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From: Johannes Weiner <hannes@saeurebad.de>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: "Yinghai Lu" <yhlu.kernel@gmail.com>,
       "Andrew Morton" <akpm@linux-foundation.org>,
       "Ingo Molnar" <mingo@elte.hu>, "Andi Kleen" <ak@suse.de>,
       "Christoph Lameter" <clameter@sgi.com>, linux-kernel@vger.kernel.org,
       "Yasunori Goto" <y-goto@jp.fujitsu.com>
Subject: Re: [PATCH] mm: make reserve_bootmem can crossed the nodes
References: <86802c440803131645q1eb31cb7jb0774d9cf67c767@mail.gmail.com>
	<20080314103431.ff07070c.kamezawa.hiroyu@jp.fujitsu.com>
	<86802c440803131835u4e506d69l4f116eb49d9ee9b2@mail.gmail.com>
	<20080314105529.79921546.kamezawa.hiroyu@jp.fujitsu.com>
	<86802c440803131900j30ef490bk1923fdd219433535@mail.gmail.com>
	<20080314113646.d73066f7.kamezawa.hiroyu@jp.fujitsu.com>
Date: Fri, 14 Mar 2008 03:58:11 +0100
In-Reply-To: <20080314113646.d73066f7.kamezawa.hiroyu@jp.fujitsu.com>
	(KAMEZAWA Hiroyuki's message of "Fri, 14 Mar 2008 11:36:46 +0900")
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Hi,

KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> writes:

> Background:
> - reserve_bootmem is called for *reserve* memory before bootmem allocator.
> - It specifies <address, size>.
> - Because <addrees, size> are argments, memory hole in <address, size> is not
>   problem here.
>
> Before change,
> - reseve_bootmem() only works for Node(0)
>
> After change
> - reserve_bootmem() works on sutiable nodes for <address, size>
> - It can spread accross among prural nodes.

After the change it will iterate over all nodes, reserving the range
`address to address+size' on each of them.

	Hannes
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