diff --git a/[refs] b/[refs]
index d8ba65b34df4..56f537da099c 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a6a352e93dfa78db8903f0e3610abb76efbf7fc9
+refs/heads/master: e148582e10a2c1a23dfc09210df4a18bc6cca4e9
diff --git a/trunk/fs/nfs/nfs4proc.c b/trunk/fs/nfs/nfs4proc.c
index 35bfcced2c75..1712d0360ee6 100644
--- a/trunk/fs/nfs/nfs4proc.c
+++ b/trunk/fs/nfs/nfs4proc.c
@@ -2711,11 +2711,15 @@ static int nfs4_wait_clnt_recover(struct rpc_clnt *clnt, struct nfs_client *clp)
 
 	might_sleep();
 
+	rwsem_acquire(&clp->cl_sem.dep_map, 0, 0, _RET_IP_);
+
 	rpc_clnt_sigmask(clnt, &oldset);
 	res = wait_on_bit(&clp->cl_state, NFS4CLNT_STATE_RECOVER,
 			nfs4_wait_bit_interruptible,
 			TASK_INTERRUPTIBLE);
 	rpc_clnt_sigunmask(clnt, &oldset);
+
+	rwsem_release(&clp->cl_sem.dep_map, 1, _RET_IP_);
 	return res;
 }