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Date: Mon, 7 Mar 2011 17:38:53 +0900 (JST) From: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> To: Andi Kleen <andi@...stfloor.org> Cc: kosaki.motohiro@...fujitsu.com, akpm@...ux-foundation.org, linux-mm@...ck.org, linux-kernel@...r.kernel.org, Andi Kleen <ak@...ux.intel.com> Subject: Re: [PATCH 5/8] Use correct numa policy node for transparent hugepages > From: Andi Kleen <ak@...ux.intel.com> > > Pass down the correct node for a transparent hugepage allocation. > Most callers continue to use the current node, however the hugepaged > daemon now uses the previous node of the first to be collapsed page > instead. This ensures that khugepaged does not mess up local memory > for an existing process which uses local policy. > > The choice of node is somewhat primitive currently: it just > uses the node of the first page in the pmd range. An alternative > would be to look at multiple pages and use the most popular > node. I used the simplest variant for now which should work > well enough for the case of all pages being on the same node. > > Acked-by: Andrea Arcangeli <aarcange@...hat.com> > Signed-off-by: Andi Kleen <ak@...ux.intel.com> > Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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