On Wed, 1 Sep 2010 15:42:59 +0900 KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> wrote: > From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> > > Now, memory cgroup has an ID per cgroup and make use of it at > - hierarchy walk, > - swap recording. > > This patch is for making more use of it. The final purpose is > to replace page_cgroup->mem_cgroup's pointer to an unsigned short. > > This patch caches a pointer of memcg in an array. By this, we > don't have to call css_lookup() which requires radix-hash walk. > This saves some amount of memory footprint at lookup memcg via id. > > Changelog: 20100901 > - added unregster_memcg_id() and did some clean up. > - removed ->valid. > - fixed mem_cgroup_num counter handling. > > Changelog: 20100825 > - applied comments. > > Changelog: 20100811 > - adjusted onto mmotm-2010-08-11 > - fixed RCU related parts. > - use attach_id() callback. > > Changelog: 20100804 > - fixed description in init/Kconfig > > Changelog: 20100730 > - fixed rcu_read_unlock() placement. > > Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> Reviewed-by: Daisuke Nishimura <nishimura@xxxxxxxxxxxxxxxxx> -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>