On Fri, Apr 27, 2012 at 01:15:16PM -0700, Tejun Heo wrote: [..] > > IOW, looks like we need a mechanism to mark a blkcg dead (set in > > pre_destroy() call) and any submissions to blkcg after that should result > > in bio being divered to root group? > > Don't we already have that with css_tryget()? Ok, forgot about css_tryget(). Yes that should work. Thanks. Introduction of cgroup has made locking and lifetime rules little complicated. :-) Thanks Vivek -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html