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Always shift created virtual PVs on backing device by 1MiB
and leave 1MiB free space at the end of device.
This way the system doesn't see same PV headers at multiple devices.
Adding full filesystem sync, trying to fight with strange error from losetup:
losetup: loopa: failed to set up loop device: Resource temporarily unavailable
loop0: detected capacity change from 0 to 4096
loop_set_block_size: loop0 () has still dirty pages (nrpages=13)
Also reuse internal aux wipefs_a
This modification supports dynamically obtaining the value of PAGE_SIZE,
which is compatible with systems with PAGE_SIZE of (4K/64K)
Signed-off-by: wuguanghao <wuguanghao3@huawei.com>
This reverts commit 99b6173f10.
These tests are disabled with lvmlockd because they use
snapshots without an origin which is not permitted in a
shared vg.
user creates a file listing real devices they want
lvm tests to use, and sets LVM_TEST_DEVICE_LIST.
lvm tests can use these with prepare_real_devs
and get_real_devs.
Other aux functions do not work with these devs.
To better test actually fsadm in test suite - avoid setting
LVM_BINARY locally - since test setup already modifies
PATH to find test's lvm binary as the 1st. in path.
Move extra md component detection into the label scan phase.
It had been in set_pv_devices which was deep within the vg_read
phase, which wasn't a good place (better to detect that earlier.)
Now that pv metadata info is available in the scan phase, the pv
details (size and device_hint) can be used for extra md checking.
Use the device_hint from the pv metadata to trigger a full md
component check if the device_hint begins with /dev/md.
Stop triggering full md component checks based on missing
udev info for a dev.
Changes to tests to reflect that the code is now detecting
md components in some test case that it wasn't before.
A cachevol can be forcibly detached when it's missing devices.
Also allow this if it's damaged/invalid and unrepairable.
This would be needed to recover data from the origin LV after
a cachevol is lost or damaged beyond repair.
In cases where lvconvert does not detect a fs block size on the
device, it falls back to choosing a writecache block size based
on the device's LBS and PBS (tries to match those.)
If the user specifies a writecache block size on the command
line (--cachesettings block_size=4096|512), lvconvert currently
fails and reports an error if the user-specified value does not
match the value lvconvert would have chosen based on LBS and PBS.
The purpose of allowing a user-specified value on the command line
is to override what lvconvert would otherwise do, so change this
to just print a warning that the user value does not match the
value that would be chosen based on the LBS/PBS, and then take
the user-specified value as the writecache block size.
In case legs of a raid0 LV are removed, the lvdisplay command still
reports 'available' though raid0 is not providing any resilience
compared to the other raid levels.
Also lvdisplay does not display '(partial)' in case of missing raid0
legs as oposed to the lvs command.
Enhance lvdisplay to report "NOT available" for any RaidLV type in case
too many legs are inaccessible hence causing data loss. I.e. any leg
for raid0, all for raid1, more than 1 for raid4/5, more than 2 for raid6
and in case of completely lost mirror groups for raid10.
Add test/shell/lvdisplay-raid.sh.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1872678
