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When large size number (>2^31) is given on command line it could be
misdetected and in certain cases lead to wrongly casted number.
So make sure all cases always do set _MAX number in case the value would
not fit within the supported range instead of getting some random value
within the range.
In most cases this was not a problem to detect, but i.e. stripesize
parameter might have been fooled by certain large numbers.
Rewrite validation of stripes and stripe_size args into more readable
sequential code.
Extend reading of stripes & stripes_size args so it better knows
defaults for types like striped raid.
TODO: this should really be a value obtained for segtype structure and
all the weird conditions and modification of stripes and stripe_size
around lvm2 code should be dropped.
There is no need to differentiation between clustered VG and normal VG.
As the activation depends on locking type.
Use unconditionally locally exclusive activation for pvmove.
- Use 'lvmcache' consistently instead of 'metadata cache'
- Always use 5 characters for source line number
- Remember to convert uuids into printable form
- Use <no name> rather than (null) when VG has no name.
The persistent filter should not be imported by any command that doesn't
use it so take addtional note of REQUIRES_FULL_LABEL_SCAN (for vgrename)
and introduce IGNORE_PERSISTENT_FILTER for vgscan and pvscan.
Check and prevent starting another snapshot merge before
exiting merging is finished.
TODO: we can possibly implement smarter logic to drop existing
merging and start a new one.
Correct reported message when thin snapshot has been already merged.
So lvm2 is no longer reporting "Mergins of snapshot X will occur..."
(even with swapped names).
vgsplit shares the vg_rename code so that must only set the PV_MOVED_VG
flag introduced in commit 486ed10848
("vgmerge: Fix intermediate metadata corruption") on PVs that moved.
Since both lvcreate and lvconvert needs to check for same
type of allowed origin for snapshot - move the code into
a single function.
This way we also fix several inconsitencies where snapshot
has been allowed by mistake either through lvcreate or
lvconvert path.
Do not allow to take snapshot of mirror/raid leg or log or metadata LV.
This was actually never supported, but user was able to create it,
and this put device stack in hardly fixable state (needs manual work).
This prevents such creation to pass.
Also improve validation when recreating snapshot volume type
from origin and COW volume.
Correction to function for extracting vgname out of lvconvert
parameters.
Avoid repeating some checks.
Add code to handle generic options which may provide vgname in its argument
and compare them all so they match to a single vgname (otherwise it's a
error).
Extract default (envvar) vgname only when no position nor optional vgname is
found.
Fixing regression instroduce with patchset started with commit:
1e2420bca8 (2.02.169)
lvcreate supports a 'conversion' when caching LV.
This normally worked fine, however in case passed LV was
thin-pool's data LV with suffix _tdata we have failed to early.
As the easiest fix looks dropping validation of name when
caching type is select - such name check will happen later
once the VG is opened again and properly detect if the LV
with protected name already exists and can be converted,
or will be rejected as ambigiuous operation requiring user
to specify --type cache | --type cache-pool.
Replaced the confusing device error message "not found (or ignored by
filtering)" by either "not found" or "excluded by a filter".
(Later we should be able to say which filter.)
Left the the liblvm code paths alone.
vgmerge suffers from a similar problem to the one fixed in commit
8146548d25 ("vgsplit: Fix intermediate
metadata corruption.")
When merging, splitting or renaming VGs, use a new PV status flag
PV_MOVED_VG to mark the PVs that hold metadata with the old VG name and
use this to provide PV-level granularity instead of incorrectly assuming
all PVs in the VG are the same.
Changing the VG of a PV uses the same on-disk mechanism as vgrename.
This relies on recognising both the old and new VG names. Prior to this
patch the vgsplit code incorrectly provided the new VG name twice
instead of the old and new ones. This lead the low-level mechanism not
to recognise the device as already belonging to a VG and so paying no
attention to the location of its existing metadata, sometimes partly
overwriting it and then later trying to read the corrupt metadata and
issuing a checksum error.
When certain cmd def RULE's fail, the error messages can
sometimes be confusing. This expands the error messages
to help clarify why the rule failed, especially in cases
where options are used incorrectly.
In a shared VG, only allow pvmove with a named LV,
so that only PE's used by the LV will be moved.
The LV is then activated exclusively, ensuring that
the PE's being moved are not used from another host.
Previously, pvmove was mistakenly allowed on a full PV.
This won't work when LVs using that PV are active on
other hosts.
Enable handling of --poolmetadataspare so if user can prevent
creation of _pmspare volume during --repair operation (just
like during actual lvcreate or lvconvert) for pool volumes.
The following commands now pass the device list through a
--select|-S filter before processing:
suspend resume clear wipe_table remove deps status table
