From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from szxga03-in.huawei.com ([58.251.152.66]:56794 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751082Ab2E2AkQ (ORCPT ); Mon, 28 May 2012 20:40:16 -0400 Received: from huawei.com (szxga03-in [172.24.2.9]) by szxga03-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 2.14 (built Aug 8 2006)) with ESMTP id <0M4R00D8UDW4BA@szxga03-in.huawei.com> for linux-btrfs@vger.kernel.org; Tue, 29 May 2012 08:40:52 +0800 (CST) Received: from szxrg01-dlp.huawei.com ([172.24.2.119]) by szxga03-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 2.14 (built Aug 8 2006)) with ESMTP id <0M4R00DG1DW452@szxga03-in.huawei.com> for linux-btrfs@vger.kernel.org; Tue, 29 May 2012 08:40:52 +0800 (CST) Date: Tue, 29 May 2012 08:40:10 +0800 From: Li Zefan Subject: Re: Make existing snapshots read-only? In-reply-to: <20120528183700.GA9588@untroubled.org> To: bruce@untroubled.org Cc: linux-btrfs@vger.kernel.org Message-id: <4FC41AEA.2040905@huawei.com> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1 References: <20120528183700.GA9588@untroubled.org> Sender: linux-btrfs-owner@vger.kernel.org List-ID: On 2012/5/29 2:37, Bruce Guenter wrote: > > Is there any way to mark existing snapshots as read-only? Making new > ones read-only is easy enough, but what about existing ones? > We have code in the kernel side, so what we need to do is to update btrfs-progs, which is trivial.