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authorGlauber Costa <glommer@parallels.com>2011-12-11 21:47:02 +0000
committerDavid S. Miller <davem@davemloft.net>2011-12-12 19:04:10 -0500
commit180d8cd942ce336b2c869d324855c40c5db478ad (patch)
tree2424d854345d81464d6030ef8090a8e22bd414b0 /net/ipv4/tcp_ipv4.c
parente5671dfae59b165e2adfd4dfbdeab11ac8db5bda (diff)
downloadblackbird-obmc-linux-180d8cd942ce336b2c869d324855c40c5db478ad.tar.gz
blackbird-obmc-linux-180d8cd942ce336b2c869d324855c40c5db478ad.zip
foundations of per-cgroup memory pressure controlling.
This patch replaces all uses of struct sock fields' memory_pressure, memory_allocated, sockets_allocated, and sysctl_mem to acessor macros. Those macros can either receive a socket argument, or a mem_cgroup argument, depending on the context they live in. Since we're only doing a macro wrapping here, no performance impact at all is expected in the case where we don't have cgroups disabled. Signed-off-by: Glauber Costa <glommer@parallels.com> Reviewed-by: Hiroyouki Kamezawa <kamezawa.hiroyu@jp.fujitsu.com> CC: David S. Miller <davem@davemloft.net> CC: Eric W. Biederman <ebiederm@xmission.com> CC: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
-rw-r--r--net/ipv4/tcp_ipv4.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index c4b8b09db9f5..f48bf312cfe8 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1917,7 +1917,7 @@ static int tcp_v4_init_sock(struct sock *sk)
sk->sk_rcvbuf = sysctl_tcp_rmem[1];
local_bh_disable();
- percpu_counter_inc(&tcp_sockets_allocated);
+ sk_sockets_allocated_inc(sk);
local_bh_enable();
return 0;
@@ -1973,7 +1973,7 @@ void tcp_v4_destroy_sock(struct sock *sk)
tp->cookie_values = NULL;
}
- percpu_counter_dec(&tcp_sockets_allocated);
+ sk_sockets_allocated_dec(sk);
}
EXPORT_SYMBOL(tcp_v4_destroy_sock);
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