diff options
| author | Christoph Lameter <clameter@sgi.com> | 2007-05-09 02:32:37 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-09 12:30:44 -0700 |
| commit | abcd08a6f564171ffa05bc77d1c2ba4cfa949653 (patch) | |
| tree | 10760411326e881329851707e93aebd8c6782737 /mm | |
| parent | a87615b8f9e2349f6d3770af3d72fd6a41ab4239 (diff) | |
| download | lwn-abcd08a6f564171ffa05bc77d1c2ba4cfa949653.tar.gz lwn-abcd08a6f564171ffa05bc77d1c2ba4cfa949653.zip | |
SLUB: use check_valid_pointer in kmem_ptr_validate
We needlessly duplicate code. Also make check_valid_pointer inline.
Signed-off-by: Christoph LAemter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/slub.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/mm/slub.c b/mm/slub.c index beac34a5e4fd..1832ae1ea536 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -405,9 +405,8 @@ static int check_bytes(u8 *start, unsigned int value, unsigned int bytes) return 1; } - -static int check_valid_pointer(struct kmem_cache *s, struct page *page, - void *object) +static inline int check_valid_pointer(struct kmem_cache *s, + struct page *page, const void *object) { void *base; @@ -1796,13 +1795,7 @@ int kmem_ptr_validate(struct kmem_cache *s, const void *object) /* No slab or wrong slab */ return 0; - addr = page_address(page); - if (object < addr || object >= addr + s->objects * s->size) - /* Out of bounds */ - return 0; - - if ((object - addr) % s->size) - /* Improperly aligned */ + if (!check_valid_pointer(s, page, object)) return 0; /* |