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tcp memory pressure controls

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This patch introduces memory pressure controls for the tcp
protocol. It uses the generic socket memory pressure code
introduced in earlier patches, and fills in the
necessary data in cg_proto struct.

Signed-off-by: Glauber Costa <glommer@parallels.com>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujtisu.com>
CC: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Glauber Costa
2011-12-11 21:47:04 +00:00
committed by David S. Miller
parent e1aab161e0
commit d1a4c0b37c
10 changed files with 189 additions and 5 deletions
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5
net/ipv6/tcp_ipv6.c
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@@ -62,6 +62,7 @@
#include <net/netdma.h>
#include <net/inet_common.h>
#include <net/secure_seq.h>
#include <net/tcp_memcontrol.h>
#include <asm/uaccess.h>
@@ -1994,6 +1995,7 @@ static int tcp_v6_init_sock(struct sock *sk)
sk->sk_rcvbuf = sysctl_tcp_rmem[1];
local_bh_disable();
sock_update_memcg(sk);
sk_sockets_allocated_inc(sk);
local_bh_enable();
@@ -2227,6 +2229,9 @@ struct proto tcpv6_prot = {
.compat_setsockopt = compat_tcp_setsockopt,
.compat_getsockopt = compat_tcp_getsockopt,
#endif
#ifdef CONFIG_CGROUP_MEM_RES_CTLR_KMEM
.proto_cgroup = tcp_proto_cgroup,
#endif
};
static const struct inet6_protocol tcpv6_protocol = {