From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.gmx.net ([212.227.17.20]:54721 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751382AbdJPAvK (ORCPT ); Sun, 15 Oct 2017 20:51:10 -0400 Subject: Re: Why isnt NOCOW attributes propogated on snapshot transfers? To: Cerem Cem ASLAN , linux-btrfs@vger.kernel.org References: From: Qu Wenruo Message-ID: Date: Mon, 16 Oct 2017 08:51:04 +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: On 2017年10月15日 09:19, Cerem Cem ASLAN wrote: > `btrfs send | btrfs receive` removes NOCOW attributes. Is it a bug or > a feature? If it's a feature, how can we keep these attributes if we > need to? It seems that, current send doesn't have support for extra inode flags. Send can only send out c/m/atime, uid/gid and xattr. Since NODATACOW is stored in inode item flags, not xattr, so it's not supported yet. Thanks, Qu > -- > 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 >