diff options
Diffstat (limited to 'net/sunrpc/xprtsock.c')
| -rw-r--r-- | net/sunrpc/xprtsock.c | 94 |
1 files changed, 74 insertions, 20 deletions
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 956c7bce80d1..16aff8ddc16f 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -52,6 +52,8 @@ #include "sunrpc.h" static void xs_close(struct rpc_xprt *xprt); +static void xs_tcp_set_socket_timeouts(struct rpc_xprt *xprt, + struct socket *sock); /* * xprtsock tunables @@ -666,6 +668,9 @@ static int xs_tcp_send_request(struct rpc_task *task) if (task->tk_flags & RPC_TASK_SENT) zerocopy = false; + if (test_bit(XPRT_SOCK_UPD_TIMEOUT, &transport->sock_state)) + xs_tcp_set_socket_timeouts(xprt, transport->sock); + /* Continue transmitting the packet/record. We must be careful * to cope with writespace callbacks arriving _after_ we have * called sendmsg(). */ @@ -1734,7 +1739,9 @@ static void xs_udp_set_buffer_size(struct rpc_xprt *xprt, size_t sndsize, size_t */ static void xs_udp_timer(struct rpc_xprt *xprt, struct rpc_task *task) { + spin_lock_bh(&xprt->transport_lock); xprt_adjust_cwnd(xprt, task, -ETIMEDOUT); + spin_unlock_bh(&xprt->transport_lock); } static unsigned short xs_get_random_port(void) @@ -2235,6 +2242,66 @@ static void xs_tcp_shutdown(struct rpc_xprt *xprt) xs_reset_transport(transport); } +static void xs_tcp_set_socket_timeouts(struct rpc_xprt *xprt, + struct socket *sock) +{ + struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt); + unsigned int keepidle; + unsigned int keepcnt; + unsigned int opt_on = 1; + unsigned int timeo; + + spin_lock_bh(&xprt->transport_lock); + keepidle = DIV_ROUND_UP(xprt->timeout->to_initval, HZ); + keepcnt = xprt->timeout->to_retries + 1; + timeo = jiffies_to_msecs(xprt->timeout->to_initval) * + (xprt->timeout->to_retries + 1); + clear_bit(XPRT_SOCK_UPD_TIMEOUT, &transport->sock_state); + spin_unlock_bh(&xprt->transport_lock); + + /* 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)); + + /* TCP user timeout (see RFC5482) */ + kernel_setsockopt(sock, SOL_TCP, TCP_USER_TIMEOUT, + (char *)&timeo, sizeof(timeo)); +} + +static void xs_tcp_set_connect_timeout(struct rpc_xprt *xprt, + unsigned long connect_timeout, + unsigned long reconnect_timeout) +{ + struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt); + struct rpc_timeout to; + unsigned long initval; + + spin_lock_bh(&xprt->transport_lock); + if (reconnect_timeout < xprt->max_reconnect_timeout) + xprt->max_reconnect_timeout = reconnect_timeout; + if (connect_timeout < xprt->connect_timeout) { + memcpy(&to, xprt->timeout, sizeof(to)); + initval = DIV_ROUND_UP(connect_timeout, to.to_retries + 1); + /* Arbitrary lower limit */ + if (initval < XS_TCP_INIT_REEST_TO << 1) + initval = XS_TCP_INIT_REEST_TO << 1; + to.to_initval = initval; + to.to_maxval = initval; + memcpy(&transport->tcp_timeout, &to, + sizeof(transport->tcp_timeout)); + xprt->timeout = &transport->tcp_timeout; + xprt->connect_timeout = connect_timeout; + } + set_bit(XPRT_SOCK_UPD_TIMEOUT, &transport->sock_state); + spin_unlock_bh(&xprt->transport_lock); +} + static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock) { struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt); @@ -2242,22 +2309,8 @@ 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; - unsigned int timeo; unsigned int addr_pref = IPV6_PREFER_SRC_PUBLIC; - /* 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)); - /* Avoid temporary address, they are bad for long-lived * connections such as NFS mounts. * RFC4941, section 3.6 suggests that: @@ -2268,11 +2321,7 @@ static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock) kernel_setsockopt(sock, SOL_IPV6, IPV6_ADDR_PREFERENCES, (char *)&addr_pref, sizeof(addr_pref)); - /* 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)); + xs_tcp_set_socket_timeouts(xprt, sock); write_lock_bh(&sk->sk_callback_lock); @@ -2721,6 +2770,7 @@ static struct rpc_xprt_ops xs_tcp_ops = { .set_retrans_timeout = xprt_set_retrans_timeout_def, .close = xs_tcp_shutdown, .destroy = xs_destroy, + .set_connect_timeout = xs_tcp_set_connect_timeout, .print_stats = xs_tcp_print_stats, .enable_swap = xs_enable_swap, .disable_swap = xs_disable_swap, @@ -3007,6 +3057,8 @@ static struct rpc_xprt *xs_setup_tcp(struct xprt_create *args) xprt->timeout = &xs_tcp_default_timeout; xprt->max_reconnect_timeout = xprt->timeout->to_maxval; + xprt->connect_timeout = xprt->timeout->to_initval * + (xprt->timeout->to_retries + 1); INIT_WORK(&transport->recv_worker, xs_tcp_data_receive_workfn); INIT_DELAYED_WORK(&transport->connect_worker, xs_tcp_setup_socket); @@ -3209,7 +3261,9 @@ static int param_set_uint_minmax(const char *val, if (!val) return -EINVAL; ret = kstrtouint(val, 0, &num); - if (ret == -EINVAL || num < min || num > max) + if (ret) + return ret; + if (num < min || num > max) return -EINVAL; *((unsigned int *)kp->arg) = num; return 0; |