On 06/23/2016 11:13 PM, Tejun Heo wrote:
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.
Ok, thanks for confirming!
Thanks.
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