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LV with pvmove_ prefix is not allowed to be created by user
so bigger chance our selected name will never exist.
TODO: probably add code to get generic unused LV name...
Older gcc doesn't really like complex types (buffer, struct) to be
initialized without extra {} around such type.
So pick any other 'single type' var from a struct and set it to 0,
rest will do the compiler without emitting a warning.
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.
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.
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.)
Stop printing "Skipping global lock: lockspace not found or started"
for vgchange --lockstart, since it's generally an inherent limitation
that the global lock isn't available until after locking is started.
Update the start delay warning to "a few seconds".
vgremove with --lockopt force should skip lvmlockd-related
steps and allow a forced vg cleanup, in addition to using
--nolocking to skip normal locking calls.
Previously, a command would call lockd_vg() for a local VG,
which would go to lvmlockd, which would send back ENOLS,
and the command would not care when it saw the VG was local.
The pointless back-and-forth to lvmlockd for local VGs can
be avoided by checking the VG lock_type in lvmcache (which
label_scan now saves there; this wasn't the case back when
the original lockd_vg logic was added.) If the lock_type
saved during label_scan indicates a local VG, then the
lockd_vg step is skipped.
Fix commit b65a2c3f3a "vgimportdevices: skip lvmlockd locking"
which intended to disable lvmlockd locking, but the lockd_gl_disable
flag was mistakenly set after lock_global() so it wasn't effective.
This caused vgimportdevices to fail unless locking was started.
Replace call to get_dm_uuid_from_sysfs() with use of
device_get_uuid() which gets the same information,
but instead of several syscalls it need either 1 or even 0
when the information is cached with newer kernels.
