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 n3J8JZek234780 for ; Sun, 19 Apr 2009 03:19:35 -0500 Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 68E861431808 for ; Sun, 19 Apr 2009 01:21:59 -0700 (PDT) Received: from mail.internode.on.net (bld-mail02.adl2.internode.on.net [203.16.214.66]) by cuda.sgi.com with ESMTP id eqPNCJGD5MTciv6G for ; Sun, 19 Apr 2009 01:21:59 -0700 (PDT) Date: Sun, 19 Apr 2009 18:19:27 +1000 From: Dave Chinner Subject: Re: XFS support for TRIM / blkdev_issue_discard? Message-ID: <20090419081927.GE16929@discord.disaster> References: <20090331053013.7642414167108@attica.americas.sgi.com> <49E4A131.5040309@isg.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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: Felix Blyakher Cc: Peter Niemayer , xfs@oss.sgi.com On Tue, Apr 14, 2009 at 01:32:35PM -0500, Felix Blyakher wrote: > > On Apr 14, 2009, at 9:44 AM, Peter Niemayer wrote: > >> Dear Felix Blyakher, > > Hi Peter, > >> do you know whether there are plans to support the ATA TRIM command / >> blkdev_issue_discard() call in XFS for Linux anytime soon? > > This topic was indeed brought up in xfs discussions. > Though, we don't have any definite plans on supporting it yet. I did some initial work on tracking extents being freed, but then the TRIM request morphed into a "tell the largest free space around the area just freed" and that is much harder to do than simply to issue a "we just freed this bit" command. Cheers, Dave. -- Dave Chinner dgc@evostor.com _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs