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Diffstat (limited to 'net/ipv4/tcp.c')
-rw-r--r--net/ipv4/tcp.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 6e5617b9f9db..8e8529d3c8c9 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -288,9 +288,11 @@ int sysctl_tcp_min_tso_segs __read_mostly = 2;
struct percpu_counter tcp_orphan_count;
EXPORT_SYMBOL_GPL(tcp_orphan_count);
+long sysctl_tcp_mem[3] __read_mostly;
int sysctl_tcp_wmem[3] __read_mostly;
int sysctl_tcp_rmem[3] __read_mostly;
+EXPORT_SYMBOL(sysctl_tcp_mem);
EXPORT_SYMBOL(sysctl_tcp_rmem);
EXPORT_SYMBOL(sysctl_tcp_wmem);
@@ -3097,13 +3099,13 @@ static int __init set_thash_entries(char *str)
}
__setup("thash_entries=", set_thash_entries);
-void tcp_init_mem(struct net *net)
+static void tcp_init_mem(void)
{
unsigned long limit = nr_free_buffer_pages() / 8;
limit = max(limit, 128UL);
- net->ipv4.sysctl_tcp_mem[0] = limit / 4 * 3;
- net->ipv4.sysctl_tcp_mem[1] = limit;
- net->ipv4.sysctl_tcp_mem[2] = net->ipv4.sysctl_tcp_mem[0] * 2;
+ sysctl_tcp_mem[0] = limit / 4 * 3;
+ sysctl_tcp_mem[1] = limit;
+ sysctl_tcp_mem[2] = sysctl_tcp_mem[0] * 2;
}
void __init tcp_init(void)
@@ -3137,10 +3139,9 @@ void __init tcp_init(void)
&tcp_hashinfo.ehash_mask,
0,
thash_entries ? 0 : 512 * 1024);
- for (i = 0; i <= tcp_hashinfo.ehash_mask; i++) {
+ for (i = 0; i <= tcp_hashinfo.ehash_mask; i++)
INIT_HLIST_NULLS_HEAD(&tcp_hashinfo.ehash[i].chain, i);
- INIT_HLIST_NULLS_HEAD(&tcp_hashinfo.ehash[i].twchain, i);
- }
+
if (inet_ehash_locks_alloc(&tcp_hashinfo))
panic("TCP: failed to alloc ehash_locks");
tcp_hashinfo.bhash =
@@ -3166,7 +3167,7 @@ void __init tcp_init(void)
sysctl_tcp_max_orphans = cnt / 2;
sysctl_max_syn_backlog = max(128, cnt / 256);
- tcp_init_mem(&init_net);
+ tcp_init_mem();
/* Set per-socket limits to no more than 1/128 the pressure threshold */
limit = nr_free_buffer_pages() << (PAGE_SHIFT - 7);
max_wshare = min(4UL*1024*1024, limit);