Hello, On Thu, Jun 23, 2016 at 11:42:31AM +0200, Daniel Borkmann wrote: > I presume it's a valid use case to pin a cgroup map, put fds into it and > remove the pinned file expecting to continue to match on it, right? So > lifetime is really until last prog using a cgroup map somewhere gets removed > (even if not accessible from user space anymore, meaning no prog has fd and > pinned file was removed).
Yeap, from what I can see, the cgroup will stay around (even if it gets deleted) as long as the bpf rule using it is around and that's completely fine from cgroup side. Thanks. -- tejun