mm/slab: Fix kmem_cache_alloc_node_trace() declaration

This bug was introduced in commit 4052147c ("mm, slab: Match SLAB and
SLUB kmem_cache_alloc_xxx_trace() prototype").

Cc: David Rientjes <rientjes@google.com>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>

include/linux/slab_def.h

@@ -159,16 +159,16 @@ extern void *__kmalloc_node(size_t size, gfp_t flags, int node);
 extern void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node);
 
 #ifdef CONFIG_TRACING
-extern void *kmem_cache_alloc_node_trace(size_t size,
-					 struct kmem_cache *cachep,
+extern void *kmem_cache_alloc_node_trace(struct kmem_cache *cachep,
 					 gfp_t flags,
-					 int nodeid);
+					 int nodeid,
+					 size_t size);
 #else
 static __always_inline void *
-kmem_cache_alloc_node_trace(size_t size,
-			    struct kmem_cache *cachep,
+kmem_cache_alloc_node_trace(struct kmem_cache *cachep,
 			    gfp_t flags,
-			    int nodeid)
+			    int nodeid,
+			    size_t size)
 {
 	return kmem_cache_alloc_node(cachep, flags, nodeid);
 }
@@ -200,7 +200,7 @@ static __always_inline void *kmalloc_node(size_t size, gfp_t flags, int node)
 #endif
 			cachep = malloc_sizes[i].cs_cachep;
 
-		return kmem_cache_alloc_node_trace(size, cachep, flags, node);
+		return kmem_cache_alloc_node_trace(cachep, flags, node, size);
 	}
 	return __kmalloc_node(size, flags, node);
 }