linux-kernel - Re: No more bits in vm_area_struct's vm

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Message-ID: <4AC12902.2040608@crca.org.au>
Date:	Tue, 29 Sep 2009 07:22:10 +1000
From:	Nigel Cunningham <ncunningham@...a.org.au>
To:	Hugh Dickins <hugh.dickins@...cali.co.uk>
CC:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Wu Fengguang <fengguang.wu@...el.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>
Subject: Re: No more bits in vm_area_struct's vm_flags.

Hi.

Hugh Dickins wrote:
> On Tue, 29 Sep 2009, KAMEZAWA Hiroyuki wrote:
> unsigned long long is certainly the natural choice: that way leaves
> freedom for people to add more flags in future without worrying about
> which flags variable to put them into.  I'd better explain some of my
> objections to Nigel's patch in a reply to him rather than here.

I'd prefer long long too if it's feasible. I'm just not an expert on the
issues, and so went in the direction I was pushed :) It looks a lot
cleaner and simpler to me, too, to keep everything in one variable.

Regards,

Nigel
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