Merge pull request #21437 from pdvian/wip-23683-luminous

luminous: rgw: radosgw-admin should not use metadata cache for readonly commands

Reviewed-by: Casey Bodley <cbodley@redhat.com>

Merge pull request #21724 from smithfarm/wip-23231-luminous

luminous: rgw: rgw_statfs should report the correct stats

Reviewed-by: Casey Bodley <cbodley@redhat.com>

Merge pull request #21738 from cbodley/wip-23906

luminous: rgw: fix use of libcurl with empty header values

Reviewed-by: Casey Bodley <cbodley@redhat.com>

Merge pull request #22177 from pdvian/wip-24120-luminous

luminous: rgw: trim all spaces inside a metadata value

Reviewed-by: Matt Benjamin <mbenjami@redhat.com>

Merge pull request #22302 from linuxbox2/wip-luminous-irange

luminous: rgw: add configurable AWS-compat invalid range get behavior

Reviewed-by: Casey Bodley <cbodley@redhat.com>

Merge pull request #22352 from pdvian/wip-24252-luminous

luminous: rgw: Do not modify email if argument is not set

Reviewed-by: Casey Bodley <cbodley@redhat.com>

Merge pull request #22363 from mdw-at-linuxbox/wip-luminous-rgw-implt

luminous: rgw: making implicit_tenants backwards compatible

Reviewed-by: Matt Benjamin <mbenjami@redhat.com>
Reviewed-by: Radoslaw Zarzynski <rzarzyns@redhat.com>

Merge pull request #21316 from pdvian/wip-23607-luminous

luminous: rbd: improve 'import-diff' corrupt input error messages

Reviewed-by: Jason Dillaman <dillaman@redhat.com>

Merge pull request #22180 from pdvian/wip-24156-luminous

luminous: [rbd-mirror] potential deadlock when running asok 'flush' command

Reviewed-by: Jason Dillaman <dillaman@redhat.com>

Merge pull request #22370 from dillaman/wip-24378-luminous

luminous: librbd: commit IO as safe when complete if writeback cache is disabled

Reviewed-by: Mykola Golub <mgolub@mirantis.com>

Merge pull request #21699 from jcsp/wip-mgr-doc-bal-luminous

luminous: doc/mgr/balancer: document

Reviewed-By: Sage Weil <sage@redhat.com>

rgw: making implicit_tenants backwards compatible.

In jewel, "rgw keystone implicit tenants" only applied to swift. As of
luminous), this option applies to s3 also.
Sites that used this feature with jewel now have outstanding data that
depends on the old behavior.

The fix here is to expand "rgw keystone implicit tenants" so that it
can be set to any of "none", "all", "s3" or "swift" (also 0=false=none,
1=true=all).  When set to "s3" or "swift", the actual id lookup
is also partitioned.

Formerly "rgw keystone implicit tenants" was a legacy opt.
This change converts it to the new style of option,
including support for dynamically changing it.

Fixes: http://tracker.ceph.com/issues/24348
Signed-off-by: Marcus Watts <mwatts@redhat.com>
(cherry picked from commit a28a38f6e91da3abe59c34fad0e059eeaf29a65f)

Merge pull request #22375 from dzafman/wip-scrub-omap-luminous

Reviewed-by: Kefu Chai <kchai@redhat.com>

Merge pull request #21187 from smithfarm/wip-23157-luminous

luminous: mds: underwater dentry check in CDir::_omap_fetched is racy

Merge pull request #21278 from batrick/i22696

luminous: client: dirty caps may never get the chance to flush

mds: fix check of underwater dentries

Underwater dentry is dentry that is dirty in our cache from journal
replay, but had already been flushed to disk before the mds failed.
To decide if an dentry is underwater, original code compares dirty
dentry's version to on-disk dirfrag's version. This method is racy
because CDir::log_mark_dirty() can increase dirfrag's version without
adding log event. After mds failover, version of dirfrag from journal
replay can be less than on-disk dirfrag's version. So newly dirtied
dentry can be equal to or less than the on-disk dirfrag's version.

The race can cause incorrect fragstat/rstat

Fixes: http://tracker.ceph.com/issues/23032
Signed-off-by: Yan, Zheng <zyan@redhat.com>
(cherry picked from commit 9d271696b7735ab5b7384cdd386d6ac3eaafe437)

Conflicts:
src/mds/CDir.cc - conditional being replaced by "if (!dn)" is different
                          in luminous

client: make mark_caps_clean and mark_caps_dirty as member function to Inode

Signed-off-by: dongdong tao <tdd21151186@gmail.com>
(cherry picked from commit 06ce613779a810dd979cb2eb15b510131a81fd74)

client: fix dirty caps might never be flushed

Fixes: http://tracker.ceph.com/issues/22546
Signed-off-by: dongdong tao <tdd21151186@gmail.com>
(cherry picked from commit aeb920be8ab5f0e5e47d82943c214b012bb8ec5c)

Conflicts:
src/client/Client.cc

Merge pull request #22258 from yuriw/wip-yuriw-fix-luminous

luminous: qa/tests: added missed ubuntu_latest

Merge pull request #21475 from pdvian/wip-23704-luminous

luminous: fuse: wire up fuse_ll_access

Merge pull request #22119 from pdvian/wip-24049-luminous

luminous: ceph-fuse: missing dentries in readdir result

Merge branch 'luminous' into wip-24049-luminous

Merge branch 'luminous' into wip-23704-luminous

Merge pull request #21495 from pdvian/wip-23770-luminous

luminous: ceph-fuse: return proper exit code

Merge pull request #22176 from pdvian/wip-24107-luminous

luminous: mds: set could_consume to false when no purge queue item actually exe…

Merge pull request #22310 from ukernel/luminous-24341

luminous: mds: fix some memory leak

Merge pull request #22271 from pdvian/wip-24205-luminous

luminous: mds: broadcast quota to relevant clients when quota is explicitly set

Merge pull request #22221 from pdvian/wip-24201-luminous

luminous: client: fix issue of revoking non-auth caps

Merge pull request #22208 from pdvian/wip-24188-luminous

luminous: kceph: umount on evicted client blocks forever

Merge pull request #22171 from ukernel/luminous-24108

luminous: mds: avoid calling rejoin_gather_finish() two times successively

Merge pull request #22168 from ukernel/luminous-24207

luminous: client: avoid freeing inode when it contains TX buffer head

Merge pull request #22118 from pdvian/wip-24050-luminous

luminous: mds: include nfiles/nsubdirs of directory inode in MClientCaps

Merge pull request #22018 from batrick/i23991

luminous: client: hangs on umount if it had an MDS session evicted

Merge pull request #21990 from batrick/i23935

luminous: mds: don't discover inode/dirfrag when mds is in 'starting' state

Merge pull request #21989 from batrick/i24130

luminous: mds: handle imported session race

Merge pull request #21922 from pdvian/wip-23984-luminous

luminous: mds: mark new root inode dirty

Merge pull request #21921 from pdvian/wip-23982-luminous

luminous: qa: fix blacklisted check for test_lifecycle

Merge pull request #21901 from pdvian/wip-23951-luminous

luminous: mds: kick rdlock if waiting for dirfragtreelock

Merge pull request #21900 from pdvian/wip-23946-luminous

luminous: mds: crash when failover

Merge pull request #21874 from pdvian/wip-23936-luminous

luminous: cephfs-journal-tool: wait prezero ops before destroying journal

Merge pull request #21841 from pdvian/wip-23931-luminous

luminous: qa: remove racy/buggy test_purge_queue_op_rate

Merge pull request #21730 from joscollin/wip-23933-luminous

luminous: client: avoid second lock on client_lock

Merge pull request #21617 from pdvian/wip-23835-luminous

luminous: mds: fix occasional dir rstat inconsistency between multi-MDSes

Merge pull request #21600 from joscollin/wip-23475-luminous

luminous: ceph-fuse: trim ceph-fuse -V output

Merge pull request #21616 from joscollin/wip-23308-luminous

luminous: doc: Fix -d description in ceph-fuse

Merge pull request #21899 from pdvian/wip-23950-luminous

luminous: mds: trim log during shutdown to clean metadata

Merge pull request #21589 from pdvian/wip-23818-luminous

luminous: client: add client option descriptions

Merge pull request #21687 from batrick/i23638

luminous: ceph-fuse: getgroups failure causes exception

librbd: commit IO as safe when complete if writeback cache is disabled

We do not need to flush IO to ensure its safe if the writeback cache is
disabled when performing a journal replay. Instead, immediately mark the
IO as safe and let the journal's periodic commit throttle handle updating
the position.

Fixes: http://tracker.ceph.com/issues/23516
Signed-off-by: Jason Dillaman <dillaman@redhat.com>
(cherry picked from commit a27269ab95e4cadcade2131367e40ccf1011316a)

Conflicts:
src/test/rbd_mirror/test_ImageReplayer.cc: removed "md_config_t::get_val" usage

rgw: Do not modify email if argument is not set

The RGW Admin OPS API overwrites the users email either it is not set via argument, e.g. when executing /{admin}/user?uid=test5&suspended=true.

Signed-off-by: Volker Theile <vtheile@suse.com>
(cherry picked from commit c6792a8be2fc1496e7a76b0e6b2579d32556b6b3)

osd: Handle omap and data digests independently

Caused by: be078c8b7b131764caa28bc44452b8c5c2339623
The original attempt above to fix the omap_digest handling when
data_digest isn't present had 2 errors.  First, it checked
is_data_digest() and is_omap_digest() instead of digest_present and
omap_digest_present which indicate the source digest is available.
Second, MAYBE could only be set if both digests are available.

Fixes: http://tracker.ceph.com/issues/24366
Signed-off-by: David Zafman <dzafman@redhat.com>
(cherry picked from commit 01f9669928abd571e14421a51a749d44fa041337)

cleanup: Remove debug option osd_debug_scrub_chance_rewrite_digest

This option seems pointless and there are no test cases that use it.

Signed-off-by: David Zafman <dzafman@redhat.com>
(cherry picked from commit 6adeaed32f70923d012bf9410bfa8651694be3cf)

osd/PrimaryLogPG: do not set data/omap digest blindly

As bluestore has bulitin csum, we generally no longer generate
object data digest for now. The consequence is that we should
handle data/omap digest more carefully to make certain ops,
such as copy_from/promote, to work properly since they heavily
relies on data digest for data transfer correctness.

Example of failure:
http://pulpito.ceph.com/xxg-2017-09-30_11:46:34-rbd-master-distro-basic-mira/1690609/

Signed-off-by: xie xingguo <xie.xingguo@zte.com.cn>
(cherry picked from commit be078c8b7b131764caa28bc44452b8c5c2339623)

Conflicts:
src/osd/PrimaryLogPG.cc (still have snapdir)

client: fix error operator precedence

    /home/pdonnell/ceph/src/client/Client.cc: In member function ‘int Client::mount(const string&, const UserPerm&, bool)’:
    /home/pdonnell/ceph/src/client/Client.cc:5681:23: warning: suggest parentheses around ‘+’ inside ‘<<’ [-Wparentheses]
        return CEPH_FUSE_NO_MDS_UP;
                    ~~^~

Found by gcc. I am ashamed.

Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
(cherry picked from commit 75f980d85256e22b7b79e5f64bfa3fc6018328b5)

ceph-fuse: exit with failure on failed mount

Fixes: https://tracker.ceph.com/issues/23665
Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
(cherry picked from commit 7740fcde942603750029322ad2c16c18a7b546ab)

Conflicts:
src/ceph_fuse.cc : Resolved in main

common: ignore errors during preforker exit

Caller can't do anything useful and it obsecures the error the caller wants to
return.

Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
(cherry picked from commit 3f0b7d96f5cb96ff61c935777671ab7ddd94cfd3)

client: do not overload system errnos

Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
(cherry picked from commit 26f717361ea025462bc8016aca5a7c130048e769)

rbd: improve 'import-diff' corrupt input error messages

Fixes: http://tracker.ceph.com/issues/18844
Signed-off-by: Jason Dillaman <dillaman@redhat.com>
(cherry picked from commit b28e5af4986ee5cea09748f0f2ef4aaacc0d7f87)

rbd: import with option --export-format fails to protect snapshot

Fixes: http://tracker.ceph.com/issues/23038
Signed-off-by: songweibin <song.weibin@zte.com.cn>
(cherry picked from commit 8f43eff6da4dc5e7da7da082e08157dd55667b21)

Conflicts:
src/tools/rbd/action/Export.cc : Resolved in do_export_diff_fd

rbd:export/import image-meta when we export/import an image

when we do exporting/importing an image, we should export or import the image-meta of this image at the same time

Signed-off-by: PCzhangPC <pengcheng.zhang@easystack.cn>
(cherry picked from commit 2f0b233a31edfa28c6695e5ab1efac7cd7564422)

mds: trim log during shutdown to clean metadata

Otherwise the trimming won't advance so that the remaining inodes are marked
clean.

Fixes: http://tracker.ceph.com/issues/23923
Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
(cherry picked from commit c60ef1b806c4a0c60362193675990447d82a65f4)

Merge pull request #22191 from alfredodeza/backport-wip-cv-ansible-deps

lumionus ceph-volume tests.functional install new ceph-ansible dependencies

Reviewed-by: Andrew Schoen <aschoen@redhat.com>

mds: fix leak of MDSCacheObject::waiting

Fixes: http://tracker.ceph.com/issues/24289
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
(cherry picked from commit 8f3c8bf6eafd3545c3c786b8520e8ff2c40af2a0)

mds: fix some memory leak

Fixes: http://tracker.ceph.com/issues/24289
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
(cherry picked from commit e7c149b93dc384ee4a2c8250c502548d12535123)

rgw: add configurable AWS-compat invalid range get behavior

If rgw_ignore_get_invalid_range is set, treat invalid range
restrictions as a request for the full object.  By default, retain
the RGW behavior to fail with ERANGE.

Fixes: http://tracker.ceph.com/issues/24317
Signed-off-by: Matt Benjamin <mbenjamin@redhat.com>
(cherry picked from commit b8a3baffddb0f0082a9b250693d26d934eaf2650)
Signed-off-by: Matt Benjamin <mbenjamin@redhat.com>

mds: broadcast quota to relevant clients when quota is explicitly set

Try to broadcast quota to relevant clients proactively if quota is
explicitly set by someone, in case that client won't get quota update
for a long time.

Fixes: http://tracker.ceph.com/issues/24133
Signed-off-by: Zhi Zhang <zhangz.david@outlook.com>
(cherry picked from commit b2a7643b102dbbb8221dcb8a785db5e4276ac284)

qa/tests: added missed ubuntu_latest

Signed-off-by: Yuri Weinstein <yweinste@redhat.com>

doc: Fix typo in ceph-fuse

Fixes: https://github.com/ceph/ceph/pull/21616#pullrequestreview-122923127
Signed-off-by: Jos Collin <jcollin@redhat.com>
(cherry picked from commit 7fd3189c98b0b1c2885110c2c33487ef36a9596a)

Merge pull request #21603 from joscollin/wip-23151-luminous

luminous: doc: Update ceph-fuse doc

Reviewed-by: Sage Weil <sage@redhat.com>

client: fix issue of revoking non-auth caps

when non-auth mds revokes caps, Fcb caps can still be issued by auth
auth mds. It's wrong to flush buffer or invalidate cache when non-auth
mds revokes other caps. This bug can cause client to not respond the
revoke.

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Fixes: https://tracker.ceph.com/issues/24172
(cherry picked from commit 341a9114e0726e1a7cbb7e6f22adb54c2024c506)

Merge pull request #22076 from tchaikov/wip-cmake-build-rocksdb-no-Werror

luminous: cmake: disable FAIL_ON_WARNINGS for rocksdb

Reviewed-by: Nathan Cutler <cutler@suse.cz>
Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>

Merge pull request #22197 from dzafman/wip-test-fixes-luminous

luminous: test fixes

Reviewed-by: Kefu Chai <kchai@redhat.com>

qa/tasks/cephfs: add timeout parameter to kclient umount_wait

Just make caller happy. there is no easy way to support timeout.

Signed-off-by: Yan, Zheng <zyan@redhat.com>
Fixes: https://tracker.ceph.com/issues/24053
(cherry picked from commit e7d0b41deae7ec99ddf0a1f5f30ea82683b7b474)

mds: reply session reject for open request from blacklisted client

Kernel client and old version libcephfs do not check if themselves
are blacklisted. They can be stuck at opening session after getting
blacklisted. The session reject message can avoid this.

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Fixes: https://tracker.ceph.com/issues/24054
(cherry picked from commit b7c6cd8a54f094acb58603b8c6bae9e570a73e27)

test: wait_for_pg_stats() should do another check after last 13 second sleep

Signed-off-by: David Zafman <dzafman@redhat.com>
(cherry picked from commit 151de1797b9163918b95a5996f422688e0964126)

os/bluestore: fix data read error injection in bluestore

Signed-off-by: Sage Weil <sage@redhat.com>
(cherry picked from commit be32d15a04d9d900f604aa366e82791249f1bdb2)

ceph-volume tests.functional install new ceph-ansible dependencies

Make note that ceph-ansible's requirements.txt can't be used just yet

Signed-off-by: Alfredo Deza <adeza@redhat.com>
(cherry picked from commit 22310f43165e474e8e12732be57217b26e2b5424)

rbd-mirror: make 'flush' asok command asynchronous

Signed-off-by: Mykola Golub <mgolub@suse.com>
(cherry picked from commit 6fce4cabe7874efef780c7adce8479db8571afe7)

rbd-mirror: don't reregister asok hook in process entry thread

It might get stuck if the asok is busy executing a command.
Instead kick status update, which will call reregister on finish.

Fixes: http://tracker.ceph.com/issues/24141
Signed-off-by: Mykola Golub <mgolub@suse.com>
(cherry picked from commit 43e50bd582ba2d1b66f55d7f8d2b7f030da99ee6)

rgw: trim all spaces inside a metadata value

Fixes: http://tracker.ceph.com/issues/23301
Signed-off-by: Orit Wasserman <owasserm@redhat.com>
(cherry picked from commit 9dfd55826378292fc11074a73ff6a75f40122aa2)

mds: set could_consume to false when no purge queue item actually executed

Fixes: http://tracker.ceph.com/issues/24073
Signed-off-by: Xuehan Xu <xuxuehan@360.cn>
(cherry picked from commit 46b4e6afa631058fe066bfd58c76d644d5c2181d)

Merge pull request #21502 from smithfarm/wip-23782-luminous

luminous: table of contents doesn't render for luminous/jewel docs

Reviewed-by: Alfredo Deza <adeza@redhat.com>
Reviewed-by: Casey Bodley <cbodley@redhat.com>

mds: tighten conditions of calling rejoin_gather_finish()

Handle two cases:
1. mds receives all cache rejoin messages, then receives mdsmap that
   says mds cluster enters rejoining state.
2. when opening undef inodes/dirfrags, other mds restarts.

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
(cherry picked from commit 0a38a499b86c0ee13aa0e783a8359bcce0876088)

mds: avoid calling rejoin_gather_finish() two times successively

If MDCache::rejoin_gather is empty and MDCache::rejoins_pending is true
when MDCache::process_imported_caps() calls maybe_send_pending_rejoins()
Both MDCache::rejoin_send_rejoins() and MDCache::process_imported_caps()
may call rejoin_gather_finish().

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Fixes: http://tracker.ceph.com/issues/24047
(cherry picked from commit 0451dae777a2a9b1e70303d7bbc4398849f45f3e)

mds: properly reconnect client caps after loading inodes

Commit e43c02d6 "mds: filter out blacklisted clients when importing
caps" makes MDCache::process_imported_caps() ignore clients that are
not in MDCache::rejoin_imported_session_map. The map does not contain
clients from which mds has received reconnect messages. This causes
some client caps (corresponding inodes were not in cache when mds was
in reconnect state) to get dropped.

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
(cherry picked from commit 48f60e7f274de9d76499816a528eff859bb161e3)

Conflicts:
src/mds/MDCache.h: Resolved for rejoin_recovered_client and
rejoin_open_sessions_finish

mds: filter out blacklisted clients when importing caps

The very first step of importing caps is calling
Server::prepare_force_open_sessions(). This patch makes the function
ignore blacklisted clients and return a session map for clients that
are not blacklisted. This patch also modify the codes that actually
do cap imports, make them skip caps for clients that are not in the
session map.

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Fixes: http://tracker.ceph.com/issues/23518
(cherry picked from commit e43c02d6abd065dff413440a0f9c3d3f6653e87b)

Conflicts:
src/mds/MDCache.h: Resolved in rejoin_open_sessions_finish
src/mds/Migrator.cc : Resolved in handle_export_dir
and decode_import_inode_caps
src/mds/Server.cc : Resolved in _rename_prepare_import

mds: don't add blacklisted clients to reconnect gather set

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
(cherry picked from commit 857e3edac5eec82f1d04caec440d3d6e61bbf679)

Conflicts:
src/mds/SessionMap.h: Removed get_client_set

mds: combine MDCache::{cap_exports,cap_export_targets}

this change saves a map lookup

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
(cherry picked from commit ea72863b2b8ab5c387b70687300f6f7cff2019db)

client: avoid freeing inode when it contains TX buffer heads

ObjectCacher::discard_set() prematurely delete TX buffer heads. But
the pending writebacks still pin parent objects of these buffer heads.
Assertion "oset.objects.empty()" gets triggered if inode with pending
writebacks get freed.

Fixes:http://tracker.ceph.com/issues/23837
Signed-off-by: Guan yunfei <yunfei.guan@xtaotech.com>
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
(cherry picked from commit 8a03757ca0ab493c6c2ea4fa4307e053e8ebc944)

osdc/ObjectCacher: allow discard to complete in-flight writeback

Signed-off-by: Jason Dillaman <dillaman@redhat.com>
(cherry picked from commit feee52d57d6386a2d62580d1b7ca24ee56831b20)

test: Whitelist corrections

Signed-off-by: David Zafman <dzafman@redhat.com>
(cherry picked from commit ee4acb6e1ff7458ceaefdb288cbcb158c6a3bed3)

Add "erasure code profile property .ruleset-failure-domain. is no longer supported" for luminous

Merge pull request #22134 from dzafman/wip-missed-backport

test: Add CACHE_POOL_NO_HIT_SET to whitelist for mon/pool_ops.sh

Reviewed-by: Josh Durgin <jdurgin@redhat.com>

test: Add CACHE_POOL_NO_HIT_SET to whitelist for mon/pool_ops.sh

Ignore
  cluster [WRN] Health check failed: 1 cache pools are missing hit_sets (CACHE_POOL_NO_HIT_SET)

Signed-off-by: David Zafman <dzafman@redhat.com>
(cherry picked from commit 4fad800043d44024a496f78869e9bb02a16af063)

Merge pull request #22044 from dzafman/wip-24045-luminous

luminous: osd: Don't evict even when preemption has restarted with smaller chunk

Reviewed-by: Josh Durgin <jdurgin@redhat.com>

Merge pull request #22131 from ceph/wip-yuriw-clients-fix-luminous

qa/tests: added supported distro

Reviewed-by: Josh Durgin <jdurgin@redhat.com>

Merge pull request #22128 from liewegas/wip-rbd-msgr-luminous

luminous: qa/suites/rbd/basic/msgr-failures: remove many.yaml

Reviewed-by: Jason Dillaman <dillaman@redhat.com>

qa/suites/rbd/basic/msgr-failures: remove many.yaml

Overkill, and triggers some failures, see
http://tracker.ceph.com/issues/23789

Removed in master by 4046f46d0e6a70d860d74945dfb95c2511394640

Fixes: http://tracker.ceph.com/issues/23789
Signed-off-by: Sage Weil <sage@redhat.com>

Merge pull request #21547 from VictorDenisov/backport

luminous: tests: filestore journal replay does not guard omap operations

Reviewed-by: David Zafman <dzafman@redhat.com>

Merge pull request #21515 from tchaikov/wip-luminous-pr-21469

luminous: mon/LogMonitor: do not crash on log sub w/ no messages

Reviewed-by: David Zafman <dzafman@redhat.com>

Merge pull request #21376 from pdvian/wip-23666-luminous

luminous: msg/async/AsyncConnection: Fix FPE in process_connection

Reviewed-by: Kefu Chai <kchai@redhat.com>