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From: "Yajun Deng" <yajun.deng@linux.dev>
To: "Daniel Bristot de Oliveira" <bristot@redhat.com>
Cc: linux-kernel@vger.kernel.org, mingo@redhat.com,
	peterz@infradead.org, juri.lelli@redhat.com,
	dietmar.eggemann@arm.com, bsegall@google.com,
	vschneid@redhat.com, rostedt@goodmis.org, mgorman@suse.de,
	vincent.guittot@linaro.org
Subject: Re: [PATCH] sched/deadline: Use proc_douintvec_minmax() limit minimum value
Date: Tue, 07 Jun 2022 08:35:56 +0000	[thread overview]
Message-ID: <9150a4ffa0ff94ab4697d615c60ed9b4@linux.dev> (raw)
In-Reply-To: <46b7ca44-a338-e1c1-e005-326e89576211@redhat.com>

June 7, 2022 3:55 PM, "Daniel Bristot de Oliveira" <bristot@redhat.com> wrote:

> Hi Yajun
> 
> On 5/13/22 04:41, Yajun Deng wrote:
> 
>> proc_dointvec() is not applicable for unsigned integer, use
>> proc_douintvec_minmax() limit minimum value.
> 
> I understand your patch, but your log message is somehow incomplete.
> 
> Could you expand on that, showing the problem using an example, and then how you
> see it fixed?
> 

This patch isn't a fix. It's just an optimization for match data and proc_handler in struct ctl_table.

> Also, could you please add the Fixes: tag so this patch can land on stable trees?
> 

This statement 'if (period < min || period > max)' in __checkparam_dl() will work fine even if there hasn't this patch.
So this patch may not need land on stable trees.

> -- Daniel

  reply	other threads:[~2022-06-07  8:36 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-13  2:41 [PATCH] sched/deadline: Use proc_douintvec_minmax() limit minimum value Yajun Deng
2022-06-07  1:26 ` Yajun Deng
2022-06-07  7:55 ` Daniel Bristot de Oliveira
2022-06-07  8:35   ` Yajun Deng [this message]
2022-06-07  8:45     ` Daniel Bristot de Oliveira

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