linux-kernel - Re: [PATCH 0/3] cfq-iosched: Fair cross-group preemption

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Message-ID: <AANLkTikptjDTP0Xd5B8tBy5UwqNYttJXCa36QpJUj1bt@mail.gmail.com>
Date:	Mon, 28 Mar 2011 10:02:53 -0700
From:	Chad Talbott <ctalbott@...gle.com>
To:	Vivek Goyal <vgoyal@...hat.com>
Cc:	Gui Jianfeng <guijianfeng@...fujitsu.com>, jaxboe@...ionio.com,
	linux-kernel@...r.kernel.org, mrubin@...gle.com,
	teravest@...gle.com
Subject: Re: [PATCH 0/3] cfq-iosched: Fair cross-group preemption

On Mon, Mar 28, 2011 at 6:17 AM, Vivek Goyal <vgoyal@...hat.com> wrote:
> On Fri, Mar 25, 2011 at 04:53:13PM -0700, Chad Talbott wrote:
>> I prefer option a) - so much so that even with the older CFQ group
>> implementation we did work to merge the RT and BE service trees to
>> achieve that behavior.  But I see that using blkio.class is a poor
>> choice of interface name.  I will rename the interface and resubmit
>> the patch series (also with Gui's suggestion to keep the "_device"
>> suffix for consistency).
>
> Do you need this feature to be global or per device or both?

Per-device.

Chad
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