From: Ingo Molnar <mingo@elte.hu>
Date: Sat, 10 Feb 2007 09:44:57 +0000 (-0800)
Subject: [PATCH] lockdep: also check for freed locks in kmem_cache_free()
X-Git-Tag: upstream/snapshot3+hdmi~35810^2~366
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=898552c9d807fe59f3ecaf9c300c109358375c12;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

[PATCH] lockdep: also check for freed locks in kmem_cache_free()

kmem_cache_free() was missing the check for freeing held locks.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/mm/slab.c b/mm/slab.c
index 348396d..196df70 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -3751,6 +3751,7 @@ void kmem_cache_free(struct kmem_cache *cachep, void *objp)
 	BUG_ON(virt_to_cache(objp) != cachep);
 
 	local_irq_save(flags);
+	debug_check_no_locks_freed(objp, obj_size(cachep));
 	__cache_free(cachep, objp);
 	local_irq_restore(flags);
 }