From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paolo Bonzini Subject: Re: [PATCH 0/2] Add FALLOC_FL_ZERO_RANGE to fallocate Date: Wed, 13 Jun 2012 08:13:29 +0200 Message-ID: <4FD82F89.80106@redhat.com> References: <1339515364-17374-1-git-send-email-pbonzini@redhat.com> <20120613013549.GO22848@dastard> <20120613033052.GT22848@dastard> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, Al Viro , xfs@oss.sgi.com To: Dave Chinner Return-path: Received: from mx1.redhat.com ([209.132.183.28]:3902 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752327Ab2FMGNf (ORCPT ); Wed, 13 Jun 2012 02:13:35 -0400 In-Reply-To: <20120613033052.GT22848@dastard> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: Il 13/06/2012 05:30, Dave Chinner ha scritto: >> > >> > Also, a minor nit, but you should credit where this code has >> > originated from in the commit messages, and describe the use case >> > for requiring it. i.e. based on: >> > >> > http://permalink.gmane.org/gmane.linux.file-systems/62449 Interesting, I didn't know this---I wrote the code from scratch. I took the description from the man pages ("This operation is a fast method of overwriting any from the range specified with zeros without removing any blocks or having to write zeros to disk"), so perhaps those will have to be patched as well. > Oh, and you'll need to provide a new xfstests test based on 242 that > uses the new fallocate interface, and to do that you'll also need to > add support for the new fallocate function in xfs_io. Sure. Thanks for the hints, I'll submit a v2 (may take a while as I'll leave for holiday soon). Paolo