From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Mon, 22 May 2006 10:52:55 +0100 Subject: [PATCH 0/2] Zone boundary alignment fixes, default configuration Message-ID: References: <447173EF.9090000@shadowen.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline From: Andy Whitcroft Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton Cc: Nick Piggin , Mel Gorman , stable@kernel.org, Linux Memory Management List-ID: I think a concensus is forming that the checks for merging across zones were removed from the buddy allocator without anyone noticing. So I propose that the configuration option UNALIGNED_ZONE_BOUNDARIES default to on, and those architectures which have been auditied for alignment may turn it off. Following this email are two patches: zone-allow-unaligned-zone-boundaries-add-configuration -- adding the configuration option. x86-add-zone-alignment-qualifier -- marking x86 as enforcing alignment. Cheers. -apw -- 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