linux-kernel - Re: [PATCH] remove PAGE_SIZE from headers

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Date:	Sat, 14 Jul 2007 17:04:36 -0400
From:	"Mike Frysinger" <vapier.adi@...il.com>
To:	"Olaf Hering" <olaf@...fle.de>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] remove PAGE_SIZE from headers_install

On 7/14/07, Olaf Hering <olaf@...fle.de> wrote:
> Declare PAGE_SIZE as getpagesize() for userspace.
> PAGE_SIZE is used in resource.h and shm.h
>
> define PAGE_SIZE in asm-generic/page.h
> guard get_order() with _ARCH_HAS_GET_ORDER for ia64 and xtensa
> include asm-generic/page.h in asm/page.h
> make asm/page.h nearly empty by moving the #ifdef guards up
> remove unneeded page.h export from frv

imo, asm/page.h should just go away for userspace.  the attached patch
is what i've been using in Gentoo ... but somethings (like an arch or
two in glibc) still assume asm/page.h is OK.  in general though,
considering asm/page.h has become so unreliable lately (a large number
of arches ifdef the whole thing out), most packages out there have
updated already to use the userspace interface from unistd.h.
-mike

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