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mm, slob: Add support for kmalloc_track_caller()

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Currently slob falls back to regular kmalloc for this case.
With this patch kmalloc_track_caller() is correctly implemented,
thus tracing the specified caller.

This is important to trace accurately allocations performed by
krealloc, kstrdup, kmemdup, etc.

Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
This commit is contained in:
Ezequiel Garcia 2012-09-08 17:47:53 -03:00 • committed by Pekka Enberg
parent ff4fcd01ec
commit f3f7410195
2 changed files with 28 additions and 5 deletions
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6
include/linux/slab.h
View file

@ -321,7 +321,8 @@ static inline void *kmem_cache_alloc_node(struct kmem_cache *cachep,
* request comes from.
*/
#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB) || \
(defined(CONFIG_SLAB) && defined(CONFIG_TRACING))
(defined(CONFIG_SLAB) && defined(CONFIG_TRACING)) || \
(defined(CONFIG_SLOB) && defined(CONFIG_TRACING))
extern void *__kmalloc_track_caller(size_t, gfp_t, unsigned long);
#define kmalloc_track_caller(size, flags) \
__kmalloc_track_caller(size, flags, _RET_IP_)
@ -340,7 +341,8 @@ extern void *__kmalloc_track_caller(size_t, gfp_t, unsigned long);
* allocation request comes from.
*/
#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB) || \
(defined(CONFIG_SLAB) && defined(CONFIG_TRACING))
(defined(CONFIG_SLAB) && defined(CONFIG_TRACING)) || \
(defined(CONFIG_SLOB) && defined(CONFIG_TRACING))
extern void *__kmalloc_node_track_caller(size_t, gfp_t, int, unsigned long);
#define kmalloc_node_track_caller(size, flags, node) \
__kmalloc_node_track_caller(size, flags, node, \