From patchwork Tue Apr 19 11:47:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Yang Xu (Fujitsu)" X-Patchwork-Id: 12817787 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 463BDC433EF for ; Tue, 19 Apr 2022 10:50:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350820AbiDSKxU (ORCPT ); Tue, 19 Apr 2022 06:53:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56014 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350787AbiDSKxS (ORCPT ); Tue, 19 Apr 2022 06:53:18 -0400 Received: from mail1.bemta36.messagelabs.com (mail1.bemta36.messagelabs.com [85.158.142.113]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 53FEC1DA57; Tue, 19 Apr 2022 03:50:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fujitsu.com; s=170520fj; t=1650365434; i=@fujitsu.com; bh=KUoy2iJzDfdq/6qX+n+tPy7WXkIBqP/Z5evBH4xlq3s=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=AT9aGIGMrlK8j3YT8sBCHhuIuq3BBxBztbgg9uLgpz6aYou7skZoN2sviXtypDbIp iuPWQZ/oa4nGFNXih74LyowrhN+6xM4thKV5HaSWRAg/kzEo8QDXLSfxZHX7gVIoJh nMa0X6sb4dZF+s3o6B+Fg4+k4WflRRqHfCxtk09Cmm2MRmw7ZR7MyDV1nqUDyGRSK3 7KPxlyt91Ap2MiLeu6/9/0f9PzcjTtkDVEnamVDJYahQwwygUxy23FZud8lTbwyYCO Ext/aTQNCz5Z7X+whqQ7hnFX/vYpaCWM0IMv7uu0ahJMVVwVsVBQAg1trPWm0T9Daw 1JiynZzDAI9kg== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmpkleJIrShJLcpLzFFi42Kxs+GYovtzcly SwfZv1havD39itPhwcxKTxempZ5ksthy7x2hx+Qmfxc9lq9gtLi1yt9iz9ySLxYUDp1ktdv3Z wW6x8vFWJovzf4+zOvB4nFok4bFpVSebx4vNMxk9di/4zOTxeZOcx6Ynb5kC2KJYM/OS8isSW DN+7uxlK9jHWfHy1U3WBsYd7F2MXBxCAq8ZJfpv9LFAOHsYJZZfamDtYuTkYBPQlHjWuYAZxB YRUJZYcOMYG4jNLPCBSWLiwSoQW1ggWGLvjBdg9SwCqhIfvsxk7GLk4OAV8JA4dp4TJCwhoCA x5eF7sDGcAp4SG9++ZwGxhYBKrh/eAhbnFRCUODnzCQvEeAmJgy9eMEP0Kkpc6vjGCGFXSMya 1cY0gZF/FpKWWUhaFjAyrWK0SyrKTM8oyU3MzNE1NDDQNTQ01TUHUmZmeolVuol6qaW6yal5J UWJQGm9xPJivdTiYr3iytzknBS9vNSSTYzAmEkpdlu2g3Ff30+9Q4ySHExKorz1UXFJQnxJ+S mVGYnFGfFFpTmpxYcYZTg4lCR4SycA5QSLUtNTK9Iyc4DxC5OW4OBREuGd3A+U5i0uSMwtzky HSJ1iVJQS5xVrAUoIgCQySvPg2mAp4xKjrJQwLyMDA4MQT0FqUW5mCar8K0ZxDkYlYd6Nk4Cm 8GTmlcBNfwW0mAlocfWUWJDFJYkIKakGJhamGom9xs1Ne7JeT25ldZgp33ErXdWeWad4t9J1B dfXeqsnefxSYFmukhWYWfCjTm8HV9B1ieMf+lbW/XfZdCQr5zLPoy38jh/z35Y9yNreVlH4eJ ZKy++qP7Vcqpv3xvrcvNq2M/TUDW5ZNraDmxK72W4+2/OktzDlUwTzz0Mi1z4etIvav5sz8uv d+/M/qey9dby9pk/kZHfpX0dudteH7nKqUqznGteFCn25XnGhvUG08FljQ/PKdY5d2adO3Obw 5BE7rmbvyfJJMPbZhSMfdaP/+Qv13KkOnjTl/bn40uXbnye7ySdZV9y8bpktfmbL9UmOz9l4m VyKb+ltzpPInbLZdf1PnylnHq7jV2Ipzkg01GIuKk4EAPdP9QqUAwAA X-Env-Sender: xuyang2018.jy@fujitsu.com X-Msg-Ref: server-25.tower-545.messagelabs.com!1650365433!270749!1 X-Originating-IP: [62.60.8.148] X-SYMC-ESS-Client-Auth: outbound-route-from=pass X-StarScan-Received: X-StarScan-Version: 9.85.8; banners=-,-,- X-VirusChecked: Checked Received: (qmail 1555 invoked from network); 19 Apr 2022 10:50:33 -0000 Received: from unknown (HELO mailhost1.uk.fujitsu.com) (62.60.8.148) by server-25.tower-545.messagelabs.com with ECDHE-RSA-AES256-GCM-SHA384 encrypted SMTP; 19 Apr 2022 10:50:33 -0000 Received: from R01UKEXCASM126.r01.fujitsu.local ([10.183.43.178]) by mailhost1.uk.fujitsu.com (8.14.5/8.14.5) with ESMTP id 23JAoXvI005594 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Tue, 19 Apr 2022 11:50:33 +0100 Received: from localhost.localdomain (10.167.220.84) by R01UKEXCASM126.r01.fujitsu.local (10.183.43.178) with Microsoft SMTP Server (TLS) id 15.0.1497.32; Tue, 19 Apr 2022 11:50:28 +0100 From: Yang Xu To: CC: , , , , , , , , , , , Yang Xu Subject: [PATCH v4 8/8] ceph: Remove S_ISGID clear code in ceph_finish_async_create Date: Tue, 19 Apr 2022 19:47:14 +0800 Message-ID: <1650368834-2420-8-git-send-email-xuyang2018.jy@fujitsu.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1650368834-2420-1-git-send-email-xuyang2018.jy@fujitsu.com> References: <1650368834-2420-1-git-send-email-xuyang2018.jy@fujitsu.com> MIME-Version: 1.0 X-Originating-IP: [10.167.220.84] X-ClientProxiedBy: G08CNEXCHPEKD07.g08.fujitsu.local (10.167.33.80) To R01UKEXCASM126.r01.fujitsu.local (10.183.43.178) Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Since vfs has stripped S_ISGID in the previous patch, the calltrace as below: vfs: lookup_open ... if (open_flag & O_CREAT) { if (open_flag & O_EXCL) open_flag &= ~O_TRUNC; prepare_mode(mnt_userns, dir->d_inode, &mode); ... dir_inode->i_op->atomic_open ceph: ceph_atomic_open ... if (flags & O_CREAT) ceph_finish_async_create We have stripped sgid and umask in prepare mode, so remove this useless code here. Signed-off-by: Yang Xu --- fs/ceph/file.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/fs/ceph/file.c b/fs/ceph/file.c index 6c9e837aa1d3..8e3b99853333 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -651,10 +651,6 @@ static int ceph_finish_async_create(struct inode *dir, struct dentry *dentry, /* Directories always inherit the setgid bit. */ if (S_ISDIR(mode)) mode |= S_ISGID; - else if ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP) && - !in_group_p(dir->i_gid) && - !capable_wrt_inode_uidgid(&init_user_ns, dir, CAP_FSETID)) - mode &= ~S_ISGID; } else { in.gid = cpu_to_le32(from_kgid(&init_user_ns, current_fsgid())); }