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=-17.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 50AA0C6377D for ; Thu, 22 Jul 2021 15:31:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 25FA06128D for ; Thu, 22 Jul 2021 15:31:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232596AbhGVOvE (ORCPT ); Thu, 22 Jul 2021 10:51:04 -0400 Received: from mail.kernel.org ([198.145.29.99]:37000 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232217AbhGVOvE (ORCPT ); Thu, 22 Jul 2021 10:51:04 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 7D88561279; Thu, 22 Jul 2021 15:31:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626967899; bh=aJKrrWsmykOMnFps4UmPZX2SQzn85SNT0bFaWCjEcR8=; h=Subject:To:Cc:From:Date:From; b=K0fqBa6lLfEmKEA7ZKDcf5RpvA1aqvvdW3sA8fyy4SyIakuHbhWwG2YAdcMyUSWTC 84JNPTzVC/4VYUs9o+3gf/eL3D0VJ6fmkNH6utRvAZslFSZDmDjn596Gcw0Mw8UHQo XLKxiaZhYmWz+vg+Qb2ELsGAyOAjX6H6QXd4rtP8= Subject: FAILED: patch "[PATCH] vboxsf: Honor excl flag to the dir-inode create op" failed to apply to 5.10-stable tree To: hdegoede@redhat.com Cc: From: Date: Thu, 22 Jul 2021 17:31:36 +0200 Message-ID: <1626967896238138@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From cc3ddee97cff034cea4d095de4a484c92a219bf5 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Thu, 21 Jan 2021 10:08:59 +0100 Subject: [PATCH] vboxsf: Honor excl flag to the dir-inode create op Honor the excl flag to the dir-inode create op, instead of behaving as if it is always set. Note the old behavior still worked most of the time since a non-exclusive open only calls the create op, if there is a race and the file is created between the dentry lookup and the calling of the create call. While at it change the type of the is_dir parameter to the vboxsf_dir_create() helper from an int to a bool, to be consistent with the use of bool for the excl parameter. Fixes: 0fd169576648 ("fs: Add VirtualBox guest shared folder (vboxsf) support") Signed-off-by: Hans de Goede diff --git a/fs/vboxsf/dir.c b/fs/vboxsf/dir.c index eac6788fc6cf..6ff84343edca 100644 --- a/fs/vboxsf/dir.c +++ b/fs/vboxsf/dir.c @@ -253,7 +253,7 @@ static int vboxsf_dir_instantiate(struct inode *parent, struct dentry *dentry, } static int vboxsf_dir_create(struct inode *parent, struct dentry *dentry, - umode_t mode, int is_dir) + umode_t mode, bool is_dir, bool excl) { struct vboxsf_inode *sf_parent_i = VBOXSF_I(parent); struct vboxsf_sbi *sbi = VBOXSF_SBI(parent->i_sb); @@ -261,10 +261,12 @@ static int vboxsf_dir_create(struct inode *parent, struct dentry *dentry, int err; params.handle = SHFL_HANDLE_NIL; - params.create_flags = SHFL_CF_ACT_CREATE_IF_NEW | - SHFL_CF_ACT_FAIL_IF_EXISTS | - SHFL_CF_ACCESS_READWRITE | - (is_dir ? SHFL_CF_DIRECTORY : 0); + params.create_flags = SHFL_CF_ACT_CREATE_IF_NEW | SHFL_CF_ACCESS_READWRITE; + if (is_dir) + params.create_flags |= SHFL_CF_DIRECTORY; + if (excl) + params.create_flags |= SHFL_CF_ACT_FAIL_IF_EXISTS; + params.info.attr.mode = (mode & 0777) | (is_dir ? SHFL_TYPE_DIRECTORY : SHFL_TYPE_FILE); params.info.attr.additional = SHFLFSOBJATTRADD_NOTHING; @@ -292,14 +294,14 @@ static int vboxsf_dir_mkfile(struct user_namespace *mnt_userns, struct inode *parent, struct dentry *dentry, umode_t mode, bool excl) { - return vboxsf_dir_create(parent, dentry, mode, 0); + return vboxsf_dir_create(parent, dentry, mode, false, excl); } static int vboxsf_dir_mkdir(struct user_namespace *mnt_userns, struct inode *parent, struct dentry *dentry, umode_t mode) { - return vboxsf_dir_create(parent, dentry, mode, 1); + return vboxsf_dir_create(parent, dentry, mode, true, true); } static int vboxsf_dir_unlink(struct inode *parent, struct dentry *dentry)