From patchwork Wed Apr 10 07:37:48 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhihao Cheng X-Patchwork-Id: 1921834 X-Patchwork-Delegate: richard@nod.at Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=CW4dncXd; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2607:7c80:54:3::133; helo=bombadil.infradead.org; envelope-from=linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=patchwork.ozlabs.org) Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4VDvzg2C6tz1yYd for ; Wed, 10 Apr 2024 17:46:55 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=cAVcVRZK5KHwQL9Guiy7IOemMCoRAYm9gf2vXT9qoiI=; b=CW4dncXdvGh7GZ FrgIEgS5ZMtwOPY+uhIa3h+aOM6Socj/DQtSIyWTjZ8AT10q5s1Wz+SshwfZ92IRR7d3lkVLEbPos LelDHa0IUlBohreGG06jGyu3it/mzcZAEDyXM7c5w+PKkU8aRkj3dq5gHrAO00fm2cTmHhxQ80A9b 70ToqfJaTvakHhr3r9HCl7F5+Dlo+YQUq2P5Egrb21xTZLZF9XeJxLmV5RqTL2813ZtA5LCxpme/Y 6BY83NezMOChAvGtW76lJYW7YQffRsLFUhRH6S9jr4+r8b8knnPiff83CZpWXIlKJ+Uu6iPx5nchU OgN63/Zd4JjNXQWR4eYQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1ruSfG-00000005gIw-1FsR; Wed, 10 Apr 2024 07:46:38 +0000 Received: from szxga04-in.huawei.com ([45.249.212.190]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1ruSf9-00000005gBv-1W6h for linux-mtd@lists.infradead.org; Wed, 10 Apr 2024 07:46:33 +0000 Received: from mail.maildlp.com (unknown [172.19.88.163]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4VDvvm6Jn4z29lMv; Wed, 10 Apr 2024 15:43:32 +0800 (CST) Received: from kwepemm600013.china.huawei.com (unknown [7.193.23.68]) by mail.maildlp.com (Postfix) with ESMTPS id A876218001A; Wed, 10 Apr 2024 15:46:24 +0800 (CST) Received: from huawei.com (10.175.104.67) by kwepemm600013.china.huawei.com (7.193.23.68) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Wed, 10 Apr 2024 15:46:21 +0800 From: Zhihao Cheng To: CC: , , Subject: [PATCH 6/9] ubifs: Move ui->data initialization after initializing security Date: Wed, 10 Apr 2024 15:37:48 +0800 Message-ID: <20240410073751.2522830-7-chengzhihao1@huawei.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240410073751.2522830-1-chengzhihao1@huawei.com> References: <20240410073751.2522830-1-chengzhihao1@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.104.67] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To kwepemm600013.china.huawei.com (7.193.23.68) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240410_004631_728968_BBAE0FD5 X-CRM114-Status: UNSURE ( 9.91 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.3 (--) X-Spam-Report: Spam detection software, running on the system "bombadil.infradead.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Host inode and its' xattr will be written on disk after initializing security when creating symlink or dev, then the host inode and its dentry will be written again in ubifs_jnl_update. There is no ne [...] Content analysis details: (-2.3 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 RCVD_IN_MSPIKE_H4 RBL: Very Good reputation (+4) [45.249.212.190 listed in wl.mailspike.net] -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [45.249.212.190 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.0 RCVD_IN_MSPIKE_WL Mailspike good senders X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org Host inode and its' xattr will be written on disk after initializing security when creating symlink or dev, then the host inode and its dentry will be written again in ubifs_jnl_update. There is no need to write inode data in the security initialization pass, just move the ui->data initialization after initializing security. Signed-off-by: Zhihao Cheng --- fs/ubifs/dir.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c index 551148de66cd..848988f2b7dc 100644 --- a/fs/ubifs/dir.c +++ b/fs/ubifs/dir.c @@ -1102,16 +1102,18 @@ static int ubifs_mknod(struct mnt_idmap *idmap, struct inode *dir, goto out_fname; } + err = ubifs_init_security(dir, inode, &dentry->d_name); + if (err) { + kfree(dev); + goto out_inode; + } + init_special_inode(inode, inode->i_mode, rdev); inode->i_size = ubifs_inode(inode)->ui_size = devlen; ui = ubifs_inode(inode); ui->data = dev; ui->data_len = devlen; - err = ubifs_init_security(dir, inode, &dentry->d_name); - if (err) - goto out_inode; - mutex_lock(&dir_ui->ui_mutex); dir->i_size += sz_change; dir_ui->ui_size = dir->i_size; @@ -1184,6 +1186,10 @@ static int ubifs_symlink(struct mnt_idmap *idmap, struct inode *dir, goto out_fname; } + err = ubifs_init_security(dir, inode, &dentry->d_name); + if (err) + goto out_inode; + ui = ubifs_inode(inode); ui->data = kmalloc(disk_link.len, GFP_NOFS); if (!ui->data) { @@ -1209,10 +1215,6 @@ static int ubifs_symlink(struct mnt_idmap *idmap, struct inode *dir, ui->data_len = disk_link.len - 1; inode->i_size = ubifs_inode(inode)->ui_size = disk_link.len - 1; - err = ubifs_init_security(dir, inode, &dentry->d_name); - if (err) - goto out_inode; - mutex_lock(&dir_ui->ui_mutex); dir->i_size += sz_change; dir_ui->ui_size = dir->i_size;