From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cn.fujitsu.com ([59.151.112.132]:22833 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1751188AbdDCBEb (ORCPT ); Sun, 2 Apr 2017 21:04:31 -0400 Subject: Re: Is btrfs-convert able to deal with sparse files in a ext4 filesystem? To: Kai Herlemann , References: From: Qu Wenruo Message-ID: Date: Mon, 3 Apr 2017 09:04:27 +0800 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="utf-8"; format=flowed Sender: linux-btrfs-owner@vger.kernel.org List-ID: At 04/01/2017 05:48 PM, Kai Herlemann wrote: > Hi, > I have on my ext4 filesystem some sparse files, mostly images from > ext4 filesystems. > Is btrfs-convert (4.9.1) able to deal with sparse files or can that > cause any problems? AFAIK, btrfs convert can handle it well, not matter if it's sparse or not. Secondly, it's strongly recommended to use latest btrfs-convert, which is 4.10.2. Although the convert part is not changed in recent release, but the rollback part (which rolls converted btrfs back to ext*) under goes a large modification to co-operate with convert. Without that modification, rollback is not functional, which is fine if you don't want to rollback to ext*, but just in case. Thanks, Qu > > Thanks in advance, > Kai > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > >