linux-kernel - Re: [PATCH 1/3] mm, nobootmem: fix wrong usage of max_low

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Date:	Tue, 19 Mar 2013 17:07:21 +0900
From:	Joonsoo Kim <iamjoonsoo.kim@....com>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	Johannes Weiner <hannes@...xchg.org>,
	Jiang Liu <liuj97@...il.com>
Subject: Re: [PATCH 1/3] mm, nobootmem: fix wrong usage of max_low_pfn

On Tue, Mar 19, 2013 at 12:35:45AM -0700, Yinghai Lu wrote:
> Can you check why sparc do not need to change interface during converting
> to use memblock to replace bootmem?

Sure.
According to my understanding to sparc32 code(arch/sparc/mm/init_32.c),
they already use max_low_pfn as the maximum PFN value,
not as the number of pages.

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