fixup for to_error@Clang

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimon/osd: drop present_shards from PGLog handler's partial_write()

In correspondence with classical's 880a17e39626d99a0b6cc8259523daa83c72802c.

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: handle retieval of RADOS xattrs from attr_cache regardless of PG backend

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: improve debugs in ECTransaction::Generate::Generate()

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimon/osd: implement PG::PGLogEntryHandler::partial_write() for FastEC

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: port changes from classial FastEC

This commit ports changes from c116b8615d68a3926dc78a4965cc0a28ff85d4f2.

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: replicated backend also uses attr_cache for xattrs handling

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

tests: LibRadosIoEC allows for overwrites / unalligned writes on crimson

1. crimson-osd does support solely the FastEC flavor of EC pools;
   SlowEC isn't now and won't be implemented.
2. FastEC imposes the EC overwrites support.
3. When run against crimson's EC implementation, the tests shall
   not enforce e.g. ENOTSUPP on overwrite.

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

fixup: crimson/osd, test: turn the EC tests on for crimson

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: implement handling of RADOS' extended attirbutes in FastEC

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: drop unused variable from PGBackend::getxattr()

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: drop unneccessary variant of PGBackend::getxattr()

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: don't decode EC only attrs are needed

This a crimson coutnerpart of 417fb71c9b5628726d3217909ba1b6d3e7bf251a.

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

rmw_pipeline in RMWPipeline::Op

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

fixup: crimson/osd: settle ECRecoveryBackend -- local MOSDPGPush

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

fixup: crimson/osd: settle RMWPipeline and RMWPipeline within ECBackend

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

fixup: crimson/osd: wire MOSDECSubOpWriteReply up with ECBackend

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

fixup: crimson/osd: route EC messages over PG

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: fix unused variable warnings pg.cc and seastore

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

ECCommon: fixups for crimson's FastEC support

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

fixup: crimson/osd: bring ECRecoveryBackend, phase 0.1

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

fixup: crimson/osd: translate for os::Transaction into ECTransaction

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

fixup: crimson/osd: switch return type of PG::get_dpp to unify with ECListener

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: switch return type of PG::get_dpp to unify with ECListener

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: settle ECExtentCache within ShardService

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: PGBackend::_read() takes object_size for the sake of FastEC

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

fixup: fixup: crimson/osd: add support for MOSDECSubOpRead

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

fixup: crimson/osd: wire MOSDECSubOpWriteReply up with ECBackend

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

fixup: crimson/osd: implement ECBackend::handle_rep_read_reply()

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

fixup: crimson/osd: translate for os::Transaction into ECTransaction

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

fixup: crimson/osd: implement ECBackend::objects_read_and_reconstruc

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

fixup: crimson/osd: settle RMWPipeline and RMWPipeline within ECBacken

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

fixup: crimson/osd: settle RMWPipeline and RMWPipeline within ECBackend

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: settle RMWPipeline and RMWPipeline within ECBackend

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: tackle the get_write_plan() problem of ECBackend

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

fixup: crimson/osd: settle ECRecoveryBackend -- misc small bits of ECListener

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

fixup: crimson/osd: bring ECRecoveryBackend, phase 0.1

Per ecda6780c93db66865533a27dab5b0beb052f5fa.

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd, test: turn the EC tests on for crimson

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

Revert "crimson/.../object_context: drop recovery_read_marker"

This reverts commit c1b7435d6c3a598ee13dd57ba8b83014c4cca893.

EC support needs `wait_for_recovery()`.

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

osd: ECCommon respects crimson non-null obc for new objects

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: bring get_temp_recovery_object() to PGRecovery for EC

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: settle ECRecoveryBackend -- misc small bits of ECListener

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: settle ECRecoveryBackend -- local MOSDPGPush

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: settle ECRecoveryBackend -- bring maybe_load_obc()

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: make objctx loading agnostic about source of attrs

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/errorator: helpers for tl::expected

`ErrorHelper` is supposed to facilitate transformation of `std::error_code`
(and similar) into an immediately failed errorated `future` with extra error
checking.

The main idea is to let something like:

```cpp
my_ertr_t::future<my_value_t> foo() {
  // ...
  // `maybe_decoded` here is an instance of `tl::expected` carrying `std::error_code`
  // in its error part
  if (!maybe_decoded) {
    // `std::error_code` can convey errors `my_ertr_t` does not allow – in that case,
    // it would be helpful to get at least a run-time assert.
    return ErrorHelper<my_ertr_t>::from_error<my_value_t>(maybe_decoded.error());
  }
  // ...
}
```

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>
(cherry picked from commit a7ffc18eb40b9145fca5f064c4b3d097bffeb8d0)

crimson/*: rename errorator-loop.h into errorator-utils.h

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>
(cherry picked from commit 682e4ff4322a895a0bdb6c9cc0d00a516499baad)

crimson/osd: delegate md loading outside of ObjectContextLoader::load_obc()

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: dissect metadata decoding from PGBackend::load_metadata()

This loosens the coupling between loading and decoding making
the latter reusable with metadata coming from other source than
local object store.

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: make OSD::osd_stat compliant with multi-core

The EC recovery backend needs `inc_osd_stat_repaired()`.

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: add support for reads over EC pool

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: fix compiler warnings on copy elision being prevented

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: on the cloning path bump obj version closer to its usage

My understanding at the time of writing is this change is a pure
refactoring.

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: fix std::moving in ShardServices

```
/home/rzarzynski/ceph2/src/crimson/osd/shard_services.cc:595:9:   required from here
/home/rzarzynski/ceph2/src/crimson/osd/shard_services.cc:596:10: warning: moving a temporary object prevents copy elision [-Wpessimizing-move]
  596 |     auto [pool, name, ec_profile] = std::move(std::get<0>(ret).get0());
      |          ^~~~~~~~~~~~~~~~~~~~~~~~
/home/rzarzynski/ceph2/src/crimson/osd/shard_services.cc:596:10: note: remove ‘std::move’ call
/home/rzarzynski/ceph2/src/crimson/osd/shard_services.cc:597:10: warning: moving a temporary object prevents copy elision [-Wpessimizing-move]
  597 |     auto coll = std::move(std::get<1>(ret).get0());
      |          ^~~~
/home/rzarzynski/ceph2/src/crimson/osd/shard_services.cc:597:10: note: remove ‘std::move’ call
```

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: implement ECRecoveryBackend::commit_txn_send_replies()

This bypasses the crimson-msgr for local ops.

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: implement ECRecoveryBackend::recover_object()

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: wire up MOSDPGPush and MOSDPGPushReply in ECRecoveryBackend

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: ECReplicatedBackend embraces ECCommon::RecoveryBackend

The idea is to compose the latter into the former (thus the private
inheritance) to easily build a class that fulfills the crimon iface
called `crimson::ReplicatedBackend`.

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: settle ECCommon::RecoveryBackend within crimson-osd

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

fixup: crimson/osd: compile and link with ECTransaction.cc

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

fixup: crimson/osd: add support for error handling around MOSDECSubOpRead

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

Revert "crimson: clarify RecoveryBackend::handle_backfill_op"

This reverts commit ecda6780c93db66865533a27dab5b0beb052f5fa.

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: wire MOSDPGPush{,Reply} with ECRecoveryBackend, phase 2

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: wire MOSDPGPush{,Reply} with ECRecoveryBackend

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: bring factory to RecoveryBackend

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: bring ECRecoveryBackend, phase 0.1

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: conceptually move delete handling out of ReplicatedRecoveryBackend

This logic is shareable between ReplicatedRecoveryBackend and
coming ECRecoveryBackend.

The switch happens currently only structural level; shuffling
betweeen source files will happen later.

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: bring ECRecoveryBackend, phase 0

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: drop the green thread for ECBackend::submit_transaction()

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: ECBackend::handle_sub_write() handles the end of local write

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: improve debugs in ECBackend::handle_rep_write_reply

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: handle_rep_write_reply() takes ECSubWriteReply

Taking this ECSubWriteReply instead of MOSDECSubOpWriteReply
makes this method easier to reuse for handling local writes.

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: extend PG::should_send_op() and move it to .cc

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: implement ECBackend::objects_read_and_reconstruct

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: implement submit_transaction() of ECBackend

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: PCBackend::_submit_transaction() takes ObjectContext

For the sake of ECBackend.

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: bring attr cache to ObjectContext

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: compile and link with ECTransaction.cc

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: drop the mock of ECTransaction-for-crimson from ECCommon

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: translate for os::Transaction into ECTransaction

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: make ECCommon compatible with libfmt

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: wire MOSDECSubOpWriteReply up with ECBackend

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: implement ECBackend::handle_rep_read_reply()

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: settle RMWPipeline and RMWPipeline within ECBackend

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: add support for ECWrites on replica

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: PG::log_operation() is now able to update hset

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

fixup: crimson/osd: add support for MOSDECSubOpRead

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

crimson/osd: instantiate an EC plugin

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: route EC messages over PG

The reason behind this change is to avoid mixing responsibilities.
Although in the classical OSD `ECBackend` handles virually everything
related to handling e.g.

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: PGBackend stores pg_shard_t instead of just shard_id_t

It's worth a note that `ReplicatedBackend` (derivate of `PGBackend`)
already holds `pg_shard_t`, so information is duplicated.
As the `ECBackend` starts needs `pg_shard_t` as well, let's rework.

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: add support for attr retrieval of MOSDECSubOpRead

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: add support for error handling around MOSDECSubOpRead

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: add support for MOSDECSubOpRead

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: wire the EC-specific messages up

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: bring ECRepRequest

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd: always dencode object_info_t with hobject_t

The classical OSD never uses the the `encode_no_oid()`
and `decode_no_oid()` variants of object info's encoding
machinery. crimson departed from this to such an extent
on recovery it sends `OI_ATTR` with meaningless `soid`-
related bytes. The net result is the following crash in
an heterogenous cluster:

```
    -7> 2023-08-22T14:36:57.621+0200 7f25113c8700  0 osd.1 pg_epoch: 62 pg[1.0( v 42'43 lc 39'37 (0'0,42'43] local-lis/les=45/58 n=4 ec=6/6 lis/c=45/6 les/c/f=58/8/0 sis=45) [1] r=0 lpr=53 pi=[6,45)/1 crt=42'43 lcod 0'0 mlcod 0'0 active+recovering rops=2 m=2 mbc={255={(0+1)=2}}] get_object_context:11843: soid.pool=1
    -6> 2023-08-22T14:36:57.621+0200 7f25113c8700 10 osd.1 pg_epoch: 62 pg[1.0( v 42'43 lc 39'37 (0'0,42'43] local-lis/les=45/58 n=4 ec=6/6 lis/c=45/6 les/c/f=58/8/0 sis=45) [1] r=0 lpr=53 pi=[6,45)/1 crt=42'43 lcod 0'0 mlcod 0'0 active+recovering rops=2 m=2 mbc={255={(0+1)=2}}] get_object_context: obc NOT found in cache: 1:30306672:devicehealth::main.db.0000000000000000:head
    -5> 2023-08-22T14:36:57.621+0200 7f25113c8700  0 osd.1 pg_epoch: 62 pg[1.0( v 42'43 lc 39'37 (0'0,42'43] local-lis/les=45/58 n=4 ec=6/6 lis/c=45/6 les/c/f=58/8/0 sis=45) [1] r=0 lpr=53 pi=[6,45)/1 crt=42'43 lcod 0'0 mlcod 0'0 active+recovering rops=2 m=2 mbc={255={(0+1)=2}}] get_object_context:11865 bv came from OI_ATTR
    -4> 2023-08-22T14:36:57.621+0200 7f25113c8700  0 osd.1 pg_epoch: 62 pg[1.0( v 42'43 lc 39'37 (0'0,42'43] local-lis/les=45/58 n=4 ec=6/6 lis/c=45/6 les/c/f=58/8/0 sis=45) [1] r=0 lpr=53 pi=[6,45)/1 crt=42'43 lcod 0'0 mlcod 0'0 active+recovering rops=2 m=2 mbc={255={(0+1)=2}}] get_object_context:11897 just after bv decode oi.soid.pool=-9223372036854775808
    -3> 2023-08-22T14:36:57.621+0200 7f25113c8700  0 osd.1 pg_epoch: 62 pg[1.0( v 42'43 lc 39'37 (0'0,42'43] local-lis/les=45/58 n=4 ec=6/6 lis/c=45/6 les/c/f=58/8/0 sis=45) [1] r=0 lpr=53 pi=[6,45)/1 crt=42'43 lcod 0'0 mlcod 0'0 active+recovering rops=2 m=2 mbc={255={(0+1)=2}}] soid.pool=-9223372036854775808 info.pgid.pool()=1
    -2> 2023-08-22T14:36:57.641+0200 7f25113c8700 -1 ../src/osd/PrimaryLogPG.cc: In function 'ObjectContextRef PrimaryLogPG::get_object_context(const hobject_t&, bool, const std::map<std::__cxx11::basic_string<char>, ceph::buffer::v15_2_0::list, std::less<void> >*)' thread 7f25113c8700 time 2023-08-22T14:36:57.625282+0200
../src/osd/PrimaryLogPG.cc: 11906: FAILED ceph_assert(oi.soid.pool == (int64_t)info.pgid.pool())

 ceph version 18.0.0-4293-g6cd888f2315 (6cd888f2315e525412ee7d39587d11d0a19245c2) reef (dev)
 1: (ceph::__ceph_assert_fail(char const*, char const*, int, char const*)+0x127) [0x5602381712da]
 2: (ceph::register_assert_context(ceph::common::CephContext*)+0) [0x560238171505]
 3: (PrimaryLogPG::get_object_context(hobject_t const&, bool, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, ceph::buffer::v15_2_0::list, std::less<void>, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, ceph::buffer::v15_2_0::list> > > const*)+0xc9e) [0x560237b5aec6]
 4: (non-virtual thunk to PrimaryLogPG::get_obc(hobject_t const&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, ceph::buffer::v15_2_0::list, std::less<void>, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, ceph::buffer::v15_2_0::list> > > const&)+0x30) [0x560237c2f9d5]
 5: (ReplicatedBackend::handle_pull_response(pg_shard_t, PushOp const&, PullOp*, std::__cxx11::list<ReplicatedBackend::pull_complete_info, std::allocator<ReplicatedBackend::pull_complete_info> >*, ceph::os::Transaction*)+0x5dc) [0x560237e9d116]
 6: (ReplicatedBackend::_do_pull_response(boost::intrusive_ptr<OpRequest>)+0x477) [0x560237e9e6d5]
 7: (ReplicatedBackend::_handle_message(boost::intrusive_ptr<OpRequest>)+0x1e1) [0x560237e9f2ef]
 8: (PGBackend::handle_message(boost::intrusive_ptr<OpRequest>)+0x59) [0x560237c3f3bb]
 9: (PrimaryLogPG::do_request(boost::intrusive_ptr<OpRequest>&, ThreadPool::TPHandle&)+0x93f) [0x560237bb7bdd]
 10: (OSD::dequeue_op(boost::intrusive_ptr<PG>, boost::intrusive_ptr<OpRequest>, ThreadPool::TPHandle&)+0x531) [0x5602379dcb41]
 11: (ceph::osd::scheduler::PGRecoveryMsg::run(OSD*, OSDShard*, boost::intrusive_ptr<PG>&, ThreadPool::TPHandle&)+0x22c) [0x560237d5b8f8]
 12: (OSD::ShardedOpWQ::_process(unsigned int, ceph::heartbeat_handle_d*)+0x3386) [0x5602379ff9f4]
 13: (ShardedThreadPool::shardedthreadpool_worker(unsigned int)+0x979) [0x56023815f9c3]
 14: (ShardedThreadPool::WorkThreadSharded::entry()+0x17) [0x560238163279]
 15: (Thread::entry_wrapper()+0x43) [0x56023814c0af]
 16: (Thread::_entry_func(void*)+0xd) [0x56023814c0cb]
 17: /lib/x86_64-linux-gnu/libpthread.so.0(+0x8609) [0x7f2531844609]
 18: clone()
```

Fixes: https://tracker.ceph.com/issues/62526
Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>

crimson/osd, osd: build and link ECCommon

The modifications of the code shared with the classical OSD boil
down to just adding some `WITH_CRIMSON` guards; nothing more.

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

Merge pull request #66740 from xxhdx1985126/wip-seastore-rbm-no-backref

crimson/os/seastore: drop backrefs in cases of pure rbm seastores

Reviewed-by: Samuel Just <sjust@redhat.com>

Merge pull request #67063 from idryomov/wip-74529

qa: don't assume that /dev/sda or /dev/vda is present in unmap.t

Reviewed-by: Ramana Raja <rraja@redhat.com>

Merge pull request #67048 from idryomov/wip-74513

qa: krbd_blkroset.t: eliminate a race in the open_count test

Reviewed-by: Ramana Raja <rraja@redhat.com>