ std::map<uint64_t, std::pair<ceph::buffer::list, uint64_t> > partial;
+ uint64_t total_intended_len = 0; //sum of partial.second.second
+
+ public:
+ void add_partial_result(
+ CephContext *cct, ceph::buffer::list& bl,
+ const std::vector<std::pair<uint64_t,uint64_t> >& buffer_extents);
+ void add_partial_result(
+ CephContext *cct, ceph::buffer::list&& bl,
+ const striper::LightweightBufferExtents& buffer_extents);
+
+ /**
+ * add sparse read into results
+ *
+ * @param bl buffer
+ * @param bl_map std::map of which logical source extents this covers
+ * @param bl_off logical buffer offset (e.g., first bl_map key
+ * if the buffer is not sparse)
+ * @param buffer_extents output buffer extents the data maps to
+ */
+ void add_partial_sparse_result(
+ CephContext *cct, ceph::buffer::list& bl,
+ const std::map<uint64_t, uint64_t>& bl_map, uint64_t bl_off,
+ const std::vector<std::pair<uint64_t,uint64_t> >& buffer_extents);
+ void add_partial_sparse_result(
+ CephContext *cct, ceph::buffer::list&& bl,
+ const std::vector<std::pair<uint64_t, uint64_t>>& bl_map,
+ uint64_t bl_off,
+ const striper::LightweightBufferExtents& buffer_extents);
+
+ void assemble_result(CephContext *cct, ceph::buffer::list& bl,
+ bool zero_tail);
+
+ /**
+ * @buffer copy read data into buffer
+ * @len the length of buffer
+ */
+ void assemble_result(CephContext *cct, char *buffer, size_t len);
+
+ uint64_t assemble_result(CephContext *cct,
+ std::map<uint64_t, uint64_t> *extent_map,
+ ceph::buffer::list *bl);
+ };
+
+ };
+
+//};
+
+#endif
diff --git a/src/osdc/StriperTypes.h b/src/osdc/StriperTypes.h
new file mode 100644
index 000000000..2ce8466a8
--- /dev/null
+++ b/src/osdc/StriperTypes.h
@@ -0,0 +1,48 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_OSDC_STRIPER_TYPES_H
+#define CEPH_OSDC_STRIPER_TYPES_H
+
+#include "include/types.h"
+#include <boost/container/small_vector.hpp>
+#include <ios>
+#include <utility>
+
+namespace striper {
+
+// off -> len extents in (striped) buffer being mapped
+typedef std::pair<uint64_t,uint64_t> BufferExtent;
+typedef boost::container::small_vector<
+ BufferExtent, 4> LightweightBufferExtents;
+
+struct LightweightObjectExtent {
+ LightweightObjectExtent() = delete;
+ LightweightObjectExtent(uint64_t object_no, uint64_t offset,
+ uint64_t length, uint64_t truncate_size)
+ : object_no(object_no), offset(offset), length(length),
+ truncate_size(truncate_size) {
+ }
+
+ uint64_t object_no;
+ uint64_t offset; // in-object
+ uint64_t length; // in-object
+ uint64_t truncate_size; // in-object
+ LightweightBufferExtents buffer_extents;
+};
+
+typedef boost::container::small_vector<
+ LightweightObjectExtent, 4> LightweightObjectExtents;
+
+inline std::ostream& operator<<(std::ostream& os,
+ const LightweightObjectExtent& ex) {
+ return os << "extent("
+ << ex.object_no << " "
+ << ex.offset << "~" << ex.length
+ << " -> " << ex.buffer_extents
+ << ")";
+}
+
+} // namespace striper
+
+#endif // CEPH_OSDC_STRIPER_TYPES_H
diff --git a/src/osdc/WritebackHandler.h b/src/osdc/WritebackHandler.h
new file mode 100644
index 000000000..4f4e9aef8
--- /dev/null
+++ b/src/osdc/WritebackHandler.h
@@ -0,0 +1,57 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+#ifndef CEPH_OSDC_WRITEBACKHANDLER_H
+#define CEPH_OSDC_WRITEBACKHANDLER_H
+
+#include "include/Context.h"
+#include "include/types.h"
+#include "common/zipkin_trace.h"
+#include "osd/osd_types.h"
+
+class WritebackHandler {
+ public:
+ WritebackHandler() {}
+ virtual ~WritebackHandler() {}
+
+ virtual void read(const object_t& oid, uint64_t object_no,
+ const object_locator_t& oloc, uint64_t off, uint64_t len,
+ snapid_t snapid, ceph::buffer::list *pbl, uint64_t trunc_size,
+ __u32 trunc_seq, int op_flags,
+ const ZTracer::Trace &parent_trace, Context *onfinish) = 0;
+ /**
+ * check if a given extent read result may change due to a write
+ *
+ * Check if the content we see at the given read offset may change
+ * due to a write to this object.
+ *
+ * @param oid object
+ * @param read_off read offset
+ * @param read_len read length
+ * @param snapid read snapid
+ */
+ virtual bool may_copy_on_write(const object_t& oid, uint64_t read_off,
+ uint64_t read_len, snapid_t snapid) = 0;
+ virtual ceph_tid_t write(const object_t& oid, const object_locator_t& oloc,
+ uint64_t off, uint64_t len,
+ const SnapContext& snapc,
+ const ceph::buffer::list &bl, ceph::real_time mtime,
+ uint64_t trunc_size, __u32 trunc_seq,
+ ceph_tid_t journal_tid,
+ const ZTracer::Trace &parent_trace,
+ Context *oncommit) = 0;
+
+ virtual void overwrite_extent(const object_t& oid, uint64_t off, uint64_t len,
+ ceph_tid_t original_journal_tid,
+ ceph_tid_t new_journal_tid) {}
+
+ virtual bool can_scattered_write() { return false; }
+ virtual ceph_tid_t write(const object_t& oid, const object_locator_t& oloc,
+ std::vector<std::pair<uint64_t, ceph::buffer::list> >& io_vec,
+ const SnapContext& snapc, ceph::real_time mtime,
+ uint64_t trunc_size, __u32 trunc_seq,
+ Context *oncommit) {
+ return 0;
+ }
+};
+
+#endif
diff --git a/src/osdc/error_code.cc b/src/osdc/error_code.cc
new file mode 100644
index 000000000..7823e8b08
--- /dev/null
+++ b/src/osdc/error_code.cc
@@ -0,0 +1,166 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2019 Red Hat <contact@redhat.com>
+ * Author: Adam C. Emerson <aemerson@redhat.com>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+#include <string>
+
+#include "common/error_code.h"
+#include "error_code.h"
+
+namespace bs = boost::system;
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wnon-virtual-dtor"
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wnon-virtual-dtor"
+class osdc_error_category : public ceph::converting_category {
+public:
+ osdc_error_category(){}
+ const char* name() const noexcept override;
+ const char* message(int ev, char*, std::size_t) const noexcept override;
+ std::string message(int ev) const override;
+ bs::error_condition default_error_condition(int ev) const noexcept
+ override;
+ bool equivalent(int ev, const bs::error_condition& c) const
+ noexcept override;
+ using ceph::converting_category::equivalent;
+ int from_code(int ev) const noexcept override;
+};
+#pragma GCC diagnostic pop
+#pragma clang diagnostic pop
+
+const char* osdc_error_category::name() const noexcept {
+ return "osdc";
+}
+
+const char* osdc_error_category::message(int ev, char*,
+ std::size_t) const noexcept {
+ if (ev == 0)
+ return "No error";
+
+ switch (static_cast<osdc_errc>(ev)) {
+ case osdc_errc::pool_dne:
+ return "Pool does not exist";
+
+ case osdc_errc::pool_exists:
+ return "Pool already exists";
+
+ case osdc_errc::precondition_violated:
+ return "Precondition for operation not satisfied";
+
+ case osdc_errc::not_supported:
+ return "Operation not supported";
+
+ case osdc_errc::snapshot_exists:
+ return "Snapshot already exists";
+
+ case osdc_errc::snapshot_dne:
+ return "Snapshot does not exist";
+
+ case osdc_errc::timed_out:
+ return "Operation timed out";
+
+ case osdc_errc::pool_eio:
+ return "Pool EIO flag set";
+ }
+
+ return "Unknown error";
+}
+
+std::string osdc_error_category::message(int ev) const {
+ return message(ev, nullptr, 0);
+}
+
+bs::error_condition
+osdc_error_category::default_error_condition(int ev) const noexcept {
+ switch (static_cast<osdc_errc>(ev)) {
+ case osdc_errc::pool_dne:
+ return ceph::errc::does_not_exist;
+ case osdc_errc::pool_exists:
+ return ceph::errc::exists;
+ case osdc_errc::precondition_violated:
+ return bs::errc::invalid_argument;
+ case osdc_errc::not_supported:
+ return bs::errc::operation_not_supported;
+ case osdc_errc::snapshot_exists:
+ return ceph::errc::exists;
+ case osdc_errc::snapshot_dne:
+ return ceph::errc::does_not_exist;
+ case osdc_errc::timed_out:
+ return bs::errc::timed_out;
+ case osdc_errc::pool_eio:
+ return bs::errc::io_error;
+ }
+
+ return { ev, *this };
+}
+
+bool osdc_error_category::equivalent(int ev,
+ const bs::error_condition& c) const noexcept {
+ if (static_cast<osdc_errc>(ev) == osdc_errc::pool_dne) {
+ if (c == bs::errc::no_such_file_or_directory) {
+ return true;
+ }
+ if (c == ceph::errc::not_in_map) {
+ return true;
+ }
+ }
+ if (static_cast<osdc_errc>(ev) == osdc_errc::pool_exists) {
+ if (c == bs::errc::file_exists) {
+ return true;
+ }
+ }
+ if (static_cast<osdc_errc>(ev) == osdc_errc::snapshot_exists) {
+ if (c == bs::errc::file_exists) {
+ return true;
+ }
+ }
+ if (static_cast<osdc_errc>(ev) == osdc_errc::snapshot_dne) {
+ if (c == bs::errc::no_such_file_or_directory) {
+ return true;
+ }
+ if (c == ceph::errc::not_in_map) {
+ return true;
+ }
+ }
+
+ return default_error_condition(ev) == c;
+}
+
+int osdc_error_category::from_code(int ev) const noexcept {
+ switch (static_cast<osdc_errc>(ev)) {
+ case osdc_errc::pool_dne:
+ return -ENOENT;
+ case osdc_errc::pool_exists:
+ return -EEXIST;
+ case osdc_errc::precondition_violated:
+ return -EINVAL;
+ case osdc_errc::not_supported:
+ return -EOPNOTSUPP;
+ case osdc_errc::snapshot_exists:
+ return -EEXIST;
+ case osdc_errc::snapshot_dne:
+ return -ENOENT;
+ case osdc_errc::timed_out:
+ return -ETIMEDOUT;
+ case osdc_errc::pool_eio:
+ return -EIO;
+ }
+ return -EDOM;
+}
+
+const bs::error_category& osdc_category() noexcept {
+ static const osdc_error_category c;
+ return c;
+}
diff --git a/src/osdc/error_code.h b/src/osdc/error_code.h
new file mode 100644
index 000000000..eb78a5110
--- /dev/null
+++ b/src/osdc/error_code.h
@@ -0,0 +1,56 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2019 Red Hat <contact@redhat.com>
+ * Author: Adam C. Emerson <aemerson@redhat.com>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+#pragma once
+
+#include <boost/system/error_code.hpp>
+
+#include "include/rados.h"
+
+const boost::system::error_category& osdc_category() noexcept;
+
+enum class osdc_errc {
+ pool_dne = 1,
+ pool_exists,
+ // Come the revolution, we'll just kill your program. Maybe.
+ precondition_violated,
+ not_supported,
+ snapshot_exists,
+ snapshot_dne,
+ timed_out,
+ pool_eio
+};
+
+namespace boost::system {
+template<>
+struct is_error_code_enum<::osdc_errc> {
+ static const bool value = true;
+};
+
+template<>
+struct is_error_condition_enum<::osdc_errc> {
+ static const bool value = false;
+};
+}
+
+// implicit conversion:
+inline boost::system::error_code make_error_code(osdc_errc e) noexcept {
+ return { static_cast<int>(e), osdc_category() };
+}
+
+// explicit conversion:
+inline boost::system::error_condition make_error_condition(osdc_errc e) noexcept {
+ return { static_cast<int>(e), osdc_category() };
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-18 13:39:32 +0000