From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 8 Jun 2007 08:36:33 -0700 (PDT) From: Christoph Lameter Subject: Re: [PATCH] Allow PAGE_OWNER to be set on any architecture In-Reply-To: <20070608125349.GA8444@skynet.ie> Message-ID: References: <20070608125349.GA8444@skynet.ie> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Mel Gorman Cc: alexn@telia.com, akpm@linux-foundation.org, Andy Whitcroft , linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: 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, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org