diff --git a/[refs] b/[refs]
index 634fb0c65b92..0cf12a358b4f 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: fb967ecc584c20c74a007de749ca597068b0fcac
+refs/heads/master: f4985dc714d7ab1920c5aa502b7f4073fa1b4177
diff --git a/trunk/fs/fcntl.c b/trunk/fs/fcntl.c
index 51e11bf5708f..9d175d623aab 100644
--- a/trunk/fs/fcntl.c
+++ b/trunk/fs/fcntl.c
@@ -733,12 +733,14 @@ static void kill_fasync_rcu(struct fasync_struct *fa, int sig, int band)
 {
 	while (fa) {
 		struct fown_struct *fown;
+		unsigned long flags;
+
 		if (fa->magic != FASYNC_MAGIC) {
 			printk(KERN_ERR "kill_fasync: bad magic number in "
 			       "fasync_struct!\n");
 			return;
 		}
-		spin_lock(&fa->fa_lock);
+		spin_lock_irqsave(&fa->fa_lock, flags);
 		if (fa->fa_file) {
 			fown = &fa->fa_file->f_owner;
 			/* Don't send SIGURG to processes which have not set a
@@ -747,7 +749,7 @@ static void kill_fasync_rcu(struct fasync_struct *fa, int sig, int band)
 			if (!(sig == SIGURG && fown->signum == 0))
 				send_sigio(fown, fa->fa_fd, band);
 		}
-		spin_unlock(&fa->fa_lock);
+		spin_unlock_irqrestore(&fa->fa_lock, flags);
 		fa = rcu_dereference(fa->fa_next);
 	}
 }