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Message-ID: <20250630145022.GA2440438@joelnvbox>
Date: Mon, 30 Jun 2025 10:50:22 -0400
From: Joel Fernandes <joelagnelf@...dia.com>
To: Tejun Heo <tj@...nel.org>
Cc: linux-kernel@...r.kernel.org, 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>,
Valentin Schneider <vschneid@...hat.com>,
David Vernet <void@...ifault.com>, Andrea Righi <arighi@...dia.com>,
Changwoo Min <changwoo@...lia.com>
Subject: Re: [PATCH v5 05/14] sched/deadline: Return EBUSY if dl_bw_cpus is
zero
On Mon, Jun 23, 2025 at 10:20:01AM -1000, Tejun Heo wrote:
> On Fri, Jun 20, 2025 at 04:32:20PM -0400, Joel Fernandes wrote:
> > - if (__dl_overflow(dl_b, cap, old_bw, new_bw))
> > + // Hotplugged CPUs coming online do an enqueue but are not a part of any
> > + // root domain containing cpu_active() CPUs. So in this case, don't mess
> > + // with accounting and we can retry later.
> > + if (!cpus || __dl_overflow(dl_b, cap, old_bw, new_bw))
> > return -EBUSY;
>
> Maybe match the comment style in the file?
>
> Thanks.
>
> --
> tejun
Agreed, will fix. Thanks!
- Joel
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