From 31364c2e168b48c8596d4d43bad9bff70e21976b Mon Sep 17 00:00:00 2001 From: Jules Irenge Date: Mon, 6 Apr 2020 20:08:15 -0700 Subject: [PATCH] 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: Jules Irenge Signed-off-by: Andrew Morton Link: http://lkml.kernel.org/r/20200214204741.94112-9-jbi.octave@gmail.com Signed-off-by: Linus Torvalds --- mm/slub.c | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/slub.c b/mm/slub.c index 3098e0cf2899..c6d603648c79 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -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); -- 2.30.2