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Wed, 22 Mar 2023 16:58:49 +0000 Received: from SEZPR06MB5269.apcprd06.prod.outlook.com ([fe80::daf6:5ebb:a93f:1869]) by SEZPR06MB5269.apcprd06.prod.outlook.com ([fe80::daf6:5ebb:a93f:1869%9]) with mapi id 15.20.6178.037; Wed, 22 Mar 2023 16:58:48 +0000 From: Yangtao Li To: clm@fb.com, josef@toxicpanda.com, dsterba@suse.com, xiang@kernel.org, chao@kernel.org, huyue2@coolpad.com, jefflexu@linux.alibaba.com, jaegeuk@kernel.org, trond.myklebust@hammerspace.com, anna@kernel.org, konishi.ryusuke@gmail.com, mark@fasheh.com, jlbec@evilplan.org, joseph.qi@linux.alibaba.com, richard@nod.at, djwong@kernel.org, damien.lemoal@opensource.wdc.com, naohiro.aota@wdc.com, jth@kernel.org, gregkh@linuxfoundation.org, rafael@kernel.org Cc: linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-f2fs-devel@lists.sourceforge.net, linux-nfs@vger.kernel.org, linux-nilfs@vger.kernel.org, ocfs2-devel@oss.oracle.com, linux-mtd@lists.infradead.org, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, Yangtao Li Subject: [PATCH v3 01/10] kobject: introduce kobject_del_and_put() Date: Thu, 23 Mar 2023 00:58:30 +0800 Message-Id: <20230322165830.55071-1-frank.li@vivo.com> X-Mailer: git-send-email 2.35.1 X-ClientProxiedBy: SI2PR04CA0006.apcprd04.prod.outlook.com (2603:1096:4:197::13) To SEZPR06MB5269.apcprd06.prod.outlook.com (2603:1096:101:78::6) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SEZPR06MB5269:EE_|SG2PR06MB5238:EE_ X-MS-Office365-Filtering-Correlation-Id: bdf0ab43-7108-4dbe-3a25-08db2af6b457 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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This patch wraps these two calls in a single helper. Signed-off-by: Yangtao Li Reviewed-by: Damien Le Moal --- v3: -convert to inline helper v2: -add kobject_del_and_put() users include/linux/kobject.h | 13 +++++++++++++ lib/kobject.c | 3 +-- 2 files changed, 14 insertions(+), 2 deletions(-) diff --git a/include/linux/kobject.h b/include/linux/kobject.h index bdab370a24f4..e21b7c22e355 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -112,6 +112,19 @@ extern struct kobject * __must_check kobject_get_unless_zero( struct kobject *kobj); extern void kobject_put(struct kobject *kobj); +/** + * kobject_del_and_put() - Delete kobject. + * @kobj: object. + * + * Unlink kobject from hierarchy and decrement the refcount. + * If refcount is 0, call kobject_cleanup(). + */ +static inline void kobject_del_and_put(struct kobject *kobj) +{ + kobject_del(kobj); + kobject_put(kobj); +} + extern const void *kobject_namespace(const struct kobject *kobj); extern void kobject_get_ownership(const struct kobject *kobj, kuid_t *uid, kgid_t *gid); diff --git a/lib/kobject.c b/lib/kobject.c index f79a434e1231..e6c5a3ff1c53 100644 --- a/lib/kobject.c +++ b/lib/kobject.c @@ -876,8 +876,7 @@ void kset_unregister(struct kset *k) { if (!k) return; - kobject_del(&k->kobj); - kobject_put(&k->kobj); + kobject_del_and_put(&k->kobj); } EXPORT_SYMBOL(kset_unregister); From patchwork Wed Mar 22 16:59:04 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yangtao Li X-Patchwork-Id: 13184356 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BB18AC6FD1F for ; Wed, 22 Mar 2023 17:00:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231355AbjCVRAr (ORCPT ); Wed, 22 Mar 2023 13:00:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49284 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229864AbjCVRAU (ORCPT ); Wed, 22 Mar 2023 13:00:20 -0400 Received: from APC01-SG2-obe.outbound.protection.outlook.com (mail-sgaapc01on2121.outbound.protection.outlook.com [40.107.215.121]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4A0F96424C; Wed, 22 Mar 2023 10:00:09 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=QL/oOhQrSz35vBE9J7e50R/FitHYcoL4INcXJQf/2gRU7hS+CMUmWtC8ZIBSQCig7u5LWYEckq69TAGFHfYsSA7QatKHfqBVumFbmZkMp3+8dW7JYhbiiJaJV30FsRwhnWSxuv2L7iMUN2sb0NElDyJy4y952FAUye/AqlalmxXMomw11tUMo2YcA5yhykpzQfkB+J117Sn2WXtymgAAZyzeABtQU5akeDPw0E2H+hNvnS8h01TOhkcnqzazNe1TQU20ymQTAuTf8deg7Ea2Hvwt2cY+XwIT/5iu5KXA+BeYxwijFrS5fURiRu6bCXVsX9IzBloPvpsQgxuZCZ3yBw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=EC23nHvmsjk047LeZyGTlxwogRKKTMdhTbyermoaPGI=; b=FBfP00X+21Il+aLnFK+E83n/g9WiQOXqCXuBOPUdeiSQq5AIBvBy3TckWwkKhlP86hyxsr1CuYPKXqobKET6cZ7IXlgq994fWCC8Cd6SXAvbjua40baI0Qa/NFXSKEhUE/W7/z3EP1LyfkOgJ8mu8JiKdgHNHOcDRWeCv0pHVclwH/xVjkeYGrpU877y8JHD7A5GfV97xS7fbkEvOuMsy2FnVZBPuHUUfr8YJAKpRg4eUP2aCUJlhA6YSncuYIv7BZBY+QRArKDHl67oMufvt33DqOfeVNuhSd7PQGJyGlWzyq5u6eTwoKPV5xJcXfME9NVePVKVGj8h5CEe4RfZxg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=vivo.com; dmarc=pass action=none header.from=vivo.com; dkim=pass header.d=vivo.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=vivo.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=EC23nHvmsjk047LeZyGTlxwogRKKTMdhTbyermoaPGI=; b=Lk1xwnCQtqD47+KjWPuBwnu+xm1sbuzeWiCSZve82uPNCyHbiYPYx/a9vLrSHwC06WHHwJn3myFXZi7NCv+SMRFIVl2S9It6nbT3vM+sfnwdyDSFxQB09FxWygHi/CuDlIgaoR9rmLTvCN+89k83/eI5H1HX98ctR6XHtqkzmhDQDw2m5oY4+KieVHtgWEEbzIakGzPeH0TGFhbXAh07fmJPORofmV5J/iB2eQGuL0Ol2gn5dUV4Ac62tsDI4Owpr+M+h1AVTjC5KFS9qDWrdpacALXhza1mybn64aRpRncDuGf8XleTwRsl2bVJ8fbW6FQj9USjjBCQtsGUk3vtYw== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=vivo.com; Received: from SEZPR06MB5269.apcprd06.prod.outlook.com (2603:1096:101:78::6) by SI2PR06MB4107.apcprd06.prod.outlook.com (2603:1096:4:f1::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6178.37; Wed, 22 Mar 2023 16:59:58 +0000 Received: from SEZPR06MB5269.apcprd06.prod.outlook.com ([fe80::daf6:5ebb:a93f:1869]) by SEZPR06MB5269.apcprd06.prod.outlook.com ([fe80::daf6:5ebb:a93f:1869%9]) with mapi id 15.20.6178.037; Wed, 22 Mar 2023 16:59:58 +0000 From: Yangtao Li To: Trond Myklebust , Anna Schumaker Cc: Yangtao Li , Greg Kroah-Hartman , "Rafael J. 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Cc: Greg Kroah-Hartman Cc: "Rafael J. Wysocki" Cc: Damien Le Moal Signed-off-by: Yangtao Li Reviewed-by: Damien Le Moal --- fs/nfs/sysfs.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/fs/nfs/sysfs.c b/fs/nfs/sysfs.c index 0cbcd2dfa732..a6072be5fa5a 100644 --- a/fs/nfs/sysfs.c +++ b/fs/nfs/sysfs.c @@ -185,8 +185,7 @@ void nfs_netns_sysfs_destroy(struct nfs_net *netns) if (clp) { kobject_uevent(&clp->kobject, KOBJ_REMOVE); - kobject_del(&clp->kobject); - kobject_put(&clp->kobject); + kobject_del_and_put(&clp->kobject); netns->nfs_client = NULL; } }