Hey, Li. On Fri, Mar 30, 2012 at 08:42:07PM +0800, Li Zefan wrote: > > This patch replaces cgroup file interface with cftype based one which > > allows dynamic additions and removals of cftype arrays whether the > > target subsystem is attached or not. This can be used to make subsys > > rebinding via remount work properly but I intentionally avoided doing > > that at the moment. > > What's the problem with remount? Subsys can't be changed if any non-root cgroup exists. > and is it important enough that it should be fixed even the feature > is marked as deprecated? I'm not sure. We *might* need it during multi-mount -> single-mount transition depending on how that's implemented, so the "at the moment" qualifier. It probably won't be fixed but I'm not fully sure. > > This makes cgroup population simpler for controllers and will be used > > to allow controllers to be more dynamic. e.g. blkio subsys has > > sub-policies which may come and go while blkio subsys is attached and > > it currently uses fixed set of files which stays blank if not in use. > > Dynamic cgroup files was mentioned before. The scenario in mind was blkio > control files can be added/removed automatically as devices come and ago. > > So this time blkio subsystem is really going to be made more dynamic > soon? Patchset already posted. http://thread.gmane.org/gmane.linux.kernel.cgroups/1376 Thanks. -- tejun _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/containers
