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There is no benefit in waking-up all the waiters
when there is no actual change in lock state.
This avoid some unnecessarily ping-pong effects like:
Resource V_LVMTEST15724vg retrying lock in mode:WRITE...
Resource V_LVMTEST15724vg already locked lockid=40, mode:WRITE
Resource V_LVMTEST15724vg retrying lock in mode:WRITE...
Resource V_LVMTEST15724vg already locked lockid=40, mode:WRITE
If the user provides '-m #' (# > 0) with mappings
raid4/5/6, the command silently creates
'#mirrors * #stripes + #parity' image component pairs.
Patch rejects '-m #' altogether for those mappings
in order to avoid LV creation with unexpected layout.
- resolves bz#1209445
Since now we have metadata parts running with normal speed,
we could avoid reinitilising delayed dev for every test.
(Saving seconds on cookie waits...)
If the device name is not found in our metadata,
we cannot call strdup few lines later with NULL name.
More intersting story goes behind how it happens -
pvmove removal is unfortunatelly 'multi-state' process
and at some point (for now) we have in lvm2 metadata
LV pvmove0 as stripe and mirror image as error.
If such metadata are left - we fail with any further removal.
Use common code for error_dev & delay_dev.
Both functions now take list of sectors.
From now on we could delay just 'extent' section, while
keeping running lvm commands fast (having native metadata area).
We cannot print TEST WARNING within test shell script
(since it's running in debug mode and thus always prints it)
Use 'should false' trick let the string printed in this case.
So 'non cluster cases' should now end properly.
If the kernel has 'new lcm()' (3.19) it provides wrong
optimal_io_size value for dm device so lvm2 command cannot
create properly aligned devices.
Use 'should' for this case - so test ends with 'TEST WARNING'.
Commit 80f4b4b803
introduced undesirable side-effects for lvm2app user
which happens to be our own python binding.
It appear obtaing pvs list keeps global lock.
So restricting this to VG_GLOBAL READ locks and skip
the drop skip if WRITE lock is held.
we do not allow 0 interval for pvmove command issued
without parameters with classical polldaemon. It would
query the kernel too often with possibly many pvmoves
in-progress.
So far pvmove_update_metadata (originaly _update_metadata) was
used for both initial and subsequent metadata updates during polling.
With a new polldaemon (lvmpolld) all operations that require polling
have to be split in two parts: The initiating one and the polling one.
The later step will be used from lvm command spawned by lvmpolld to
monitor and advance the mirror on next segment if required.
1) The initiation part is _update_metadata in pvmove.c which performs
only the first update, setting up the pvmove itself in metadata.
2) pvmove_update_metadata in pvmove_poll.c now handles all other
subsequent metadata updates except the last one.
Due to the split we could remove some code. Also some functions were
moved back to pvmove.c as they were suited for initialisation of pvmove
only.
This commit has no impact on functionality. Code required to
be visible outside lvconvert.c is just moved into new file
lvconvert_poll.c and some calls are made non-static and
declared in new header file lvconvert.h
This commit has no impact on functionality. Code required to
be visible outside pvmove.c is just moved into new file
pvmove_poll.c and some calls are made non-static and declared in
new header file pvmove.h
When lvm2-pvscan@.service and lvm2-lvmetad.service are scheduled to be
stopped lvm2-pvscan@.service should be stopped first since pvscan uses
lvmetad.
This is especially important if lvm2-lvmetad.socket is also scheduled to
be stopped as in this case connection requests are suppressed causing
pvscan to fail.
_check_lv_status was called from within dm_list_iterate_items cycle.
This was utterly wrong! _check_lv_status may remove more than one LV from
vg->lvs list we iterated in the same time.
In some scenarios this could lead to deadlock iterationg over same LV
indefinitely or segfault depending on the circumstances.
Fixed by moving the _check_lv_status outside iterating the vg->lvs
list.
Note that commit 6e7b24d34f was not enough
as _check_lv_status may result in removal of more than one LV from the list.
