linux-kernel - Re: [PATCH] Break out types from <linux/list.h> to <linux/list

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Message-ID: <20100702191910.GA5842@parisc-linux.org>
Date:	Fri, 2 Jul 2010 13:19:11 -0600
From:	Matthew Wilcox <matthew@....cx>
To:	Chris Metcalf <cmetcalf@...era.com>
Cc:	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH] Break out types from <linux/list.h> to
	<linux/list_types.h>.

On Fri, Jul 02, 2010 at 01:41:14PM -0400, Chris Metcalf wrote:
> This allows a list_head (or hlist_head, etc.) to be used from places
> that used to be impractical, in particular <asm/processor.h>, which
> used to cause include file recursion: <linux/list.h> includes
> <linux/prefetch.h>, which always includes <asm/processor.h> for the
> prefetch macros, as well as <asm/system.h>, which often includes
> <asm/processor.h> directly or indirectly.

Why a new header file instead of linux/types.h?

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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