From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from userp1040.oracle.com ([156.151.31.81]:21250 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753469AbaLJHto (ORCPT ); Wed, 10 Dec 2014 02:49:44 -0500 Message-ID: <5487FBAF.9090902@oracle.com> Date: Wed, 10 Dec 2014 15:52:15 +0800 From: Anand Jain MIME-Version: 1.0 To: Goffredo Baroncelli CC: linux-btrfs@vger.kernel.org Subject: Re: [PATCH V2][BTRFS-PROGS] Don't use LVM snapshot device References: <1417718382-6753-1-git-send-email-kreijack@inwind.it> In-Reply-To: <1417718382-6753-1-git-send-email-kreijack@inwind.it> Content-Type: text/plain; charset=UTF-8; format=flowed Sender: linux-btrfs-owner@vger.kernel.org List-ID: > This patch allows btrfs to skip LVM snapshot during the device scan > phase. Its better to generalize the problem and fix it. The fix here is very specific to LVM use case. This does not work in cases where device is cloned using dd (device is unmounted). As mentioned we need to depend on the device wwn as provided by the device target driver. Thanks, Anand