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https://github.com/kdave/btrfs-progs
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71d68ab8b2
Recognize special name 'cancel' for device deletion, that will request
kernel to stop running device deletion. This needs support in kernel,
otherwise this will fail due to another exclusive operation running
(though could be the same one).
The command returns after kernel finishes any work that got interrupted,
but this should not take long in kernels 5.10+ that allow interruptible
relocation. The waiting inside kernel is interruptible so this command
(and the waiting stage) can be interrupted.
The device size is restored when deletion does not finish but it's
recommended to review the filesystem state.
Note: in kernels 5.10+ sending a fatal signal (TERM, KILL, Ctrl-C) to
the process running the device deletion will cancel it too.
Example:
$ btrfs device delete /dev/sdx /mnt
...
$ btrfs device delete cancel /mnt
Signed-off-by: David Sterba <dsterba@suse.com>
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|---|---|---|
| .. | ||
| balance.c | ||
| commands.h | ||
| device.c | ||
| filesystem-du.c | ||
| filesystem-usage.c | ||
| filesystem-usage.h | ||
| filesystem.c | ||
| inspect-dump-super.c | ||
| inspect-dump-tree.c | ||
| inspect-tree-stats.c | ||
| inspect.c | ||
| property.c | ||
| qgroup.c | ||
| quota.c | ||
| receive-dump.c | ||
| receive-dump.h | ||
| receive.c | ||
| replace.c | ||
| rescue-chunk-recover.c | ||
| rescue-super-recover.c | ||
| rescue.c | ||
| rescue.h | ||
| restore.c | ||
| scrub.c | ||
| send.c | ||
| subvolume.c | ||