diff --git a/[refs] b/[refs]
index 795398cd9545..4eaa7d5dc2a7 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 30e49c263e36341b60b735cbef5ca37912549264
+refs/heads/master: 130f77ecb2e7d5ac3e53e620f55e374f4a406b20
diff --git a/trunk/fs/proc/base.c b/trunk/fs/proc/base.c
index 50e149e08d96..5e0c6a1ce8b3 100644
--- a/trunk/fs/proc/base.c
+++ b/trunk/fs/proc/base.c
@@ -2259,8 +2259,22 @@ static void proc_flush_task_mnt(struct vfsmount *mnt, pid_t pid, pid_t tgid)
 
 void proc_flush_task(struct task_struct *task)
 {
-	proc_flush_task_mnt(proc_mnt, task->pid,
-			thread_group_leader(task) ? 0 : task->tgid);
+	int i, leader;
+	struct pid *pid, *tgid;
+	struct upid *upid;
+
+	leader = thread_group_leader(task);
+	proc_flush_task_mnt(proc_mnt, task->pid, leader ? task->tgid : 0);
+	pid = task_pid(task);
+	if (pid->level == 0)
+		return;
+
+	tgid = task_tgid(task);
+	for (i = 1; i <= pid->level; i++) {
+		upid = &pid->numbers[i];
+		proc_flush_task_mnt(upid->ns->proc_mnt, upid->nr,
+				leader ? 0 : tgid->numbers[i].nr);
+	}
 }
 
 static struct dentry *proc_pid_instantiate(struct inode *dir,