From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 26 Sep 2006 08:23:22 -0700 (PDT) From: Christoph Lameter Subject: Re: virtual memmap sparsity: Dealing with fragmented MAX_ORDER blocks In-Reply-To: <451918D9.4080001@shadowen.org> Message-ID: References: <4517CB69.9030600@shadowen.org> <45181B4F.6060602@shadowen.org> <451918D9.4080001@shadowen.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Andy Whitcroft Cc: linux-mm@kvack.org List-ID: On Tue, 26 Sep 2006, Andy Whitcroft wrote: > Well we'd really want it to be a page of page*'s marked as in > PG_reserved and probabally in an invalid zone or some such to prevent > them coelesing with logically adjacent buddies. If we use a zero page for the memory map then we have a series of struct pages with the pagebuddy flag cleared. No merging will occur. -- 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