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Create new substituted variable PTHREAD_LIBS and link this library
only with tools/libs which really needs it - i.e. dmeventd.
Check for libpthread only for builds with clvmd or dmeventd.
Remove variable LIB_PTHREAD
Switch lvconvert's --merge code over to using process_each_lv(). Doing
so adds support for a single 'lvconvert --merge' to start merging
multiple LVs (which includes @tag expansion).
Add 'lvconvert --merge @tag' testing to test/t-snapshot-merge.sh
Adjust man/lvconvert.8.in to reflect these expanded capabilities.
The lvconvert.c implementation requires rereading the VG each iteration
of process_each_lv(). Otherwise a stale VG instance associated with
the LV passed to lvconvert_single_merge() would result in stale VG
metadata being written back out to disk. This overwrote new metadata
that was written when a previous snapshot LV finished merging (via
lvconvert_poll). This is only an issue when merging multiple LVs that
share the same VG (a single VG is typical for most LVM configurations on
system disks).
In the end this new support is very useful for performing a "system
rollback" that requires multiple snapshot LVs be merged to their
respective origin LV.
The yum-utils 'fs-snapshot' plugin tags all snapshot LVs that it creates
with a common 'snapshot_tag' that is unique to the yum transaction.
Rolling back a yum transaction, that created LVM snapshots with the tag
'yum_20100129133223', is as simple as:
lvconvert --merge @yum_20100129133223
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Support "wait before testing" using '+' in pvmove and lvconvert
interval. Doing so overrides the new default of sleeping after checking
the LV's progress.
Sleeping before checking progress can lead to extraneous polldaemons
being left running. These polldaemons would have otherwise exited had
they checked before sleeping. Checking progress before sleeping helps
workaround the subtly unreliable nature of "finished" state checking
in _percent_run.
Update test/t-mirror-names.sh to use '+' when providing its lvconvert
interval.
LVM2 test (rather than using the traditional loop device).
prepare_scsi_debug_dev currently assumes exclussive access to the
scsi_debug module. Any script that tries to use prepare_scsi_debug_dev
when scsi_debug is unavailable or already loaded into the kernel will be
skipped.
t-topology-support.sh shows how prepare_scsi_debug_dev function can be
used repeatedly (within a script) to test LVM2 ontop of a ramdisk-based
SCSI device w/ arbitrary scsi_debug features.
isn't already available (in /proc/mdstat).
switch to requiring 2.6.33 for the alignment_offset tests; 2.6.{31,32}
alignment_offset values aren't reliable. 2.6.33 _should_ have mkp's
alignment_offset fixes but so far it doesn't (as of 2.6.33-rc4).
1. Found bug in 'redundant log' implementation that caused
problems when converting a linear that spanned multiple
devices to a mirror (wasn't checking for NULL value of
provided parameter in _alloc_parallel_area)
2. Testsuite was failing to perform tests when 'not' modifier
was used. This allowed a couple issues to slip through.
Added a 'not_sh' modifier that negates tests performed by
functions defined in the shell source file.
3. Was initializing a variable to far down, which cause
previously set value to be overridden. (This was the
result of the collision of the "redundant log" and
lvconvert fix patches.)
(So the tests can run under cluster locking and do not require
cluster mirror or snapshots.)
Add vgscan before block device readahead change
(flush long running process - clvmd - dev cache.)
Going forward, we would like to allow users to specify the total
number of metadatacopies in a VG rather than on a per-PV basis. In
order to facilitate that, introduce --pvmetadatacopes to replace
--metadatacopies everywhere. We still allow --metadatacopies for
pv commands, but require --pvmetadatacopies for vg commands.
Eventually we will introduce --vgmetadatacopies. Once we do that,
we should either deprecate --metadatacopies or make it a synonym based
on the command (pvmetadatacopies for pv commands, and vgmetadatacopies
for vg commands). The latter option would likely just require a simple
'strncpy' check against cmd->command->name to qualify the merge_synonym
call.
Update nightly tests to cover the pvmetadatacopies synonym.
Note that this patch is the result of an eariler review comment for
the implicit pvcreate patches. Should apply cleanly on top of the
implicit pvcreate patches (I applied after patch 10/10 in that series).
NOTE: This patch will require --pvmetadatacopies for vgconvert as
--metadatacopies is no longer accepted.
Going forward, we would like to allow users to specify the total
number of metadatacopies in a VG rather than on a per-PV basis. In
order to facilitate that, introduce --pvmetadatacopes to replace
--metadatacopies everywhere. We still allow --metadatacopies for
pv commands, but require --pvmetadatacopies for vg commands.
Eventually we will introduce --vgmetadatacopies. Once we do that,
we should either deprecate --metadatacopies or make it a synonym based
on the command (pvmetadatacopies for pv commands, and vgmetadatacopies
for vg commands). The latter option would likely just require a simple
'strncpy' check against cmd->command->name to qualify the merge_synonym
call.
Update nightly tests to cover the pvmetadatacopies synonym.
Note that this patch is the result of an eariler review comment for
the implicit pvcreate patches. Should apply cleanly on top of the
implicit pvcreate patches (I applied after patch 10/10 in that series).
NOTE: This patch will require --pvmetadatacopies for vgconvert as
--metadatacopies is no longer accepted.
Now uppercase letters imply Si units, so use lowercase everywhere.
We could stay with uppercase, but then we'd have to deal with rounding, etc.
Also, some output / error messages change slightly (instead of "GB" we're
now saying "GiB").
One test enhancement might be to add some new tests for the units changes
but for now let's just get the test back to passing.
The test/api directory TARGET line will be reserved for non-interactive
unit tests. Building the interactive test can still be done with "make test"
from the test/api dir.
