btrfs: relocation: allow signal to cancel balance

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Although btrfs balance can be canceled with "btrfs balance cancel"
command, it's still almost muscle memory to press Ctrl-C to cancel a
long running btrfs balance.

So allow btrfs balance to check signal to determine if it should exit.
The cancellation points are in known location and we're only adding one
more reason, so this should be safe.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Qu Wenruo 2020-07-13 09:03:19 +08:00 • committed by David Sterba

parent 813f8a0e26

commit 5cb502f4ab

1 changed files with 2 additions and 1 deletions

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fs/btrfs/relocation.c

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