(2013/04/08 15:34), Li Zefan wrote: > Use css_get()/css_put() instead of mem_cgroup_get()/mem_cgroup_put(). > > There are two things being done in the current code: > > First, we acquired a css_ref to make sure that the underlying cgroup > would not go away. That is a short lived reference, and it is put as > soon as the cache is created. > > At this point, we acquire a long-lived per-cache memcg reference count > to guarantee that the memcg will still be alive. > > so it is: > > enqueue: css_get > create : memcg_get, css_put > destroy: memcg_put > > So we only need to get rid of the memcg_get, change the memcg_put to > css_put, and get rid of the now extra css_put. > > (This changelog is basically written by Glauber) > > Signed-off-by: Li Zefan <lizefan@xxxxxxxxxx> > Acked-by: Michal Hocko <mhocko@xxxxxxx> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>