From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7C25EC433FF for ; Fri, 2 Aug 2019 12:54:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 57B972064A for ; Fri, 2 Aug 2019 12:54:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2392669AbfHBMya (ORCPT ); Fri, 2 Aug 2019 08:54:30 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:3709 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2389526AbfHBMy0 (ORCPT ); Fri, 2 Aug 2019 08:54:26 -0400 Received: from DGGEMS403-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id A9AACE570F47F5F04040; Fri, 2 Aug 2019 20:54:22 +0800 (CST) Received: from architecture4.huawei.com (10.140.130.215) by smtp.huawei.com (10.3.19.203) with Microsoft SMTP Server (TLS) id 14.3.439.0; Fri, 2 Aug 2019 20:54:14 +0800 From: Gao Xiang To: Alexander Viro , Greg Kroah-Hartman , Andrew Morton , Stephen Rothwell , Theodore Ts'o , "Pavel Machek" , David Sterba , Amir Goldstein , Christoph Hellwig , "Darrick J . Wong" , Dave Chinner , "Jaegeuk Kim" , Jan Kara , Linus Torvalds CC: , , LKML , , Chao Yu , Miao Xie , Li Guifu , Fang Wei , Gao Xiang Subject: [PATCH v6 06/24] erofs: support special inode Date: Fri, 2 Aug 2019 20:53:29 +0800 Message-ID: <20190802125347.166018-7-gaoxiang25@huawei.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190802125347.166018-1-gaoxiang25@huawei.com> References: <20190802125347.166018-1-gaoxiang25@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.140.130.215] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds to support special inode, such as block dev, char, socket, pipe inode. Signed-off-by: Gao Xiang --- fs/erofs/inode.c | 27 +++++++++++++++++++++++++-- 1 file changed, 25 insertions(+), 2 deletions(-) diff --git a/fs/erofs/inode.c b/fs/erofs/inode.c index b6ea997bc4ae..637bf6e4de44 100644 --- a/fs/erofs/inode.c +++ b/fs/erofs/inode.c @@ -34,7 +34,16 @@ static int read_inode(struct inode *inode, void *data) vi->xattr_isize = ondisk_xattr_ibody_size(v2->i_xattr_icount); inode->i_mode = le16_to_cpu(v2->i_mode); - vi->raw_blkaddr = le32_to_cpu(v2->i_u.raw_blkaddr); + if (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || + S_ISLNK(inode->i_mode)) + vi->raw_blkaddr = le32_to_cpu(v2->i_u.raw_blkaddr); + else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) + inode->i_rdev = + new_decode_dev(le32_to_cpu(v2->i_u.rdev)); + else if (S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) + inode->i_rdev = 0; + else + return -EIO; i_uid_write(inode, le32_to_cpu(v2->i_uid)); i_gid_write(inode, le32_to_cpu(v2->i_gid)); @@ -58,7 +67,16 @@ static int read_inode(struct inode *inode, void *data) vi->xattr_isize = ondisk_xattr_ibody_size(v1->i_xattr_icount); inode->i_mode = le16_to_cpu(v1->i_mode); - vi->raw_blkaddr = le32_to_cpu(v1->i_u.raw_blkaddr); + if (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || + S_ISLNK(inode->i_mode)) + vi->raw_blkaddr = le32_to_cpu(v1->i_u.raw_blkaddr); + else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) + inode->i_rdev = + new_decode_dev(le32_to_cpu(v1->i_u.rdev)); + else if (S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) + inode->i_rdev = 0; + else + return -EIO; i_uid_write(inode, le16_to_cpu(v1->i_uid)); i_gid_write(inode, le16_to_cpu(v1->i_gid)); @@ -176,6 +194,11 @@ static int fill_inode(struct inode *inode, int isdir) /* by default, page_get_link is used for symlink */ inode->i_op = &erofs_symlink_iops; inode_nohighmem(inode); + } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || + S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { + inode->i_op = &erofs_generic_iops; + init_special_inode(inode, inode->i_mode, inode->i_rdev); + goto out_unlock; } else { err = -EIO; goto out_unlock; -- 2.17.1