tcp memory pressure controls

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>

1 files changed, 2 insertions, 0 deletions

diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt
index 23a8dc5319a3..687dea5bf1fd 100644
--- a/Documentation/cgroups/memory.txt
+++ b/Documentation/cgroups/memory.txt
@@ -293,6 +293,8 @@ to trigger slab reclaim when those limits are reached.
 thresholds. The Memory Controller allows them to be controlled individually
 per cgroup, instead of globally.
 
+* tcp memory pressure: sockets memory pressure for the tcp protocol.
+
 3. User Interface
 
 0. Configuration