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-rw-r--r--include/linux/slab.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/include/linux/slab.h b/include/linux/slab.h
index c4947b8..66c4640 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -236,7 +236,25 @@ found:
}
return __kmalloc_node(size, flags, node);
}
+
+/*
+ * kmalloc_node_track_caller is a special version of kmalloc_node 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_node 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_node_track_caller(size, flags, node) \
+ __kmalloc_node(size, flags, node)
#else
+extern void *__kmalloc_node_track_caller(size_t, gfp_t, int, void *);
+#define kmalloc_node_track_caller(size, flags, node) \
+ __kmalloc_node_track_caller(size, flags, node, \
+ __builtin_return_address(0))
+#endif
+#else /* CONFIG_NUMA */
static inline void *kmem_cache_alloc_node(kmem_cache_t *cachep, gfp_t flags, int node)
{
return kmem_cache_alloc(cachep, flags);
@@ -245,6 +263,9 @@ static inline void *kmalloc_node(size_t size, gfp_t flags, int node)
{
return kmalloc(size, flags);
}
+
+#define kmalloc_node_track_caller(size, flags, node) \
+ kmalloc_track_caller(size, flags)
#endif
extern int FASTCALL(kmem_cache_reap(int));
@@ -283,6 +304,8 @@ static inline void *kcalloc(size_t n, size_t size, gfp_t flags)
#define kzalloc(s, f) __kzalloc(s, f)
#define kmalloc_track_caller kmalloc
+#define kmalloc_node_track_caller kmalloc_node
+
#endif /* CONFIG_SLOB */
/* System wide caches */
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