linux-kernel - Re: [PATCH] cgroup: minor cleanup for cgroup_local_stat

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Message-Id: <20230803100533.a9bdac370de2e8e4bee0f33a@linux-foundation.org>
Date:   Thu, 3 Aug 2023 10:05:33 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Johannes Weiner <hannes@...xchg.org>
Cc:     Miaohe Lin <linmiaohe@...wei.com>, tj@...nel.org,
        lizefan.x@...edance.com, cgroups@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] cgroup: minor cleanup for cgroup_local_stat_show()

On Thu, 3 Aug 2023 10:27:58 -0400 Johannes Weiner <hannes@...xchg.org> wrote:

> > @@ -3686,8 +3686,9 @@ static int cpu_stat_show(struct seq_file *seq, void *v)
> >  	return ret;
> >  }
> >  
> > -static int __maybe_unused cgroup_local_stat_show(struct seq_file *seq,
> > -						 struct cgroup *cgrp, int ssid)
> > +#ifdef CONFIG_CGROUP_SCHED
> > +static int cgroup_local_stat_show(struct seq_file *seq,
> > +				  struct cgroup *cgrp, int ssid)
> 
> Andrew, this is based on "sched: add throttled time stat for throttled
> children" in -next (coming in from -tip). Hence the routing through
> you rather than the cgroup tree.

Since switching to the more gitty workflow I have lost the power to
carry patches against -next.  I could regain that power I guess, but
this is the first time the requirement has come up.

So for now I'll save this patch away for the next -rc cycle.