Re: [PATCH v2 3/6] perf/core: Don't pass task around when ctx sched in

[Peter Zijlstra]

On Tue, Mar 22, 2022 at 08:08:31PM +0800, Chengming Zhou wrote:
> The current code pass task around for ctx_sched_in(), only
> to get perf_cgroup of the task, then update the timestamp
> of it and its ancestors and set them to active.
> 
> But we can use cpuctx->cgrp to get active perf_cgroup and
> its ancestors since cpuctx->cgrp has been set before
> ctx_sched_in().
> 
> This patch remove the task argument in ctx_sched_in()
> and cleanup related code.
> 
> Signed-off-by: Chengming Zhou <zhouchengming@xxxxxxxxxxxxx>

Yeah, this looks reasonable I suppose...