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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-02-09 00:35:25 +0100 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-02-09 03:47:28 +0100 |
| commit | 6cc7e908362a9dfec3c821f77ec98b6758592060 (patch) | |
| tree | 305503853cae950c4f96e18f11efc2688d38512c | |
| parent | SUNRPC: Do not clear the source port in xs_reset_transport (diff) | |
| download | linux-6cc7e908362a9dfec3c821f77ec98b6758592060.tar.xz linux-6cc7e908362a9dfec3c821f77ec98b6758592060.zip | |
SUNRPC: Ensure xs_reset_transport() resets the close connection flags
Otherwise, we may end up looping.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| -rw-r--r-- | net/sunrpc/xprtsock.c | 29 |
1 files changed, 13 insertions, 16 deletions
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index ea1882f97912..0fa7ed93dc20 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -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); |