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These are no longer used by anyone. The dm_list defines are all in
libdevmapper.h and libdm/datastruct/list.c contains any function definitions.
There is some code in "old-tests" that still use this but this code is not
being maintained.
Thanks to Zdenek for spotting this.
The physical_volume, volume_group, logical_volume and lv_segment
structures' 'status' member is now uint64_t.
The alignment of these structures was also audited to remove holes. The
movement of some members in 'volume_group' and 'lv_segment' eliminates
holes. The 'physical_volume' structure still has one 4-byte hole after
'pe_size'; the other structures no longer have any holes. Each
structures' size has not changed.
If the vg_read() returned error, no lock was taken,
so always call vg_release().
Otherwise this can happen because of missing FAILED_*:
# vgchange -a y x --ignorelockingfailure
Volume group "x" not found
Internal error: Attempt to unlock unlocked VG x
The sysfs filter initialise hash of available devices using
scan of /sys/block. We need to refresh even this hash
when performing full scan otherwise the newly appeared
device could be rejected, because there is no entry
in sysfs filter.
This easily could happen when attaching new device
to cluster node. (Only force refresh of context
in clvmd -R works here now).
Unfortunately consequences of this are much worse,
missing device part on that node is replaced with missing segment
(even when no partial arg is selected) and this directly
lead to data corruption.
See https://bugzilla.redhat.com/show_bug.cgi?id=538515
Simply fix it by refreshing device filters in lvmcache
before performing the full device scan.
(on one node a storage connection failed):
# vgchange -a y vg_bar ; echo $?
Error locking on node bar-02: Refusing activation of partial LV lv1. Use --partial to override.
1 logical volume(s) in volume group "vg_bar" now active
0
So activation fails on one node, error is correctly printed but
status code is wrong.
This patch fixes the top level (vgchange) to return proper code
(and print # of activated LVs).
(lvchange returns error properly here.)
(This affects only cluster locking because only cluster
locking module set LCK_PRE_MEMLOCK.)
With currect code you get
# vgchange -a n
Internal error: _memlock_count has dropped below 0.
when using cluster locking.
It is caused by _unlock_memory calls here
if ((flags & (LCK_SCOPE_MASK | LCK_TYPE_MASK)) == LCK_LV_RESUME)
memlock_dec();
Unfortunately it is also (wrongly) called in immediate unlock
(when LCK_HOLD is not set) from lock_vol
(LCK_UNLOCK is misinterpreted as LCK_LV_RESUME).
Avoid this by comparing original flags and provide memlock
code type of operation (suspend/resume).
All hidden (not visible) volumes should be activated through
other visible volumes.
(There are already exceptions like snapshot, mirror log and image,
which should be cleaned one day...)
This solves problems for future types of hidden volumes,
which can have special meaning and must not be activated implicitly
(e.g. key store volume).
- fix missing unlocking of VG
lvcreate -l 100%PVS -n lv1 vg_test
Please specify physical volume(s) with %PVS
Internal error: Volume Group vg_test was not unlocked
- if no PVS specified, use all available
Fix segfault if %PVS in lvresize without PVs list.
The DRBD uses underlying device so code should prefer top
device if duplicate is found.
Patch also introduce
dev_subsystem_part_major and dev_subsytem_name
functions to easily handle all these replication susbystems
and not hardcode md_major call.
See https://bugzilla.redhat.com/show_bug.cgi?id=530881
for full problem description.
Option --all is only partially documented currently, so document in all
commands. Also make {pv|vg|lv}{display|s} man pages consistent with help
output. Remove ununsed 'disk_ARG' parameter. Leave --trustcache out of
the man page output. Update --units argument to show all possible units.
Per discussion on lvm-devel mailing list and part of debian patch set,
don't set defaults for owner and group, since nobody seems to use them, and
still allow override.
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.
