Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 into common/serial-rework

Conflicts:
	arch/sh/kernel/cpu/sh2/setup-sh7619.c
	arch/sh/kernel/cpu/sh2a/setup-mxg.c
	arch/sh/kernel/cpu/sh2a/setup-sh7201.c
	arch/sh/kernel/cpu/sh2a/setup-sh7203.c
	arch/sh/kernel/cpu/sh2a/setup-sh7206.c
	arch/sh/kernel/cpu/sh3/setup-sh7705.c
	arch/sh/kernel/cpu/sh3/setup-sh770x.c
	arch/sh/kernel/cpu/sh3/setup-sh7710.c
	arch/sh/kernel/cpu/sh3/setup-sh7720.c
	arch/sh/kernel/cpu/sh4/setup-sh4-202.c
	arch/sh/kernel/cpu/sh4/setup-sh7750.c
	arch/sh/kernel/cpu/sh4/setup-sh7760.c
	arch/sh/kernel/cpu/sh4a/setup-sh7343.c
	arch/sh/kernel/cpu/sh4a/setup-sh7366.c
	arch/sh/kernel/cpu/sh4a/setup-sh7722.c
	arch/sh/kernel/cpu/sh4a/setup-sh7723.c
	arch/sh/kernel/cpu/sh4a/setup-sh7724.c
	arch/sh/kernel/cpu/sh4a/setup-sh7763.c
	arch/sh/kernel/cpu/sh4a/setup-sh7770.c
	arch/sh/kernel/cpu/sh4a/setup-sh7780.c
	arch/sh/kernel/cpu/sh4a/setup-sh7785.c
	arch/sh/kernel/cpu/sh4a/setup-sh7786.c
	arch/sh/kernel/cpu/sh4a/setup-shx3.c
	arch/sh/kernel/cpu/sh5/setup-sh5.c
	drivers/serial/sh-sci.c
	drivers/serial/sh-sci.h
	include/linux/serial_sci.h

1 files changed, 84 insertions, 18 deletions

diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index 7db1de0497c..385b6095fdc 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -10,14 +10,77 @@
 #include <linux/module.h>
 #include <linux/socket.h>
 #include <linux/netdevice.h>
+#include <linux/ratelimit.h>
+#include <linux/vmalloc.h>
 #include <linux/init.h>
+#include <linux/slab.h>
+
 #include <net/ip.h>
 #include <net/sock.h>
 
+#ifdef CONFIG_RPS
+static int rps_sock_flow_sysctl(ctl_table *table, int write,
+				void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	unsigned int orig_size, size;
+	int ret, i;
+	ctl_table tmp = {
+		.data = &size,
+		.maxlen = sizeof(size),
+		.mode = table->mode
+	};
+	struct rps_sock_flow_table *orig_sock_table, *sock_table;
+	static DEFINE_MUTEX(sock_flow_mutex);
+
+	mutex_lock(&sock_flow_mutex);
+
+	orig_sock_table = rcu_dereference_protected(rps_sock_flow_table,
+					lockdep_is_held(&sock_flow_mutex));
+	size = orig_size = orig_sock_table ? orig_sock_table->mask + 1 : 0;
+
+	ret = proc_dointvec(&tmp, write, buffer, lenp, ppos);
+
+	if (write) {
+		if (size) {
+			if (size > 1<<30) {
+				/* Enforce limit to prevent overflow */
+				mutex_unlock(&sock_flow_mutex);
+				return -EINVAL;
+			}
+			size = roundup_pow_of_two(size);
+			if (size != orig_size) {
+				sock_table =
+				    vmalloc(RPS_SOCK_FLOW_TABLE_SIZE(size));
+				if (!sock_table) {
+					mutex_unlock(&sock_flow_mutex);
+					return -ENOMEM;
+				}
+
+				sock_table->mask = size - 1;
+			} else
+				sock_table = orig_sock_table;
+
+			for (i = 0; i < size; i++)
+				sock_table->ents[i] = RPS_NO_CPU;
+		} else
+			sock_table = NULL;
+
+		if (sock_table != orig_sock_table) {
+			rcu_assign_pointer(rps_sock_flow_table, sock_table);
+			synchronize_rcu();
+			vfree(orig_sock_table);
+		}
+	}
+
+	mutex_unlock(&sock_flow_mutex);
+
+	return ret;
+}
+#endif /* CONFIG_RPS */
+
 static struct ctl_table net_core_table[] = {
 #ifdef CONFIG_NET
 	{
-		.ctl_name	= NET_CORE_WMEM_MAX,
 		.procname	= "wmem_max",
 		.data		= &sysctl_wmem_max,
 		.maxlen		= sizeof(int),
@@ -25,7 +88,6 @@ static struct ctl_table net_core_table[] = {
 		.proc_handler	= proc_dointvec
 	},
 	{
-		.ctl_name	= NET_CORE_RMEM_MAX,
 		.procname	= "rmem_max",
 		.data		= &sysctl_rmem_max,
 		.maxlen		= sizeof(int),
@@ -33,7 +95,6 @@ static struct ctl_table net_core_table[] = {
 		.proc_handler	= proc_dointvec
 	},
 	{
-		.ctl_name	= NET_CORE_WMEM_DEFAULT,
 		.procname	= "wmem_default",
 		.data		= &sysctl_wmem_default,
 		.maxlen		= sizeof(int),
@@ -41,7 +102,6 @@ static struct ctl_table net_core_table[] = {
 		.proc_handler	= proc_dointvec
 	},
 	{
-		.ctl_name	= NET_CORE_RMEM_DEFAULT,
 		.procname	= "rmem_default",
 		.data		= &sysctl_rmem_default,
 		.maxlen		= sizeof(int),
@@ -49,7 +109,6 @@ static struct ctl_table net_core_table[] = {
 		.proc_handler	= proc_dointvec
 	},
 	{
-		.ctl_name	= NET_CORE_DEV_WEIGHT,
 		.procname	= "dev_weight",
 		.data		= &weight_p,
 		.maxlen		= sizeof(int),
@@ -57,7 +116,6 @@ static struct ctl_table net_core_table[] = {
 		.proc_handler	= proc_dointvec
 	},
 	{
-		.ctl_name	= NET_CORE_MAX_BACKLOG,
 		.procname	= "netdev_max_backlog",
 		.data		= &netdev_max_backlog,
 		.maxlen		= sizeof(int),
@@ -65,16 +123,20 @@ static struct ctl_table net_core_table[] = {
 		.proc_handler	= proc_dointvec
 	},
 	{
-		.ctl_name	= NET_CORE_MSG_COST,
+		.procname	= "netdev_tstamp_prequeue",
+		.data		= &netdev_tstamp_prequeue,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec
+	},
+	{
 		.procname	= "message_cost",
 		.data		= &net_ratelimit_state.interval,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec_jiffies,
-		.strategy	= sysctl_jiffies,
 	},
 	{
-		.ctl_name	= NET_CORE_MSG_BURST,
 		.procname	= "message_burst",
 		.data		= &net_ratelimit_state.burst,
 		.maxlen		= sizeof(int),
@@ -82,16 +144,22 @@ static struct ctl_table net_core_table[] = {
 		.proc_handler	= proc_dointvec,
 	},
 	{
-		.ctl_name	= NET_CORE_OPTMEM_MAX,
 		.procname	= "optmem_max",
 		.data		= &sysctl_optmem_max,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec
 	},
+#ifdef CONFIG_RPS
+	{
+		.procname	= "rps_sock_flow_entries",
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= rps_sock_flow_sysctl
+	},
+#endif
 #endif /* CONFIG_NET */
 	{
-		.ctl_name	= NET_CORE_BUDGET,
 		.procname	= "netdev_budget",
 		.data		= &netdev_budget,
 		.maxlen		= sizeof(int),
@@ -99,31 +167,29 @@ static struct ctl_table net_core_table[] = {
 		.proc_handler	= proc_dointvec
 	},
 	{
-		.ctl_name	= NET_CORE_WARNINGS,
 		.procname	= "warnings",
 		.data		= &net_msg_warn,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec
 	},
-	{ .ctl_name = 0 }
+	{ }
 };
 
 static struct ctl_table netns_core_table[] = {
 	{
-		.ctl_name	= NET_CORE_SOMAXCONN,
 		.procname	= "somaxconn",
 		.data		= &init_net.core.sysctl_somaxconn,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec
 	},
-	{ .ctl_name = 0 }
+	{ }
 };
 
 __net_initdata struct ctl_path net_core_path[] = {
-	{ .procname = "net", .ctl_name = CTL_NET, },
-	{ .procname = "core", .ctl_name = NET_CORE, },
+	{ .procname = "net", },
+	{ .procname = "core", },
 	{ },
 };
 
@@ -134,7 +200,7 @@ static __net_init int sysctl_core_net_init(struct net *net)
 	net->core.sysctl_somaxconn = SOMAXCONN;
 
 	tbl = netns_core_table;
-	if (net != &init_net) {
+	if (!net_eq(net, &init_net)) {
 		tbl = kmemdup(tbl, sizeof(netns_core_table), GFP_KERNEL);
 		if (tbl == NULL)
 			goto err_dup;