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

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Message-ID: <1302646024.28876.52.camel@pasglop>
Date:	Wed, 13 Apr 2011 08:07:04 +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 Tue, 2011-04-12 at 14:06 +0300, Alexey Dobriyan wrote:
> On Tue, Apr 12, 2011 at 10:12 AM, KOSAKI Motohiro
> <kosaki.motohiro@...fujitsu.com> wrote:
> > After next year? All developers don't have to ignore compiler warnings!
> 
> At least add vm_flags_t which is sparse-checked, just like we do with gfp_t.
> 
> VM_SAO is ppc64 only, so it could be moved into high part,
> freeing 1 bit?

My original series did use a type, I don't know what that was dropped,
it made conversion easier imho.

Cheers,
Ben.


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