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Date: Fri, 8 Jun 2007 08:36:33 -0700 (PDT) From: Christoph Lameter <clameter@....com> To: Mel Gorman <mel@...net.ie> cc: alexn@...ia.com, akpm@...ux-foundation.org, Andy Whitcroft <apw@...dowen.org>, linux-mm@...ck.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] Allow PAGE_OWNER to be set on any architecture On Fri, 8 Jun 2007, Mel Gorman wrote: > In situations where CONFIG_HOLES_IN_ZONES is set (IA64 with VIRTUAL_MEM_MAP), > there may be cases where pages allocated within a MAX_ORDER_NR_PAGES block > of pages may not be displayed in /proc/page_owner if the hole is at the > start of the block. Addressing this would be quite complex, perform slowly > and is of no clear benefit. Note that CONFIG_HOLES_IN_ZONES and IA64 VIRTUAL_MEM_MAP may be going away. Andy Whitcroft has a patchset that implements virtual memmap support under sparse and that would allow us to get rid of this. - 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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