diff --git a/[refs] b/[refs]
index 9a1ae072f4c2..7b15b9b59849 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: fbe0825752dc34b505777fd59cde4a6ce832eb16
+refs/heads/master: 20cbc972617069c1ed434f62151e4de57d26ea46
diff --git a/trunk/fs/proc/task_mmu.c b/trunk/fs/proc/task_mmu.c
index ab8ccc9d14ff..05053d701ac5 100644
--- a/trunk/fs/proc/task_mmu.c
+++ b/trunk/fs/proc/task_mmu.c
@@ -476,10 +476,10 @@ static ssize_t clear_refs_write(struct file *file, const char __user *buf,
 		return -ESRCH;
 	mm = get_task_mm(task);
 	if (mm) {
-		static struct mm_walk clear_refs_walk;
-		memset(&clear_refs_walk, 0, sizeof(clear_refs_walk));
-		clear_refs_walk.pmd_entry = clear_refs_pte_range;
-		clear_refs_walk.mm = mm;
+		struct mm_walk clear_refs_walk = {
+			.pmd_entry = clear_refs_pte_range,
+			.mm = mm,
+		};
 		down_read(&mm->mmap_sem);
 		for (vma = mm->mmap; vma; vma = vma->vm_next) {
 			clear_refs_walk.private = vma;