Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 299 insertions, 0 deletions

diff --git a/src/mds/Capability.cc b/src/mds/Capability.cc
new file mode 100644
index 00000000..1ce1803b
--- /dev/null
+++ b/src/mds/Capability.cc
@@ -0,0 +1,299 @@
+// -*- 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 "Capability.h"
+#include "CInode.h"
+#include "SessionMap.h"
+
+#include "common/Formatter.h"
+
+
+/*
+ * Capability::Export
+ */
+
+void Capability::Export::encode(bufferlist &bl) const
+{
+  ENCODE_START(3, 2, bl);
+  encode(cap_id, bl);
+  encode(wanted, bl);
+  encode(issued, bl);
+  encode(pending, bl);
+  encode(client_follows, bl);
+  encode(seq, bl);
+  encode(mseq, bl);
+  encode(last_issue_stamp, bl);
+  encode(state, bl);
+  ENCODE_FINISH(bl);
+}
+
+void Capability::Export::decode(bufferlist::const_iterator &p)
+{
+  DECODE_START_LEGACY_COMPAT_LEN(3, 2, 2, p);
+  decode(cap_id, p);
+  decode(wanted, p);
+  decode(issued, p);
+  decode(pending, p);
+  decode(client_follows, p);
+  decode(seq, p);
+  decode(mseq, p);
+  decode(last_issue_stamp, p);
+  if (struct_v >= 3)
+    decode(state, p);
+  DECODE_FINISH(p);
+}
+
+void Capability::Export::dump(Formatter *f) const
+{
+  f->dump_unsigned("cap_id", cap_id);
+  f->dump_unsigned("wanted", wanted);
+  f->dump_unsigned("issued", issued);
+  f->dump_unsigned("pending", pending);
+  f->dump_unsigned("client_follows", client_follows);
+  f->dump_unsigned("seq", seq);
+  f->dump_unsigned("migrate_seq", mseq);
+  f->dump_stream("last_issue_stamp") << last_issue_stamp;
+}
+
+void Capability::Export::generate_test_instances(list<Capability::Export*>& ls)
+{
+  ls.push_back(new Export);
+  ls.push_back(new Export);
+  ls.back()->wanted = 1;
+  ls.back()->issued = 2;
+  ls.back()->pending = 3;
+  ls.back()->client_follows = 4;
+  ls.back()->mseq = 5;
+  ls.back()->last_issue_stamp = utime_t(6, 7);
+}
+
+void Capability::Import::encode(bufferlist &bl) const
+{
+  ENCODE_START(1, 1, bl);
+  encode(cap_id, bl);
+  encode(issue_seq, bl);
+  encode(mseq, bl);
+  ENCODE_FINISH(bl);
+}
+
+void Capability::Import::decode(bufferlist::const_iterator &bl)
+{
+  DECODE_START(1, bl);
+  decode(cap_id, bl);
+  decode(issue_seq, bl);
+  decode(mseq, bl);
+  DECODE_FINISH(bl);
+}
+
+void Capability::Import::dump(Formatter *f) const
+{
+  f->dump_unsigned("cap_id", cap_id);
+  f->dump_unsigned("issue_seq", issue_seq);
+  f->dump_unsigned("migrate_seq", mseq);
+}
+
+/*
+ * Capability::revoke_info
+ */
+
+void Capability::revoke_info::encode(bufferlist& bl) const
+{
+  ENCODE_START(2, 2, bl)
+  encode(before, bl);
+  encode(seq, bl);
+  encode(last_issue, bl);
+  ENCODE_FINISH(bl);
+}
+
+void Capability::revoke_info::decode(bufferlist::const_iterator& bl)
+{
+  DECODE_START_LEGACY_COMPAT_LEN(2, 2, 2, bl);
+  decode(before, bl);
+  decode(seq, bl);
+  decode(last_issue, bl);
+  DECODE_FINISH(bl);
+}
+
+void Capability::revoke_info::dump(Formatter *f) const
+{
+  f->dump_unsigned("before", before);
+  f->dump_unsigned("seq", seq);
+  f->dump_unsigned("last_issue", last_issue);
+}
+
+void Capability::revoke_info::generate_test_instances(list<Capability::revoke_info*>& ls)
+{
+  ls.push_back(new revoke_info);
+  ls.push_back(new revoke_info);
+  ls.back()->before = 1;
+  ls.back()->seq = 2;
+  ls.back()->last_issue = 3;
+}
+
+
+/*
+ * Capability
+ */
+Capability::Capability(CInode *i, Session *s, uint64_t id) :
+  client_follows(0),
+  client_xattr_version(0), client_inline_version(0),
+  last_rbytes(0), last_rsize(0),
+  item_session_caps(this), item_snaprealm_caps(this),
+  item_revoking_caps(this), item_client_revoking_caps(this),
+  inode(i), session(s),
+  cap_id(id), _wanted(0), num_revoke_warnings(0),
+  _pending(0), _issued(0), last_sent(0), last_issue(0), mseq(0),
+  suppress(0), state(0)
+{
+  if (session) {
+    session->touch_cap_bottom(this);
+    cap_gen = session->get_cap_gen();
+    if (session->is_stale())
+      --cap_gen; // not valid
+
+    auto& conn = session->get_connection();
+    if (conn) {
+      if (!conn->has_feature(CEPH_FEATURE_MDS_INLINE_DATA))
+	state |= STATE_NOINLINE;
+      if (!conn->has_feature(CEPH_FEATURE_FS_FILE_LAYOUT_V2))
+	state |= STATE_NOPOOLNS;
+      if (!conn->has_feature(CEPH_FEATURE_MDS_QUOTA))
+	state |= STATE_NOQUOTA;
+    }
+  }
+}
+
+client_t Capability::get_client() const
+{
+  return session ? session->get_client() : client_t(-1);
+}
+
+bool Capability::is_stale() const
+{
+  return session ? session->is_stale() : false;
+}
+
+bool Capability::is_valid() const
+{
+  return !session || session->get_cap_gen() == cap_gen;
+}
+
+void Capability::revalidate()
+{
+  if (!is_valid())
+    cap_gen = session->get_cap_gen();
+}
+
+void Capability::mark_notable()
+{
+  state |= STATE_NOTABLE;
+  session->touch_cap(this);
+}
+
+void Capability::maybe_clear_notable()
+{
+  if ((_issued == _pending) &&
+      !is_clientwriteable() &&
+      !is_wanted_notable(_wanted)) {
+    ceph_assert(is_notable());
+    state &= ~STATE_NOTABLE;
+    session->touch_cap_bottom(this);
+  }
+}
+
+void Capability::set_wanted(int w) {
+  CInode *in = get_inode();
+  if (in) {
+    if (!_wanted && w) {
+      in->adjust_num_caps_wanted(1);
+    } else if (_wanted && !w) {
+      in->adjust_num_caps_wanted(-1);
+    }
+    if (!is_wanted_notable(_wanted) && is_wanted_notable(w)) {
+      if (!is_notable())
+	mark_notable();
+    } else if (is_wanted_notable(_wanted) && !is_wanted_notable(w)) {
+      maybe_clear_notable();
+    }
+  }
+  _wanted = w;
+}
+
+void Capability::encode(bufferlist& bl) const
+{
+  ENCODE_START(2, 2, bl)
+  encode(last_sent, bl);
+  encode(last_issue_stamp, bl);
+
+  encode(_wanted, bl);
+  encode(_pending, bl);
+  encode(_revokes, bl);
+  ENCODE_FINISH(bl);
+}
+
+void Capability::decode(bufferlist::const_iterator &bl)
+{
+  DECODE_START_LEGACY_COMPAT_LEN(2, 2, 2, bl)
+  decode(last_sent, bl);
+  decode(last_issue_stamp, bl);
+
+  __u32 tmp_wanted;
+  decode(tmp_wanted, bl);
+  set_wanted(tmp_wanted);
+  decode(_pending, bl);
+  decode(_revokes, bl);
+  DECODE_FINISH(bl);
+  
+  calc_issued();
+}
+
+void Capability::dump(Formatter *f) const
+{
+  f->dump_unsigned("last_sent", last_sent);
+  f->dump_unsigned("last_issue_stamp", last_issue_stamp);
+  f->dump_unsigned("wanted", _wanted);
+  f->dump_unsigned("pending", _pending);
+
+  f->open_array_section("revokes");
+  for (const auto &r : _revokes) {
+    f->open_object_section("revoke");
+    r.dump(f);
+    f->close_section();
+  }
+  f->close_section();
+}
+
+void Capability::generate_test_instances(list<Capability*>& ls)
+{
+  ls.push_back(new Capability);
+  ls.push_back(new Capability);
+  ls.back()->last_sent = 11;
+  ls.back()->last_issue_stamp = utime_t(12, 13);
+  ls.back()->set_wanted(14);
+  ls.back()->_pending = 15;
+  {
+    auto &r = ls.back()->_revokes.emplace_back();
+    r.before = 16;
+    r.seq = 17;
+    r.last_issue = 18;
+  }
+  {
+    auto &r = ls.back()->_revokes.emplace_back();
+    r.before = 19;
+    r.seq = 20;
+    r.last_issue = 21;
+  }
+}
+
+MEMPOOL_DEFINE_OBJECT_FACTORY(Capability, co_cap, mds_co);