linux-kernel - Re: mm: convert vma->vm

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Message-Id: <20110413173453.D734.A69D9226@jp.fujitsu.com>
Date:	Wed, 13 Apr 2011 17:34:35 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	kosaki.motohiro@...fujitsu.com,
	Alexey Dobriyan <adobriyan@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>, Hugh Dickins <hughd@...gle.com>,
	Dave Hansen <dave@...ux.vnet.ibm.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Paul Mundt <lethal@...ux-sh.org>,
	Russell King <linux@....linux.org.uk>
Subject: Re: mm: convert vma->vm_flags to 64bit

> On Wed, 2011-04-13 at 09:44 +0300, Alexey Dobriyan wrote:
> > > Yes, I take Hugh's version because vm_flags_t is ugly to me. And
> > arch 
> > > dependent variable size is problematic.
> > 
> > Who said it should have arch-dependent size? 
> 
> Right, it shouldn't. My original patch did that to avoid thinking about
> archs that manipulated it from asm such as ARM but that wasn't the right
> thing to do. But that doesn't invalidate having a type.

type or not type is really cosmetic matter. Then, only if Andrew or Hugh
or another active MM developers strongly requrest to make a type, I'll do.
But, now I haven't hear it.

In short, When both are right code, I prefer to take MM developers preference.
That's MM code. This is the reason why I taked Hugh's choice.

Thanks.


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