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authorCatalin Marinas <catalin.marinas@arm.com>2009-06-11 13:23:18 +0100
committerCatalin Marinas <catalin.marinas@arm.com>2009-06-11 17:03:30 +0100
commit06f22f13f3cc2eff00db09f053218e5d4b757bc8 (patch)
treeec913d87a0ed78912e22c78ce03d65f9ebd7061d /mm
parent4374e616d28e65265a5b433ceece275449f3d2e3 (diff)
downloadop-kernel-dev-06f22f13f3cc2eff00db09f053218e5d4b757bc8.zip
op-kernel-dev-06f22f13f3cc2eff00db09f053218e5d4b757bc8.tar.gz
kmemleak: Add the slub memory allocation/freeing hooks
This patch adds the callbacks to kmemleak_(alloc|free) functions from the slub allocator. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Christoph Lameter <cl@linux-foundation.org> Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi>
Diffstat (limited to 'mm')
-rw-r--r--mm/slub.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/mm/slub.c b/mm/slub.c
index 5e805a6..6674a79 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -20,6 +20,7 @@
#include <linux/kmemtrace.h>
#include <linux/cpu.h>
#include <linux/cpuset.h>
+#include <linux/kmemleak.h>
#include <linux/mempolicy.h>
#include <linux/ctype.h>
#include <linux/debugobjects.h>
@@ -143,7 +144,7 @@
* Set of flags that will prevent slab merging
*/
#define SLUB_NEVER_MERGE (SLAB_RED_ZONE | SLAB_POISON | SLAB_STORE_USER | \
- SLAB_TRACE | SLAB_DESTROY_BY_RCU)
+ SLAB_TRACE | SLAB_DESTROY_BY_RCU | SLAB_NOLEAKTRACE)
#define SLUB_MERGE_SAME (SLAB_DEBUG_FREE | SLAB_RECLAIM_ACCOUNT | \
SLAB_CACHE_DMA)
@@ -1617,6 +1618,7 @@ static __always_inline void *slab_alloc(struct kmem_cache *s,
if (unlikely((gfpflags & __GFP_ZERO) && object))
memset(object, 0, objsize);
+ kmemleak_alloc_recursive(object, objsize, 1, s->flags, gfpflags);
return object;
}
@@ -1746,6 +1748,7 @@ static __always_inline void slab_free(struct kmem_cache *s,
struct kmem_cache_cpu *c;
unsigned long flags;
+ kmemleak_free_recursive(x, s->flags);
local_irq_save(flags);
c = get_cpu_slab(s, smp_processor_id());
debug_check_no_locks_freed(object, c->objsize);
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