---

yaml
---
r: 300003
b: refs/heads/master
c: b49960a
h: refs/heads/master
i:
  300001: 6347bdb
  299999: f3ec19a
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 84768edbb2721637620b2d84501bb0d5aed603f1
+refs/heads/master: b49960a05e32121d29316cfdf653894b88ac9190

trunk/Documentation/networking/ip-sysctl.txt

@@ -147,7 +147,7 @@ tcp_adv_win_scale - INTEGER
 	(if tcp_adv_win_scale > 0) or bytes-bytes/2^(-tcp_adv_win_scale),
 	if it is <= 0.
 	Possible values are [-31, 31], inclusive.
-	Default: 2
+	Default: 1
 
 tcp_allowed_congestion_control - STRING
 	Show/set the congestion control choices available to non-privileged
@@ -410,7 +410,7 @@ tcp_rmem - vector of 3 INTEGERs: min, default, max
 	net.core.rmem_max.  Calling setsockopt() with SO_RCVBUF disables
 	automatic tuning of that socket's receive buffer size, in which
 	case this value is ignored.
-	Default: between 87380B and 4MB, depending on RAM size.
+	Default: between 87380B and 6MB, depending on RAM size.
 
 tcp_sack - BOOLEAN
 	Enable select acknowledgments (SACKS).

trunk/net/ipv4/tcp.c

@@ -3243,7 +3243,7 @@ void __init tcp_init(void)
 {
 	struct sk_buff *skb = NULL;
 	unsigned long limit;
-	int max_share, cnt;
+	int max_rshare, max_wshare, cnt;
 	unsigned int i;
 	unsigned long jiffy = jiffies;
 
@@ -3303,15 +3303,16 @@ void __init tcp_init(void)
 	tcp_init_mem(&init_net);
 	/* Set per-socket limits to no more than 1/128 the pressure threshold */
 	limit = nr_free_buffer_pages() << (PAGE_SHIFT - 7);
-	max_share = min(4UL*1024*1024, limit);
+	max_wshare = min(4UL*1024*1024, limit);
+	max_rshare = min(6UL*1024*1024, limit);
 
 	sysctl_tcp_wmem[0] = SK_MEM_QUANTUM;
 	sysctl_tcp_wmem[1] = 16*1024;
-	sysctl_tcp_wmem[2] = max(64*1024, max_share);
+	sysctl_tcp_wmem[2] = max(64*1024, max_wshare);
 
 	sysctl_tcp_rmem[0] = SK_MEM_QUANTUM;
 	sysctl_tcp_rmem[1] = 87380;
-	sysctl_tcp_rmem[2] = max(87380, max_share);
+	sysctl_tcp_rmem[2] = max(87380, max_rshare);
 
 	pr_info("Hash tables configured (established %u bind %u)\n",
 		tcp_hashinfo.ehash_mask + 1, tcp_hashinfo.bhash_size);

trunk/net/ipv4/tcp_input.c

@@ -85,7 +85,7 @@ int sysctl_tcp_ecn __read_mostly = 2;
 EXPORT_SYMBOL(sysctl_tcp_ecn);
 int sysctl_tcp_dsack __read_mostly = 1;
 int sysctl_tcp_app_win __read_mostly = 31;
-int sysctl_tcp_adv_win_scale __read_mostly = 2;
+int sysctl_tcp_adv_win_scale __read_mostly = 1;
 EXPORT_SYMBOL(sysctl_tcp_adv_win_scale);
 
 int sysctl_tcp_stdurg __read_mostly;