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Diffstat (limited to 'net/sunrpc/xprtsock.c')
-rw-r--r--net/sunrpc/xprtsock.c102
1 files changed, 78 insertions, 24 deletions
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index af392d9b9cec..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(). */
@@ -1188,7 +1193,7 @@ static inline void xs_tcp_read_xid(struct sock_xprt *transport, struct xdr_skb_r
char *p;
len = sizeof(transport->tcp_xid) - transport->tcp_offset;
- dprintk("RPC: reading XID (%Zu bytes)\n", len);
+ dprintk("RPC: reading XID (%zu bytes)\n", len);
p = ((char *) &transport->tcp_xid) + transport->tcp_offset;
used = xdr_skb_read_bits(desc, p, len);
transport->tcp_offset += used;
@@ -1219,7 +1224,7 @@ static inline void xs_tcp_read_calldir(struct sock_xprt *transport,
*/
offset = transport->tcp_offset - sizeof(transport->tcp_xid);
len = sizeof(transport->tcp_calldir) - offset;
- dprintk("RPC: reading CALL/REPLY flag (%Zu bytes)\n", len);
+ dprintk("RPC: reading CALL/REPLY flag (%zu bytes)\n", len);
p = ((char *) &transport->tcp_calldir) + offset;
used = xdr_skb_read_bits(desc, p, len);
transport->tcp_offset += used;
@@ -1310,7 +1315,7 @@ static inline void xs_tcp_read_common(struct rpc_xprt *xprt,
return;
}
- dprintk("RPC: XID %08x read %Zd bytes\n",
+ dprintk("RPC: XID %08x read %zd bytes\n",
ntohl(transport->tcp_xid), r);
dprintk("RPC: xprt = %p, tcp_copied = %lu, tcp_offset = %u, "
"tcp_reclen = %u\n", xprt, transport->tcp_copied,
@@ -1456,7 +1461,7 @@ static inline void xs_tcp_read_discard(struct sock_xprt *transport, struct xdr_s
desc->count -= len;
desc->offset += len;
transport->tcp_offset += len;
- dprintk("RPC: discarded %Zu bytes\n", len);
+ dprintk("RPC: discarded %zu bytes\n", len);
xs_tcp_check_fraghdr(transport);
}
@@ -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;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.