From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Sandeen Subject: Re: [EXT4 set 6][PATCH 1/1]Export jbd stats through procfs Date: Fri, 30 Nov 2007 17:08:27 -0600 Message-ID: <475097EB.30604@redhat.com> References: <1183275490.4010.134.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-ext4@vger.kernel.org To: cmm@us.ibm.com Return-path: Received: from mx1.redhat.com ([66.187.233.31]:42183 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755434AbXK3XIk (ORCPT ); Fri, 30 Nov 2007 18:08:40 -0500 In-Reply-To: <1183275490.4010.134.camel@localhost.localdomain> Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org Mingming Cao wrote: > [PATCH] jbd2 stats through procfs > > The patch below updates the jbd stats patch to 2.6.20/jbd2. > The initial patch was posted by Alex Tomas in December 2005 > (http://marc.info/?l=linux-ext4&m=113538565128617&w=2). > It provides statistics via procfs such as transaction lifetime and size. > > [ This probably should be rewritten to use debugfs? -- Ted] > > Signed-off-by: Johann Lombardi I've started going through this one to clean it up to the point where it can go forward. It's been sitting at the top of the unstable portion of the patch queue for long enough, I think :) I've converted the msecs to jiffies until the user boundary, changed the union #defines as suggested by Andrew, and various other little issues etc. Remaining to do is a generic time-difference calculator (instead of jbd2_time_diff), and looking into whether it should be made a config option; I tend to think it should, but it's fairly well sprinkled through the code, so I'll see how well that works. Also did we ever decided if this should go to debugfs? Thanks, -Eric