SUNRPC: Allow sockets to do GFP_NOIO allocations

Follow up to commit c4a7ca77 ("SUNRPC: Allow waiting on memory
allocation"). Allows the RPC socket code to do non-IO blocking.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

net/sunrpc/xprtsock.c

@@ -1866,7 +1866,7 @@ static int xs_local_finish_connecting(struct rpc_xprt *xprt,
 		sk->sk_data_ready = xs_local_data_ready;
 		sk->sk_write_space = xs_udp_write_space;
 		sk->sk_error_report = xs_error_report;
-		sk->sk_allocation = GFP_ATOMIC;
+		sk->sk_allocation = GFP_NOIO;
 
 		xprt_clear_connected(xprt);
 
@@ -2051,7 +2051,7 @@ static void xs_udp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock)
 		sk->sk_user_data = xprt;
 		sk->sk_data_ready = xs_udp_data_ready;
 		sk->sk_write_space = xs_udp_write_space;
-		sk->sk_allocation = GFP_ATOMIC;
+		sk->sk_allocation = GFP_NOIO;
 
 		xprt_set_connected(xprt);
 
@@ -2153,7 +2153,7 @@ static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock)
 		sk->sk_state_change = xs_tcp_state_change;
 		sk->sk_write_space = xs_tcp_write_space;
 		sk->sk_error_report = xs_error_report;
-		sk->sk_allocation = GFP_ATOMIC;
+		sk->sk_allocation = GFP_NOIO;
 
 		/* socket options */
 		sock_reset_flag(sk, SOCK_LINGER);