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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2009-03-11 19:37:58 +0100 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2009-03-11 19:37:58 +0100 |
| commit | 40d2549db5f515e415894def98b49db7d4c56714 (patch) | |
| tree | 6c301c61cd3a9215bf39deee53623e1fd97a895f /net/sunrpc | |
| parent | SUNRPC: Ensure we set XPRT_CLOSING only after we've sent a tcp FIN... (diff) | |
| download | linux-40d2549db5f515e415894def98b49db7d4c56714.tar.xz linux-40d2549db5f515e415894def98b49db7d4c56714.zip | |
SUNRPC: Don't disconnect if a connection is still in progress.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc')
| -rw-r--r-- | net/sunrpc/xprtsock.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index cb4bd93b9211..9d1898f6ee87 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -1613,10 +1613,9 @@ out: * We need to preserve the port number so the reply cache on the server can * find our cached RPC replies when we get around to reconnecting. */ -static void xs_tcp_reuse_connection(struct rpc_xprt *xprt) +static void xs_abort_connection(struct rpc_xprt *xprt, struct sock_xprt *transport) { int result; - struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt); struct sockaddr any; dprintk("RPC: disconnecting xprt %p to reuse port\n", xprt); @@ -1633,6 +1632,17 @@ static void xs_tcp_reuse_connection(struct rpc_xprt *xprt) result); } +static void xs_tcp_reuse_connection(struct rpc_xprt *xprt, struct sock_xprt *transport) +{ + unsigned int state = transport->inet->sk_state; + + if (state == TCP_CLOSE && transport->sock->state == SS_UNCONNECTED) + return; + if ((1 << state) & (TCPF_ESTABLISHED|TCPF_SYN_SENT)) + return; + xs_abort_connection(xprt, transport); +} + static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock) { struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt); @@ -1706,7 +1716,7 @@ static void xs_tcp_connect_worker4(struct work_struct *work) } } else /* "close" the socket, preserving the local port */ - xs_tcp_reuse_connection(xprt); + xs_tcp_reuse_connection(xprt, transport); dprintk("RPC: worker connecting xprt %p to address: %s\n", xprt, xprt->address_strings[RPC_DISPLAY_ALL]); @@ -1766,7 +1776,7 @@ static void xs_tcp_connect_worker6(struct work_struct *work) } } else /* "close" the socket, preserving the local port */ - xs_tcp_reuse_connection(xprt); + xs_tcp_reuse_connection(xprt, transport); dprintk("RPC: worker connecting xprt %p to address: %s\n", xprt, xprt->address_strings[RPC_DISPLAY_ALL]); |