Re: bug in 2.6.9-rc4-mm1 ia64/mm/init.c

From: Hiroyuki KAMEZAWA <kamezawa.hiroyu_at_jp.fujitsu.com>
Date: 2004-10-13 19:02:06
David Mosberger wrote:

>>>>>>On Wed, 13 Oct 2004 17:44:10 +0900, Hiroyuki KAMEZAWA <kamezawa.hiroyu@jp.fujitsu.com> said:
> 
> 
>   Hiroyuki> My purpose was to reduce # of page fault when
>   Hiroyuki> ia64_pfn_valid() is called.  It is called heavily in
>   Hiroyuki> bad_range() (in mm/page_alloc.c) now.
> 
> At the expense of ignoring perfectly good memory?  Or did I miss something?
> 
> 	--david

Am I ignoring some good memory ?
I think GRANULEROUNDDOWN(start)/GRANULEROUNDUP(end) only expand valid pfn range,
do I misunderstanding something ?



-- Kame
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Received on Wed Oct 13 04:56:48 2004

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