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Replaced the confusing device error message "not found (or ignored by
filtering)" by either "not found" or "excluded by a filter".
(Later we should be able to say which filter.)
Left the the liblvm code paths alone.
Fixes the following case with 3PVs and 3 legs "mirror" LV:
# lvcreate -l100%FREE --type mirror -m2 vg3
Insufficient free space for log allocation for logical volume .
Unable to allocate extents for mirror log.
Related: rhbz1269533
Creating striped RaidLVs with lv size not divisible by region size
caused the region size to be adjusted:
# lvcreate --type raid5 -n region_check.32.00m_3 -i 3 -L 1g --nosync -R 32.00m raid_sanity
Using default stripesize 64.00 KiB.
Rounding size 1.00 GiB (256 extents) up to stripe boundary size <1.01 GiB(258 extents).
WARNING: New raid5 won't be synchronised. Don't read what you didn't write!
Using reduced mirror region size of 8.00 MiB
Logical volume region_check.32.00m_3 created.
Fix by not imposing "mirror" constraints on "raid".
Resolves: rhbz1404007
vgmerge suffers from a similar problem to the one fixed in commit
8146548d25 ("vgsplit: Fix intermediate
metadata corruption.")
When merging, splitting or renaming VGs, use a new PV status flag
PV_MOVED_VG to mark the PVs that hold metadata with the old VG name and
use this to provide PV-level granularity instead of incorrectly assuming
all PVs in the VG are the same.
In a shared VG, only allow pvmove with a named LV,
so that only PE's used by the LV will be moved.
The LV is then activated exclusively, ensuring that
the PE's being moved are not used from another host.
Previously, pvmove was mistakenly allowed on a full PV.
This won't work when LVs using that PV are active on
other hosts.
lvm2 warned about zeroing and too big chunksize (>=512KiB), but
only during lvconvert, so lvcreate was creating thin-pools
without any warning about possible slowness of thin provisioning
because of zeroing.
Since _deactivate_and_remove_lvs() is used in more then one place,
move the needed udev synchronization into this function so other
users automatically get correct fs state before next dm manipulation.
Assumption here is that this udev synchronization 'delay' may also
prevent to 'early' table reloads which might cause kernel problems
for md-core - but we may need more generic time-limited reload
frequency for raid devices.
Note: on udev-less system there will be almost no delay.
Commit 34504855a7 introduced
flag LV_RESHAPE_DATA_OFFSET and used it to avoid incompatible
activation on older runtime.
Enhance vg_validate() raid checking functions with checks for it.
In order to reject out of place reshaping with segment data_offset
field on old runtime, add a respective segment type incompatibility
flag causing "+RESHAPE_DATA_OFFSET" to be suffixed to the segment
type name.
When reshape space is allocated anew, an update and reload is needed to
promote the new size to the cluster node with the exclusively active RaidLV
or reloading the RaidLV will fail with a size related error. Additionally,
store "data_offset <sectors>" with the RaidLV in the lvm2 metadata so that
it can be retrieved on cluster nodes.
Process allocation of reshape space on a 2-legged raid4/5 (interim layout
to convert from/to linear via raid1) properly in the cluster.
Resolves: rhbz1461562
Resolves: rhbz1448116
If the activation step in lvcreate fails (e.g. the specified
minor number is already used), then the lvcreate is reverted,
but the LV lock in lvmlockd was not being unlocked or properly
freed.
With commit 41c10034aa we actually
do require LV to be used with _vg_write_lv_suspend_commit_backup().
So write a proper separte single wrapper for write && commit && backup.
Since we discovered status reporting from 'md' goes from large set
of weird states we can't just decided based on this word.
So let it pass for rebuild and idle as well
and check for health devices afterwards.
When raid leg rimage device is marked as 'D'ead by mdcore,
lvm2 was not able to replace such device with allocate policy,
as device has not appared as missing.
Add detection of transiently failing devices.
Basically reverting commit 58a9f88b8c.
We can use origin_only in case we are snapshot's origin,
as we do support this stack.
So when we are 'uncaching' origin+snaps - we do need to reload only
origin and we do not need to play with snaps.
Handle change of 'region size' better and follow also standard rule
if the command can't success (i.e. size is already same) we return
error for all such cases.
Also log_pring more info about adjusted value (just like we
do for rounding)
Also avoid keep pointers on 'display_*' values - they are in
ringbuffer for immediate use - not to be kept across multiple calls
(as they could be already overwritten by later calls) - so dropped
seg_region_size_str
