Re: [PATCH 2/9] perf/core: Add PERF_SAMPLE_CGROUP feature

From: Tejun Heo
Date: Fri Dec 20 2019 - 11:59:14 EST


On Fri, Dec 20, 2019 at 05:48:02PM +0100, Peter Zijlstra wrote:
> That assumes the cgroup is still in existence, which might not be the
> case I presume.

Yeah, if the cgroup is already gone by the time the first event is
looked up, this wouldn't work.

--
tejun