Hello, Michal. On Fri, Jun 07, 2013 at 09:37:54AM +0200, Michal Hocko wrote: > > Oh yeah, it is racy. That's what I meant by "not having to be > > completely strict". The race window is small enough and it's not like > > we're messing up refcnt or may end up with use-after-free. > > But it would potentially pin (aka leak) the memcg for ever. It wouldn't be anything systemetic tho - race condition's likliness is low and increases with the frequency of reclaim iteration, which at the same time means that it's likely to remedy itself pretty soon. I'm doubtful it'd matter. If it's still bothering, we sure can do it from RCU callback. 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>