linux-kernel - Re: [PATCH] sched/rt: Fix double enqueue caused by rt_effective

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Message-ID: <YOgJzqOrVHUvCpch@localhost.localdomain>
Date:   Fri, 9 Jul 2021 10:33:18 +0200
From:   Juri Lelli <juri.lelli@...hat.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     mingo@...hat.com, linux-kernel@...r.kernel.org,
        vincent.guittot@...aro.org, rostedt@...dmis.org,
        dietmar.eggemann@....com, bristot@...hat.com, bsegall@...gle.com,
        mgorman@...e.de, Mark Simmons <msimmons@...hat.com>
Subject: Re: [PATCH] sched/rt: Fix double enqueue caused by rt_effective_prio

Hi Peter,

On 08/07/21 12:26, Peter Zijlstra wrote:
> On Thu, Jul 08, 2021 at 12:06:27PM +0200, Peter Zijlstra wrote:
> > Slightly larger patch, but perhaps a little cleaner.. still pondering if
> > we can share a little more between __sched_setscheduler() and
> > rt_mutex_setprio().
> 
> Best I can seem to come up with...

Thanks for the non-lazy version of the fix!

Makes sense to me and it looks good from quick testing. I'll be doing
more extensive testing and ask Mark (cc-ed) to help with that. :)

We'll report back soon-ish.

Best,
Juri