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Previously, this was the recommended form for creating a cache pool:
lvconvert --cachepool VG/CacheDataLV --poolmetadata VG/CacheMetaLV
but this is confusing, because --cachepool does not actually take
an arg, and is more natually used to specify an existing cache pool.
The new recommended form is:
lvconvert --type cache-pool --poolmetadata VG/CacheMetaLV VG/CacheDataLV
We are not using already defined segement type names where we could.
There is a lot of other places in device-mapper and LVM2 we have those
hardcoded so we should better finally have a common interface in
libdevmapper to avoid this.
Use of lv_info() internally in lv_check_not_in_use(),
so it always could use with_open_count properly.
Skip sysfs() testing in open_count == 0 case.
Accept just 'lv' pointer like other functions.
The function has 'built-in' lv_is_active_locally check,
which however is not what we need to check in many place.
For now at least remotely active snapshot merge is
detected and for this case merge on next activation is scheduled.
Move check for snapshot-merge support before archiving.
Split code on 2 paths - with merge_on_activate
using vg_write & vg_commit
and lv_update_reload call for instant merging.
Move printing after backup.
Before leaving _activate_lvs_in_vg() wait till devices
are active - so we do not print message about active
devices earlier then it really happens for a user.
More validations before any thin or cache related conversion begins.
We allow to use and stack:
pool data: cache or raid
pool metadata: raid
pool: linear, striped
cache: linear, striped, raid
thin(extorig): linear, origin, cow, virtual, thin
We use adjusted_mirror_region_size() in two different contexts.
Either on command line -
here we do want to inform user about reduction of size.
Or in pvmove activation context -
here we should only use 'verbose' info.
When requesting to reload an LV imrove this API to
automatically reload its lock holding LV as in cluster
only top-level LVs are addressable with lock.
When vg_ondisk is NULL we do not need to search
through the whole VG to find out the same LV.
NOTE: as of now - VG locking is not enabled as some code parts
are breaking memory locking rules (lvm2app).
Once we enforce VG locking for read-only commands the effect
will be much better for larger VGs.
Do not let fly metadata with just 'minor' set
(since they would not be readable on older version)
Be permissive with invalid major/minor number and
just report them as problem, but allow to use
such metadata with default major:minor.
Use nice instruction_HLT macro
Use log_debug_mem()
Don't actually log things after we prohibit 'mmap'.
Move initialization of strerror & udev before blocking mmap.
We do not need to restore LV content on error path - since
for reactivation we always use ondisk/commited metadata,
so passed data are never used.
Drop some unneded extra message, since the called function
repeated logs same info.
Move common code for reading and processing
of --persistent arguments for lvcreate and lvchange
into lvmcmdline.
Reuse validate_major_minor() routine for validation.
Don't blindly activate LVs after change in cluster
and instead only local reactivation is supported.
(we have now many limited targets now).
Dropping 'sigint_caught()' handling, since
prompt() is resolving this case itself.
Add code to trap both mmap implementation on 32bit arch.
Use dlsym()
Use hlt instraction instead of int3 - generates usable stack trace
when problem is catched.
