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

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

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: online repair of the realtime refcount btree

2024-12-23T21:06:16+00:00

Port the data device's refcount btree repair code to the realtime refcount btree. Signed-off-by: "Darrick J. Wong" Reviewed-by: Christoph Hellwig

xfs: check reference counts of gaps between rt refcount records

2024-12-23T21:06:15+00:00

If there's a gap between records in the rt refcount btree, we ought to cross-reference the gap with the rtrmap records to make sure that there aren't any overlapping records for a region that doesn't have any shared ownership. Signed-off-by: "Darrick J. Wong" Reviewed-by: Christoph Hellwig

xfs: cross-reference checks with the rt refcount btree

2024-12-23T21:06:14+00:00

Use the realtime refcount btree to implement cross-reference checks in other data structures. Signed-off-by: "Darrick J. Wong" Reviewed-by: Christoph Hellwig

xfs: scrub the realtime refcount btree

2024-12-23T21:06:14+00:00

Add code to scrub realtime refcount btrees. Similar to the refcount btree checking code for the data device, we walk the rmap btree for each refcount record to confirm that the reference counts are correct. Signed-off-by: "Darrick J. Wong" Reviewed-by: Christoph Hellwig