On 04/03/2013 01:11 PM, Li Zefan wrote: > The historical reason that memcg didn't use css_get in some cases, is that > cgroup couldn't be removed if there're still css refs. The situation has > changed so that rmdir a cgroup will succeed regardless css refs, but won't > be freed until css refs goes down to 0. > > This is an early post, and it's NOT TESTED. I just want to see if the changes > are fine in general. Well, from my PoV, this will in general greatly simplify memcg lifecycle management. Indeed, I can remember no other reason for those complications other than the problem with removing directories. If cgroup no longer have this limitation, I would much rather see your approach in. I will look into the patches individually soon -- 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>