linux-kernel - Re: [PATCH 1/2 V3] io-controller: Add a new interface "weight

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Message-ID: <1786ab031003092141j48599b09vc80741f35a34d71c@mail.gmail.com>
Date:	Tue, 9 Mar 2010 21:41:23 -0800
From:	Chad Talbott <ctalbott@...gle.com>
To:	Gui Jianfeng <guijianfeng@...fujitsu.com>
Cc:	Vivek Goyal <vgoyal@...hat.com>,
	Nauman Rafique <nauman@...gle.com>, jens.axboe@...cle.com,
	linux-kernel@...r.kernel.org, Li Zefan <lizf@...fujitsu.com>
Subject: Re: [PATCH 1/2 V3] io-controller: Add a new interface "weight_device" 
	for IO-Controller

On Tue, Mar 9, 2010 at 4:33 PM, Gui Jianfeng <guijianfeng@...fujitsu.com> wrote:
> Vivek Goyal wrote:
>> On Tue, Mar 09, 2010 at 09:52:06AM +0800, Gui Jianfeng wrote:
>> I am not very sure but device name/path interface might turn out to be
>> more intutive.
>
> I don't think using an inode path name as interface is a good idea. Because, one
> can create new file to point to the same device. Also, pathname could be removed
> or renamed by user.
> So, i think device number is a better choice.

Sorry to butt in, but I don't think anyone is suggesting trying to
remember names from device nodes.  I think the idea is to use the
names derived from the subsystem - such as 'sda' which is reflected in
/sys and dmesg.

Chad
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