From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from dggsgout11.his.huawei.com (unknown [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 E2E8922EED; Sat, 6 Apr 2024 09:17:47 +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=1712395069; cv=none; b=LnAu2Vl2gHboOt7IVsbhQx4zo7bL/330VF2rfKNrnsqsoZO3+N3YzX1dPsUWWMBHn5k91ZGrF0sQ6EJjy0xWbFGp+hGQ6gfAW3tC1/ELlfbJA0lGjn071Jftd6/RNaoEd8truxrHQeTdfST6WdOS6I69u++pK0hOhiYIForSiF8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712395069; c=relaxed/simple; bh=VeY/gOgLFypQc0FglGRPZyMAihZTyTp1W5didLMJ+bk=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=J4/GoovWe3uGX7zmI8yeK26QueDVrAIKu2nTr/ptK7FBS73kWhN2isNfn9BKSSV/zP3Wx/Za9Yg187pFDP29xM9XgKL8WtxBAH6R6zhKKrvYGBz0f2KuoB/y8mXr+b0i3r5U8wUVUURt8+vNCs7OA4ZPnlWGicPo42o9+Bgp1jI= 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 4VBVB84Kd1z4f3lfY; Sat, 6 Apr 2024 17:17:36 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.112]) by mail.maildlp.com (Postfix) with ESMTP id 1ACCB1A0572; Sat, 6 Apr 2024 17:17:45 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.104.67]) by APP1 (Coremail) with SMTP id cCh0CgAn+REyExFm0JDpJA--.50223S11; Sat, 06 Apr 2024 17:17:44 +0800 (CST) From: Yu Kuai To: jack@suse.cz, hch@lst.de, brauner@kernel.org, viro@zeniv.linux.org.uk, axboe@kernel.dk Cc: linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org, yi.zhang@huawei.com, yangerkun@huawei.com, yukuai3@huawei.com Subject: [PATCH vfs.all 07/26] cramfs: prevent direct access of bd_inode Date: Sat, 6 Apr 2024 17:09:11 +0800 Message-Id: <20240406090930.2252838-8-yukuai1@huaweicloud.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240406090930.2252838-1-yukuai1@huaweicloud.com> References: <20240406090930.2252838-1-yukuai1@huaweicloud.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:cCh0CgAn+REyExFm0JDpJA--.50223S11 X-Coremail-Antispam: 1UD129KBjvdXoW7XFW8CrWUWr45tr1xWry7trb_yoWfArX_Aa 40kr1rWw1fXwn3uws8Wwn8Zr409w45Krs7uFZxKr9xJryrJF93Crs7Xr18Wr4DJr4UXFZ8 GFn7XF48Jr9F9jkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbSkYFVCjjxCrM7AC8VAFwI0_Wr0E3s1l1xkIjI8I6I8E6xAIw20E Y4v20xvaj40_Wr0E3s1l1IIY67AEw4v_Jr0_Jr4l82xGYIkIc2x26280x7IE14v26r126s 0DM28IrcIa0xkI8VCY1x0267AKxVW5JVCq3wA2ocxC64kIII0Yj41l84x0c7CEw4AK67xG Y2AK021l84ACjcxK6xIIjxv20xvE14v26F1j6w1UM28EF7xvwVC0I7IYx2IY6xkF7I0E14 v26r4UJVWxJr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxVAF wI0_GcCE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2 WlYx0E2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkE bVWUJVW8JwACjcxG0xvY0x0EwIxGrwACI402YVCY1x02628vn2kIc2xKxwCF04k20xvY0x 0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E 7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jw0_GFylIxkGc2Ij64vIr41lIxAIcV C0I7IYx2IY67AKxVWUCVW8JwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Cr0_Gr1UMIIF0xvE 42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVW8JVWxJwCI42IY6I8E87Iv6x kF7I0E14v26r4UJVWxJrUvcSsGvfC2KfnxnUUI43ZEXa7IU13l1DUUUUU== X-CM-SenderInfo: 51xn3trlr6x35dzhxuhorxvhhfrp/ From: Yu Kuai Now that all filesystems stash the bdev file, it's ok to get bdev mapping from the file directly. Signed-off-by: Yu Kuai Reviewed-by: Christoph Hellwig Reviewed-by: Jan Kara --- fs/cramfs/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c index 9901057a15ba..38416c245ced 100644 --- a/fs/cramfs/inode.c +++ b/fs/cramfs/inode.c @@ -183,7 +183,7 @@ static int next_buffer; static void *cramfs_blkdev_read(struct super_block *sb, unsigned int offset, unsigned int len) { - struct address_space *mapping = sb->s_bdev->bd_inode->i_mapping; + struct address_space *mapping = sb->s_bdev_file->f_mapping; struct file_ra_state ra = {}; struct page *pages[BLKS_PER_BUF]; unsigned i, blocknr, buffer; -- 2.39.2