linux-kernel - Re: [PATCH 03/26] x86-64, NUMA: Drop @start/last_pfn from initmem

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Message-ID: <4D56CA32.5060304@kernel.org>
Date:	Sat, 12 Feb 2011 09:58:10 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Tejun Heo <tj@...nel.org>
CC:	linux-kernel@...r.kernel.org, x86@...nel.org, brgerst@...il.com,
	gorcunov@...il.com, shaohui.zheng@...el.com, rientjes@...gle.com,
	mingo@...e.hu, hpa@...ux.intel.com
Subject: Re: [PATCH 03/26] x86-64, NUMA: Drop @start/last_pfn from initmem_init()

On 02/12/2011 09:10 AM, Tejun Heo wrote:
> initmem_init() extensively accesses and modifies global data
> structures and the parameters aren't even followed depending on which
> path is being used.  Drop @start/last_pfn and let it deal with
> @max_pfn directly.  This is in preparation for further NUMA init
> cleanups.
> 
> Signed-off-by: Tejun Heo <tj@...nel.org>
> Cc: Yinghai Lu <yinghai@...nel.org>
> Cc: Brian Gerst <brgerst@...il.com>
> Cc: Cyrill Gorcunov <gorcunov@...il.com>
> Cc: Shaohui Zheng <shaohui.zheng@...el.com>
> Cc: David Rientjes <rientjes@...gle.com>
> Cc: Ingo Molnar <mingo@...e.hu>
> Cc: H. Peter Anvin <hpa@...ux.intel.com>
> ---
>  arch/x86/include/asm/page_types.h |    3 +--
>  arch/x86/kernel/setup.c           |    2 +-
>  arch/x86/mm/init_64.c             |    5 ++---
>  arch/x86/mm/numa_64.c             |   21 ++++++++-------------
>  4 files changed, 12 insertions(+), 19 deletions(-)

it will break 32bit.

Yinghai
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