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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);