1 files changed, 21 insertions, 11 deletions

diff --git a/include/linux/slab.h b/include/linux/slab.h
index 66d6eb78d1c6..c4947b8a2c03 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -1,5 +1,5 @@
 /*
- * linux/mm/slab.h
+ * linux/include/linux/slab.h
  * Written by Mark Hemment, 1996.
  * (markhe@nextd.demon.co.uk)
  */
@@ -60,7 +60,7 @@ extern void __init kmem_cache_init(void);
 extern kmem_cache_t *kmem_cache_create(const char *, size_t, size_t, unsigned long,
                                        void (*)(void *, kmem_cache_t *, unsigned long),
                                        void (*)(void *, kmem_cache_t *, unsigned long));
-extern int kmem_cache_destroy(kmem_cache_t *);
+extern void kmem_cache_destroy(kmem_cache_t *);
 extern int kmem_cache_shrink(kmem_cache_t *);
 extern void *kmem_cache_alloc(kmem_cache_t *, gfp_t);
 extern void *kmem_cache_zalloc(struct kmem_cache *, gfp_t);
@@ -77,13 +77,6 @@ struct cache_sizes {
 extern struct cache_sizes malloc_sizes[];
 
 extern void *__kmalloc(size_t, gfp_t);
-#ifndef CONFIG_DEBUG_SLAB
-#define ____kmalloc(size, flags) __kmalloc(size, flags)
-#else
-extern void *__kmalloc_track_caller(size_t, gfp_t, void*);
-#define ____kmalloc(size, flags) \
-    __kmalloc_track_caller(size, flags, __builtin_return_address(0))
-#endif
 
 /**
  * kmalloc - allocate memory
@@ -153,6 +146,23 @@ found:
         return __kmalloc(size, flags);
 }
 
+/*
+ * kmalloc_track_caller is a special version of kmalloc that records the
+ * calling function of the routine calling it for slab leak tracking instead
+ * of just the calling function (confusing, eh?).
+ * It's useful when the call to kmalloc comes from a widely-used standard
+ * allocator where we care about the real place the memory allocation
+ * request comes from.
+ */
+#ifndef CONFIG_DEBUG_SLAB
+#define kmalloc_track_caller(size, flags) \
+        __kmalloc(size, flags)
+#else
+extern void *__kmalloc_track_caller(size_t, gfp_t, void*);
+#define kmalloc_track_caller(size, flags) \
+        __kmalloc_track_caller(size, flags, __builtin_return_address(0))
+#endif
+
 extern void *__kzalloc(size_t, gfp_t);
 
 /**
@@ -249,7 +259,7 @@ struct kmem_cache *kmem_cache_create(const char *c, size_t, size_t,
         unsigned long,
         void (*)(void *, struct kmem_cache *, unsigned long),
         void (*)(void *, struct kmem_cache *, unsigned long));
-int kmem_cache_destroy(struct kmem_cache *c);
+void kmem_cache_destroy(struct kmem_cache *c);
 void *kmem_cache_alloc(struct kmem_cache *c, gfp_t flags);
 void *kmem_cache_zalloc(struct kmem_cache *, gfp_t);
 void kmem_cache_free(struct kmem_cache *c, void *b);
@@ -271,7 +281,7 @@ static inline void *kcalloc(size_t n, size_t size, gfp_t flags)
 #define kmem_cache_alloc_node(c, f, n) kmem_cache_alloc(c, f)
 #define kmalloc_node(s, f, n) kmalloc(s, f)
 #define kzalloc(s, f) __kzalloc(s, f)
-#define ____kmalloc kmalloc
+#define kmalloc_track_caller kmalloc
 
 #endif /* CONFIG_SLOB */