SUNRPC: Enable the keepalive option for TCP sockets
For NFSv4 we want to avoid retransmitting RPC calls unless the TCP connection breaks. However we still want to detect TCP connection breakage as soon as possible. Do this by setting the keepalive option with the idle timeout and count set to the 'timeo' and 'retrans' mount options. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
parent
a6f951ddbd
commit
7f260e8575
|
@ -2112,6 +2112,19 @@ static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock)
|
|||
|
||||
if (!transport->inet) {
|
||||
struct sock *sk = sock->sk;
|
||||
unsigned int keepidle = xprt->timeout->to_initval / HZ;
|
||||
unsigned int keepcnt = xprt->timeout->to_retries + 1;
|
||||
unsigned int opt_on = 1;
|
||||
|
||||
/* TCP Keepalive options */
|
||||
kernel_setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE,
|
||||
(char *)&opt_on, sizeof(opt_on));
|
||||
kernel_setsockopt(sock, SOL_TCP, TCP_KEEPIDLE,
|
||||
(char *)&keepidle, sizeof(keepidle));
|
||||
kernel_setsockopt(sock, SOL_TCP, TCP_KEEPINTVL,
|
||||
(char *)&keepidle, sizeof(keepidle));
|
||||
kernel_setsockopt(sock, SOL_TCP, TCP_KEEPCNT,
|
||||
(char *)&keepcnt, sizeof(keepcnt));
|
||||
|
||||
write_lock_bh(&sk->sk_callback_lock);
|
||||
|
||||
|
|
Loading…
Reference in a new issue