On Fri, Apr 27, 2007 at 10:14:20PM +1000, Paul Mackerras wrote:
> It's not as simple on 64-bit powerpc with the hash table of course,
> because the page size is chosen at the segment (256MB) level,
> restricting where we can put 64k and 16M pages to some degree.
I think Christoph's variable order pagecache should be perfectly
fine on ppc64. We're selecting the pagesize on a per-file basis,
and the page size selection would choce which segement this mmap
gets into. Ben's get_unmapped_area changes are very helpfull for that.
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