Merge davem@nuts.davemloft.net:/disk1/BK/net-2.6

into kernel.bkbits.net:/home/davem/net-2.6

include/linux/netfilter_arp.h

@@ -17,5 +17,4 @@
 #define NF_ARP_FORWARD	2
 #define NF_ARP_NUMHOOKS	3
 
-static DECLARE_MUTEX(arpt_mutex);
 #endif /* __LINUX_ARP_NETFILTER_H */

include/linux/tcp.h

@@ -183,6 +183,9 @@ struct tcp_info
 	__u32	tcpi_snd_cwnd;
 	__u32	tcpi_advmss;
 	__u32	tcpi_reordering;
+
+	__u32	tcpi_rcv_rtt;
+	__u32	tcpi_rcv_space;
 };
 
 #ifdef __KERNEL__
@@ -351,11 +354,11 @@ struct tcp_opt {
 	__u8	urg_mode;	/* In urgent mode		*/
 	__u32	snd_up;		/* Urgent pointer		*/
 
-	/* The syn_wait_lock is necessary only to avoid tcp_get_info having
+	/* The syn_wait_lock is necessary only to avoid proc interface having
 	 * to grab the main lock sock while browsing the listening hash
 	 * (otherwise it's deadlock prone).
-	 * This lock is acquired in read mode only from tcp_get_info() and
-	 * it's acquired in write mode _only_ from code that is actively
+	 * This lock is acquired in read mode only from listening_get_next()
+	 * and it's acquired in write mode _only_ from code that is actively
 	 * changing the syn_wait_queue. All readers that are holding
 	 * the master sock lock don't need to grab this lock in read mode
 	 * too as the syn_wait_queue writes are always protected from

net/ipv4/netfilter/arp_tables.c

@@ -62,6 +62,8 @@ do {								\
 #include <linux/netfilter_ipv4/lockhelp.h>
 #include <linux/netfilter_ipv4/listhelp.h>
 
+static DECLARE_MUTEX(arpt_mutex);
+
 struct arpt_table_info {
 	unsigned int size;
 	unsigned int number;

net/ipv4/tcp_diag.c

@@ -91,6 +91,9 @@ void tcp_get_info(struct sock *sk, struct tcp_info *info)
 	info->tcpi_snd_cwnd = tp->snd_cwnd;
 	info->tcpi_advmss = tp->advmss;
 	info->tcpi_reordering = tp->reordering;
+
+	info->tcpi_rcv_rtt = ((1000000*tp->rcv_rtt_est.rtt)/HZ)>>3;
+	info->tcpi_rcv_space = tp->rcvq_space.space;
 }
 
 static int tcpdiag_fill(struct sk_buff *skb, struct sock *sk,