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When PVs are created on LVs, remove the devices file entries
for the PVs when the LVs are removed. In general, the devices
file entries should be removed with lvmdevices --deldev when
the LVs are removed (lvremove is the equivalent of detaching
a device from the system when layering PVs on LVs.)
This change is effectively an automatic lvmdevices --deldev
command that is built into lvremove when the LV has a PV on it.
Shortens processing of 'lvcreate -L -V -T' command and
avoid deactivation and its activation with thin_check of the empty
created thin-pool that will be used for the new thin volume
made with a single lvcreate command.
When using message API for parsing VDO stats info, 0 was wrongly
used for fallback for trying the old sysfs API.
Switch to use ULLONG_MAX for values that could not have been obtained
through the message call.
Fixes lvdisplay info for freshly created VDO volume with 0 used data
blocks.
Fix/support creation and usage of the external origin
across thin-pools - so thin LV can use thin LV from
some other thin-pool as external origin (read-only).
When creating external origin via 'lvcreate --type thin'
add the validation for LV being usable as external origin
since certain LVs cannot be really used this way.
Also call this function early during lvcreate cmdline arg
validation se we do not need to do unecesary operation.
Function to recalc chunk_size according to dev hints needs to be
used after chunk_size is being set to thin pool segment - correct
this ordering mistake introduced in previous refactoring commit.
Previous patch that introduced support for thinpool with vdo
not correctly handled header size - as this part is not fully usable
yet. We are going to try to use the 0, but current state of code is not
yet compliant to this logic so keep vdo_header_size during conversion
and alos correctly pass through virtual_extents to vdo formating.
Add code to handle creation of thin-pool with VDO data backend
which can be seen as compressed deduplicated thin-pool.
To avoid need of changing to many internal APIs, pass the conversion
parameters for create thin-pool data volume via cmd_context.
Introduce struct vdo_convert_params {} to pass-in all the parameters
needed for the conversion of an LV to a vdopool + vdo LV.
Function convert_vdo_lv() is also able to create a new LV and swap
segments, so the passed in LV can be later on use for futher
conversion so this refactoring makes it ready for more enhanced
usage.
Introduce vdo_convert_params and use vdo_params from this structure
also with lvcreate_params.
Later we will use this for convertion of thin-pool data volume to VDO.
The first lv_attr flag is 'i' or 'I' for a raid image.
(i: raid image, I: out of sync raid image)
For integrity raid images (_iorig), the flag was not being set.
With commit d7e922480e
lvconvert -m may fail if we try to remove 1st. leg that
is out-of-sync while other leg is in-sync.
Hot fix allows to proceed with such down conversion.
Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Apply the same logic for 'lvreduce' which exists for newer
systems (compiled with HAVE_BLKID_SUBLKS_FSINFO)
also for older systems for one very common practical case where
the active LV does not have any blkid known signature/filesystem.
New variant recognized this situation and allowed to proceed
without requesting a prompt, while the older variant always
requested confirmation prompt.
With this patch command now works equily for both variants
for 'active LV' without signature and allows to reduce LV
without prompting.
Before checking seg_type of the first area, check there is
some existing area.
Since we now support error and zero segtypes, these do not have
any PV area present.
