Hey, On Mon, Dec 16, 2013 at 06:19:37PM +0100, Michal Hocko wrote: > I have to think about it some more (the brain is not working anymore > today). But what we really need is that nobody gets the same id while > the css is alive. So css_from_id returning NULL doesn't seem to be > enough. Oh, I meant whether it's necessary to keep css_from_id() working (ie. doing successful lookups) between offline and release, because that's where lifetimes are coupled. IOW, if it's enough for cgroup to not recycle the ID until all css's are released && fail css_from_id() lookup after the css is offlined, I can make a five liner quick fix. Thanks. -- tejun -- 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>