linux-kernel - Re: [PATCH] sched, cpuset: Fix dl_cpu_busy() panic due to empty cs->cpus

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Message-ID: <Yv7M3/L9SarNI56c@blackbook>
Date:   Fri, 19 Aug 2022 01:35:59 +0200
From:   Michal Koutný <mkoutny@...e.com>
To:     Waiman Long <longman@...hat.com>
Cc:     Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        Valentin Schneider <vschneid@...hat.com>,
        Tejun Heo <tj@...nel.org>, Zefan Li <lizefan.x@...edance.com>,
        Johannes Weiner <hannes@...xchg.org>, cgroups@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] sched, cpuset: Fix dl_cpu_busy() panic due to empty
 cs->cpus_allowed

On Tue, Aug 02, 2022 at 09:54:51PM -0400, Waiman Long <longman@...hat.com> wrote:
> Fixes: 7f51412a415d ("sched/deadline: Fix bandwidth check/update when migrating tasks between exclusive cpusets")
> Signed-off-by: Waiman Long <longman@...hat.com>
> ---
>  include/linux/sched.h  | 2 +-
>  kernel/cgroup/cpuset.c | 2 +-
>  kernel/sched/core.c    | 8 +++++---
>  3 files changed, 7 insertions(+), 5 deletions(-)

Good catch,
Reviewed-by: Michal Koutný <mkoutny@...e.com>