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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-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: vivo.com X-MS-Exchange-CrossTenant-Network-Message-Id: c1cfcdcb-d869-40d0-e140-08db29738503 X-MS-Exchange-CrossTenant-AuthSource: SEZPR06MB5269.apcprd06.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Mar 2023 18:47:13.4689 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 923e42dc-48d5-4cbe-b582-1a797a6412ed X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: Iw6yhFRY3fWfQtJR37Yy4Na+2pS2YzTcSx5S8aPN2N/1coERwHo0/5nreieXryTa6Gq4S5UQkEgstX8i7GVXlw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SI2PR06MB4121 X-Spam-Status: No, score=-0.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2,RCVD_IN_VALIDITY_RPBL,SPF_HELO_PASS,SPF_PASS autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1760915740997132163?= X-GMAIL-MSGID: =?utf-8?q?1760915740997132163?= 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);