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Fix get_pool_params to only read params.
Add poolmetadataspare option to get_pool_params.
Move all profile code into update_pool_params.
Move recalculate code into pool_manip.c
Revert logic and rename new arg_ functions to:
arg_from_list_is_set()
arg_outside_list_is_set()
When err_found is given, log_error message is automaticaly
printed.
Support --repair and --use-policies with mirrors.
(fixes another regression from lvconvert change for thin and cache).
TODO: the code path for mirror needs update.
Major update of lvconvert code to handle cache and thin.
related targets.
Code tries to unify handling of cache and thin pools.
Better supports lvm2 syntax:
lvconvert --type cache --cachepool vg/pool vg/cache
lvconvert --type thin --thinpool vg/pool vg/extorg
lvconvert --type cache-pool vg/pool
lvconvert --type thin-pool vg/pool
as well as:
lvconvert --cache --cachepool vg/pool vg/cache
lvconvert --thin --thinpool vg/pool vg/extorg
lvconvert --cachepool vg/pool
lvconvert --thinpool vg/pool
While catching much more command line errors.
(Yet couple paths still needs more tests)
Detects as much cmdline errors prior opening VG.
Uses single lvconvert_name_params to convert LV names.
Detects as much incompatibilies in VG prior prompting.
Uses single prompt to confirm whole conversion.
TODO: still the code needs fixes...
Since the type passed LV is changed and content of data detroyed,
query user with prompt to confirm this operation.
Also add a proper wiping of header.
Using '--yes' will skip this prompt:
lvconvert -s --yes vg/lv vg/lvcow
mirror_or_raid_type_requested really checks for mirror type.
Convert macros mirror_or_raid_type_requested() and
snapshot_type_requested() into inline functions.
Since vg_name inside /lib function has already been ignored mostly
except for a few debug prints - make it and official internal API
feature.
vg_name is used only in /tools while the VG is not yet openned,
and when lvresize/lvcreate /lib function is called with VG pointer
already being used, then vg_name becomes irrelevant (it's not been
validated anyway).
So any internal user of lvcreate_params and lvresize_params does not
need to set vg_name pointer and may leave it NULL.
Use NAME_LEN constant to simplify creation of device name.
Since the max size should be already tested in validation,
throw INTERNAL_ERROR if the size of vg/lv is bigger then NAME_LEN.
While polling for snapshot, detect first the snapshot still
exits. It's valid to have multiple polling threads watching
for the same thing and just 1 can 'win' the finish part.
All others should nicely 'fail'.
Warn user before converting volume to different type.
WARNING: Converting vg/lvol0 logical volume to pool's meta/data volume.
THIS WILL DESTROY CONTENT OF LOGICAL VOLUME (filesystem etc.)
Since the content of volume is lost we have to query user to confirm
such operation. If user is 100% sure, he may use '--yes' to avoid prompts.
Delay archiving of metadata until we really start to
update metadata when converting volume into a snapshot.
Archive is not necessary when we abort operation early.
Do not allow conversion of too small LV into a COW snapshot device.
Without this patch snapshot target is generating these kernel
messages before creation fails:
attempt to access beyond end of device
dm-9: rw=16, want=8, limit=2
attempt to access beyond end of device
...
device-mapper: table: 253:11: snapshot: Failed to read snapshot metadata
device-mapper: ioctl: error adding target to table
device-mapper: reload ioctl on failed: Input/output error
Usage of origin as a snapshot 'COW' volume is unsupported.
Without this test lvm2 is able to generate this ugly internal error message.
To test this:
lvcreate -L1 -n lv1 vg
lvcreate -L1 -n lv2 -s vg/lv1
lvcreate -L1 -n lv3 vg
lvconvert -s vg/lv3 vg/lv1
Internal error: LVs (5) != visible LVs (1) + snapshots (1) + internal LVs (0) in VG vg
