diff --git a/[refs] b/[refs]
index 38f00faae782..845332b9d81b 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 32797f976d62af709943aae38a9457b5a6dbcd8a
+refs/heads/master: 0ae26f1b3159f3acb21ae1e866c3c7e16edd450f
diff --git a/trunk/kernel/fork.c b/trunk/kernel/fork.c
index ac8100e3088a..195958a3a4d6 100644
--- a/trunk/kernel/fork.c
+++ b/trunk/kernel/fork.c
@@ -368,6 +368,8 @@ void fastcall __mmdrop(struct mm_struct *mm)
  */
 void mmput(struct mm_struct *mm)
 {
+	might_sleep();
+
 	if (atomic_dec_and_test(&mm->mm_users)) {
 		exit_aio(mm);
 		exit_mmap(mm);