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SUNRPC: Ensure xs_reset_transport() resets the close connection flags

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Otherwise, we may end up looping.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust 2015-02-08 18:35:25 -05:00
parent 76698b2358
commit 6cc7e90836
1 changed files with 13 additions and 16 deletions
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29
net/sunrpc/xprtsock.c
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@ -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);