foundations of per-cgroup memory pressure controlling.
authorGlauber Costa <glommer@parallels.com>
Sun, 11 Dec 2011 21:47:02 +0000 (21:47 +0000)
committerDavid S. Miller <davem@davemloft.net>
Tue, 13 Dec 2011 00:04:10 +0000 (19:04 -0500)
commit180d8cd942ce336b2c869d324855c40c5db478ad
tree2424d854345d81464d6030ef8090a8e22bd414b0
parente5671dfae59b165e2adfd4dfbdeab11ac8db5bda
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>
include/net/sock.h
include/net/tcp.h
net/core/sock.c
net/ipv4/proc.c
net/ipv4/tcp_input.c
net/ipv4/tcp_ipv4.c
net/ipv4/tcp_output.c
net/ipv4/tcp_timer.c
net/ipv6/tcp_ipv6.c