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From: Andrew Morton <akpm@linux-foundation.org>
To: Adrian Bunk <bunk@kernel.org>
Cc: Andrea Righi <righi.andrea@gmail.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: PAGE_ALIGN() compile breakage
Date: Fri, 25 Jul 2008 02:25:47 -0700	[thread overview]
Message-ID: <20080725022547.a05ea755.akpm@linux-foundation.org> (raw)
In-Reply-To: <20080725091455.GD19310@cs181140183.pp.htv.fi>

On Fri, 25 Jul 2008 12:14:55 +0300 Adrian Bunk <bunk@kernel.org> wrote:

> Ideally, all headers should be self-contained. IOW, they should #include 
> everything they use.

Yup.  And the core reason for our headers mess is that the headers do
too much stuff, and cnosequently demand a large dependency trail.

> But TASK_UNMAPPED_BASE in asm/processor.h on some architectures uses 
> PAGE_ALIGN() that got moved from asm/page.h to linux/mm.h .

Probably mm.h should be split up - put the simple things (usually
declarations) into one "early" header file and leave the more
heavyweight things (usually implementations) in mm.h.

  reply	other threads:[~2008-07-25  9:26 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-25  8:39 PAGE_ALIGN() compile breakage Adrian Bunk
2008-07-25  8:55 ` Andrew Morton
2008-07-25  9:14   ` Adrian Bunk
2008-07-25  9:25     ` Andrew Morton [this message]
2008-07-25 18:34       ` Andrea Righi
2008-07-25  9:27     ` Adrian Bunk
2008-07-25  9:34       ` Andrew Morton
2008-07-25 12:24         ` __weak vs ifdef Matthew Wilcox
2008-07-25 12:41           ` Andrew Morton
2008-07-26 19:38           ` Linus Torvalds
2010-02-18  2:07             ` Grant Likely
2010-02-18  2:22               ` Linus Torvalds
2008-07-26 21:22         ` [-mm patch] mm/util.c must #include <linux/sched.h> Adrian Bunk

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