From patchwork Thu Feb 22 12:45:44 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Kuai X-Patchwork-Id: 13567269 Received: from dggsgout11.his.huawei.com (dggsgout11.his.huawei.com [45.249.212.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CDBF3131722; Thu, 22 Feb 2024 12:51:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.51 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708606304; cv=none; b=CJu+qk2tpCn0sOQQg/mjxbEIGnwz2dH900mhYTtobAdzKcyivvQReCqqTVOCSB51zbRaFWH6uz4jGlGJkmOGrQTniJV7EhrZcGGPFiIqjgHHMCLOeYPf24k3i6LjzGnIRluUyNttSqArhWhvWAiJJVx0bE5x9003FTI1ygIsnEI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708606304; c=relaxed/simple; bh=WSHwFEtjJ7bm0b6m77A5y0OPzqIykv+swdfnbLvtp2k=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=eyjM7a1I+MGFlJKqnhSFsCrQFsaQQmHbkQjgqfR6nhmlUalFYXt8pjtZMyD+0/P0hSmN4PHsra555X68Wvkr9kIxsLlYGvtDqadDXryEDqA1HZjdWO16k4E0z4nJ+L4yr1SEPbgWG9LdmalYy2KGoYlAtKXQU9bhzSbyP7XzJAQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com; spf=pass smtp.mailfrom=huaweicloud.com; arc=none smtp.client-ip=45.249.212.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huaweicloud.com Received: from mail.maildlp.com (unknown [172.19.163.235]) by dggsgout11.his.huawei.com (SkyGuard) with ESMTP id 4TgY1D6nm5z4f3m7Z; Thu, 22 Feb 2024 20:51:28 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.112]) by mail.maildlp.com (Postfix) with ESMTP id 1DDFA1A0568; Thu, 22 Feb 2024 20:51:36 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.104.67]) by APP1 (Coremail) with SMTP id cCh0CgBHGBFSQ9dlQ382Ew--.47909S12; Thu, 22 Feb 2024 20:51:35 +0800 (CST) From: Yu Kuai To: jack@suse.cz, hch@lst.de, brauner@kernel.org, axboe@kernel.dk Cc: linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org, yukuai3@huawei.com, yukuai1@huaweicloud.com, yi.zhang@huawei.com, yangerkun@huawei.com Subject: [RFC v4 linux-next 08/19] nilfs2: prevent direct access of bd_inode Date: Thu, 22 Feb 2024 20:45:44 +0800 Message-Id: <20240222124555.2049140-9-yukuai1@huaweicloud.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240222124555.2049140-1-yukuai1@huaweicloud.com> References: <20240222124555.2049140-1-yukuai1@huaweicloud.com> Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: cCh0CgBHGBFSQ9dlQ382Ew--.47909S12 X-Coremail-Antispam: 1UD129KBjvdXoW7XFW8Cry3Kw4kGF1ruF47XFb_yoW3AFbEqr 95GrykX3yYqFWfua1DurWYyryrJ3WFk3WrXryrGFyUKF40y395ur1DXr4UAayUury7X3Zx Jw1DXrn8Jw1UWjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbq8FF20E14v26rWj6s0DM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI8067AKxVWUAVCq3wA2048vs2 IY020Ec7CjxVAFwI0_Xr0E3s1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxSw2x7M28E F7xvwVC0I7IYx2IY67AKxVW5JVW7JwA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxVW8Jr0_Cr 1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I0E14v26rxl6s0D M2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjx v20xvE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr1l F7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7M4IIrI8v6xkF7I0E8cxan2 IY04v7MxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAF wI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUtVW8ZwCIc4 0Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1I6r4UMIIF0xvE2Ix0cI8IcVCY1x0267AK xVWxJVW8Jr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r4j6F 4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr1j6F4UJbIYCTnIWIevJa73UjIFyTuYvjfUOBTY UUUUU X-CM-SenderInfo: 51xn3trlr6x35dzhxuhorxvhhfrp/ From: Yu Kuai Now that all filesystems stash the bdev file, it's ok to get inode from the file. Signed-off-by: Yu Kuai Reviewed-by: Jan Kara Reviewed-by: Christoph Hellwig --- fs/nilfs2/segment.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c index aa5290cb7467..2940e8ef88f4 100644 --- a/fs/nilfs2/segment.c +++ b/fs/nilfs2/segment.c @@ -2790,7 +2790,7 @@ int nilfs_attach_log_writer(struct super_block *sb, struct nilfs_root *root) if (!nilfs->ns_writer) return -ENOMEM; - inode_attach_wb(nilfs->ns_bdev->bd_inode, NULL); + inode_attach_wb(file_inode(nilfs->ns_sb->s_bdev_file), NULL); err = nilfs_segctor_start_thread(nilfs->ns_writer); if (unlikely(err))