btrfs: fix missing snapshot drew unlock when root is dead during swap activation

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[ Upstream commit 9c803c474c ]

When activating a swap file we acquire the root's snapshot drew lock and
then check if the root is dead, failing and returning with -EPERM if it's
dead but without unlocking the root's snapshot lock. Fix this by adding
the missing unlock.

Fixes: 60021bd754 ("btrfs: prevent subvol with swapfile from being deleted")
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Filipe Manana 2024-11-29 13:33:03 +00:00 • committed by Greg Kroah-Hartman

parent 653b704e7d

commit 650214c925

1 changed files with 1 additions and 0 deletions

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fs/btrfs/inode.c

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