提交 52bf376c 编写于 作者: J John Heffner 提交者: David S. Miller

[TCP]: Fix up sysctl_tcp_mem initialization.

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: NJohn Heffner <jheffner@psc.edu>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 337dde79
......@@ -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);
......
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