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[TCP]: Fix up sysctl_tcp_mem initialization.

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Fix up tcp_mem initial settings to take into account the size of the
hash entries (different on SMP and non-SMP systems).

Signed-off-by: John Heffner <jheffner@psc.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
John Heffner 2006-11-14 20:25:17 -08:00 committed by David S. Miller
parent 337dde798d
commit 52bf376c63
1 changed files with 4 additions and 3 deletions
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7
net/ipv4/tcp.c
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@ -2316,9 +2316,10 @@ void __init tcp_init(void)
sysctl_max_syn_backlog = 128;
}
sysctl_tcp_mem[0] = 768 << order;
sysctl_tcp_mem[1] = 1024 << order;
sysctl_tcp_mem[2] = 1536 << order;
/* Allow no more than 3/4 kernel memory (usually less) allocated to TCP */
sysctl_tcp_mem[0] = (1536 / sizeof (struct inet_bind_hashbucket)) << order;
sysctl_tcp_mem[1] = sysctl_tcp_mem[0] * 4 / 3;
sysctl_tcp_mem[2] = sysctl_tcp_mem[0] * 2;
limit = ((unsigned long)sysctl_tcp_mem[1]) << (PAGE_SHIFT - 7);
max_share = min(4UL*1024*1024, limit);