kernel/linux.git/fs/xfs/scrub/ialloc.c, branch linux-7.1.y

xfs: directly include xfs_platform.h

2026-01-21T11:57:16+00:00

The xfs.h header conflicts with the public xfs.h in xfsprogs, leading to a spurious difference in all shared libxfs files that have to include libxfs_priv.h in userspace. Directly include xfs_platform.h so that we can add a header of the same name to xfsprogs and remove this major annoyance for the shared code. Signed-off-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Signed-off-by: Carlos Maiolino

xfs: return a 64-bit block count from xfs_btree_count_blocks

2024-12-13T01:45:09+00:00

With the nrext64 feature enabled, it's possible for a data fork to have 2^48 extent mappings. Even with a 64k fsblock size, that maps out to a bmbt containing more than 2^32 blocks. Therefore, this predicate must return a u64 count to avoid an integer wraparound that will cause scrub to do the wrong thing. It's unlikely that any such filesystem currently exists, because the incore bmbt would consume more than 64GB of kernel memory on its own, and so far nobody except me has driven a filesystem that far, judging from the lack of complaints. Cc: # v5.19 Fixes: df9ad5cc7a5240 ("xfs: Introduce macros to represent new maximum extent counts for data/attr forks") Signed-off-by: "Darrick J. Wong" Reviewed-by: Christoph Hellwig

xfs: add a generic group pointer to the btree cursor

2024-11-05T21:38:29+00:00

Replace the pag pointers in the type specific union with a generic xfs_group pointer. This prepares for adding realtime group support. Signed-off-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong

xfs: convert remaining trace points to pass pag structures

2024-11-05T21:38:27+00:00

Convert all tracepoints that take [mp,agno] tuples to take a pag argument instead so that decoding only happens when tracepoints are enabled and to clean up the callers. Signed-off-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong

xfs: add a xfs_agino_to_ino helper

2024-11-05T21:38:24+00:00

Add a helpers to convert an agino to an ino based on a pag structure. This provides a simpler conversion and better type safety compared to the existing code that passes the mount structure and the agno separately. Signed-off-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong

xfs: add xfs_agbno_to_fsb and xfs_agbno_to_daddr helpers

2024-11-05T21:38:24+00:00

Add helpers to convert an agbno to a daddr or fsbno based on a pag structure. This provides a simpler conversion and better type safety compared to the existing code that passes the mount structure and the agno separately. Signed-off-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong

xfs: remove xfs_btnum_t

2024-02-22T20:40:51+00:00

The last checks for bc_btnum can be replaced with helpers that check the btree ops. This allows adding new btrees to XFS without having to update a global enum. Signed-off-by: Christoph Hellwig Reviewed-by: Darrick J. Wong [djwong: complete the ops predicates] Signed-off-by: Darrick J. Wong

xfs: remove the which variable in xchk_iallocbt

2024-02-22T20:40:48+00:00

The which variable that holds a btree number is passed to two functions that ignore it and used in a single check that can check the sm_type as well. Remove it to unclutter the code. Signed-off-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong

xfs: repair inode btrees

2023-12-15T18:03:32+00:00

Use the rmapbt to find inode chunks, query the chunks to compute hole and free masks, and with that information rebuild the inobt and finobt. Refer to the case study in Documentation/filesystems/xfs-online-fsck-design.rst for more details. Signed-off-by: Darrick J. Wong Reviewed-by: Dave Chinner Reviewed-by: Christoph Hellwig

xfs: remove trivial bnobt/inobt scrub helpers

2023-12-15T18:03:31+00:00

Christoph Hellwig complained about awkward code in the next two repair patches such as: sc->sm->sm_type = XFS_SCRUB_TYPE_BNOBT; error = xchk_bnobt(sc); This is a little silly, so let's export the xchk_{,i}allocbt functions to the dispatch table in scrub.c directly and get rid of the helpers. Originally I had planned each btree gets its own separate entry point, but since repair doesn't work that way, it no longer makes sense to complicate the call chain that way. Signed-off-by: Darrick J. Wong Reviewed-by: Christoph Hellwig