btrfs: backref, only search backref entries from leaves of the same root

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We could have some nodes/leaves in subvolume whose owner are not the
that subvolume. In this way, when we resolve normal backrefs of that
subvolume, we should avoid collecting those references from these blocks.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: ethanwu <ethanwu@synology.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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ethanwu 2020-02-07 17:38:17 +08:00 • committed by David Sterba

parent ed58f2e66e

commit cfc0eed0ec

1 changed files with 9 additions and 3 deletions

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fs/btrfs/backref.c

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