NFSv4.2: make LAYOUTSTATS and LAYOUTERROR MOVEABLE

LAYOUTSTATS and LAYOUTERROR should be marked MOVEABLE for when we
need to move tasks off a non-functional transport.

Signed-off-by: Olga Kornievskaia <okorniev@redhat.com>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>

Author: Olga Kornievskaia

fs/nfs/nfs42proc.c

@@ -861,7 +861,7 @@ int nfs42_proc_layoutstats_generic(struct nfs_server *server,
 		.rpc_message = &msg,
 		.callback_ops = &nfs42_layoutstat_ops,
 		.callback_data = data,
-		.flags = RPC_TASK_ASYNC,
+		.flags = RPC_TASK_ASYNC | RPC_TASK_MOVEABLE,
 	};
 	struct rpc_task *task;
 
@@ -1016,7 +1016,7 @@ int nfs42_proc_layouterror(struct pnfs_layout_segment *lseg,
 	struct rpc_task_setup task_setup = {
 		.rpc_message = &msg,
 		.callback_ops = &nfs42_layouterror_ops,
-		.flags = RPC_TASK_ASYNC,
+		.flags = RPC_TASK_ASYNC | RPC_TASK_MOVEABLE,
 	};
 	unsigned int i;