SUNRPC: Clean up the transport timeout initialisation

Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>

include/linux/sunrpc/xprt.h

@@ -202,11 +202,6 @@ struct xprt_class {
 	char			name[32];
 };
 
-/*
- * Transport operations used by ULPs
- */
-void			xprt_set_timeout(struct rpc_timeout *to, unsigned int retr, unsigned long incr);
-
 /*
  * Generic internal transport functions
  */

net/sunrpc/xprt.c

@@ -977,23 +977,6 @@ void xprt_release(struct rpc_task *task)
 	spin_unlock(&xprt->reserve_lock);
 }
 
-/**
- * xprt_set_timeout - set constant RPC timeout
- * @to: RPC timeout parameters to set up
- * @retr: number of retries
- * @incr: amount of increase after each retry
- *
- */
-void xprt_set_timeout(struct rpc_timeout *to, unsigned int retr, unsigned long incr)
-{
-	to->to_initval   =
-	to->to_increment = incr;
-	to->to_maxval    = to->to_initval + (incr * retr);
-	to->to_retries   = retr;
-	to->to_exponential = 0;
-}
-EXPORT_SYMBOL_GPL(xprt_set_timeout);
-
 /**
  * xprt_create_transport - create an RPC transport
  * @args: rpc transport creation arguments

net/sunrpc/xprtrdma/transport.c

@@ -289,6 +289,11 @@ xprt_rdma_destroy(struct rpc_xprt *xprt)
 	module_put(THIS_MODULE);
 }
 
+static const struct rpc_timeout xprt_rdma_default_timeout = {
+	.to_initval = 60 * HZ,
+	.to_maxval = 60 * HZ,
+};
+
 /**
  * xprt_setup_rdma - Set up transport to use RDMA
  *
@@ -327,7 +332,7 @@ xprt_setup_rdma(struct xprt_create *args)
 	}
 
 	/* 60 second timeout, no retries */
-	xprt_set_timeout(&xprt->timeout, 0, 60UL * HZ);
+	memcpy(&xprt->timeout, &xprt_rdma_default_timeout, sizeof(xprt->timeout));
 	xprt->bind_timeout = (60U * HZ);
 	xprt->connect_timeout = (60U * HZ);
 	xprt->reestablish_timeout = (5U * HZ);

net/sunrpc/xprtsock.c

@@ -1895,6 +1895,13 @@ static struct rpc_xprt *xs_setup_xprt(struct xprt_create *args,
 	return xprt;
 }
 
+static const struct rpc_timeout xs_udp_default_timeout = {
+	.to_initval = 5 * HZ,
+	.to_maxval = 30 * HZ,
+	.to_increment = 5 * HZ,
+	.to_retries = 5,
+};
+
 /**
  * xs_setup_udp - Set up transport to use a UDP socket
  * @args: rpc transport creation arguments
@@ -1905,6 +1912,7 @@ static struct rpc_xprt *xs_setup_udp(struct xprt_create *args)
 	struct sockaddr *addr = args->dstaddr;
 	struct rpc_xprt *xprt;
 	struct sock_xprt *transport;
+	const struct rpc_timeout *timeo = &xs_udp_default_timeout;
 
 	xprt = xs_setup_xprt(args, xprt_udp_slot_table_entries);
 	if (IS_ERR(xprt))
@@ -1923,10 +1931,9 @@ static struct rpc_xprt *xs_setup_udp(struct xprt_create *args)
 
 	xprt->ops = &xs_udp_ops;
 
-	if (args->timeout)
-		xprt->timeout = *args->timeout;
-	else
-		xprt_set_timeout(&xprt->timeout, 5, 5 * HZ);
+	if (args->timeout != NULL)
+		timeo = args->timeout;
+	memcpy(&xprt->timeout, timeo, sizeof(xprt->timeout));
 
 	switch (addr->sa_family) {
 	case AF_INET:
@@ -1961,6 +1968,12 @@ static struct rpc_xprt *xs_setup_udp(struct xprt_create *args)
 	return ERR_PTR(-EINVAL);
 }
 
+static const struct rpc_timeout xs_tcp_default_timeout = {
+	.to_initval = 60 * HZ,
+	.to_maxval = 60 * HZ,
+	.to_retries = 2,
+};
+
 /**
  * xs_setup_tcp - Set up transport to use a TCP socket
  * @args: rpc transport creation arguments
@@ -1971,6 +1984,7 @@ static struct rpc_xprt *xs_setup_tcp(struct xprt_create *args)
 	struct sockaddr *addr = args->dstaddr;
 	struct rpc_xprt *xprt;
 	struct sock_xprt *transport;
+	const struct rpc_timeout *timeo = &xs_tcp_default_timeout;
 
 	xprt = xs_setup_xprt(args, xprt_tcp_slot_table_entries);
 	if (IS_ERR(xprt))
@@ -1988,10 +2002,9 @@ static struct rpc_xprt *xs_setup_tcp(struct xprt_create *args)
 
 	xprt->ops = &xs_tcp_ops;
 
-	if (args->timeout)
-		xprt->timeout = *args->timeout;
-	else
-		xprt_set_timeout(&xprt->timeout, 2, 60 * HZ);
+	if (args->timeout != NULL)
+		timeo = args->timeout;
+	memcpy(&xprt->timeout, timeo, sizeof(xprt->timeout));
 
 	switch (addr->sa_family) {
 	case AF_INET: