linux-kernel - Re: [PATCH] proc: move the adding option Ngid to the end of proc/PID/status

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Message-ID: <CAOS58YNX7uoutwGYZ-CRxX+6o4_AeHSNcCokWhmZ6XG1GVg_3g@mail.gmail.com>
Date:	Thu, 16 Apr 2015 23:26:08 -0400
From:	Tejun Heo <tj@...nel.org>
To:	"Wang, Xiaoming" <xiaoming.wang@...el.com>
Cc:	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"oleg@...hat.com" <oleg@...hat.com>,
	"andriy.shevchenko@...ux.intel.com" 
	<andriy.shevchenko@...ux.intel.com>,
	"linux@...musvillemoes.dk" <linux@...musvillemoes.dk>,
	"ebiederm@...ssion.com" <ebiederm@...ssion.com>,
	"eparis@...hat.com" <eparis@...hat.com>,
	"chenhanxiao@...fujitsu.com" <chenhanxiao@...fujitsu.com>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Schallberger, Timothy M" <timothy.m.schallberger@...el.com>,
	"Zhang, Dongxing" <dongxing.zhang@...el.com>
Subject: Re: [PATCH] proc: move the adding option Ngid to the end of proc/PID/status

Hello,

On Thu, Apr 16, 2015 at 11:15 PM, Wang, Xiaoming
<xiaoming.wang@...el.com> wrote:
> I am not sure exactly which kernel introduced this Ngid.
> I check the git and found it added in
> commit e29cf08b05dc0b8151d65704d96d525a9e179a6b

git describe --contains says 3.13 and it's about 1.5 years ago.

> And this change has destroyed the order already.
> Moving the adding option Ngid to the end of proc/PID/status
> is to keep order .

There isn't any assurance that changing the order won't break a
different set of programs which make different ordering assumptions.
The new order is already out there. This isn't a legal dispute where
the original owner is "right".

-- 
tejun
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