diff --git a/[refs] b/[refs]
index 15c905eed121..27afceb31e2d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 677243d7494d09bfa782425f063a6013de53c35b
+refs/heads/master: 9329ba9704f6bd51a735982e0d4a3eed72c3294f
diff --git a/trunk/mm/percpu.c b/trunk/mm/percpu.c
index 0cd4bf61012c..12dea33572bd 100644
--- a/trunk/mm/percpu.c
+++ b/trunk/mm/percpu.c
@@ -826,8 +826,8 @@ static void __percpu *pcpu_alloc(size_t size, size_t align, bool reserved)
  * @size: size of area to allocate in bytes
  * @align: alignment of area (max PAGE_SIZE)
  *
- * Allocate percpu area of @size bytes aligned at @align.  Might
- * sleep.  Might trigger writeouts.
+ * Allocate zero-filled percpu area of @size bytes aligned at @align.
+ * Might sleep.  Might trigger writeouts.
  *
  * CONTEXT:
  * Does GFP_KERNEL allocation.
@@ -846,9 +846,10 @@ EXPORT_SYMBOL_GPL(__alloc_percpu);
  * @size: size of area to allocate in bytes
  * @align: alignment of area (max PAGE_SIZE)
  *
- * Allocate percpu area of @size bytes aligned at @align from reserved
- * percpu area if arch has set it up; otherwise, allocation is served
- * from the same dynamic area.  Might sleep.  Might trigger writeouts.
+ * Allocate zero-filled percpu area of @size bytes aligned at @align
+ * from reserved percpu area if arch has set it up; otherwise,
+ * allocation is served from the same dynamic area.  Might sleep.
+ * Might trigger writeouts.
  *
  * CONTEXT:
  * Does GFP_KERNEL allocation.