linux-kernel - Re: [PATCH 1/3] cfq-iosched: Fair cross-group preemption (interface and documentation)

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Message-ID: <AANLkTinDEa-whKTk0hP81x=Ag-2cXOheBjRPF=2b=B7r@mail.gmail.com>
Date:	Tue, 22 Mar 2011 11:07:19 -0700
From:	Chad Talbott <ctalbott@...gle.com>
To:	Gui Jianfeng <guijianfeng@...fujitsu.com>
Cc:	jaxboe@...ionio.com, vgoyal@...hat.com,
	linux-kernel@...r.kernel.org, mrubin@...gle.com,
	teravest@...gle.com
Subject: Re: [PATCH 1/3] cfq-iosched: Fair cross-group preemption (interface
 and documentation)

On Tue, Mar 22, 2011 at 3:03 AM, Gui Jianfeng
<guijianfeng@...fujitsu.com> wrote:
> Do we need to implement a globle blkio.class interface as well as
> a device specific one something like "blkio.class_device"? So a user
> doesn't need to check every device number if he want to specify a
> global value.

I think you're right.  It's more symmetrical with the weight
interface, so will be less confusing.  I'll add it.

Chad
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