4 Commits

Author	SHA1	Message	Date
Darrick J. Wong	679b098b59	xfs: refactor directory tree root predicates ... Metadata directory trees make reasoning about the parent of a file more difficult. Traditionally, user files are children of sb_rootino, and metadata files are "children" of the superblock. Now, we add a third possibility -- some metadata files can be children of sb_metadirino, but the classic ones (rt free space data and quotas) are left alone. Let's add some helper functions (instead of open-coding the logic everywhere) to make scrub logic easier to understand. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>	2024-11-05 13:38:33 -08:00
Darrick J. Wong	3f31406aef	xfs: fix corruptions in the directory tree ... Repair corruptions in the directory tree itself. Cycles are broken by removing an incoming parent->child link. Multiply-owned directories are fixed by pruning the extra parent -> child links Disconnected subtrees are reconnected to the lost and found. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>	2024-04-23 16:55:17 -07:00
Darrick J. Wong	d54c5ac80f	xfs: invalidate dirloop scrub path data when concurrent updates happen ... Add a dirent update hook so that we can detect directory tree updates that affect any of the paths found by this scrubber and force it to rescan. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>	2024-04-23 16:55:16 -07:00
Darrick J. Wong	928b721a11	xfs: teach online scrub to find directory tree structure problems ... Create a new scrubber that detects corruptions within the directory tree structure itself. It can detect directories with multiple parents; loops within the directory tree; and directory loops not accessible from the root. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>	2024-04-23 16:55:16 -07:00