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Commit 6cc7e908 authored by Trond Myklebust's avatar Trond Myklebust
Browse files

SUNRPC: Ensure xs_reset_transport() resets the close connection flags 



Otherwise, we may end up looping.

Signed-off-by: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
parent 76698b23

net/sunrpc/xprtsock.c

+13 −16
Original line number Diff line number Diff line
@@ -803,10 +803,21 @@ static void xs_error_report(struct sock *sk) 
	read_unlock_bh(&sk->sk_callback_lock);

}



static void xs_sock_reset_connection_flags(struct rpc_xprt *xprt)

{

	smp_mb__before_atomic();

	clear_bit(XPRT_CONNECTION_ABORT, &xprt->state);

	clear_bit(XPRT_CONNECTION_CLOSE, &xprt->state);

	clear_bit(XPRT_CLOSE_WAIT, &xprt->state);

	clear_bit(XPRT_CLOSING, &xprt->state);

	smp_mb__after_atomic();

}



static void xs_reset_transport(struct sock_xprt *transport)

{

	struct socket *sock = transport->sock;

	struct sock *sk = transport->inet;

	struct rpc_xprt *xprt = &transport->xprt;



	if (sk == NULL)

		return;
@@ -819,8 +830,9 @@ static void xs_reset_transport(struct sock_xprt *transport) 


	xs_restore_old_callbacks(transport, sk);

	write_unlock_bh(&sk->sk_callback_lock);

	xs_sock_reset_connection_flags(xprt);



	trace_rpc_socket_close(&transport->xprt, sock);

	trace_rpc_socket_close(xprt, sock);

	sock_release(sock);

}
@@ -845,11 +857,6 @@ static void xs_close(struct rpc_xprt *xprt) 
	xs_reset_transport(transport);

	xprt->reestablish_timeout = 0;



	smp_mb__before_atomic();

	clear_bit(XPRT_CONNECTION_ABORT, &xprt->state);

	clear_bit(XPRT_CLOSE_WAIT, &xprt->state);

	clear_bit(XPRT_CLOSING, &xprt->state);

	smp_mb__after_atomic();

	xprt_disconnect_done(xprt);

}
@@ -1455,16 +1462,6 @@ static void xs_tcp_cancel_linger_timeout(struct rpc_xprt *xprt) 
	xprt_clear_connecting(xprt);

}



static void xs_sock_reset_connection_flags(struct rpc_xprt *xprt)

{

	smp_mb__before_atomic();

	clear_bit(XPRT_CONNECTION_ABORT, &xprt->state);

	clear_bit(XPRT_CONNECTION_CLOSE, &xprt->state);

	clear_bit(XPRT_CLOSE_WAIT, &xprt->state);

	clear_bit(XPRT_CLOSING, &xprt->state);

	smp_mb__after_atomic();

}



static void xs_sock_mark_closed(struct rpc_xprt *xprt)

{

	xs_sock_reset_connection_flags(xprt);