From patchwork Fri Mar 20 10:01:30 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anand Jain X-Patchwork-Id: 6055161 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 61822BF90F for ; Fri, 20 Mar 2015 10:04:36 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 99C3E204EC for ; Fri, 20 Mar 2015 10:04:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A905C20465 for ; Fri, 20 Mar 2015 10:04:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751854AbbCTKEa (ORCPT ); Fri, 20 Mar 2015 06:04:30 -0400 Received: from userp1040.oracle.com ([156.151.31.81]:36519 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751591AbbCTKEY (ORCPT ); Fri, 20 Mar 2015 06:04:24 -0400 Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id t2KA4Mcc020173 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 20 Mar 2015 10:04:22 GMT Received: from userz7022.oracle.com (userz7022.oracle.com [156.151.31.86]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id t2KA4M5m012335 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 20 Mar 2015 10:04:22 GMT Received: from abhmp0004.oracle.com (abhmp0004.oracle.com [141.146.116.10]) by userz7022.oracle.com (8.14.5+Sun/8.14.4) with ESMTP id t2KA4LSu026858; Fri, 20 Mar 2015 10:04:21 GMT Received: from OL.sg.oracle.com (/10.186.101.34) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 20 Mar 2015 03:04:21 -0700 From: Anand Jain To: linux-btrfs@vger.kernel.org Cc: dsterba@suse.cz Subject: [PATCH 15/27] Btrfs: sysfs: provide framework to remove all fsid sysfs kobject Date: Fri, 20 Mar 2015 18:01:30 +0800 Message-Id: <1426845702-6298-16-git-send-email-anand.jain@oracle.com> X-Mailer: git-send-email 2.0.0.153.g79dcccc In-Reply-To: <1426845702-6298-1-git-send-email-anand.jain@oracle.com> References: <1425940724-7744-1-git-send-email-anand.jain@oracle.com> <1426845702-6298-1-git-send-email-anand.jain@oracle.com> X-Source-IP: userv0022.oracle.com [156.151.31.74] Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_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 just a helper function to clean up the sysfs fsid kobjects Signed-off-by: Anand Jain --- fs/btrfs/sysfs.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c index 95d6257..a8ee136 100644 --- a/fs/btrfs/sysfs.c +++ b/fs/btrfs/sysfs.c @@ -515,7 +515,7 @@ static int addrm_unknown_feature_attrs(struct btrfs_fs_info *fs_info, bool add) return 0; } -static void btrfs_sysfs_remove_fsid(struct btrfs_fs_devices *fs_devs) +static void __btrfs_sysfs_remove_fsid(struct btrfs_fs_devices *fs_devs) { if (fs_devs->device_dir_kobj) { kobject_del(fs_devs->device_dir_kobj); @@ -528,6 +528,21 @@ static void btrfs_sysfs_remove_fsid(struct btrfs_fs_devices *fs_devs) wait_for_completion(&fs_devs->kobj_unregister); } +/* when fs_devs is NULL it will remove all fsid kobject */ +static void btrfs_sysfs_remove_fsid(struct btrfs_fs_devices *fs_devs) +{ + struct list_head *fs_uuids = btrfs_get_fs_uuids(); + + if (fs_devs) { + __btrfs_sysfs_remove_fsid(fs_devs); + return; + } + + list_for_each_entry(fs_devs, fs_uuids, list) { + __btrfs_sysfs_remove_fsid(fs_devs); + } +} + void btrfs_sysfs_remove_one(struct btrfs_fs_info *fs_info) { btrfs_reset_fs_info_ptr(fs_info);