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Commit Graph

4204 Commits

Author SHA1 Message Date
Zdenek Kabelac
77fdc17d70 alloc: improve estimation of sufficient_pes_free
Metadata size was calculated correctly only for raids.

Fixes problem for crash during lvcreate when thin-pool was created
on a VG where remaining free space had the size to only fit a single
metadata LV and not also its _pmspare.

Lvcreate crashed with this assert message:

lvcreate: metadata/pv_map.c:198: consume_pv_area: Assertion `to_go <= pva->count' failed.
Aborted (core dumped)

TODO: there is probably to large overload of several alloc_handle
variables.

Reported-by: Wu Guanghao<wuguanghao3@huawei.com>
Reported-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
2020-09-11 21:51:24 +02:00
Zdenek Kabelac
9f78acfee9 thin: compensate metadata size by extra percent
When using --use-policy for automatic extension of thin-pool,
the extension of thin-pool's metadata itself can actually take
some extra space.
Since I'm not aware of exact compensation formula, add just
1% extra to calculated amount and hope it fits.

Wanted target is to always have usable thin-pool that fits
bellow pool_metadata_min_threshold().
2020-09-11 21:42:37 +02:00
Zdenek Kabelac
e7f5acdfa6 lvextend: improve percentage estimation
Correcting rounding rules for percentage evaluation.

Validate supported range of percentage.
(although ranges are already validated earlier on code path)
2020-09-10 23:54:31 +02:00
Zdenek Kabelac
6d392776b0 configure: compile with vdo and writecache by default
Enable compilation of vdo and writecache support as internaly
supported segment types by default.

For disabling use:

--with-vdo=none
--with-writcache=none
2020-09-10 23:54:10 +02:00
Zdenek Kabelac
0210c7076d man: correcting vdo issues
Fixing reported bugs within provided examples - so examples
can be used via cut&paste.
2020-09-09 15:16:34 +02:00
Zdenek Kabelac
af33a00847 Revert "raid: add _rimage and _rmeta as origin_only"
This reverts commit 3388e19489.
More thinking needed.
2020-09-09 00:58:52 +02:00
Zdenek Kabelac
a8ea1817ab Revert "raid: do not enforce flushing of raids when it is not required"
This reverts commit ce5ea07411.
More thinking needed.
2020-09-09 00:58:32 +02:00
Zdenek Kabelac
ce5ea07411 raid: do not enforce flushing of raids when it is not required
This is probably somewhat experimantal patch - but when i.e. raid device
is just extend, there should not be a technical need for flush,
unless the target would stricly need it.  It should allow faster
processing of lvm command not being blocked by possibly longer flush.
2020-09-08 21:23:03 +02:00
Zdenek Kabelac
3388e19489 raid: add _rimage and _rmeta as origin_only
Since we do not support rimage & rmeta for snapshots - we can
avoid quering for -cow devices and add them as origin_only -
since their snapshots (-cow) could have never existed.
This redumes several ioctl operation during table preloading.
2020-09-08 21:23:03 +02:00
Zdenek Kabelac
fd96f1014b gcc: zero-sized array to fexlible array C99
Switch remaining zero sized struct to flexible arrays to be C99
complient.

These simple rules should apply:

- The incomplete array type must be the last element within the structure.
- There cannot be an array of structures that contain a flexible array member.
- Structures that contain a flexible array member cannot be used as a member of another structure.
- The structure must contain at least one named member in addition to the flexible array member.

Although some of the code pieces should be still improved.
2020-09-01 17:57:50 +02:00
Zdenek Kabelac
ef389603dd cachevol: correcting 64b math
Widen to 64bit for correct 64b multiplication math.
2020-09-01 17:50:48 +02:00
Zdenek Kabelac
f0614e7cf0 WHATS_NEW: update 2020-08-28 21:43:03 +02:00
Zdenek Kabelac
46d15b5e4d wipe_lv: close devices on error path
Device was kept open preventing its deactivated and removed
on error path.
2020-08-19 15:09:09 +02:00
Zdenek Kabelac
3e9664baca man: vdo improvals
Add some more notes about discard.
Correct enumeration.
2020-08-19 15:09:09 +02:00
Marian Csontos
231cdd0efb post-release 2020-08-09 16:17:15 +02:00
Marian Csontos
4d9f0606be pre-release 2020-08-09 16:17:15 +02:00
Marian Csontos
c1d136fea3 WHATS_NEW 2020-08-09 16:17:15 +02:00
Tony Asleson
4f44841045 WHATS_NEW: Add writecache lvmdbusd 2020-08-06 15:42:49 -05:00
Heinz Mauelshagen
8f421bdd7a lvconvert: preset raid1 in case of striped conversions
Fixed invoking "lvconvert -m+1 $StripedLV" to cause errors
(preset raid conversion implied by '-m').

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1781406
2020-07-13 19:07:26 +02:00
Heinz Mauelshagen
286a793c12 lvconvert: fix conversion to 'mirrored' mirror log with larger regionsize
merge.c:_check_lv_segment() was checking regionsize vs. mirrored LV size on
any 'mirror/raid1/raid10' segment type including type 'mirrored' mirror logs.

Avoid the check only for 'mirrored' mirror logs to allow conversion from log
type 'disk' with regionsize > mirror log SubLV size.

As we disabled support for 'mirrored' mirror logs with
commit e82303fd6a which still conditionally
allows to enable it via global/support_mirrored_mirror_logs=1,
patch is mandatory for all distributions.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1712983
2020-07-09 14:39:50 +02:00
Zdenek Kabelac
bc39d5bec6 pool: zero metadata
To avoid polution of metadata with some 'garbage' content or eventualy
some leak of stale data in case user want to upload metadata somewhere,
ensure upon allocation the metadata device is fully zeroed.

Behaviour may slow down allocation of thin-pool or cache-pool a bit
so the old behaviour can be restored with lvm.conf setting:
allocation/zero_metadata=0

TODO: add zeroing for extension of metadata volume.
2020-06-24 15:01:03 +02:00
Zdenek Kabelac
edbc5a62b2 wipe_lv: make error a fatal event
Failure in wiping/zeroing stop the command.
If user wants to avoid command abortion he should use -Zn or -Wn
to avoid wiping.

Note: there is no easy way to distinguish which kind of failure has
happend - so it's safe to not proceed any futher.
2020-06-24 15:01:03 +02:00
Zdenek Kabelac
6eb9eba59b bcache: support longer writes
When initiated larger write request, it may have happened, bcache
got out of free chunks - fix the loop, that is supposed to wait
until next free chunk becomes avain available.
2020-06-24 15:01:03 +02:00
David Teigland
211eaa284c WHATS_NEW: integrity with raid 2020-04-15 12:10:39 -05:00
Zdenek Kabelac
e10f20bc23 WHATS_NEWS: update 2020-04-08 15:37:24 +02:00
Marian Csontos
06cbe3cfc6 post-release 2020-03-26 12:22:09 +01:00
Marian Csontos
e1c2b41265 pre-release 2020-03-26 12:21:16 +01:00
Zdenek Kabelac
9532bb577a tests: validate vdo slab_size
New vdoformat can print this size - so check we pass proper bit count
matching preset value.
2020-02-26 13:29:21 +01:00
Zdenek Kabelac
892a182975 cachevol: stop dm errors with uncaching cache with cachevol
Fix the anoying kernel message reported:
device-mapper: cache: 253:2: metadata operation 'dm_cache_commit' failed: error = -5
which has been reported while cachevol has been removed.
Happened via confusing variable - so switch the variable to commonly user '_size'
which presents a value in sector units and avoid 'scaling' this as extent length
by vg extent size when placing 'error' target on removal path.

Patch shouldn't have impact on actual users data, since at this moment
of removal all date should have been already flushed to origin device.

m
2020-02-11 17:19:57 +01:00
Marian Csontos
25b97e522d post-release 2020-02-11 10:53:01 +01:00
Marian Csontos
b9752d719c pre-release 2020-02-11 10:51:57 +01:00
Zdenek Kabelac
9255c7148a WHATS_NEW: update 2020-02-04 17:22:06 +01:00
Zdenek Kabelac
7404216241 WHATS_NEW: update 2020-01-23 10:32:15 +01:00
Zdenek Kabelac
151bf52649 WHATS_NEW: update 2020-01-13 17:42:53 +01:00
Tony Asleson
dad2660a38 WHATS_NEW: VDO lvmdbusd adds 2020-01-09 13:11:41 -06:00
Marian Csontos
91f91b80f1 post-release 2019-11-30 14:46:56 +01:00
Marian Csontos
3d7f755674 pre-release 2019-11-30 14:45:51 +01:00
Heinz Mauelshagen
29db9c6325 lvcreate: ensure striped raid region size is at least stripe size
The kernel MD runtime requires region size to be larger than stripe size
on striped raid layouts, thus the dm-raid target's constructor rejects
such request.

This causes e.g. an 'lvcreate --type raid10 -i3 -I4096 -R2048 -n lv vg' to fail.

Avoid failing late in the kernel by enforcing region size to be
larger or equal to stripe size.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1698225
2019-11-26 22:31:58 +01:00
Zdenek Kabelac
9cad26be32 WHATS_NEW: update 2019-11-11 22:44:25 +01:00
Zdenek Kabelac
569e328cc0 WHATS_NEW: update 2019-10-31 15:43:02 +01:00
Tony Asleson
8b3cf53e24 Experimental VDO lvmdbusd support 2019-10-30 10:55:06 -05:00
Zdenek Kabelac
6163b733e1 WHATS_NEW 2019-10-26 00:50:23 +02:00
Marian Csontos
c8b01f33a6 post-release 2019-10-23 09:51:55 +02:00
Marian Csontos
b9391b1b9f pre-release 2019-10-23 09:51:55 +02:00
Marian Csontos
3e01ff2783 dm: fix compilation of dmsetup
Fix: 889c88e9da
Use correct enum DM_DEVICE_GET_TARGET_VERSION.
2019-10-22 13:39:45 +02:00
Zdenek Kabelac
dd7629ea09 cache: use _cpool for used cache-pools
When LV gets cached and uses cache-pool - such cache-pool
will now get _cpool suffix automatically.

Thus 'Pool' column for cached LV will now show either _cvol
or _cpool LV.
2019-10-21 15:31:33 +02:00
Zdenek Kabelac
2a08d6d1d4 cachevol: use CVOL UUID for cdata and cmeta layered devices
Since code is using -cdata and -cmeta UUID suffixes, it does not need
any new 'extra' ID to be generated and stored in metadata.

Since introduce of new 'segtype' cache+CACHE_USES_CACHEVOL we can
safely assume 'new' cache with cachevol will now be created
without extra metadata_id and data_id in metadata.

For backward compatibility, code still reads them in case older
version of metadata have them - so it still should be able
to activate such volumes.

Bonus is lowered size of lv structure used to store info about LV
(noticable with big volume groups).
2019-10-17 13:03:49 +02:00
Zdenek Kabelac
2825ad9dd2 cachevol: improve manipulation with dm tree
Enhance activation of cached devices using cachevol.
Correctly instatiace  cachevol -cdata & -cmeta devices with
'-' in name (as they are only layered devices).
Code is also a bit more compacted (although still not ideal,
as the usage of extra UUIDs stored in metadata is troublesome
and will be repaired later).

NOTE: this patch my brink potentially minor incompatiblity for 'runtime' upgrade
2019-10-14 15:17:50 +02:00
Zdenek Kabelac
a454a1b4ea cachevol: put _cvol as protected suffix.
This revert "drop cvol dm uuid suffix for cachevol LVs"
commit 5191057d9d.
Start using -cvol for  DM UUID.
2019-10-14 15:16:05 +02:00
Zdenek Kabelac
8a8e6ebba2 cachevol: rename converted LV to _cvol
When converting existing public LV to internally used
'CacheVol' LV - rename LV to LV_cvol.

When splitting CacheVol, remove _cvol suffix.
2019-10-14 15:15:12 +02:00