diff options
| author | Alexey Dobriyan <adobriyan@gmail.com> | 2018-04-06 01:21:35 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-06 06:36:24 +0200 |
| commit | 284b50ddcf32e3fe1cd39bfc9ad803704e6ca338 (patch) | |
| tree | 47c2092f2a0c34e0e44d31034b368fe2f1913054 /mm/slub.c | |
| parent | slab: make usercopy region 32-bit (diff) | |
| download | linux-284b50ddcf32e3fe1cd39bfc9ad803704e6ca338.tar.xz linux-284b50ddcf32e3fe1cd39bfc9ad803704e6ca338.zip | |
slub: make slab_index() return unsigned int
slab_index() returns index of an object within a slab which is at most
u15 (or u16?).
Iterators additionally guarantee that "p >= addr".
Link: http://lkml.kernel.org/r/20180305200730.15812-22-adobriyan@gmail.com
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/slub.c')
| -rw-r--r-- | mm/slub.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/slub.c b/mm/slub.c index a10cf661cdae..5c5b9aed10a1 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -311,7 +311,7 @@ static inline void set_freepointer(struct kmem_cache *s, void *object, void *fp) __p += (__s)->size, __idx++) /* Determine object index from a given position */ -static inline int slab_index(void *p, struct kmem_cache *s, void *addr) +static inline unsigned int slab_index(void *p, struct kmem_cache *s, void *addr) { return (p - addr) / s->size; } |