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authorTrond Myklebust <trond.myklebust@hammerspace.com>2021-08-24 11:38:18 -0400
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2021-08-27 16:36:21 -0400
commit7c81e6a9d75bd2c094005b64b442cec729dbdf66 (patch)
tree27a2022671c1c97d3c8552b49502126c96d8ee67 /net
parent0a6ff58edbfb26469a095ab964095506352fc960 (diff)
downloadlinux-7c81e6a9d75bd2c094005b64b442cec729dbdf66.tar.gz
linux-7c81e6a9d75bd2c094005b64b442cec729dbdf66.tar.xz
SUNRPC: Tweak TCP socket shutdown in the RPC client
We only really need to call shutdown() if we're in the ESTABLISHED TCP state, since that is the only case where the client is initiating a close of an established connection. If the socket is in FIN_WAIT1 or FIN_WAIT2, then we've already initiated socket shutdown and are waiting for the server's reply, so do nothing. In all other cases where we've already received a FIN from the server, we should be able to just close the socket. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net')
-rw-r--r--net/sunrpc/xprtsock.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 5fb969f8a5ad..d80793a1b75c 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -2104,12 +2104,15 @@ static void xs_tcp_shutdown(struct rpc_xprt *xprt)
return;
}
switch (skst) {
- default:
+ case TCP_FIN_WAIT1:
+ case TCP_FIN_WAIT2:
+ break;
+ case TCP_ESTABLISHED:
+ case TCP_CLOSE_WAIT:
kernel_sock_shutdown(sock, SHUT_RDWR);
trace_rpc_socket_shutdown(xprt, sock);
break;
- case TCP_CLOSE:
- case TCP_TIME_WAIT:
+ default:
xs_reset_transport(transport);
}
}