Re: [PATCH] remove duplicate asm/mman.h files
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- To: Hugh Dickins <hugh.dickins@xxxxxxxxxxxxx>
- Subject: Re: [PATCH] remove duplicate asm/mman.h files
- From: David Rientjes <rientjes@xxxxxxxxxx>
- Date: Mon, 21 Sep 2009 15:55:01 -0700 (PDT)
- Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Fenghua Yu <fenghua.yu@xxxxxxxxx>, Tony Luck <tony.luck@xxxxxxxxx>, ebmunson@xxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-man@xxxxxxxxxxxxxxx, mtk.manpages@xxxxxxxxx, Randy Dunlap <randy.dunlap@xxxxxxxxxx>, rth@xxxxxxxxxxx, ink@xxxxxxxxxxxxxxxxxxxx, linux-ia64@xxxxxxxxxxxxxxx, Arnd Bergmann <arnd@xxxxxxxx>
- In-reply-to: <Pine.LNX.4.64.0909211258570.7831@xxxxxxxxxxxxx>
- List-id: <linux-ia64.vger.kernel.org>
- References: <cover.1251197514.git.ebmunson@xxxxxxxxxx> <200909181848.42192.arnd@xxxxxxxx> <alpine.DEB.1.00.0909181236190.27556@xxxxxxxxxxxxxxxxxxxxxxxxx> <200909211031.25369.arnd@xxxxxxxx> <alpine.DEB.1.00.0909210208180.16086@xxxxxxxxxxxxxxxxxxxxxxxxx> <Pine.LNX.4.64.0909211258570.7831@xxxxxxxxxxxxx>
- User-agent: Alpine 1.00 (DEB 882 2007-12-20)
On Mon, 21 Sep 2009, Hugh Dickins wrote:
> Is it perhaps the case that some UNIX on ia64 does implement MAP_GROWSUP,
> and these numbers in the Linux ia64 mman.h have been chosen to match that
> reference implementation? Tony will know. But I wonder if you'd do
> better at least to leave a MAP_GROWSUP comment on that line, so that
> somebody doesn't go and reuse the empty slot later on.
>
Reserving the bit from future use by adding a comment may be helpful, but
then let's do it for MAP_GROWSDOWN too.
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