From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: with ECARTIS (v1.0.0; list xfs); Tue, 07 Oct 2008 14:39:57 -0700 (PDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.168.28]) by oss.sgi.com (8.12.11.20060308/8.12.11/SuSE Linux 0.7) with ESMTP id m97LdsXk030953 for ; Tue, 7 Oct 2008 14:39:55 -0700 Received: from ipmail05.adl2.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id D67BC129BB4C for ; Tue, 7 Oct 2008 14:41:34 -0700 (PDT) Received: from ipmail05.adl2.internode.on.net (ipmail05.adl2.internode.on.net [203.16.214.145]) by cuda.sgi.com with ESMTP id D31xwmk3UIgyPmAR for ; Tue, 07 Oct 2008 14:41:34 -0700 (PDT) Received: from dave by disturbed with local (Exim 4.69) (envelope-from ) id 1KnKJA-0001g4-If for xfs@oss.sgi.com; Wed, 08 Oct 2008 08:41:32 +1100 From: Dave Chinner Subject: [PATCH 0/6] XFS: replace the mount inode list with radix tree traversals Date: Wed, 8 Oct 2008 08:41:26 +1100 Message-Id: <1223415692-6354-1-git-send-email-david@fromorbit.com> Sender: xfs-bounce@oss.sgi.com Errors-to: xfs-bounce@oss.sgi.com List-Id: xfs To: xfs@oss.sgi.com The list of all inodes on a mount is superfluous. We can traverse all inodes now by walking the per-AG inode radix trees without needing a separate list. This enables us to remove a bunch of complex list traversal code and remove another two pointers from the xfs_inode. Also, by replacing the sync traversal with an ascending inode number traversal, we will issue better inode I/O patterns for writeback triggered by xfssyncd or unmount. Before we make this change, move all the relevant sync code into it's own file in the linux-2.6/ directory. This aggregates VFS specific sync interfacing in the one file and will allow all the subsequent change history to be associated with this file so it is easy to find in future.