Re: [PATCH v2 1/2] perf/core: Fix nr_cgroups/cpuctx->cgrp is not updated correctly

[Luo Gengkun]

On 2025/6/4 17:19, Peter Zijlstra wrote:
> On Wed, Jun 04, 2025 at 03:39:23AM +0000, Luo Gengkun wrote:
> > Since __perf_remove_from_context updates event->state before
> > list_del_event, this prevents list_del_event from calling
> > perf_cgroup_event_disable, resulting in will not update nr_cgroups and
> > cpuctx->cgrp.
> >
> > To fix this problem, move perf_cgroup_event_disable into
> > __perf_remove_from_context as:
> >
> > commit a3c3c66670ce ("perf/core: Fix child_total_time_enabled accounting bug at task exit")
> >
> > did.
> >
> > Fixes: a3c3c66670ce ("perf/core: Fix child_total_time_enabled accounting bug at task exit")
> > Signed-off-by: Luo Gengkun <luogengkun@xxxxxxxxxxxxxxx>
> So I already have Yeoreum's patch for this:
>
>    https://lkml.kernel.org/r/20250603144414.GC38114@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> Oh! okay. But the second patch can still be reviewd. Thanks.