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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "osd/osd_op_util.h"
#include "osd/ClassHandler.h"
#include "messages/MOSDOp.h"
using std::ostream;
using std::string;
using std::vector;
using ceph::bufferlist;
bool OpInfo::check_rmw(int flag) const {
ceph_assert(rmw_flags != 0);
return rmw_flags & flag;
}
bool OpInfo::may_read() const {
return need_read_cap() || check_rmw(CEPH_OSD_RMW_FLAG_CLASS_READ);
}
bool OpInfo::may_write() const {
return need_write_cap() || check_rmw(CEPH_OSD_RMW_FLAG_CLASS_WRITE);
}
bool OpInfo::may_cache() const { return check_rmw(CEPH_OSD_RMW_FLAG_CACHE); }
bool OpInfo::rwordered_forced() const {
return check_rmw(CEPH_OSD_RMW_FLAG_RWORDERED);
}
bool OpInfo::rwordered() const {
return may_write() || may_cache() || rwordered_forced();
}
bool OpInfo::includes_pg_op() const {
return check_rmw(CEPH_OSD_RMW_FLAG_PGOP);
}
bool OpInfo::need_read_cap() const {
return check_rmw(CEPH_OSD_RMW_FLAG_READ);
}
bool OpInfo::need_write_cap() const {
return check_rmw(CEPH_OSD_RMW_FLAG_WRITE);
}
bool OpInfo::need_promote() const {
return check_rmw(CEPH_OSD_RMW_FLAG_FORCE_PROMOTE);
}
bool OpInfo::need_skip_handle_cache() const {
return check_rmw(CEPH_OSD_RMW_FLAG_SKIP_HANDLE_CACHE);
}
bool OpInfo::need_skip_promote() const {
return check_rmw(CEPH_OSD_RMW_FLAG_SKIP_PROMOTE);
}
bool OpInfo::allows_returnvec() const {
return check_rmw(CEPH_OSD_RMW_FLAG_RETURNVEC);
}
void OpInfo::set_rmw_flags(int flags) {
rmw_flags |= flags;
}
void OpInfo::set_read() { set_rmw_flags(CEPH_OSD_RMW_FLAG_READ); }
void OpInfo::set_write() { set_rmw_flags(CEPH_OSD_RMW_FLAG_WRITE); }
void OpInfo::set_class_read() { set_rmw_flags(CEPH_OSD_RMW_FLAG_CLASS_READ); }
void OpInfo::set_class_write() { set_rmw_flags(CEPH_OSD_RMW_FLAG_CLASS_WRITE); }
void OpInfo::set_pg_op() { set_rmw_flags(CEPH_OSD_RMW_FLAG_PGOP); }
void OpInfo::set_cache() { set_rmw_flags(CEPH_OSD_RMW_FLAG_CACHE); }
void OpInfo::set_promote() { set_rmw_flags(CEPH_OSD_RMW_FLAG_FORCE_PROMOTE); }
void OpInfo::set_skip_handle_cache() { set_rmw_flags(CEPH_OSD_RMW_FLAG_SKIP_HANDLE_CACHE); }
void OpInfo::set_skip_promote() { set_rmw_flags(CEPH_OSD_RMW_FLAG_SKIP_PROMOTE); }
void OpInfo::set_force_rwordered() { set_rmw_flags(CEPH_OSD_RMW_FLAG_RWORDERED); }
void OpInfo::set_returnvec() { set_rmw_flags(CEPH_OSD_RMW_FLAG_RETURNVEC); }
int OpInfo::set_from_op(
const MOSDOp *m,
const OSDMap &osdmap)
{
vector<OSDOp>::const_iterator iter;
// client flags have no bearing on whether an op is a read, write, etc.
clear();
if (m->has_flag(CEPH_OSD_FLAG_RWORDERED)) {
set_force_rwordered();
}
if (m->has_flag(CEPH_OSD_FLAG_RETURNVEC)) {
set_returnvec();
}
// set bits based on op codes, called methods.
for (iter = m->ops.begin(); iter != m->ops.end(); ++iter) {
if ((iter->op.op == CEPH_OSD_OP_WATCH &&
iter->op.watch.op == CEPH_OSD_WATCH_OP_PING)) {
/* This a bit odd. PING isn't actually a write. It can't
* result in an update to the object_info. PINGs also aren't
* resent, so there's no reason to write out a log entry.
*
* However, we pipeline them behind writes, so let's force
* the write_ordered flag.
*/
set_force_rwordered();
} else {
if (ceph_osd_op_mode_modify(iter->op.op))
set_write();
}
if (ceph_osd_op_mode_read(iter->op.op))
set_read();
// set READ flag if there are src_oids
if (iter->soid.oid.name.length())
set_read();
// set PGOP flag if there are PG ops
if (ceph_osd_op_type_pg(iter->op.op))
set_pg_op();
if (ceph_osd_op_mode_cache(iter->op.op))
set_cache();
// check for ec base pool
int64_t poolid = m->get_pg().pool();
const pg_pool_t *pool = osdmap.get_pg_pool(poolid);
if (pool && pool->is_tier()) {
const pg_pool_t *base_pool = osdmap.get_pg_pool(pool->tier_of);
if (base_pool && base_pool->require_rollback()) {
if ((iter->op.op != CEPH_OSD_OP_READ) &&
(iter->op.op != CEPH_OSD_OP_CHECKSUM) &&
(iter->op.op != CEPH_OSD_OP_CMPEXT) &&
(iter->op.op != CEPH_OSD_OP_STAT) &&
(iter->op.op != CEPH_OSD_OP_ISDIRTY) &&
(iter->op.op != CEPH_OSD_OP_UNDIRTY) &&
(iter->op.op != CEPH_OSD_OP_GETXATTR) &&
(iter->op.op != CEPH_OSD_OP_GETXATTRS) &&
(iter->op.op != CEPH_OSD_OP_CMPXATTR) &&
(iter->op.op != CEPH_OSD_OP_ASSERT_VER) &&
(iter->op.op != CEPH_OSD_OP_LIST_WATCHERS) &&
(iter->op.op != CEPH_OSD_OP_LIST_SNAPS) &&
(iter->op.op != CEPH_OSD_OP_SETALLOCHINT) &&
(iter->op.op != CEPH_OSD_OP_WRITEFULL) &&
(iter->op.op != CEPH_OSD_OP_ROLLBACK) &&
(iter->op.op != CEPH_OSD_OP_CREATE) &&
(iter->op.op != CEPH_OSD_OP_DELETE) &&
(iter->op.op != CEPH_OSD_OP_SETXATTR) &&
(iter->op.op != CEPH_OSD_OP_RMXATTR) &&
(iter->op.op != CEPH_OSD_OP_STARTSYNC) &&
(iter->op.op != CEPH_OSD_OP_COPY_GET) &&
(iter->op.op != CEPH_OSD_OP_COPY_FROM) &&
(iter->op.op != CEPH_OSD_OP_COPY_FROM2)) {
set_promote();
}
}
}
switch (iter->op.op) {
case CEPH_OSD_OP_CALL:
{
bufferlist::iterator bp = const_cast<bufferlist&>(iter->indata).begin();
int is_write, is_read;
string cname, mname;
bp.copy(iter->op.cls.class_len, cname);
bp.copy(iter->op.cls.method_len, mname);
ClassHandler::ClassData *cls;
int r = ClassHandler::get_instance().open_class(cname, &cls);
if (r) {
if (r == -ENOENT)
r = -EOPNOTSUPP;
else if (r != -EPERM) // propagate permission errors
r = -EIO;
return r;
}
int flags = cls->get_method_flags(mname);
if (flags < 0) {
if (flags == -ENOENT)
r = -EOPNOTSUPP;
else
r = flags;
return r;
}
is_read = flags & CLS_METHOD_RD;
is_write = flags & CLS_METHOD_WR;
bool is_promote = flags & CLS_METHOD_PROMOTE;
if (is_read)
set_class_read();
if (is_write)
set_class_write();
if (is_promote)
set_promote();
add_class(std::move(cname), std::move(mname), is_read, is_write,
cls->allowed);
break;
}
case CEPH_OSD_OP_WATCH:
// force the read bit for watch since it is depends on previous
// watch state (and may return early if the watch exists) or, in
// the case of ping, is simply a read op.
set_read();
// fall through
case CEPH_OSD_OP_NOTIFY:
case CEPH_OSD_OP_NOTIFY_ACK:
{
set_promote();
break;
}
case CEPH_OSD_OP_DELETE:
// if we get a delete with FAILOK we can skip handle cache. without
// FAILOK we still need to promote (or do something smarter) to
// determine whether to return ENOENT or 0.
if (iter == m->ops.begin() &&
iter->op.flags == CEPH_OSD_OP_FLAG_FAILOK) {
set_skip_handle_cache();
}
// skip promotion when proxying a delete op
if (m->ops.size() == 1) {
set_skip_promote();
}
break;
case CEPH_OSD_OP_CACHE_TRY_FLUSH:
case CEPH_OSD_OP_CACHE_FLUSH:
case CEPH_OSD_OP_CACHE_EVICT:
// If try_flush/flush/evict is the only op, can skip handle cache.
if (m->ops.size() == 1) {
set_skip_handle_cache();
}
break;
case CEPH_OSD_OP_READ:
case CEPH_OSD_OP_SYNC_READ:
case CEPH_OSD_OP_SPARSE_READ:
case CEPH_OSD_OP_CHECKSUM:
case CEPH_OSD_OP_WRITEFULL:
if (m->ops.size() == 1 &&
(iter->op.flags & CEPH_OSD_OP_FLAG_FADVISE_NOCACHE ||
iter->op.flags & CEPH_OSD_OP_FLAG_FADVISE_DONTNEED)) {
set_skip_promote();
}
break;
// force promotion when pin an object in cache tier
case CEPH_OSD_OP_CACHE_PIN:
set_promote();
break;
default:
break;
}
}
if (rmw_flags == 0)
return -EINVAL;
return 0;
}
ostream& operator<<(ostream& out, const OpInfo::ClassInfo& i)
{
out << "class " << i.class_name << " method " << i.method_name
<< " rd " << i.read << " wr " << i.write << " allowed " << i.allowed;
return out;
}
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