Commit 31364c2e authored by Jules Irenge's avatar Jules Irenge Committed by Linus Torvalds
Browse files

mm/slub: add missing annotation for get_map() 



Sparse reports a warning at get_map()()

 warning: context imbalance in get_map() - wrong count at exit

The root cause is the missing annotation at get_map()
Add the missing __acquires(&object_map_lock) annotation

Signed-off-by: default avatarJules Irenge <jbi.octave@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20200214204741.94112-9-jbi.octave@gmail.com


Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 959a7e13

mm/slub.c

+1 −0
Original line number Diff line number Diff line
@@ -449,6 +449,7 @@ static DEFINE_SPINLOCK(object_map_lock); 
 * not vanish from under us.

 */

static unsigned long *get_map(struct kmem_cache *s, struct page *page)

	__acquires(&object_map_lock)

{

	void *p;

	void *addr = page_address(page);