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=-19.3 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, 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 8B624C433DB for ; Wed, 3 Feb 2021 12:49:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 41A0D64DE7 for ; Wed, 3 Feb 2021 12:49:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231318AbhBCMtW (ORCPT ); Wed, 3 Feb 2021 07:49:22 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:50673 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231272AbhBCMnX (ORCPT ); Wed, 3 Feb 2021 07:43:23 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1612356115; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=nqnHuTDlhnF+gYa6ACau/xbRllmODRsNtHRALQ2cj0c=; b=GnRgYTm02QwbD+nDXfSzUx38x92OL15b9NF1nK3+r2WJsnANgLFlnjMR0nu19WKaTV39Qp NT+pByXM1yDOv36JNEQvr/i5j9QHFWiCJEN7/xdy53PZ9oJHptKF1EfnXDQOis+fdedQ1B /OqIuCBXMfERFRyzjYTMM6ecfruyV3Y= Received: from mail-ej1-f69.google.com (mail-ej1-f69.google.com [209.85.218.69]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-261-MDG7U3tPMl6CrAhjNMPAbQ-1; Wed, 03 Feb 2021 07:41:54 -0500 X-MC-Unique: MDG7U3tPMl6CrAhjNMPAbQ-1 Received: by mail-ej1-f69.google.com with SMTP id dc21so11927395ejb.19 for ; Wed, 03 Feb 2021 04:41:53 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=nqnHuTDlhnF+gYa6ACau/xbRllmODRsNtHRALQ2cj0c=; b=maWioKdHNYA10zP7c5J4d6OCLG5C2d/D2w4O0caBJB85cGlquTUfiJBe+wFHKUaD1/ uBYiQ83H8IGIWCfR62+/gwjiA9ENV7JBCVxVQc2HFb9CaJoLlV/ZdT+bSKKh/z6zlcNy 8WuIBBgDI9lVla04e6gV++EUl3H7YyX7Ddg0hRNxbiwASj0Hft30e/GOPgcWw5FGbz0Q 1zGv6tWEZCTlmTD2Osgo2WYIcba7G1XbqyuH72jsVOTHSvbOM78sl4S8z6euj7LCKuXj 2/vFit5STWL2q/+x4a8FGY0hIxHhs5N3rlooNzmLBIPFWEbdjL8nOWprDh0NhPkS7EQI mpVg== X-Gm-Message-State: AOAM533QpCsUNSgscfBqrKOSChUSC9Hc8JB9prKWciHHiyIaFtLZyopN q1ETLRWL9Da8pMgPx3XtuTE9TAN/d4w3SR5WbhRo2zrSpQ2t+vCSDevgY+AO0JaEQGYukMqUlBJ Sdjqm5XhLiH/iADpwpcYRkVQH X-Received: by 2002:a50:ed97:: with SMTP id h23mr2626294edr.278.1612356112607; Wed, 03 Feb 2021 04:41:52 -0800 (PST) X-Google-Smtp-Source: ABdhPJwSwFtClNmUsvW3coEeu6yObspJkncW5Brh+PiFq6DIqTdKrbHPO9g5cKL0+2OaWluUe7mSyw== X-Received: by 2002:a50:ed97:: with SMTP id h23mr2626284edr.278.1612356112400; Wed, 03 Feb 2021 04:41:52 -0800 (PST) Received: from miu.piliscsaba.redhat.com (catv-86-101-169-67.catv.broadband.hu. [86.101.169.67]) by smtp.gmail.com with ESMTPSA id u9sm953320ejc.57.2021.02.03.04.41.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Feb 2021 04:41:51 -0800 (PST) From: Miklos Szeredi To: linux-fsdevel@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Jan Kara Subject: [PATCH 16/18] reiserfs: convert to miscattr Date: Wed, 3 Feb 2021 13:41:10 +0100 Message-Id: <20210203124112.1182614-17-mszeredi@redhat.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210203124112.1182614-1-mszeredi@redhat.com> References: <20210203124112.1182614-1-mszeredi@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use the miscattr API to let the VFS handle locking, permission checking and conversion. Signed-off-by: Miklos Szeredi Cc: Jan Kara --- fs/reiserfs/file.c | 2 + fs/reiserfs/ioctl.c | 120 +++++++++++++++++++---------------------- fs/reiserfs/namei.c | 2 + fs/reiserfs/reiserfs.h | 6 +-- fs/reiserfs/super.c | 2 +- 5 files changed, 62 insertions(+), 70 deletions(-) diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c index 0b641ae694f1..be86ddf898a9 100644 --- a/fs/reiserfs/file.c +++ b/fs/reiserfs/file.c @@ -258,4 +258,6 @@ const struct inode_operations reiserfs_file_inode_operations = { .permission = reiserfs_permission, .get_acl = reiserfs_get_acl, .set_acl = reiserfs_set_acl, + .miscattr_get = reiserfs_miscattr_get, + .miscattr_set = reiserfs_miscattr_set, }; diff --git a/fs/reiserfs/ioctl.c b/fs/reiserfs/ioctl.c index adb21bea3d60..68f4cae19c59 100644 --- a/fs/reiserfs/ioctl.c +++ b/fs/reiserfs/ioctl.c @@ -10,6 +10,58 @@ #include #include #include +#include + +int reiserfs_miscattr_get(struct dentry *dentry, struct miscattr *ma) +{ + struct inode *inode = d_inode(dentry); + + if (!reiserfs_attrs(inode->i_sb)) + return -ENOTTY; + + miscattr_fill_flags(ma, REISERFS_I(inode)->i_attrs); + + return 0; +} + +int reiserfs_miscattr_set(struct dentry *dentry, struct miscattr *ma) +{ + struct inode *inode = d_inode(dentry); + unsigned int flags = ma->flags; + int err; + + reiserfs_write_lock(inode->i_sb); + + err = -ENOTTY; + if (!reiserfs_attrs(inode->i_sb)) + goto unlock; + + err = -EOPNOTSUPP; + if (miscattr_has_xattr(ma)) + goto unlock; + + /* + * Is it quota file? Do not allow user to mess with it + */ + err = -EPERM; + if (IS_NOQUOTA(inode)) + goto unlock; + + if ((flags & REISERFS_NOTAIL_FL) && S_ISREG(inode->i_mode)) { + err = reiserfs_unpack(inode); + if (err) + goto unlock; + } + sd_attrs_to_i_attrs(flags, inode); + REISERFS_I(inode)->i_attrs = flags; + inode->i_ctime = current_time(inode); + mark_inode_dirty(inode); + err = 0; +unlock: + reiserfs_write_unlock(inode->i_sb); + + return err; +} /* * reiserfs_ioctl - handler for ioctl for inode @@ -23,7 +75,6 @@ long reiserfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { struct inode *inode = file_inode(filp); - unsigned int flags; int err = 0; reiserfs_write_lock(inode->i_sb); @@ -32,7 +83,7 @@ long reiserfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) case REISERFS_IOC_UNPACK: if (S_ISREG(inode->i_mode)) { if (arg) - err = reiserfs_unpack(inode, filp); + err = reiserfs_unpack(inode); } else err = -ENOTTY; break; @@ -40,63 +91,6 @@ long reiserfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) * following two cases are taken from fs/ext2/ioctl.c by Remy * Card (card@masi.ibp.fr) */ - case REISERFS_IOC_GETFLAGS: - if (!reiserfs_attrs(inode->i_sb)) { - err = -ENOTTY; - break; - } - - flags = REISERFS_I(inode)->i_attrs; - err = put_user(flags, (int __user *)arg); - break; - case REISERFS_IOC_SETFLAGS:{ - if (!reiserfs_attrs(inode->i_sb)) { - err = -ENOTTY; - break; - } - - err = mnt_want_write_file(filp); - if (err) - break; - - if (!inode_owner_or_capable(inode)) { - err = -EPERM; - goto setflags_out; - } - if (get_user(flags, (int __user *)arg)) { - err = -EFAULT; - goto setflags_out; - } - /* - * Is it quota file? Do not allow user to mess with it - */ - if (IS_NOQUOTA(inode)) { - err = -EPERM; - goto setflags_out; - } - err = vfs_ioc_setflags_prepare(inode, - REISERFS_I(inode)->i_attrs, - flags); - if (err) - goto setflags_out; - if ((flags & REISERFS_NOTAIL_FL) && - S_ISREG(inode->i_mode)) { - int result; - - result = reiserfs_unpack(inode, filp); - if (result) { - err = result; - goto setflags_out; - } - } - sd_attrs_to_i_attrs(flags, inode); - REISERFS_I(inode)->i_attrs = flags; - inode->i_ctime = current_time(inode); - mark_inode_dirty(inode); -setflags_out: - mnt_drop_write_file(filp); - break; - } case REISERFS_IOC_GETVERSION: err = put_user(inode->i_generation, (int __user *)arg); break; @@ -138,12 +132,6 @@ long reiserfs_compat_ioctl(struct file *file, unsigned int cmd, case REISERFS_IOC32_UNPACK: cmd = REISERFS_IOC_UNPACK; break; - case REISERFS_IOC32_GETFLAGS: - cmd = REISERFS_IOC_GETFLAGS; - break; - case REISERFS_IOC32_SETFLAGS: - cmd = REISERFS_IOC_SETFLAGS; - break; case REISERFS_IOC32_GETVERSION: cmd = REISERFS_IOC_GETVERSION; break; @@ -165,7 +153,7 @@ int reiserfs_commit_write(struct file *f, struct page *page, * Function try to convert tail from direct item into indirect. * It set up nopack attribute in the REISERFS_I(inode)->nopack */ -int reiserfs_unpack(struct inode *inode, struct file *filp) +int reiserfs_unpack(struct inode *inode) { int retval = 0; int index; diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c index 1594687582f0..d595b7f23fac 100644 --- a/fs/reiserfs/namei.c +++ b/fs/reiserfs/namei.c @@ -1657,6 +1657,8 @@ const struct inode_operations reiserfs_dir_inode_operations = { .permission = reiserfs_permission, .get_acl = reiserfs_get_acl, .set_acl = reiserfs_set_acl, + .miscattr_get = reiserfs_miscattr_get, + .miscattr_set = reiserfs_miscattr_set, }; /* diff --git a/fs/reiserfs/reiserfs.h b/fs/reiserfs/reiserfs.h index f69871516167..b7e06fbca65a 100644 --- a/fs/reiserfs/reiserfs.h +++ b/fs/reiserfs/reiserfs.h @@ -18,8 +18,6 @@ /* the 32 bit compat definitions with int argument */ #define REISERFS_IOC32_UNPACK _IOW(0xCD, 1, int) -#define REISERFS_IOC32_GETFLAGS FS_IOC32_GETFLAGS -#define REISERFS_IOC32_SETFLAGS FS_IOC32_SETFLAGS #define REISERFS_IOC32_GETVERSION FS_IOC32_GETVERSION #define REISERFS_IOC32_SETVERSION FS_IOC32_SETVERSION @@ -3407,7 +3405,9 @@ __u32 r5_hash(const signed char *msg, int len); #define SPARE_SPACE 500 /* prototypes from ioctl.c */ +int reiserfs_miscattr_get(struct dentry *dentry, struct miscattr *ma); +int reiserfs_miscattr_set(struct dentry *dentry, struct miscattr *ma); long reiserfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); long reiserfs_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); -int reiserfs_unpack(struct inode *inode, struct file *filp); +int reiserfs_unpack(struct inode *inode); diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index 1b9c7a387dc7..3ffafc73acf0 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -2408,7 +2408,7 @@ static int reiserfs_quota_on(struct super_block *sb, int type, int format_id, * IO to work */ if (!(REISERFS_I(inode)->i_flags & i_nopack_mask)) { - err = reiserfs_unpack(inode, NULL); + err = reiserfs_unpack(inode); if (err) { reiserfs_warning(sb, "super-6520", "Unpacking tail of quota file failed" -- 2.26.2