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Subject: Re: mm: convert vma->vm_flags to 64bit
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Date: Wed, 13 Apr 2011 17:00:49 +1000
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To: Alexey Dobriyan <adobriyan@gmail.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>, Andrew Morton <akpm@linux-foundation.org>, LKML <linux-kernel@vger.kernel.org>, linux-mm <linux-mm@kvack.org>, Hugh Dickins <hughd@google.com>, Dave Hansen <dave@linux.vnet.ibm.com>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>, Paul Mundt <lethal@linux-sh.org>, Russell King <linux@arm.linux.org.uk>

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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