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mm/slab.h: fix argument order in cache_from_obj's error message

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While debugging a networking issue, I hit a condition that triggered an
object to be freed into the wrong kmem cache, and thus triggered the
warning in cache_from_obj().

The arguments in the error message are in wrong order: the location
of the object's kmem cache is in cachep, not s.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Daniel Borkmann 2015-09-04 15:45:57 -07:00 committed by Linus Torvalds
parent 45eb00cd3a
commit 2d16e0fd32
1 changed files with 1 additions and 1 deletions
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mm/slab.h
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@ -330,7 +330,7 @@ static inline struct kmem_cache *cache_from_obj(struct kmem_cache *s, void *x)
return cachep;
pr_err("%s: Wrong slab cache. %s but object is from %s\n",
__func__, cachep->name, s->name);
__func__, s->name, cachep->name);
WARN_ON_ONCE(1);
return s;
}