linux-kernel - Re: [PATCH] cfq-iosched: no need to keep track of busy_rt

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Message-ID: <af41c7c40907131429m3611eb39ya48f7513f7901dcc@mail.gmail.com>
Date:	Mon, 13 Jul 2009 14:29:30 -0700
From:	Divyesh Shah <dpshah@...gle.com>
To:	Jens Axboe <jens.axboe@...cle.com>
Cc:	Vivek Goyal <vgoyal@...hat.com>,
	linux kernel mailing list <linux-kernel@...r.kernel.org>,
	Moyer Jeff Moyer <jmoyer@...hat.com>
Subject: Re: [PATCH] cfq-iosched: no need to keep track of busy_rt_queues

Change looks good to me too.

On Fri, Jul 10, 2009 at 1:18 AM, Jens Axboe<jens.axboe@...cle.com> wrote:
> On Thu, Jul 09 2009, Vivek Goyal wrote:
>> Resending as had forgotten to put "[PATCH]" in subject line.
>>
>> o Get rid of busy_rt_queues infrastructure. Looks like it is redundant.
>>
>> o Once an RT queue gets request it will preempt any of the BE or IDLE queues
>>   immediately. Otherwise this queue will be put on service tree and scheduler
>>   will anyway select this queue before any of the BE or IDLE queue. Hence
>>   looks like there is no need to keep track of how many busy RT queues are
>>   currently on service tree.
>
> Looks good, I'll queue this up for 2.6.32.
>
> --
> Jens Axboe
>
>
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