From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id n5G0I9h5134223 for ; Mon, 15 Jun 2009 19:18:09 -0500 Received: from kuber.nabble.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 0BEA31AD8965 for ; Mon, 15 Jun 2009 17:18:32 -0700 (PDT) Received: from kuber.nabble.com (kuber.nabble.com [216.139.236.158]) by cuda.sgi.com with ESMTP id b97xgBfJQjz1ABtH for ; Mon, 15 Jun 2009 17:18:32 -0700 (PDT) Received: from isper.nabble.com ([192.168.236.156]) by kuber.nabble.com with esmtp (Exim 4.63) (envelope-from ) id 1MGMNk-0003jp-0L for linux-xfs@oss.sgi.com; Mon, 15 Jun 2009 17:18:32 -0700 Message-ID: <24042506.post@talk.nabble.com> Date: Mon, 15 Jun 2009 17:18:32 -0700 (PDT) From: Smit Shah Subject: XFS Preallocate using ALLOCSP MIME-Version: 1.0 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: linux-xfs@oss.sgi.com Hi, I wanted to preallocate the file using the ALLOCSP so that the preallocated space is zeroed out. Hence i used the xfsctl but the problem is that i cannot execute it as a non-root user. So i tried using fallocate but when i saw the xfs implementation of kernel it uses the RESVP cmd and since the unwritten flag is set i am assuming that the performance of writing to the preallocated space will suffer because of the metadata updates. So is there a way to preallocate using ALLOCSP as a non-root user or else i would be required to modify the kernel ?? TIA, Smit -- View this message in context: http://www.nabble.com/XFS-Preallocate-using-ALLOCSP-tp24042506p24042506.html Sent from the linux-xfs mailing list archive at Nabble.com. _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs