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

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Date:	Wed, 13 Apr 2011 17:00:49 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Alexey Dobriyan <adobriyan@...il.com>
Cc:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.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.

Cheers,
Ben.


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