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

Hiroyuki KAMEZAWA
2004-10-13T08:56:38Z

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