xfs: ensure that single-owner file blocks are not owned by others

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For any file fork mapping that can only have a single owner, make sure
that there are no other rmap owners for that mapping.  This patch
requires the more detailed checking provided by xfs_rmap_count_owners so
that we can know how many rmap records for a given range of space had a
matching owner, how many had a non-matching owner, and how many
conflicted with the records that have a matching owner.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>

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Darrick J. Wong 2023-04-11 19:00:16 -07:00

parent 69115f775f

commit 30f8ee5e7e

1 changed files with 13 additions and 1 deletions

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fs/xfs/scrub/bmap.c

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