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Received: from SEZPR06MB5269.apcprd06.prod.outlook.com (2603:1096:101:78::6) by SI2PR06MB4121.apcprd06.prod.outlook.com (2603:1096:4:fe::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6178.37; Mon, 20 Mar 2023 18:47:14 +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; Mon, 20 Mar 2023 18:47:13 +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: [RESEND,PATCH v2 01/10] kobject: introduce kobject_del_and_put() Date: Tue, 21 Mar 2023 02:46:56 +0800 Message-Id: <20230320184657.56198-1-frank.li@vivo.com> X-Mailer: git-send-email 2.35.1 X-ClientProxiedBy: SG3P274CA0022.SGPP274.PROD.OUTLOOK.COM (2603:1096:4:be::34) To SEZPR06MB5269.apcprd06.prod.outlook.com (2603:1096:101:78::6) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SEZPR06MB5269:EE_|SI2PR06MB4121:EE_ X-MS-Office365-Filtering-Correlation-Id: c1cfcdcb-d869-40d0-e140-08db29738503 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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X-Spam-Score: -0.2 (/) X-Spam-Report: Spam detection software, running on the system "bombadil.infradead.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: There are plenty of using kobject_del() and kobject_put() together in the kernel tree. This patch wraps these two calls in a single helper. Signed-off-by: Yangtao Li --- v2: -add kobject_del_and_put() users resend patchset to gregkh, Rafael and Damien include/linux/kobject.h | 1 + lib/kobject.c | 17 +++++++++++++++-- 2 [...] Content analysis details: (-0.2 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org There are plenty of using kobject_del() and kobject_put() together in the kernel tree. This patch wraps these two calls in a single helper. Signed-off-by: Yangtao Li --- v2: -add kobject_del_and_put() users resend patchset to gregkh, Rafael and Damien include/linux/kobject.h | 1 + lib/kobject.c | 17 +++++++++++++++-- 2 files changed, 16 insertions(+), 2 deletions(-) diff --git a/include/linux/kobject.h b/include/linux/kobject.h index bdab370a24f4..782d4bd119f8 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -111,6 +111,7 @@ extern struct kobject *kobject_get(struct kobject *kobj); extern struct kobject * __must_check kobject_get_unless_zero( struct kobject *kobj); extern void kobject_put(struct kobject *kobj); +extern void kobject_del_and_put(struct kobject *kobj); extern const void *kobject_namespace(const struct kobject *kobj); extern void kobject_get_ownership(const struct kobject *kobj, diff --git a/lib/kobject.c b/lib/kobject.c index 6e2f0bee3560..8c0293e37214 100644 --- a/lib/kobject.c +++ b/lib/kobject.c @@ -731,6 +731,20 @@ void kobject_put(struct kobject *kobj) } EXPORT_SYMBOL(kobject_put); +/** + * kobject_del_and_put() - Delete kobject. + * @kobj: object. + * + * Unlink kobject from hierarchy and decrement the refcount. + * If refcount is 0, call kobject_cleanup(). + */ +void kobject_del_and_put(struct kobject *kobj) +{ + kobject_del(kobj); + kobject_put(kobj); +} +EXPORT_SYMBOL_GPL(kobject_del_and_put); + static void dynamic_kobj_release(struct kobject *kobj) { pr_debug("kobject: (%p): %s\n", kobj, __func__); @@ -874,8 +888,7 @@ 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 Mon Mar 20 18:47:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yangtao Li X-Patchwork-Id: 1759203 X-Patchwork-Delegate: richard@nod.at Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2607:7c80:54:3::133; helo=bombadil.infradead.org; envelope-from=linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=) Authentication-Results: legolas.ozlabs.org; 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X-Spam-Score: -0.2 (/) X-Spam-Report: Spam detection software, running on the system "bombadil.infradead.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Use kobject_del_and_put() to simplify code. Cc: Greg Kroah-Hartman Cc: "Rafael J. Wysocki" Cc: Damien Le Moal Signed-off-by: Yangtao Li --- [...] Content analysis details: (-0.2 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org Use kobject_del_and_put() to simplify code. Cc: Greg Kroah-Hartman Cc: "Rafael J. Wysocki" Cc: Damien Le Moal Signed-off-by: Yangtao Li --- fs/ubifs/sysfs.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/fs/ubifs/sysfs.c b/fs/ubifs/sysfs.c index 1c958148bb87..9571718e61a9 100644 --- a/fs/ubifs/sysfs.c +++ b/fs/ubifs/sysfs.c @@ -130,8 +130,7 @@ int ubifs_sysfs_register(struct ubifs_info *c) void ubifs_sysfs_unregister(struct ubifs_info *c) { - kobject_del(&c->kobj); - kobject_put(&c->kobj); + kobject_del_and_put(&c->kobj); wait_for_completion(&c->kobj_unregister); kfree(c->stats);