David Teigland [Wed, 13 May 2020 20:47:20 +0000 (15:47 -0500)]
devs: add some checks for a dev with no path name
It's possible for a dev-cache entry to remain after all
paths for it have been removed, and other parts of the
code expect that a dev always has a name. A better fix
may be to remove a device from dev-cache after all paths
to it have been removed.
David Teigland [Mon, 11 May 2020 18:08:39 +0000 (13:08 -0500)]
lvmlockd: use 4K sector size when any dev is 4K
When either logical block size or physical block size is 4K,
then lvmlockd creates sanlock leases based on 4K sectors,
but the lvm client side would create the internal lvmlock LV
based on the first logical block size it saw in the VG,
which could be 512. This could cause the lvmlock LV to be
too small to hold all the sanlock leases. Make the lvm client
side use the same sizing logic as lvmlockd.
David Teigland [Mon, 4 May 2020 18:35:03 +0000 (13:35 -0500)]
lvmlockd: replace lock adopt info source
The lock adopt feature was disabled since it had used
lvmetad as a source of info. This replaces the lvmetad
info with a local file and enables the adopt feature again
(enabled with lvmlockd --adopt 1).
Fix scripts/lvmlocks.service.in using nonexistent --lock-opt autowait
The --lock-opt autowait was dropped back in 9ab6bdce01,
and attempting to specify it has quite an opposite effect:
no waiting is done, which makes the unit almost useless.
David Teigland [Wed, 20 Nov 2019 22:07:27 +0000 (16:07 -0600)]
Allow dm-integrity to be used for raid images
dm-integrity stores checksums of the data written to an
LV, and returns an error if data read from the LV does
not match the previously saved checksum. When used on
raid images, dm-raid will correct the error by reading
the block from another image, and the device user sees
no error. The integrity metadata (checksums) are stored
on an internal LV allocated by lvm for each linear image.
The internal LV is allocated on the same PV as the image.
Create a raid LV with an integrity layer over each
raid image (for raid levels 1,4,5,6,10):
lvcreate --type raidN --raidintegrity y [options]
Add an integrity layer to images of an existing raid LV:
lvconvert --raidintegrity y LV
Remove the integrity layer from images of a raid LV:
lvconvert --raidintegrity n LV
Settings
Use --raidintegritymode journal|bitmap (journal is default)
to configure the method used by dm-integrity to ensure
crash consistency.
Initialization
When integrity is added to an LV, the kernel needs to
initialize the integrity metadata/checksums for all blocks
in the LV. The data corruption checking performed by
dm-integrity will only operate on areas of the LV that
are already initialized. The progress of integrity
initialization is reported by the "syncpercent" LV
reporting field (and under the Cpy%Sync lvs column.)
Peter Rajnoha [Thu, 9 Apr 2020 13:23:58 +0000 (15:23 +0200)]
blkdeactivate: add support for VDO in blkdeactivate script
Make it possible to tear down VDO volumes with blkdeactivate if VDO is
part of a device stack (and if VDO binary is installed). Also, support
optional -o|--vdooptions configfile=file.
lvconvert: no validation for thin-pools not used by lvm2
lvm2 supports thin-pool to be later used by other tools doing
virtual volumes themself (i.e. docker) - in this case we
shall not validate transaction Id - is this is used by
other tools and lvm2 keeps value 0 - so the transationId
validation need to be skipped in this case.
Zdenek Kabelac [Wed, 11 Mar 2020 11:57:44 +0000 (12:57 +0100)]
vdo: make vdopool wrapping device is read-only
When vdopool is activated standalone - we use a wrapping linear device
to hold actual vdo device active - for this we can set-up read-only
device to ensure there cannot be made write through this device to
actual pool device.
David Teigland [Mon, 9 Mar 2020 17:25:26 +0000 (12:25 -0500)]
lvmlockd: use transient LV lock when creating snapshot
Creating a snapshot was using a persistent LV lock
on the origin, so if the origin LV was inactive at
the time of the snapshot the LV lock would remain.
(Running lvchange -an on the inactive LV would
clear the LV lock.) Use a transient LV lock so it
will be dropped if it was not locked previously.
David Teigland [Mon, 9 Mar 2020 16:18:10 +0000 (11:18 -0500)]
writecache: require inactive LV to attach
Prevent attaching writecache to an active LV until
we can determine the block size of the fs on the LV,
and use that to enforce an appropriate writecache
block size. Changing the block size under a mounted
fs can cause panic/corruption.
Zdenek Kabelac [Wed, 4 Mar 2020 14:56:09 +0000 (15:56 +0100)]
dmeventd: enhance time waiting loop
dmeventd is 'scanning' statuses in loop (most usually in 10sec
intervals) - and meanwhile it sleeps within:
pthread_cond_timedwait()
However this function call tends to wakeup sometimes a short amount of
time sooner - and our code still believe the 'right time' has not yet
arrived and basically for a moment 'busy-looped' on calling this
function - so for systems with 'clock_gettime()' present we obtain
time and we go 10ms to the future second - this avoids unneeded
repeated invocation of our time scheduling loop.
Zdenek Kabelac [Fri, 21 Feb 2020 10:59:29 +0000 (11:59 +0100)]
vdo: fix slab size bits calculation
When formating VDO volume, the calculated amound of bits
for 'vdoformat --slab-bits' parameter was shifted by 2 bits
(calculated size was making 2MiB vdo_slab_size_mb value appear like if
user would be specifying only 512KiB)
Fixed by properly converting internal size_mb value to KiB.
Zdenek Kabelac [Tue, 11 Feb 2020 16:11:39 +0000 (17:11 +0100)]
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.
Zdenek Kabelac [Mon, 10 Feb 2020 14:41:30 +0000 (15:41 +0100)]
vdo: fix vdoformat when -V is specified
The previous patch improved read of pipe when lvm2 was looking
for default logical size, but we clearly must read pipe also
for -V case, when the logical size is already defined.
Zdenek Kabelac [Thu, 30 Jan 2020 14:54:19 +0000 (15:54 +0100)]
lv_manip: add extra check for existin origin_lv
clang: it's supposedly impossible path to hit, as we should always
have origin_lv defined when running this path, but adding protection
isn't a big issue to make this obvious to analyzer.
Zdenek Kabelac [Wed, 29 Jan 2020 15:41:28 +0000 (16:41 +0100)]
dmeventd: nicer error path for reading pipe
When _daemon_read()/_client_read() fails during the read,
ensure memory allocated withing function is also release here
(so caller does not need to care). Also improve code readbility a bit
a for same functionality use more similar code.
Zdenek Kabelac [Thu, 30 Jan 2020 11:43:53 +0000 (12:43 +0100)]
cov: widen before calculating min_chunk_size
Although we expect min_chunk_size to be 32bit value, for
large size of caches it might be useful to do calcs 64bit.
So to avoid doing shift as signed 32bit - use unsigned 64bit
from the start.
Heming Zhao [Wed, 15 Jan 2020 02:44:30 +0000 (02:44 +0000)]
add suggestion message for mirror LVs
Currently the error messages are not clear. This very easy to
guide user to execute "--removemissing --force", it is dangerous
and will make the LVs to be destroied.