Messages in this thread |  | | Date | Wed, 13 Oct 2004 17:44:10 +0900 | From | Hiroyuki KAMEZAWA <> | Subject | Re: bug in 2.6.9-rc4-mm1 ia64/mm/init.c |
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David Mosberger wrote:
> Why was this patch even accepted? It seemed rather dubious to me and > I don't recall much discussion on its merits or safety. > > --david
At first, that patch it is not essential to no-bitmap-buddy patch, and removing it is okay. It seems that test and discussion are not enough now.
Since I heared that all of the pages in a granule on ia64 are guaranteed to exist, I included that in no-bitmap-buddy-patch. (when pagesize=16k/granule=16M,I think this has no effect.)
My purpose was to reduce # of page fault when ia64_pfn_valid() is called. It is called heavily in bad_range() (in mm/page_alloc.c) now.
Kame <kamezawa.hiroyu@jp.fujitsu.com>
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