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authorXiaotian Feng <dfeng@redhat.com>2010-06-30 17:57:22 +0800
committerPekka Enberg <penberg@cs.helsinki.fi>2010-07-04 19:48:33 +0300
commit7adde04a2f5a798f04a556dfb3b69bff388e5dc4 (patch)
treeea64a2536a8bbe91b34ab3f8f16a795d64429b85 /include/linux/slab.h
parent7e27d6e778cd87b6f2415515d7127eba53fe5d02 (diff)
downloadlwn-7adde04a2f5a798f04a556dfb3b69bff388e5dc4.tar.gz
lwn-7adde04a2f5a798f04a556dfb3b69bff388e5dc4.zip
slab: fix caller tracking on !CONFIG_DEBUG_SLAB && CONFIG_TRACING
In slab, all __xxx_track_caller is defined on CONFIG_DEBUG_SLAB || CONFIG_TRACING, thus caller tracking function should be worked for CONFIG_TRACING. But if CONFIG_DEBUG_SLAB is not set, include/linux/slab.h will define xxx_track_caller to __xxx() without consideration of CONFIG_TRACING. This will break the caller tracking behaviour then. Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Matt Mackall <mpm@selenic.com> Cc: Vegard Nossum <vegard.nossum@gmail.com> Cc: Dmitry Monakhov <dmonakhov@openvz.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Xiaotian Feng <dfeng@redhat.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Diffstat (limited to 'include/linux/slab.h')
-rw-r--r--include/linux/slab.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/slab.h b/include/linux/slab.h
index 49d1247cd6d9..59260e21bdf5 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -268,7 +268,8 @@ static inline void *kmem_cache_alloc_node(struct kmem_cache *cachep,
* allocator where we care about the real place the memory allocation
* request comes from.
*/
-#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB)
+#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB) || \
+ (defined(CONFIG_SLAB) && 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_)
@@ -286,7 +287,8 @@ extern void *__kmalloc_track_caller(size_t, gfp_t, unsigned long);
* standard allocator where we care about the real place the memory
* allocation request comes from.
*/
-#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB)
+#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB) || \
+ (defined(CONFIG_SLAB) && 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, \