From patchwork Wed Feb 12 09:28:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anand Jain X-Patchwork-Id: 11378053 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7E1D41820 for ; Wed, 12 Feb 2020 09:28:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5E66020848 for ; Wed, 12 Feb 2020 09:28:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="mhbGHfTi" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728842AbgBLJ2Z (ORCPT ); Wed, 12 Feb 2020 04:28:25 -0500 Received: from userp2120.oracle.com ([156.151.31.85]:47648 "EHLO userp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728696AbgBLJ2Z (ORCPT ); Wed, 12 Feb 2020 04:28:25 -0500 Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 01C9NXdR169942 for ; Wed, 12 Feb 2020 09:28:24 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : subject : date : message-id : in-reply-to : references; s=corp-2020-01-29; bh=Y1U3iExtXWE6VLniF0QJQzW6Pw/l3ciehVRdSVp494Q=; b=mhbGHfTibGQrXeaHm7TO6Ldyb5hpaJm552ZBYzrS2FhZhPBnEXEssCHVJwMYJLr3xSE+ 76WHK5KxS4GdbUTiPrkv+p7NuiAp/3q/6w2xp5WRi2eJdV2JILKOWPYAInABTmAF2LJ0 RJgHzrLA0u7gajgOSgy6vlSEKB+jAZCImztsc9cr3SrfDCXAZNAlFh9xo9HLEdjgYgop T/zAM3n4nvcUyKNWkAvzO7sUQ98QWQNNbdGRWAUmr8eqf+CIKUYd0hulX+a+idkjFYiR UKVPzxBOsTyn0iBgF37j3lX6GG/SOI7WE4MclzP9zVQgtPa1S/dzkLbMkv1K/6fROqyS MA== Received: from aserp3020.oracle.com (aserp3020.oracle.com [141.146.126.70]) by userp2120.oracle.com with ESMTP id 2y2p3sgt6r-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Wed, 12 Feb 2020 09:28:24 +0000 Received: from pps.filterd (aserp3020.oracle.com [127.0.0.1]) by aserp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 01C9MUBo041038 for ; Wed, 12 Feb 2020 09:28:23 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserp3020.oracle.com with ESMTP id 2y26svwkbd-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Wed, 12 Feb 2020 09:28:23 +0000 Received: from abhmp0006.oracle.com (abhmp0006.oracle.com [141.146.116.12]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 01C9SMcf010094 for ; Wed, 12 Feb 2020 09:28:22 GMT Received: from tp.localdomain (/39.109.145.141) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 12 Feb 2020 01:28:22 -0800 From: Anand Jain To: linux-btrfs@vger.kernel.org Subject: [PATCH v2 1/4] btrfs: sysfs, add UUID/devinfo kobject Date: Wed, 12 Feb 2020 17:28:10 +0800 Message-Id: <1581499693-22407-2-git-send-email-anand.jain@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1581499693-22407-1-git-send-email-anand.jain@oracle.com> References: <1581499693-22407-1-git-send-email-anand.jain@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9528 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 phishscore=0 mlxscore=0 malwarescore=0 bulkscore=0 spamscore=0 suspectscore=1 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2002120075 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9528 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 mlxscore=0 malwarescore=0 suspectscore=1 mlxlogscore=999 priorityscore=1501 clxscore=1015 impostorscore=0 lowpriorityscore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2002120075 Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Creates kobject /sys/fs/btrfs/UUID/devinfo to hold btrfs_fs_devices::dev_state attribute. Signed-off-by: Anand Jain --- v2: update change log. fs/btrfs/sysfs.c | 15 +++++++++++++++ fs/btrfs/volumes.h | 1 + 2 files changed, 16 insertions(+) diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c index 7436422194da..6bac61c42c05 100644 --- a/fs/btrfs/sysfs.c +++ b/fs/btrfs/sysfs.c @@ -901,6 +901,12 @@ static int addrm_unknown_feature_attrs(struct btrfs_fs_info *fs_info, bool add) static void __btrfs_sysfs_remove_fsid(struct btrfs_fs_devices *fs_devs) { + if (fs_devs->devinfo_kobj) { + kobject_del(fs_devs->devinfo_kobj); + kobject_put(fs_devs->devinfo_kobj); + fs_devs->devinfo_kobj = NULL; + } + if (fs_devs->devices_kobj) { kobject_del(fs_devs->devices_kobj); kobject_put(fs_devs->devices_kobj); @@ -1369,6 +1375,15 @@ int btrfs_sysfs_add_fsid(struct btrfs_fs_devices *fs_devs) return -ENOMEM; } + fs_devs->devinfo_kobj = kobject_create_and_add("devinfo", + &fs_devs->fsid_kobj); + if (!fs_devs->devinfo_kobj) { + btrfs_err(fs_devs->fs_info, + "failed to init sysfs devinfo kobject"); + btrfs_sysfs_remove_fsid(fs_devs); + return -ENOMEM; + } + return 0; } diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index 690d4f5a0653..309cda477589 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -258,6 +258,7 @@ struct btrfs_fs_devices { /* sysfs kobjects */ struct kobject fsid_kobj; struct kobject *devices_kobj; + struct kobject *devinfo_kobj; struct completion kobj_unregister; };