From patchwork Sat Apr 2 01:30:41 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anand Jain X-Patchwork-Id: 8730031 Return-Path: X-Original-To: patchwork-linux-btrfs@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id C0DABC0553 for ; Sat, 2 Apr 2016 01:31:42 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 96791200F2 for ; Sat, 2 Apr 2016 01:31:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 729AD203A0 for ; Sat, 2 Apr 2016 01:31:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932286AbcDBBbV (ORCPT ); Fri, 1 Apr 2016 21:31:21 -0400 Received: from userp1040.oracle.com ([156.151.31.81]:48411 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932241AbcDBBbT (ORCPT ); Fri, 1 Apr 2016 21:31:19 -0400 Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id u321VB3b032097 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Sat, 2 Apr 2016 01:31:11 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by aserv0021.oracle.com (8.13.8/8.13.8) with ESMTP id u321VADj009986 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Sat, 2 Apr 2016 01:31:11 GMT Received: from abhmp0019.oracle.com (abhmp0019.oracle.com [141.146.116.25]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id u321VAdq014075; Sat, 2 Apr 2016 01:31:10 GMT Received: from arch2.localdomain (/42.60.24.64) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 01 Apr 2016 18:31:09 -0700 From: Anand Jain To: linux-btrfs@vger.kernel.org Cc: yauhen.kharuzhy@zavadatar.com, dsterba@suse.cz Subject: [PATCH 03/13] btrfs: Do per-chunk degraded check for remount Date: Sat, 2 Apr 2016 09:30:41 +0800 Message-Id: <1459560651-14809-4-git-send-email-anand.jain@oracle.com> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1459560651-14809-1-git-send-email-anand.jain@oracle.com> References: <1459560651-14809-1-git-send-email-anand.jain@oracle.com> X-Source-IP: aserv0021.oracle.com [141.146.126.233] Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Spam-Status: No, score=-7.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Qu Wenruo Just the same for mount time check, use new btrfs_check_degraded() to do per chunk check. Signed-off-by: Qu Wenruo Btrfs: use btrfs_error instead of btrfs_err during remount Signed-off-by: Anand Jain --- fs/btrfs/super.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 00b8f37cc306..87639fa53b10 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -1767,11 +1767,14 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data) goto restore; } - if (fs_info->fs_devices->missing_devices > - fs_info->num_tolerated_disk_barrier_failures && - !(*flags & MS_RDONLY)) { + ret = btrfs_check_degradable(fs_info, *flags); + if (ret < 0) { + btrfs_err(fs_info, + "degraded writable remount failed %d", ret); + goto restore; + } else if (ret > 0 && !btrfs_test_opt(root, DEGRADED)) { btrfs_warn(fs_info, - "too many missing devices, writeable remount is not allowed"); + "some device missing, but still degraded mountable, please remount with -o degraded option"); ret = -EACCES; goto restore; }