Hello, James. On Thu, Jul 21, 2016 at 08:16:34AM -0700, James Bottomley wrote: > > That'd be one side. The other side is the one moving. Let's say the > > system admin thing wants to move all processe from A proper to B. It > > would do that by draining processes from A's procs file into B's and > > even that is multistep and can race. > > So the second part is that once we allow the creation of > subdirectories, there's no unified tasks file, so there's no way of > draining A proper without enumerating and descending into the cgroupns > created subtrees in A?
Not that. If it races, it will end up moving processes which are no longer in A proper. Such operations or distinctions might not be meaningful under many circumstances but it'd be a pretty big hole in the API to create and I can't really declare these holes are gonna be okay with confidence. Thanks. -- tejun
