diff options
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/tcp.c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 4b0272c92d6..591e96dffc2 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -276,8 +276,8 @@ atomic_t tcp_orphan_count = ATOMIC_INIT(0); EXPORT_SYMBOL_GPL(tcp_orphan_count); int sysctl_tcp_mem[3]; -int sysctl_tcp_wmem[3] = { 4 * 1024, 16 * 1024, 128 * 1024 }; -int sysctl_tcp_rmem[3] = { 4 * 1024, 87380, 87380 * 2 }; +int sysctl_tcp_wmem[3]; +int sysctl_tcp_rmem[3]; EXPORT_SYMBOL(sysctl_tcp_mem); EXPORT_SYMBOL(sysctl_tcp_rmem); @@ -2081,7 +2081,8 @@ __setup("thash_entries=", set_thash_entries); void __init tcp_init(void) { struct sk_buff *skb = NULL; - int order, i; + unsigned long limit; + int order, i, max_share; if (sizeof(struct tcp_skb_cb) > sizeof(skb->cb)) __skb_cb_too_small_for_tcp(sizeof(struct tcp_skb_cb), @@ -2155,12 +2156,16 @@ void __init tcp_init(void) sysctl_tcp_mem[1] = 1024 << order; sysctl_tcp_mem[2] = 1536 << order; - if (order < 3) { - sysctl_tcp_wmem[2] = 64 * 1024; - sysctl_tcp_rmem[0] = PAGE_SIZE; - sysctl_tcp_rmem[1] = 43689; - sysctl_tcp_rmem[2] = 2 * 43689; - } + limit = ((unsigned long)sysctl_tcp_mem[1]) << (PAGE_SHIFT - 7); + max_share = min(4UL*1024*1024, limit); + + sysctl_tcp_wmem[0] = SK_STREAM_MEM_QUANTUM; + sysctl_tcp_wmem[1] = 16*1024; + sysctl_tcp_wmem[2] = max(64*1024, max_share); + + sysctl_tcp_rmem[0] = SK_STREAM_MEM_QUANTUM; + sysctl_tcp_rmem[1] = 87380; + sysctl_tcp_rmem[2] = max(87380, max_share); printk(KERN_INFO "TCP: Hash tables configured " "(established %d bind %d)\n", |