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get_sizes_lockspace() may not always initilize all passed values
in case the bitfield would not trigger if() path.
So just in case keep the path initilized.
TODO: maybe add INTERNAL_ERROR to get_sizes_lockspace().
When converting a VG to locktype sanlock, a new
lease is allocated for each existing lv. Finding
a new lease location involved searching the lvmlock
LV from the start for an unused location, which
would be very slow with many LVs. Improve this by
starting each search from the last used location.
Fix regression from commit 7f29afdb06
"lvmlockd: configurable sanlock lease sizes on 4K disks"
That change failed to recognize that a running lockspace will not
exist in lvmlockd when converting a local VG to a sanlock VG, i.e.
vgchange --locktype sanlock vgname. When the vgchange attempted
to initialize new lv leases for existing LVs, lvmlockd would
return an error when it found no lockspace.
When searching for committed LV by uuid, this search can
be expensive for commands like 'vgremove' - so for
this part introduce 'lv_uuids' radix_tree that is
build with first access to lv_committed().
Since there is a group of commands that need to access 'lv_list'
while still need to search for LV by its name, make the whole
struct lv_list a member of logical_volume structure.
This makes it easy to return also 'lv_list' this list this LV
within VG.
Also the patch should not use more memory, since we were allocating
lv_list for each LV anyway when linkin LV to VG.
Since find_lv_by_name() is now using radix_tree(),
use the same 'search for /' in LV in name for both
find_lv() & find_lv_in_vg().
TODO: Possibly refactor code and use only dm_list
instead of lv_list and dereference LV with container_of()
(thus saving pointer within struct logical_volume) - but
we use 'lv_list' currently in many places...
Add lvm.conf config/validate_metadata configurable setting.
Allows to disable validation of volume_group structure before
writing to disk.
Call of vg_validate() is supposed to catch any inconsistency
of in-memory volume group structure and possibly early aborting
commnand before making any more 'damage' in case the VG struct
is found insistent after some metadata manipulation.
This is almost always useful for devel - and also for normal user
as for small metadata size this doesn't add too much overhead.
However if the volume_group size is large and operations are just
adding removing simple LVs - this validation time may add noticable
to final command running time.
So if the user seeks the highest perfomance of command and does
not do any 'complex' metadata manipulation - it's reasonably safe
to disable validation (with the use of setting "none") here.
With presence of uniq_insert, use this function also
here for extra protection and check for duplicate lv_name
when inserting a new name into radix_tree.
Avoid config 'grep' with actual 'randomly' generated path name
which may eventually contain 'cc' as part the path and
causing a mismatch of the grep test.
When 'lvresize -r' is used to resize the volume, it's valid to
resize even to the same size of an LV, as the command then runs
fs-resize utility to eventually upsize the fs to the current
volume size.
Return code of such command then reflects the return value
of this fs-resize tool.
This fixes the regression introduced when the support
for option --fs was added (2.03.17).
Use proper function names in annotation
There are no fuction named print_common_options_cmd()
and print_common_options_lvm(). So, rename them to the
real function named print_usage_common_cmd() and
print_usage_common_lvm().
Signed-off-by: YunJian Long
