From patchwork Tue May 10 14:01:46 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anand Jain X-Patchwork-Id: 9058031 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 74AF1BF29F for ; Tue, 10 May 2016 14:02:26 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8F6592014A for ; Tue, 10 May 2016 14:02:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9DD6A2010E for ; Tue, 10 May 2016 14:02:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752655AbcEJOCR (ORCPT ); Tue, 10 May 2016 10:02:17 -0400 Received: from aserp1040.oracle.com ([141.146.126.69]:28565 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752594AbcEJOCL (ORCPT ); Tue, 10 May 2016 10:02:11 -0400 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id u4AE27EY009680 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 10 May 2016 14:02:08 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id u4AE27KI002929 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 10 May 2016 14:02:07 GMT Received: from abhmp0018.oracle.com (abhmp0018.oracle.com [141.146.116.24]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id u4AE255P001338; Tue, 10 May 2016 14:02:06 GMT Received: from arch2.sg.oracle.com (/10.186.101.65) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 10 May 2016 07:02:04 -0700 From: Anand Jain To: linux-btrfs@vger.kernel.org Cc: dsterba@suse.cz, yauhen.kharuzhy@zavadatar.com Subject: [PATCH 08/13] btrfs: support btrfs dev scan for spare device Date: Tue, 10 May 2016 22:01:46 +0800 Message-Id: <1462888911-5227-10-git-send-email-anand.jain@oracle.com> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1462888911-5227-1-git-send-email-anand.jain@oracle.com> References: <1462888911-5227-1-git-send-email-anand.jain@oracle.com> X-Source-IP: aserv0022.oracle.com [141.146.126.234] Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Spam-Status: No, score=-9.0 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: Anand Jain When the user or system calls the BTRFS_IOC_SCAN_DEV, ioctl this patch will make sure it is added to the device list and set it as spare. This operation will be same when BTRFS_IOC_DEVICES_READY as well since BTRFS_IOC_DEVICES_READY ioctl has been doing that by legacy. Signed-off-by: Anand Jain Tested-by: Austin S. Hemmelgarn Tested-by: Yauhen Kharuzhy --- fs/btrfs/volumes.c | 4 ++++ fs/btrfs/volumes.h | 2 ++ 2 files changed, 6 insertions(+) diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index cf0d65dd443b..fdbad75506df 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -605,6 +605,10 @@ static noinline int device_list_add(const char *path, if (IS_ERR(fs_devices)) return PTR_ERR(fs_devices); + if (btrfs_super_incompat_flags(disk_super) & + BTRFS_FEATURE_INCOMPAT_SPARE_DEV) + fs_devices->spare = 1; + list_add(&fs_devices->list, &fs_uuids); device = NULL; diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index 101e5db2dd63..65a1d8a45c2d 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -263,6 +263,8 @@ struct btrfs_fs_devices { struct kobject fsid_kobj; struct kobject *device_dir_kobj; struct completion kobj_unregister; + + int spare; }; #define BTRFS_BIO_INLINE_CSUM_SIZE 64