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Thu, 01 Feb 2024 14:38:29 +0800 (CST) From: linan666@huaweicloud.com To: song@kernel.org, neilb@suse.com, mariusz.tkaczyk@linux.intel.com, shli@fb.com Cc: linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org, linan666@huaweicloud.com, yukuai3@huawei.com, yi.zhang@huawei.com, houtao1@huawei.com, yangerkun@huawei.com Subject: [PATCH v5 4/8] md: return directly before setting did_set_md_closing Date: Thu, 1 Feb 2024 14:34:00 +0800 Message-Id: <20240201063404.772797-5-linan666@huaweicloud.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240201063404.772797-1-linan666@huaweicloud.com> References: <20240201063404.772797-1-linan666@huaweicloud.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:cCh0CgAX5g5iPLtllCl+Cg--.15155S8 X-Coremail-Antispam: 1UD129KBjvJXoW7tFWfXw4UKry7uw15CF48JFb_yoW8Zr4xpF ZagF9xtrWrJFWUKr1DJa4DZFyYqw13KFWvkryxCryjvF9FyrsxZryFg3yFqry0g34kA3y5 tF12qa15Wa4xJFUanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUQY14x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_JF0E3s1l82xGYI kIc2x26xkF7I0E14v26ryj6s0DM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2 z4x0Y4vE2Ix0cI8IcVAFwI0_Ar0_tr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F 4UJwA2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxVW0oVCq 3wAac4AC62xK8xCEY4vEwIxC4wAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0V AKzVAqx4xG6I80ewAv7VC0I7IYx2IY67AKxVWUGVWUXwAv7VC2z280aVAFwI0_Jr0_Gr1l Ox8S6xCaFVCjc4AY6r1j6r4UM4x0Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErc IFxwACI402YVCY1x02628vn2kIc2xKxwAKzVCY07xG64k0F24l42xK82IYc2Ij64vIr41l 4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67 AKxVWUGVWUWwC2zVAF1VAY17CE14v26r1q6r43MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8I cVAFwI0_JFI_Gr1lIxAIcVC0I7IYx2IY6xkF7I0E14v26F4j6r4UJwCI42IY6xAIw20EY4 v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267AK xVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7VUbMKZtUUUUU== X-CM-SenderInfo: polqt0awwwqx5xdzvxpfor3voofrz/ From: Li Nan There is nothing to do at 'out' before setting 'did_set_md_closing' in md_ioctl(). Return directly, and it will help us to remove 'did_set_md_closing' later. Signed-off-by: Li Nan --- drivers/md/md.c | 23 ++++++++--------------- 1 file changed, 8 insertions(+), 15 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index 656080086052..5442e8e3c161 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -7636,10 +7636,8 @@ static int md_ioctl(struct block_device *bdev, blk_mode_t mode, * Commands dealing with the RAID driver but not any * particular array: */ - if (cmd == RAID_VERSION) { - err = get_version(argp); - goto out; - } + if (cmd == RAID_VERSION) + return get_version(argp); /* * Commands creating/starting a new array: @@ -7654,23 +7652,20 @@ static int md_ioctl(struct block_device *bdev, blk_mode_t mode, err = -ENODEV; else err = get_array_info(mddev, argp); - goto out; + return err; case GET_DISK_INFO: if (!mddev->raid_disks && !mddev->external) err = -ENODEV; else err = get_disk_info(mddev, argp); - goto out; + return err; case SET_DISK_FAULTY: - err = set_disk_faulty(mddev, new_decode_dev(arg)); - goto out; + return set_disk_faulty(mddev, new_decode_dev(arg)); case GET_BITMAP_FILE: - err = get_bitmap_file(mddev, argp); - goto out; - + return get_bitmap_file(mddev, argp); } if (cmd == HOT_REMOVE_DISK) @@ -7686,13 +7681,11 @@ static int md_ioctl(struct block_device *bdev, blk_mode_t mode, mutex_lock(&mddev->open_mutex); if (mddev->pers && atomic_read(&mddev->openers) > 1) { mutex_unlock(&mddev->open_mutex); - err = -EBUSY; - goto out; + return -EBUSY; } if (test_and_set_bit(MD_CLOSING, &mddev->flags)) { mutex_unlock(&mddev->open_mutex); - err = -EBUSY; - goto out; + return -EBUSY; } did_set_md_closing = true; mutex_unlock(&mddev->open_mutex); -- 2.39.2