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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham 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 5D9F3C072B1 for ; Tue, 28 May 2019 03:20:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3489820717 for ; Tue, 28 May 2019 03:20:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727974AbfE1DUc (ORCPT ); Mon, 27 May 2019 23:20:32 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:60692 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727342AbfE1DUb (ORCPT ); Mon, 27 May 2019 23:20:31 -0400 Received: from DGGEMS409-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id B5E2EF06512F3E944D5E; Tue, 28 May 2019 11:20:29 +0800 (CST) Received: from architecture4.huawei.com (10.140.130.215) by smtp.huawei.com (10.3.19.209) with Microsoft SMTP Server (TLS) id 14.3.439.0; Tue, 28 May 2019 11:20:23 +0800 From: Gao Xiang To: Chao Yu , Greg Kroah-Hartman , CC: LKML , , "Chao Yu" , Miao Xie , , Fang Wei , Gao Xiang Subject: [PATCH v3 1/2] staging: erofs: support statx Date: Tue, 28 May 2019 11:19:42 +0800 Message-ID: <20190528031943.239665-1-gaoxiang25@huawei.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190528023147.94117-2-gaoxiang25@huawei.com> References: <20190528023147.94117-2-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 statx() has already been supported in commit a528d35e8bfc ("statx: Add a system call to make enhanced file info available"), user programs can get more useful attributes. Signed-off-by: Gao Xiang --- change log v3: - update attributes_mask to indicate bits which erofs support as Chao pointed out; - already tested with samples/vfs/test-statx.c; Thanks, Gao Xiang drivers/staging/erofs/inode.c | 20 ++++++++++++++++++++ drivers/staging/erofs/internal.h | 2 ++ drivers/staging/erofs/namei.c | 1 + 3 files changed, 23 insertions(+) diff --git a/drivers/staging/erofs/inode.c b/drivers/staging/erofs/inode.c index c7d3b815a798..1c220900e1a0 100644 --- a/drivers/staging/erofs/inode.c +++ b/drivers/staging/erofs/inode.c @@ -285,7 +285,25 @@ struct inode *erofs_iget(struct super_block *sb, return inode; } +int erofs_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int query_flags) +{ + struct inode *const inode = d_inode(path->dentry); + struct erofs_vnode *const vi = EROFS_V(inode); + + if (vi->data_mapping_mode == EROFS_INODE_LAYOUT_COMPRESSION) + stat->attributes |= STATX_ATTR_COMPRESSED; + + stat->attributes |= STATX_ATTR_IMMUTABLE; + stat->attributes_mask |= (STATX_ATTR_COMPRESSED | + STATX_ATTR_IMMUTABLE); + + generic_fillattr(inode, stat); + return 0; +} + const struct inode_operations erofs_generic_iops = { + .getattr = erofs_getattr, #ifdef CONFIG_EROFS_FS_XATTR .listxattr = erofs_listxattr, #endif @@ -294,6 +312,7 @@ const struct inode_operations erofs_generic_iops = { const struct inode_operations erofs_symlink_iops = { .get_link = page_get_link, + .getattr = erofs_getattr, #ifdef CONFIG_EROFS_FS_XATTR .listxattr = erofs_listxattr, #endif @@ -302,6 +321,7 @@ const struct inode_operations erofs_symlink_iops = { const struct inode_operations erofs_fast_symlink_iops = { .get_link = simple_get_link, + .getattr = erofs_getattr, #ifdef CONFIG_EROFS_FS_XATTR .listxattr = erofs_listxattr, #endif diff --git a/drivers/staging/erofs/internal.h b/drivers/staging/erofs/internal.h index c47778b3fabd..911333cdeef4 100644 --- a/drivers/staging/erofs/internal.h +++ b/drivers/staging/erofs/internal.h @@ -556,6 +556,8 @@ static inline bool is_inode_fast_symlink(struct inode *inode) } struct inode *erofs_iget(struct super_block *sb, erofs_nid_t nid, bool dir); +int erofs_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int query_flags); /* namei.c */ extern const struct inode_operations erofs_dir_iops; diff --git a/drivers/staging/erofs/namei.c b/drivers/staging/erofs/namei.c index d8d9dc9dab43..fd3ae78d0ba5 100644 --- a/drivers/staging/erofs/namei.c +++ b/drivers/staging/erofs/namei.c @@ -247,6 +247,7 @@ static struct dentry *erofs_lookup(struct inode *dir, const struct inode_operations erofs_dir_iops = { .lookup = erofs_lookup, + .getattr = erofs_getattr, #ifdef CONFIG_EROFS_FS_XATTR .listxattr = erofs_listxattr, #endif -- 2.17.1