librbd: remove special case for starting AioCompletion ops

All ops can be immediately started now that flush ops won't
accidentally block themselves.

Signed-off-by: Jason Dillaman <dillaman@redhat.com>
(cherry picked from commit b5fc7ecaf7a3741d227ab5a9108392813dd03495)

librbd: simplify IO flush handling through AsyncOperation

Allow ImageFlushRequest to directly execute a flush call through
AsyncOperation. This will allow the flush to be directly linked
to its preceeding IOs.

Signed-off-by: Jason Dillaman <dillaman@redhat.com>
(cherry picked from commit 09e4127d5df1e2a79f2536dc784ec3730feea9ce)

Merge pull request #27043 from sebastian-philipp/wip-38808-nautilus

nautilus: mgr/orchestrator: Remove "(add|test|remove)_stateful_service_rule"

Reviewed-by: Tim Serong <tserong@suse.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>

Merge pull request #28444 from pdvian/wip-39735-nautilus

nautilus: rgw: multisite: mismatch of bucket creation times from List Buckets

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

Merge pull request #28537 from smithfarm/wip-39740-nautilus

nautilus: rgw: swift object expiry fails when a bucket reshards

Reviewed-by: Abhishek Lekshmanan <abhishek.lekshmanan@gmail.com>
Reviewed-by: Yuri Weinstein <yweinste@redhat.com>

Merge pull request #28538 from smithfarm/wip-39745-nautilus

nautilus: rgw: fix default_placement containing "/" when storage_class is standard

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

Merge pull request #28723 from yuriw/wip-yuriw-40452-nautilus

qa/tests: added `bluestore_warn_on_legacy_statfs: false` setting

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

qa/tests: added `bluestore_warn_on_legacy_statfs: false` setting

Fixes: http://tracker.ceph.com/issues/40467
Signed-off-by: Yuri Weinstein <yweinste@redhat.com>

Merge pull request #28584 from rhcs-dashboard/nautilus-object-chart

nautilus: mgr/dashboard: show degraded/misplaced/unfound objects.

Reviewed-by: Lenz Grimmer <lgrimmer@suse.com>
Reviewed-by: Laura Paduano <lpaduano@suse.com>

Merge pull request #28635 from b-ranto/wip-nautilus-dashboard-push

nautilus: mgr/dashboard: Push Grafana dashboards on startup

Reviewed-by: Ernesto Puerta <epuertat@redhat.com>

Merge pull request #28698 from cbodley/wip-qa-rgw-swift-skip-client-nautilus

nautilus: qa/rgw: fix swift warning message

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

Merge pull request #28661 from yuriw/wip-yuriw-40452-nautilus

qa/tests: added ragweed coverage to stress-split* upgrade suites

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

qa/rgw: fix swift warning message

  File "/home/teuthworker/src/github.com_ceph_ceph_master/qa/tasks/swift.py", line 245, in task
    log.warning('Swift tests cannot run on rhel 7.6+, skipping client {client}'.format(client))
KeyError: 'client'

Signed-off-by: Casey Bodley <cbodley@redhat.com>
(cherry picked from commit 9b8be0584dee616af9df01b9622bf53dfde00fad)

Merge pull request #28681 from batrick/shell-py3-fixes

nautilus: cephfs-shell: misc. cephfs-shell backports

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>
Reviewed-by: Varsha Rao <varao@redhat.com>

cephfs-shell: use consistent naming for paths

And some small changes to make some commands take variable arguments and fix
defaults.

Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
(cherry picked from commit b2e8a02f5953fac5722a25f24783b33de502c013)

cephfs-shell: remove unnecessary instances of to_bytes

cephfs binding already automatically converts paths and some arguments to
bytes.

Fixes: http://tracker.ceph.com/issues/40455
Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
(cherry picked from commit ba9f0eefa5466fd0e4bcac03582e8a538a897c26)

cephfs-shell: refactor list_items

Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
(cherry picked from commit 2a32752981235989bd3ef7158664fb7e77d7f093)

pybind/cephfs: improve user-friendliness of DirResult

Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
(cherry picked from commit dff5b1a5d09bf8481cb4e2a0cd0bbbd44b8f20cf)

pybind/cephfs: avoid unicode check

py3 does not have the unicode built-in. Instead, simply try to do the encoding
and catch failures appropriately. If it quacks like a duck...

(Note that cython apparently cheats and allows the unicode check but this is
simpler.)

Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
(cherry picked from commit 9bc49fefcd81fbb1c0ce62b1b81f3be420e81663)

cephfs-shell: Remove unnecessary empty line

This patch fixes flake8 too many blank lines error.

Fixes: https://tracker.ceph.com/issues/40191
Signed-off-by: Varsha Rao <varao@redhat.com>
(cherry picked from commit d141adac9ae8b704884d160b5458a431321a0b2a)

cephfs-shell: Fix flake8 bare 'except' warnings

Instead of bare 'except', catch OSError and libcephfs exceptions.

Fixes: https://tracker.ceph.com/issues/40191
Signed-off-by: Varsha Rao <varao@redhat.com>
(cherry picked from commit d063e8b1e05a23f3f15fe2080ec57fe6242e64f4)

cephfs-shell: Remove unused variable 'e'

Fixes: https://tracker.ceph.com/issues/40191
Signed-off-by: Varsha Rao <varao@redhat.com>
(cherry picked from commit 6a0a5ed83d6d3e2bb9977bda2c773d5d5b6accf7)

cephfs-shell: Fix flake8 use != to compare str literals warning

Fixes: https://tracker.ceph.com/issues/40191
Signed-off-by: Varsha Rao <varao@redhat.com>
(cherry picked from commit db7b9306fb94efbe0c12283c614554727fbf6f1e)

cephfs-shell: Fixe flake8 line too long error

Break the line into multiple lines and add new variable wherever necessary, to
fix the line too long error.

Fixes: https://tracker.ceph.com/issues/40191
Signed-off-by: Varsha Rao <varao@redhat.com>
(cherry picked from commit e41d467d4f482665fb09bb00edde7c03d6376b82)

cephfs-shell: Remove whitespace after '('

This patch fixes flake8 whitespace error.

Fixes: https://tracker.ceph.com/issues/39717
Signed-off-by: Varsha Rao <varao@redhat.com>
(cherry picked from commit 2136530dab1d8894c10ec63bb84752604cf6065f)

cephfs-shell: Remove unused 'flag' variable

This patch fixes flake8 unused local variable error.

Fixes: https://tracker.ceph.com/issues/39717
Signed-off-by: Varsha Rao <varao@redhat.com>
(cherry picked from commit 20c31ea2397545790154140822cc2668d85b913f)

cephfs-shell: Fix flake8 invalid escape sequence warning

Backslash-character pair is not a valid escape sequence, since Python 3.6
version. Prefixing character 'r' to the escape sequence, fixes the warning.

Fixes: https://tracker.ceph.com/issues/39717
Signed-off-by: Varsha Rao <varao@redhat.com>
(cherry picked from commit c7d217c2afcb9cdc64356f6a6b1f8f701c7814d9)

cephfs-shell: Remove unnecessary empty lines

This patch fixes flake8 too many blank lines error.

Fixes: https://tracker.ceph.com/issues/39717
Signed-off-by: Varsha Rao <varao@redhat.com>
(cherry picked from commit f322affda07e41996189b43ec227856076d39d26)

cephfs-shell: Fix flake8 bare 'except' warnings

Instead of bare 'except', catch just libcephfs exceptions.

Fixes: https://tracker.ceph.com/issues/39717
Signed-off-by: Varsha Rao <varao@redhat.com>
(cherry picked from commit e6b6cf4ba5814e80da22b3b95b3686831202e483)

qa: elide python version config

This test doesn't actually use the config and cephfs-shell is py3 only.

Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
(cherry picked from commit ff1f04f4d538d3c713d34fa4a77c4ff3eb58e01d)

cephfs-shell: assert python3

There's little reason to support this new tool with python2.

Fixes: http://tracker.ceph.com/issues/40418
Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
(cherry picked from commit de429c48c45add1fcf16b1e019e9598af48bb8f5)

cephfs-shell: Catch OSError exceptions in lcd

This patch adds try-except statement to catch the OSError exceptions.

Fixes: http://tracker.ceph.com/issues/40243
Signed-off-by: Varsha Rao <varao@redhat.com>
(cherry picked from commit 4b958532e6c9648b73bdd78e0758ca6ddc4cf344)

cephfs-shell: Fix 'lls' command errors

This patch fixes following:
* Not printing complete path when '..' is passed as argument.
* Printing of path for current working directory.
* No need to set default value for add_argument. As it returns empty list with
  nargs='*'.
* No need to check for absolute path. os.listdir takes both relative and
  absolute path.
* Use try-catch instead of if-else statement to catch exceptions.

Fixes: http://tracker.ceph.com/issues/40244
Signed-off-by: Varsha Rao <varao@redhat.com>
(cherry picked from commit d1ddd4c50f56331c7036964f78d4e399e10431b8)

cephfs-shell: Add stat command

This patch adds stat command to cephfs-shell.

Fixes: https://tracker.ceph.com/issues/38829
Signed-off-by: Varsha Rao <varao@redhat.com>
(cherry picked from commit 07263fe0f2dbefc936a987eb0379221a28eb42e7)

cephfs-shell: add quota management

Quotas can be managed by:
$ quota get dir
$ quota set {--max_files MAX_FILES} {--max_bytes MAX_BYTES} dir

Fixes: http://tracker.ceph.com/issues/39165
Signed-off-by: Milind Changire <mchangir@redhat.com>
(cherry picked from commit d187e9b0a917b828530bda89866d6a4867e9f9ff)

cephfs-shell: fix string decoding for ls command

* fix string decoding for ls command
* fix string decoding for is_dir_exists() and is_file_exists()
* fix minor flake8-3.7 warnings about indentation and line length

Fixes: http://tracker.ceph.com/issues/39404
Signed-off-by: Milind Changire <mchangir@redhat.com>
(cherry picked from commit b9445a496782db73a6ee21d95100dc16069dd986)

qa/tests: added ragweed coverage to stress-split* upgrade suites

added ceph config set global bluestore_warn_on_legacy_statfs fals
chnaged user "foo" to "ragweed" in ragweed.py

Fixes: http://tracker.ceph.com/issues/40452
Fices: http://tracker.ceph.com/issues/40467
Signed-off-by: Yuri Weinstein <yweinste@redhat.com>

Merge pull request #28580 from ukernel/nautilus-40344

nautilus: mds: fix corner case of replaying open sessions

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>

Merge pull request #28582 from pdvian/wip-40040-nautilus

nautilus: mds: avoid sending too many osd requests at once after mds restarts

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>
Reviewed-by: Yan, Zheng <zyan@redhat.com>

Merge pull request #28611 from batrick/i40223

nautilus: mds: reset heartbeat during long-running loops in recovery

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>

Merge pull request #28618 from ukernel/nautilus-40236

nautilus:  mds: fix 'is session in blacklist' check in Server::apply_blacklist()

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>

Merge pull request #28641 from batrick/i39260-2

nautilus: cephfs-shell: Revert "cephfs.pyx: add py3 compatibility"

Reviewed-by: Nathan Cutler <ncutler@suse.com>

Merge pull request #28555 from s0nea/wip-40059-nautilus

nautilus: mgr/dashboard: Add custom dialogue for configuring PG scrub parameters

Reviewed-by: Lenz Grimmer <lgrimmer@suse.com>

Merge pull request #28552 from sebastian-philipp/wip-40037-nautilus

nautilus: dashboard: orchestrator mgr modules assert failure on iscsi service request

Reviewed-by: Sebastian Wagner <sebastian.wagner@suse.com>

Merge pull request #28516 from smithfarm/wip-40301-nautilus

nautilus: build/ops: cmake: set empty-string RPATH for ceph-osd

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

cephfs-shell: Revert "cephfs.pyx: add py3 compatibility"

This reverts commit 5106582fc7edae7f39161cf89e566c020fcfa0ce.

Signed-off-by: Varsha Rao <varao@redhat.com>
(cherry picked from commit 417836de308a8b642fec5f03d819800142155b34)

This revert was missing from #27531

Merge pull request #28233 from pdvian/wip-39670-nautilus

nautilus: mds: output lock state in format dump

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>

Merge pull request #28595 from ajarr/wip-nautilus-refactor-volume-module

nautilus: mgr/volumes: refactor volume module

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>

Merge pull request #28610 from batrick/i40164

nautilus: cephfs: mount: key parsing fail when doing a remount

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>

Merge pull request #28612 from batrick/i40161

nautilus: cephfs: FSAL_CEPH assertion failed in Client::_lookup_name: "parent->is_dir()"

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>

Merge pull request #28613 from batrick/i40220

nautilus: tests: cephfs: TestMisc.test_evict_client fails

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>

Merge pull request #28614 from batrick/i39935

nautilus: tests: cephfs-shell: teuthology tests

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>

Merge pull request #28616 from batrick/i39960

nautilus: cephfs-shell: mkdir error for relative path

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>

Merge pull request #28383 from xiaoxichen/wip-40145-nautilus

nautilus: rgw: fix Multisite sync corruption

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

Merge pull request #28410 from cbodley/wip-40148

nautilus: rgw: fix bucket may redundantly list keys after BI_PREFIX_CHAR

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

Merge pull request #28476 from smithfarm/wip-40192-nautilus

nautilus: Rados.get_fsid() returning bytes in python3

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

Merge pull request #28511 from b-ranto/wip-selinux-rhel8-nautilus

nautilus: selinux: Update the policy for RHEL8

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

Merge pull request #28541 from pdvian/wip-39746-nautilus

nautilus: rgw: beast: multiple v4 and v6 endpoints with the same port will cause failure

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

Merge pull request #28577 from dillaman/wip-40379-nautilus

nautilus: librbd: avoid dereferencing an empty container during deep-copy

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

Merge pull request #28598 from cbodley/wip-40346-nautilus

nautilus: qa: use curl in wait_for_radosgw() in util/rgw.py

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

mgr/dashboard: Push Grafana dashboards on startup

Because we didn't have viable way to populate Grafana dashboards in a
fully containerized context, we needed a different method. This will
work in packaged and containerized deployments.

We provide three methods to push the dashboard JSON files to the Grafana
instance: a command (ceph dashboard update-grafana-dashboards); an API
endpoint (/api/grafana/update_dashboards); and an automatic on-startup
feature that is disabled by default (ceph dashboard
set-grafana-update-dashboards true). The on-startup method will also
retry periodically to avoid racing with the startup of Grafana itself.

Signed-off-by: Zack Cerza <zack@redhat.com>
(cherry picked from commit c0bc7dafa777cfb349f372237ec91c5285dd4df2)

mds: avoid passing null to SessionmMap::hit_session()

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
(cherry picked from commit e3c6a9bba4264963e985b9f8e3371c2757e7803c)

qa/cephfs: add test for blacklisted client eviction

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
(cherry picked from commit 89759654c1efc0a2913286872dca41b2bbffe7ff)

 Conflicts:
qa/tasks/cephfs/cephfs_test_case.py
qa/tasks/cephfs/test_exports.py

mds: fix 'is session in blacklist' check in Server::apply_blacklist()

Blacklist entries are always TYPE_ANY for nautilus+, but client's
entity addr type can be legacy.

Fixes: http://tracker.ceph.com/issues/40061
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
(cherry picked from commit 0d51266c45f4b2a9b0ab6b34b622dc76fbfd4bd2)

 Conflicts:
src/mds/Server.cc

Merge pull request #28604 from cbodley/wip-40402-nautilus

nautilus: qa/rgw: skip swift tests on rhel 7.6+

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

qa/rgw: fix import error in tasks/swift.py

> ImportError: No module named packaging

replaces packaging.version.Version with distutils.version.LooseVersion

Signed-off-by: Casey Bodley <cbodley@redhat.com>
(cherry picked from commit 2dd5574cf9a5a80cc40a365675bb1e33a32c9f41)

cephfs-shell: Fix mkdir relative path error

Directory is not created for relative path. This patch fixes it.

Fixes: https://tracker.ceph.com/issues/39507
Signed-off-by: Varsha Rao <varao@redhat.com>
(cherry picked from commit e89287673c3470b00125682b1d0bdab6e0e08ef4)

cephfs-shell: teuthology tests

* mkdir
* get
* put

Fixes: http://tracker.ceph.com/issues/39526
Signed-off-by: Milind Changire <mchangir@redhat.com>
(cherry picked from commit 73ada8d1d92ed2cc8b48d07f05d1dabb6710452e)

qa/cephfs: fix test_evict_client

explictly kill stale session, otherwise session count check is racy.

Fixes: https://tracker.ceph.com/issues/40173
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
(cherry picked from commit 4fd0202fdf0410d788402f6eefda44b79cf0a643)

client: clean up error checking and return of _lookup_parent

ll_lookup_inode can end up getting back 0 from _lookup_parent,
without zeroing out the parent pointer, which ends up remaining
uninitialized.

Fix this by moving most of the sanity checks in _lookup_parent
into ll_lookup_inode, and only have it issue the call to the MDS.

This also allows us to do the checks in a more sane order.

Fixes: http://tracker.ceph.com/issues/40085
Signed-off-by: Jeff Layton <jlayton@redhat.com>
(cherry picked from commit 3ade7c046c6c5eaf20517d0713a805a681128831)

client: drop Client::lookup_parent

Nothing calls this method.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
(cherry picked from commit 5c419b64755c200d43b60d1b435f09a4e5b17f7e)

mds: reset heartbeat inside big loop

Fixes: https://tracker.ceph.com/issues/40171
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
(cherry picked from commit d90403c8df90ed06564c84bb2dd38c16861cf34e)

Conflicts:
src/mds/MDCache.cc

common/secret.c: fix key parsing when doing a remount

When doing a CephFS remount (-o remount) the secret is parsed from procfs
and we get '<hidden>' as a result and the mount will fail with:

  secret is not valid base64: Invalid argument.
  adding ceph secret key to kernel failed: Invalid argument.

As the kernel already have the key, we simply need to use it.

Fixes: https://tracker.ceph.com/issues/39951
Signed-off-by: Luis Henriques <lhenriques@suse.com>
(cherry picked from commit f44516bcde8d48ef5dca4f92017d1e241eb8e26e)

Merge pull request #28562 from batrick/i40373

nautilus: qa: stop testing simple messenger in fs qa

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

Merge pull request #28563 from batrick/i40374

nautilus: qa: ignore legacy bluestore stats errors

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

qa/rgw: skip swift tests on rhel 7.6+

swift bootstrap fails because libev-devel is not available

Fixes: http://tracker.ceph.com/issues/40304
Signed-off-by: Casey Bodley <cbodley@redhat.com>
(cherry picked from commit c62f89fd752c97e331c09557147791cedf50cd2d)

Merge pull request #27532 from dillaman/wip-rbd-ncurses-nautilus

nautilus: cmake: Fix build against ncurses with separate libtinfo

Reviewed-by: Kefu Chai <kchai@redhat.com>
Reviewed-by: Mykola Golub <mgolub@mirantis.com>

Merge pull request #27915 from pdvian/wip-39241-nautilus

nautilus: msg/async: connection race + winner fault can leave connection stuck at replacing foreve

Reviewed-by: Jason Dillaman <dillaman@redhat.com>
Reviewed-by: xie xingguo <xie.xingguo@zte.com.cn>

Merge pull request #28127 from dillaman/wip-39739-nautilus

nautilus: librbd: fix issues with object-map/fast-diff feature interlock

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

Merge pull request #28131 from dillaman/wip-39573-nautilus

nautilus: common: Clang requires a default constructor, but it can be empty

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

Merge pull request #28485 from trociny/wip-40122-nautilus

nautilus: pybind/mgr: fix format for rbd-mirror prometheus metrics

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

qa: use curl in wait_for_radosgw() in util/rgw.py

Signed-off-by: Ali Maredia <amaredia@redhat.com>
(cherry picked from commit 9c6afa3fb570629a57612f250a6a4890a65cbc6e)

mgr / volumes: improve error handling

This cleans up lots of return-fu statements and make the source
look much more pythonic. Functions should raise an instance of
VolumeException() class wherever necessary (error handling).

Fixes: http://tracker.ceph.com/issues/39969
Signed-off-by: Venky Shankar <vshankar@redhat.com>
(cherry picked from commit 241c9cea7c1e489461c17fc43eb77ba28a4fd2c0)

py / cephfs: invoke base class Error::__init__() from OSError::__init__()

This will allow access to `args` when catching `Error`.

Signed-off-by: Venky Shankar <vshankar@redhat.com>
(cherry picked from commit aad7906fb712d3f15829a8b49f064b616475e72a)

mgr / volumes: carve out subvolume operations as a separate class

Move (and refactor) subvolume specific operations from main module
source to SubVolume class in a new subvolume source. Also, provide
hooks in VolumeClient to forward subvolume specific opertaions to
this class.

Signed-off-by: Venky Shankar <vshankar@redhat.com>
(cherry picked from commit 8d29816f0f3db6c7d287bbb7469db77c9de701d1)

mgr / volumes: introduce subvolume specification class

Specifications class that represents a unique subvolume
identified by (subvolume-id, group-id) tuple. Provide
heleper functions for fetching  various subvolume specific
attributes such as subvolume path, group path etc.

Signed-off-by: Venky Shankar <vshankar@redhat.com>
(cherry picked from commit 021b80495da2740fedf45793e17a258f3ebf164c)

mgr / volumes: carve of volume as a separate class

Move volume operations (create/delete) from main module source
to VolumeClient class in new volume source.

Signed-off-by: Venky Shankar <vshankar@redhat.com>
(cherry picked from commit b3dc3b2dba794e942219c385f80632b449ba5751)

mgr/dashboard: show degraded/misplaced/unfound objects.

* Landing Page 'Objects' card now is a chart that shows more info about objects.
* Fix: Dimless/dimlessBinary pipe applied to amount displayed in
  chart slice tooltip body (if shown).
* Refactoring: simplified way of setting chart initial config
  via 'config' @Input; erased redundant @Inputs.
  Updated chart component default config (for the sake of simplicity).

Fixes: https://tracker.ceph.com/issues/39613
Signed-off-by: Alfonso Martínez <almartin@redhat.com>
(cherry picked from commit 439fec829fc6290b7f67f725228a974c0728b255)

mds: avoid sending too many osd requests at once after mds restarts
Fixes: http://tracker.ceph.com/issues/40028
Signed-off-by: simon gao <simon29rock@gmail.com>
(cherry picked from commit 78484352f553d6b67f7d5c82384a186455f05537)

mds: ignore sessionmap version mismatch if mds_wipe_sessions is set

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
(cherry picked from commit cd6f65b404c80c8fcf4f8579b34ae1ddea001751)

mds: fix corner case of replaying open sessions

Marking a session dirty may flush all existing dirty sessions. MDS
calls Server::finish_force_open_sessions() for log event that opens
multiple sessions. The function marks sessions dirty one by one. So
sessions opened by a log event may get flushed partially.

When replaying a log event that opens multiple sessions, mds need to
check if some of these sessions have already been flushed.

Fixes: https://tracker.ceph.com/issues/40211
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
(cherry picked from commit 8e0ddc9808bf2d21180f9f4f78eafafdb4670262)

librbd: avoid dereferencing an empty container during deep-copy

While updating the image copy progress, a 'while' loop will pop the
last item from the queue and then deference the empty queue.

Fixes: http://tracker.ceph.com/issues/40368
Signed-off-by: Jason Dillaman <dillaman@redhat.com>
(cherry picked from commit 0f491cbb96ec55c68a627de71ed6ccd781a46dcc)

Merge pull request #28429 from ajarr/wip-fs-subvolumes-nautilus

nautilus: mgr/volumes: add CephFS subvolumes library

Merge pull request #28333 from pdvian/wip-39680-nautilus

nautilus: cephfs: pybind: added lseek()

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>

Merge pull request #28499 from smithfarm/wip-40169-nautilus

nautilus: cephfs: client: fix "ceph.snap.btime" vxattr value

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>
Reviewed-by: David Disseldorp <ddiss@suse.de>

Merge pull request #28500 from smithfarm/wip-40167-nautilus

nautilus: cephfs: client: ceph.dir.rctime xattr value incorrectly prefixes 09 to the nanoseconds component

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>
Reviewed-by: David Disseldorp <ddiss@suse.de>

Merge pull request #28375 from pdvian/wip-39686-nautilus

nautilus: client: fix fuse client hang because its bad session PipeConnection

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>

Merge pull request #28394 from pdvian/wip-39690-nautilus

nautilus: mds: check dir fragment to split dir if mkdir makes it oversized.

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>

qa: ignore legacy bluestore stats errors

Partial-backport: 66f18ecd09973ceab4ff9ff177e69d9c61a30bf2
Fixes: http://tracker.ceph.com/issues/40374
Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>

qa: stop testing simple messenger in fs qa

897a1f738566263fde42832dc23f34a99a554b62 was incomplete.

Fixes: http://tracker.ceph.com/issues/40373
Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>