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Commit Graph

17235 Commits

Author SHA1 Message Date
Zdenek Kabelac
18c74666ee thin: validate thin-pool state before sending messages
Alhtough lvm2 does validation on its side, ensure DM code
is not sending messages to failed thin pool.
2020-09-29 10:43:56 +02:00
Zdenek Kabelac
4de6f58085 thin: use lv_status_thin and lv_status_thin_pool
Introduce structures lv_status_thin_pool and
lv_status_thin  (pair to lv_status_cache, lv_status_vdo)

Convert lv_thin_percent() -> lv_thin_status()
and  lv_thin_pool_percent() + lv_thin_pool_transaction_id() ->
lv_thin_pool_status().

This way a function user can see not only percentages, but also
other important status info about thin-pool.

TODO:
This patch tries to not change too many other things,
but pool_below_threshold() now uses new thin-pool info to return
failure if thin-pool cannot be actually modified.
This should be handle separately in a better way.
2020-09-29 10:43:56 +02:00
Zdenek Kabelac
92c0e8c17f writecache: archive before modification of metadata
Archive before we start to modify metadata.
2020-09-29 10:43:56 +02:00
Zdenek Kabelac
08e838f488 cleanup: avoid unneeded check
Since creation of thin snapshot already makes sure,
the message list is empty, there is no need to check
this again.
2020-09-29 10:43:56 +02:00
Zdenek Kabelac
af5f29c7e2 activation: move locking of critical section
Move begining of 'suspending' critical section closer to _lv_suspend_lv()
for better correctness of error paths.
2020-09-29 10:43:56 +02:00
Zdenek Kabelac
3ed11170da configure: update help
Help shows new defaults.
2020-09-29 10:43:56 +02:00
Zdenek Kabelac
655342427d configure: editline updates
Update configure file.
2020-09-29 10:43:45 +02:00
Bastian Germann
168e2ffbcd lvm: add readline alternative editline
LVM2 is distributed under GPLv2 only. The readline library changed its
license long ago to GPLv3. Given that those licenses are incompatible
and you follow the FSF in their interpretation that dynamically linking
creates a derivative work, distributing LVM2 linked against a current
readline version might be legally problematic.

Add support for the BSD licensed editline library as an alternative for
readline.

Link: https://thrysoee.dk/editline
2020-09-29 10:13:24 +02:00
David Teigland
fb96e9ab21 tests: add case for metadata checksum differences
Cover the case where two copies of metadata have the
same seqno but different checksums.  Also elaborate
on an existing fixme in the code for this case, since
we should be doing something better for this case.

This had been uncovering an issue with reopening
fds in readwrite mode.
2020-09-28 13:25:57 -05:00
David Teigland
df6f16c081 lvpoll: don't use hints
There's a bug when lvpoll attempts to write new hints,
related to the fact that lvpoll does not follow the same
scanning process as standard commands.
Fix by disabling the use of hints in lvpoll.  We may want
to renable hints in lvpoll in a way that they can be used,
if valid, but not updated if they don't exist or are invalid.
2020-09-28 13:25:57 -05:00
David Teigland
da14cf68cb scanning: keep open an lvm device with scanning problem
The command may want to update it.
2020-09-28 13:25:57 -05:00
David Teigland
890c7ef451 devices: fix reopen for unopened device
If there's a request to reopen rw a device that's not
open, then just call the normal open function.
2020-09-28 13:25:57 -05:00
Heinz Mauelshagen
8952dcbff0 Revert "lvconvert: display warning if raid1 LV image count does not change"
This reverts superfluous commit 3c9177fdc0 as
_lv_raid_change_image_count() already checks for non-changed image count.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1872130
2020-09-28 17:14:03 +02:00
Zdenek Kabelac
bbc164991a tests: add small delay
Prevent there is no i.e. udev trying to open our device.
2020-09-25 22:59:35 +02:00
Zdenek Kabelac
a89ac3bf6f tests: also add thick snap of thin volume 2020-09-25 22:59:35 +02:00
Zdenek Kabelac
ccb58c109f tests: check some common errors
Collect some cases users are hitting when working
with thin-pools which has mismatching kernel metadata content with
lvm2 metadata.
2020-09-25 22:59:35 +02:00
Zdenek Kabelac
3e003320a7 tests: vgsplit of vdo volumes 2020-09-25 22:59:35 +02:00
Zdenek Kabelac
e2577c037d makefiles: document supported var in make help 2020-09-25 22:59:35 +02:00
Zdenek Kabelac
e414ebef6e thin: pass through whole code
Instead of early 'return 0' let the whole code finish
in case of an error with syncing.
2020-09-25 22:59:35 +02:00
Zdenek Kabelac
2bfa868f91 device_mapper: enhance error message 2020-09-25 22:59:35 +02:00
Zdenek Kabelac
8b22e38087 thin: improve error message
Add more info, explaing why the suspend of thin snapshot origin was omitted.
2020-09-25 22:59:35 +02:00
Zdenek Kabelac
ef59c83f2d thin: enhance lvcreate error paths
Improve error response and reporting, when creating thin snapshots.
If the thin pool kernel metadata already have device with ID lvm2
tries to create, give more meanigful error message and also properly
restore transaction id to the value known to thin-pool in this case.

Before it's been possible to divert by one from kernel TID value,
and lvm2 stacked delete message for such thin device.
2020-09-25 22:56:40 +02:00
Zdenek Kabelac
e2eb1dc501 thin: no delete message for device_id 0
Since we always use device_id > 0, we could use
device_id == 0 to actually mark thinLV as an
LV we want to remove without delete message.
2020-09-25 22:54:07 +02:00
Zdenek Kabelac
fc9e732811 vgsplit: support for VDO volumes
Enable support and ensure VDO always moves with VDOPOOL.
2020-09-25 22:51:50 +02:00
Zdenek Kabelac
502b895bb4 tests: basic test for vdo on raid LV
Check stacing of VDO on top of raid LV works.
2020-09-23 14:58:24 +02:00
Zdenek Kabelac
39cdc1469d tests: add check for rename of cached vdopool 2020-09-23 14:47:30 +02:00
Zdenek Kabelac
cfc4dd4c7c tests: a bit bigger mirrors
Seems even with throttling we occasinally need slightly more.
2020-09-23 14:47:30 +02:00
Zdenek Kabelac
90c50c1b53 lvconvert: suppport vdo raid conversion also through vpool
User could directly use 'vdopool' LV name for conversion into raid.
(lvconvert --type raid1 vg/vdopool)
2020-09-23 14:47:30 +02:00
Zdenek Kabelac
50a37948b5 vdo: allow passing renamed vdopool name to kernel
Although kernel does not allow to load a new dm table
with renamed vdopool, at least make lvm2 code ready
it it every will get supported.
2020-09-23 13:20:28 +02:00
Zdenek Kabelac
7c19186271 vdo: disable support for online rename of vdopool LV
Since ATM kernel does not support this operation,
disable 'lvrename' of an active vdopool.

As a workaround, user may simply deactivate, rename and activate.
2020-09-23 13:18:23 +02:00
Zdenek Kabelac
3869c9c4f6 tests: use aux wrapper and add more notes
This test seems to be hitting some corner case in handling
out-of-metadata space condintion in thin-pool.

Add few more aid notes and functionality.

Also add missing '|| true' with now direct-IO dd command.
2020-09-22 23:43:26 +02:00
Zdenek Kabelac
e280f56dd3 tests: move function to aux for reuse 2020-09-22 23:43:26 +02:00
Zdenek Kabelac
adead83dc2 tests: update test
Shorten running time of the test.
Fix some issues in invoked resizing script to it returns
correct return code and dmeventd can be a little bit quicker
in this test.
2020-09-22 23:28:43 +02:00
Zdenek Kabelac
cbed63eeb9 tests: check vdopool policy extension
Check pool will grow even with small policy amount.
2020-09-22 23:28:43 +02:00
Zdenek Kabelac
3a3307c0d8 vdo: enhance vdo pool extension
When user tries to extend vdo pool - he needs to go always
at least by 1 full VDO slab  (defined as  vdo_slab_size_mb).

To avoid all trouble around find 'workable' size - lvm2 automatically
increases the passed (or by --use-policies calculated) extension size
(and informs a user about sometimes possibly large increase as slab
size can go upto 32GiB)

With VDO users need to always 'think-big' anyway and expect such
operation to be in GiB domain range.
2020-09-22 23:28:43 +02:00
Zdenek Kabelac
f38b7afd62 vdo: extend vdo segment validation
Try to catch all suspicious VDO segments in metadata early.
2020-09-22 23:25:16 +02:00
Zdenek Kabelac
642ef54399 vdo: correct message about policy extend support
Policy extend is already supported for vdo pools as well,
so correct the error message.
2020-09-22 23:25:16 +02:00
Zdenek Kabelac
e08a0421a3 vdo: drop unnecessary tabulator from metadata output 2020-09-22 23:25:16 +02:00
Zdenek Kabelac
5bc66532c7 activation: use revert_lv on tree suspend failure
When thetable reload fails during suspend() - we were only calling
plain resume() - and this will reload only those devices,
which were left suspend, but will not try to restore
metadata state according to lvm2 reverted metadata.
So if we were reloading device tree - we have restored
only top-level LV and rest of reverted device manipulation
were left alone and possibly mismatched what is in committed
metadata.

FIXME: There are several cases were such revert will likely not work
properly anyway as some operation are currenly handled in single commit,
while they need multiple commits, but it's step towards better correctness.
At least we catch there errors now earlier.
2020-09-22 21:02:14 +02:00
Zdenek Kabelac
bc9bb534ff tests: fix cleanup for unbound variables
When loop can't handle sector-size option - failure caused double fail
for access of unbound variable
Also fix expression for 'rm' and remove loops after loop release.
2020-09-20 00:37:21 +02:00
Zdenek Kabelac
f507a2564c tests: add FIXME case 2020-09-20 00:37:21 +02:00
Zdenek Kabelac
f2878a801c tests: use DIRECT io for zeroing whenver we can
Performance with direct I/O here is noticable better,
so use it instead of buffered write whenever we can.
2020-09-20 00:37:21 +02:00
Zdenek Kabelac
531a475afc tests: use 4K with mkfs.xfs
If the test runs of loop device backend with 512 sectors,
xfs selects this smaller sector size and then data do not fit
(we would need -l9 with most of 'raids').
With 4K sectors data always fits.
2020-09-20 00:37:21 +02:00
Zdenek Kabelac
a1074da20d tests: skip with fail of first prepare_scsi 2020-09-19 23:03:06 +02:00
Zdenek Kabelac
e556c7b7c6 tests: check for cvol
Check for cvol.
Add check for cmeta.
2020-09-19 23:02:17 +02:00
Zdenek Kabelac
6c769eb460 bache: fix error return value
Return 0 as failure (as checked for).
Also add INTERNAL_ERROR if  'DI' would be -1.
2020-09-19 23:00:50 +02:00
Zdenek Kabelac
6b168afcad tests: use parametrized function
Shorten and make the test easily readable by moving same code into
function and removed one duplicated test for 512,4096 combination.

Always use scsi_debug - since default ramdisk or loop device backend
is unpredictible.
2020-09-19 17:30:51 +02:00
Zdenek Kabelac
f63aac5309 tests: use zero backend
Since we are not reading read - just use zero device as backend for
test, so we do not eat real disk space.
2020-09-19 17:30:51 +02:00
Zdenek Kabelac
f7c58c636d tests: use faster awk generator
Shortens log length.
2020-09-19 17:30:51 +02:00
Zdenek Kabelac
8e3e2c74ed tests: ensure mnt is defined before trap install 2020-09-19 17:30:51 +02:00