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The file block count stored in the filemap_monitor was lazily
initialised at the time of the first check. This causes problems
in the case that the file has been truncated between this time and
the time the daemon started: the initial block count and current
block count match and the daemon fails to detect a change.
Separate the setting of the block count from the check and make a
call to update the value at the start of _dmfilemapd().
It's not an error to attempt to update regions from an fd that has
been truncated (or otherwise no longer has any allocated extents):
in this case, the call should remove all regions corresponding to
the group, and return an empty region table.
For proper usage of Cache kernel metadata format V2,
new cache_check tool is basically mandatory.
Print warning during configure time about this problem.
Prohibit activation of reshaping RaidLVs on incompatible
lvm2 runtime by storing e.g. 'raid5+RESHAPE' segment type
strings in the lvm2 metadata. Incompatible runtime not
supporting reshaping won't be able to activate those thus
avoiding potential data corruption.
Any new non-reshaping lvconvert command will reset the
segment type string from 'raid5+RESHAPE' to 'raid5'.
See commits
0299a7af1e and
4141409eb0
for segtype flag support.
When old snapshot is merged, lvm2 still can report some data about
merged 'snapshot' - i.e. it occupied space in VG.
This patch fixes regression from commit:
6fd20be629
and resolved RHBZ: 1460161
Avoid reporting 'checking result' as maybe - it should
clearly tell 'yes' or 'no'.
Just shuffle printed message to the place, where we
already know the 'maybe' answer.
So instead of printing 'unclear':
checking whether to enable libblkid detection of signatures when wiping... maybe
checking for BLKID... yes
checking whether to use udev-systemd protocol for jobs in background... maybe
checking for SYSTEMD... yes
show this:
checking for BLKID... yes
checking whether to enable libblkid detection of signatures when wiping... yes
checking for SYSTEMD... yes
checking whether to use udev-systemd protocol for jobs in background... yes
Code path missed validation of lvcreate --cachepool argument.
If the non cache-pool LV was passed in, code has still continued
further work and failed later on internal error. Validate this
condition at right place now.
When a combination of thin-pool chunk size and thin-pool data size
goes beyond addressable limit, such volume creation is directly
prohibited.
Maximum usable thin-pool size is calculated with use of maximal support
metadata size (even when it's created smaller) and given chunk-size.
If the value data size is found to be too big, the command reports
error and operation fails.
Previously thin-pool was created however lots of thin-pool data LV was
not usable and this space in VG has been wasted.
Only support RAID conversions on active LVs.
If we'd accept e.g. upconverting linear -> raid1 on inactive
linear LVs, any LV flags passed to the kernel aren't properly
cleared thus errouneously passing them on every activation.
Add respective check to lv_raid_change_image_count() and
move existing one in lv_raid_convert() for better messages.
If during the process of fetching current lvm state we experience an
exception we fail to call set_result on the queued_requests we were
processing. When this happens those threads block forever which causes
the service to stall infinitely. Only clear the queued_requests after
we have called set_result.
We were not adding background tasks to flight recorder. Add the meta
data to the flight recorder when we start the command and update the meta
data when the command is finished. Locking was added to meta data to
prevent concurrent update and returning string representation as these can
happen in two different threads.
vgreduce previously allowed --all and --removemissing together even though
it only actual did the remove missing. The lvm dbus daemon was passing
--all anytime there was no entries in pv_object_paths. This change supplies
--all if and only if we are not removing missing and the pv_object_paths
is empty.
Vgreduce has and continues to enforce the invalid combination of supplying a
device list when you specify --all or --removemissing so we do not need
to check for that invalid combination explicitly in the lvm dbus service as
it's already covered.
Ref: https://bugzilla.redhat.com/show_bug.cgi?id=1455471
Warn about a PV that has the in-use flag set, but appears in
the orphan VG (no VG was found referencing it.)
There are a number of conditions that could lead to this:
. The PV was created with no mdas and is used in a VG with
other PVs (with metadata) that have not yet appeared on
the system. So, no VG metadata is found by lvm which
references the in-use PV with no mdas.
. vgremove could have failed after clearing mdas but
before clearing the in-use flag. In this case, the
in-use flag needs to be manually cleared on the PV.
. The PV may have damanged/unrecognized VG metadata
that lvm could not read.
. The PV may have no mdas, and the PVs with the metadata
may have damaged/unrecognized metadata.
A PV holding VG metadata that lvm can't understand
(e.g. damaged, checksum error, unrecognized flag)
will appear as an in-use orphan, and will be cleared
by this repair code. Disable this repair until the
code can keep track of these problematic PVs, and
distinguish them from actual in-use orphans.
Reject any stripe adding/removing reshape on raid4/5/6/10 because
of related MD kernel deadlock on single core systems until
we get a proper fix in MD.
Related: rhbz1443999
Since lvmetad is using 'MISSING' in status for 'another' purpose,
we need to support ATM also flag get from this place.
Until fixed better - we accept both flags - alhough lvm2 will
only print in flags.
Switch METADATA_FORMAT flag usage to be stored via segtype
instead of 'status' flag which appeared to cause major
incompatibility troubles.
For backward compatiblity segtype flags are still accepted also
via 'status' bits which were used from version 2.02.169 so metadata
saved by this newer lvm2 version should still work nicely, although
new save version will no longer work on this older lvm2 version.
Allow storing LV status bits with segment type name field.
Switching to this since this field has better support for compatibility
with older version of lvm2 - since such unknown segtype will not cause
complete invisiblity of metadata from older lvm2 code - just the
particular LV will become unusable with unknown type of segment.
- Must reread all objects as PVs might be removed.
- Never consider testsuite provided PVs nested, or tearDown fails to
remove any outstanding VGs on them.
