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author | David S. Miller <davem@davemloft.net> | 2011-07-14 07:56:40 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2011-07-14 07:56:40 -0700 |
commit | 6a7ebdf2fd15417e87b4fd02ff411aeaca34da5f (patch) | |
tree | 86b15d8cd3e25c97b348b5a61bdb16c02726a480 /net/ipv4 | |
parent | f6b72b6217f8c24f2a54988e58af858b4e66024d (diff) | |
parent | 51414d41084496aaefd06d7f19eb8206e8bfac2d (diff) | |
download | linux-6a7ebdf2fd15417e87b4fd02ff411aeaca34da5f.tar.bz2 |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
net/bluetooth/l2cap_core.c
Diffstat (limited to 'net/ipv4')
-rw-r--r-- | net/ipv4/tcp.c | 10 | ||||
-rw-r--r-- | net/ipv4/udp.c | 10 |
2 files changed, 4 insertions, 16 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 054a59d21eb0..46febcacb729 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -3220,7 +3220,7 @@ __setup("thash_entries=", set_thash_entries); void __init tcp_init(void) { struct sk_buff *skb = NULL; - unsigned long nr_pages, limit; + unsigned long limit; int i, max_share, cnt; unsigned long jiffy = jiffies; @@ -3277,13 +3277,7 @@ void __init tcp_init(void) sysctl_tcp_max_orphans = cnt / 2; sysctl_max_syn_backlog = max(128, cnt / 256); - /* Set the pressure threshold to be a fraction of global memory that - * is up to 1/2 at 256 MB, decreasing toward zero with the amount of - * memory, with a floor of 128 pages. - */ - nr_pages = totalram_pages - totalhigh_pages; - limit = min(nr_pages, 1UL<<(28-PAGE_SHIFT)) >> (20-PAGE_SHIFT); - limit = (limit * (nr_pages >> (20-PAGE_SHIFT))) >> (PAGE_SHIFT-11); + limit = nr_free_buffer_pages() / 8; limit = max(limit, 128UL); sysctl_tcp_mem[0] = limit / 4 * 3; sysctl_tcp_mem[1] = limit; diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 95e0d3b8977f..1b5a19340a95 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -2211,16 +2211,10 @@ void __init udp_table_init(struct udp_table *table, const char *name) void __init udp_init(void) { - unsigned long nr_pages, limit; + unsigned long limit; udp_table_init(&udp_table, "UDP"); - /* Set the pressure threshold up by the same strategy of TCP. It is a - * fraction of global memory that is up to 1/2 at 256 MB, decreasing - * toward zero with the amount of memory, with a floor of 128 pages. - */ - nr_pages = totalram_pages - totalhigh_pages; - limit = min(nr_pages, 1UL<<(28-PAGE_SHIFT)) >> (20-PAGE_SHIFT); - limit = (limit * (nr_pages >> (20-PAGE_SHIFT))) >> (PAGE_SHIFT-11); + limit = nr_free_buffer_pages() / 8; limit = max(limit, 128UL); sysctl_udp_mem[0] = limit / 4 * 3; sysctl_udp_mem[1] = limit; |