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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-06-20 15:31:54 -0400 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-06-20 15:31:54 -0400 |
| commit | 775f06ab49f5f9e2f6bca9292ef57efa868a0f67 (patch) | |
| tree | 2196da83dff602811963b0883273c670ea602d24 /net/sunrpc | |
| parent | 4876cc779ff525b9c2376d8076edf47815e71f2c (diff) | |
| download | lwn-775f06ab49f5f9e2f6bca9292ef57efa868a0f67.tar.gz lwn-775f06ab49f5f9e2f6bca9292ef57efa868a0f67.zip | |
SUNRPC: Set the TCP user timeout option on client sockets
Use the TCP_USER_TIMEOUT socket option to advertise to the server
how long we will keep the connection open if there is unacknowledged
data. See RFC5482.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'net/sunrpc')
| -rw-r--r-- | net/sunrpc/xprtsock.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index ee0715dfc3c7..ee359fc7af16 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -2117,6 +2117,7 @@ static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock) unsigned int keepidle = xprt->timeout->to_initval / HZ; unsigned int keepcnt = xprt->timeout->to_retries + 1; unsigned int opt_on = 1; + unsigned int timeo; /* TCP Keepalive options */ kernel_setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, @@ -2128,6 +2129,12 @@ static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock) kernel_setsockopt(sock, SOL_TCP, TCP_KEEPCNT, (char *)&keepcnt, sizeof(keepcnt)); + /* TCP user timeout (see RFC5482) */ + timeo = jiffies_to_msecs(xprt->timeout->to_initval) * + (xprt->timeout->to_retries + 1); + kernel_setsockopt(sock, SOL_TCP, TCP_USER_TIMEOUT, + (char *)&timeo, sizeof(timeo)); + write_lock_bh(&sk->sk_callback_lock); xs_save_old_callbacks(transport, sk); |