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The .cache and compile_commands.json is used by popular source crawling and
indexing clang tools which in turn may be integrated with source code editors.
We may reuse the .cache directory for for other caches and temporary
files.
The /doc/.ikiwiki and /public are related to the ikiwiki.
Avoid possible udev race - since dmsetup create is
not using the same cookie logic as lvm2 commands,
try to avoid racing on some systems with udev scanning.
The option can be used in multiple ways (like --cachesettings):
--integritysettings key=val
--integritysettings 'key1=val1 key2=val2'
--integritysettings key1=val1 --integritysettings key2=val2
Use with lvcreate or lvconvert when integrity is first enabled
to configure:
journal_sectors
journal_watermark
commit_time
bitmap_flush_interval
allow_discards
Use with lvchange to configure (only while inactive):
journal_watermark
commit_time
bitmap_flush_interval
allow_discards
lvchange --integritysettings "" clears any previously configured
settings, so dm-integrity will use its own defaults.
lvs -a -o integritysettings displays configured settings.
log/command_log_report config setting defaults to 1 now if json or json_std
output format is used (either by setting report/output_format config
setting or using --reportformat cmd line arg).
This means that if we use json/json_std output format, the command log
messages are then part of the json output too, not interleaved as
unstructured text mixed with the json output.
If log/command_log_report is set explicitly in the config, then we still
respect that, no matter what output format is used currently. In this
case, users can still separate and redirect the output by using
LVM_OUT_FD, LVM_ERR_FD and LVM_REPORT_FD so that the different types
do not interleave with the json/json_std output.
In case of different PV sizes in a VG, the lvm2 allocator falls short
to define extended segments resiliently asked for 100%FREE RaidLV extension
and a RAID distinct allocation check fails. Fix is to release a memory pool
on the resulting error path.
Until the lvm2 allocator gets enhanced (WIP) to do such complex (and other)
allocations proper, a workaround is to extend a RaidLV to any free space on
its already allocated PVs by defining those PVs on the lvextend command line
then iteratively run further such lvextend commands to extend it to its
final intended size. Mind, this may be a non-trivial extension interation.
The cmd struct is now required in many more functions, and
it's added as a function arg for most direct dev-cache function
calls. The cmd struct is added to struct device (dev->cmd) so
that it can be accessed in many other cases where dev-cache
functions are being called from places where getting the cmd
struct is too difficult.
The dm devs cache is separate from the ordinary dev cache,
so give the function names distinct prefixes, using
"dm_devs_cache" to prefix dm devs cache functions.
When a PV is stacked on an LV, the PV needs to be
dropped from bcache before the LV is processed.
The LV can be found in dev-cache using its name
rather than the devno.
The list of dm devs was in the cmd struct and had a
different lifetime than the radix trees referencing
those dm devs. Now the list and radix trees are
created and destroyed together.
In the context of dm, 'device' refers to a dm device, but
in the context of lvm, 'device' refers to struct device.
Change some lvm function names to make that difference clearer.
dev_manager_get_device_list() -> dev_manager_get_dm_active_devices()
get_device_list() -> get_dm_active_devices()
device_get_uuid() -> dev_dm_uuid(), devno_dm_uuid()
The comment explained that the ex global lock was just
used to trigger global cache invalidation, which is no
longer needed. This extra locking can cause problems
with LVM-activate when local and shared VGs are mixed
(and the incorrect exit code for errors was causing
problems.)
vgchange -an vg is permitted when the vg lockspace
is not available, because LVs could still be active
for some reason, and they should be inactive when not
properly locked. In case lvmlockd was not running, or
the lockspace was not started, the command was
unnecessarily trying and failing to unlock every LV,
printing errors for every LV. We can skip this when
the lockspace is known to not be available.
vgchange --lockstop will fail with EBUSY if orphan locks in the
lock manager prevent stopping the lockspace. The orphan locks
can then be adopted and released, and the lockspace then stopped
cleanly.
Lock adoption is not part of standard command behavior, but can
be used for manual recovery or cleanup from unexpected failure
cases. Like other lockopt values, they are hidden options for
--lockopt. Different lock managers will behave differently.
Adopting locks with lvmlockd -A1 is more accurate and automatic.
--lockopt adoptls
. for vgchange --lockstart
. adopt existing ls, or fail if no existing lockspace is found
--lockopt adoptgl | adoptvg | adoptlv
. for commands using lvmlockd locks
. adopt orphan gl/vg/lv lock, or fail the lock request if
no orphan lock is found
. will fail if orphan lock exists with a different lock mode
. command may still continue with a failed shared lock request
--lockopt adopt
. for lockstart or any command using lvmlockd locks
. adopt existing lockspace, or start lockspace if none exists
. adopt orphan gl/vg/lv lock, or acquire new lock if no orphan found
. will fail if orphan lock exists with a different lock mode
. command may still continue with a failed shared lock request
. with dlm this option only works for ls
