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>
diff --git a/mm/slub.c b/mm/slub.c
index beac34a..1832ae1 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -405,9 +405,8 @@
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 @@
/* 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;
/*