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The LV locks make sense only for clustered LVs.
Properly check cluster flag and never issue cluster lock here.
There are several places in code, where it is already checked, this
patch add this check to all needed calls.
In previous code the lock behaviour was inconsistent,
for example, the pre/post callback can take lock even for local volume,
but deactivate call do not released this lock and it remains held forever.
The local LV lock request now just let run the underlying activation code
on local node, the same process like in local locking.
(Again, this is important for new mirror repair calls, here for local
mirrors but with cluster locking enabled.)
This is unnoticed regression from commit 31672ff60e
The pre/post callback need to convert lock always, local node
is going to modify metadata in this case, it it fails conversion,
the call is ignored.
Also it fixes bug when the lock is not yet held, we cannot set LKF_CONVERT
in this case, it will fail because this lock do not exist.
Note that the automatic conversion is still disabled in activate
call, so the original fix (reactivation of exlusive LV) should
be still in place.
(Code already not fail if unlocking not locked resource.)
This is needed in pre/post lock_lv call, where we can
request the same lock on local node becuase of suspend call.
- do_command and lock_vg expect flags (no change here)
Bug fixes:
- lock_vg should check for NONBLOCK on lock_cmd, flags have this bit masked-out
- do_pre/post_command expect do not mask flag at all, this causes that
the code inside is never run! (see following patches, these functions
expect plain command without flags)
is granted at one mode and an attempt to convert it wthout the LCK_CONVERT
flag set then it will return errno=EBUSY.
This fixes a pretty bad bug in which an LV could be activated exclusively on
one node and lvchange -ay on another would convert it to shared!
It might break some things in other areas, but I doubt it.
When clogd was renamed to cmirrord, somehow git got the remove of the old
files but not the add of the new files. This patch adds the new files.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
interface it should be using, it can still be overriden with -I.
If corosync isn't running or there is no information then the usual
checking will happen.
This code only builds if corosync is available.
This check-in includes the touch-ups, make file changes, copyrights,
and other necessities to include the cluster log daemon into the
build system.
[autoconf still needs to be run to generate the 'configure' and
'Makefile' files.]
Eliminate dependency on outside library, since the same functionality
exists in our tree.
[It is important that the bitops work in the same way, as the bitmaps
must remain backwards compatible. I haven't tested every architecture,
but the x86* archs work. My test involved using the old ext2fsprogs
bitops, memcpy'ing the bits over to the LVM bitset array and ensuring
that only the bits set via the old methods were set.]
The changes to remove LCK_NONBLOCK from the LVM locks broke clvmd because the
code was clearly wrong but working anyway! The constant was being masked rather
than the variable that was supposed to match against it.
A patch to the kernel, adding the 'luid' field to dm_ulog_request,
will allow us to properly identify log instances. We will now
be able to definitively identify which logs are to be removed/
suspended/resumed. This replaces the old faulty behavior of
assuming the logs were the same if they had the same UUID and
incrementing/decrementing a reference count.
made to compensate for the changes in the kernel-side component
that recently went upstream. (Things like: renamed structures,
removal of structure fields, and changes to arguments passed
between userspace and kernel.)
