From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id q5M8oVaj257042 for ; Fri, 22 Jun 2012 03:50:31 -0500 Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id lMzp4NDNv0Kx6nVS for ; Fri, 22 Jun 2012 01:50:29 -0700 (PDT) Received: from [192.168.1.1] (helo=disappointment) by dastard with esmtp (Exim 4.76) (envelope-from ) id 1ShzZU-0005Rm-92 for xfs@oss.sgi.com; Fri, 22 Jun 2012 18:50:28 +1000 Received: from dave by disappointment with local (Exim 4.77) (envelope-from ) id 1ShzZK-0006q5-6q for xfs@oss.sgi.com; Fri, 22 Jun 2012 18:50:18 +1000 From: Dave Chinner Subject: [PATCH 0/9, V2] xfs; discontiguous buffer support Date: Fri, 22 Jun 2012 18:50:06 +1000 Message-Id: <1340355015-26250-1-git-send-email-david@fromorbit.com> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com This is the latest version of the native xfs_buf discontiguous buffer support series. The series introduces the concept of buffer block maps, then adds APIs for using them, converts the internal xfs_buf method implementation to use them exclusively, adds support for discontiguous buffer log items in transactions, converts the directory code to use them and finally removes the xfs_dabuf from the picture. This greatly simplifies the directory buffer code and avoids copy-up/copy-down for discontiguous buffers. It also avoids needing to create and destroy a xfs-dabuf for every directory block that is read or written, greatly reducing buffer setup and teardown overhead and memory footprint. Version 2: - addressed Christoph's comments - reordered to bring the xfs_buf_log_format changes up front - rebased on a current 3.5-rc + xfs-oss/master tree _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs