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Since we detect already transaction if before starting
to build dm tree - this extra check is a duplicate
that would only capture very tiny 'race' and we later
validate transaction_id with suspended snapshot origin.
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.
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
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.
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.
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.
Since ATM kernel does not support this operation,
disable 'lvrename' of an active vdopool.
As a workaround, user may simply deactivate, rename and activate.
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.
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.
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.
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.
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.
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.
