diff options
| -rw-r--r-- | Documentation/networking/ip-sysctl.txt | 4 | ||||
| -rw-r--r-- | net/ipv4/tcp.c | 9 | ||||
| -rw-r--r-- | net/ipv4/tcp_input.c | 2 |
3 files changed, 8 insertions, 7 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index bd80ba5847d..1619a8c8087 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/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). diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 8bb6adeb62c..1272a88c2a6 100644 --- a/net/ipv4/tcp.c +++ b/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); diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index d99efd7dfb6..257b61789ee 100644 --- a/net/ipv4/tcp_input.c +++ b/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; |