linux-kernel - Re: [PATCH] arch: uapi: asm: mman.h: Let MADV_FREE have same value for all architectures

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Message-ID: <5487A5AC.8050503@gmail.com>
Date:	Wed, 10 Dec 2014 09:45:16 +0800
From:	Chen Gang <gang.chen.5i5j@...il.com>
To:	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>
CC:	Minchan Kim <minchan@...nel.org>,
	"rth@...ddle.net" <rth@...ddle.net>,
	"ink@...assic.park.msu.ru" <ink@...assic.park.msu.ru>,
	"mattst88@...il.com" <mattst88@...il.com>,
	Ralf Baechle <ralf@...ux-mips.org>,
	"jejb@...isc-linux.org" <jejb@...isc-linux.org>,
	"deller@....de" <deller@....de>,
	"chris@...kel.net" <chris@...kel.net>,
	"jcmvbkbc@...il.com" <jcmvbkbc@...il.com>,
	Arnd Bergmann <arnd@...db.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-arch@...r.kernel.org, linux-api@...r.kernel.org,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Carlos O'Donell <carlos@...temhalted.org>,
	"Darrick J. Wong" <darrick.wong@...cle.com>, dietlibc@...e.de,
	Felix von Leitner <felix@...e.de>
Subject: Re: [PATCH] arch: uapi: asm: mman.h: Let MADV_FREE have same value
 for all architectures

Hello Andrew:

Could you help check this patch, when you have time. And apply it if
possible.

I guess, this patch is a little urgent, since it changes uapi, if wait
a little longer, more user mode programs (e.g. libc) may use MADV_FREE
as various values.

Thanks.

On 12/6/14 06:00, Chen Gang wrote:
> On 12/05/2014 02:54 PM, Minchan Kim wrote:
>> On Fri, Dec 05, 2014 at 06:58:29AM +0800, Chen Gang wrote:
>>> For uapi, need try to let all macros have same value, and MADV_FREE is
>>> added into main branch recently, so need redefine MADV_FREE for it.
>>>
>>> At present, '8' can be shared with all architectures, so redefine it to
>>> '8'.
>>>
>>> Signed-off-by: Chen Gang <gang.chen.5i5j@...il.com>
>>
>>
>> Hello Chen,
>>
>> Thanks for looking at this.
>> Feel free to add my sign.
>>
>> Acked-by: Minchan Kim <minchan@...nel.org>
>>
> 
> OK, thanks.
> 
> Originally I sent the same patch like you sent (but later than yours).
> Geert suggested to use same value for MADV_FREE, and Carlos confirmed
> it and suggested more things (sorry, I forgot to Cc them in this mail).
> 

-- 
Chen Gang

Open, share, and attitude like air, water, and life which God blessed
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