From: akpm@linux-foundation.org Subject: - ext3-tighten-restrictions-on-inode-flags.patch removed from -mm tree Date: Thu, 08 Jan 2009 14:47:06 -0800 Message-ID: <200901082247.n08Ml6tm026586@imap1.linux-foundation.org> To: duaneg@dghda.com, adilger@sun.com, linux-ext4@vger.kernel.org, mm-commits@vger.kernel.org Return-path: Received: from smtp1.linux-foundation.org ([140.211.169.13]:56416 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759776AbZAHWrl (ORCPT ); Thu, 8 Jan 2009 17:47:41 -0500 Sender: linux-ext4-owner@vger.kernel.org List-ID: The patch titled ext3: tighten restrictions on inode flags has been removed from the -mm tree. Its filename was ext3-tighten-restrictions-on-inode-flags.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: ext3: tighten restrictions on inode flags From: "Duane Griffin" At the moment there are few restrictions on which flags may be set on which inodes. Specifically DIRSYNC may only be set on directories and IMMUTABLE and APPEND may not be set on links. Tighten that to disallow TOPDIR being set on non-directories and only NODUMP and NOATIME to be set on non-regular file, non-directories. Introduces a flags masking function which masks flags based on mode and use it during inode creation and when flags are set via the ioctl to facilitate future consistency. Signed-off-by: Duane Griffin Acked-by: Andreas Dilger Cc: Signed-off-by: Andrew Morton --- fs/ext3/ialloc.c | 8 ++------ fs/ext3/ioctl.c | 3 +-- include/linux/ext3_fs.h | 17 +++++++++++++++++ 3 files changed, 20 insertions(+), 8 deletions(-) diff -puN fs/ext3/ialloc.c~ext3-tighten-restrictions-on-inode-flags fs/ext3/ialloc.c --- a/fs/ext3/ialloc.c~ext3-tighten-restrictions-on-inode-flags +++ a/fs/ext3/ialloc.c @@ -559,12 +559,8 @@ got: ei->i_dir_start_lookup = 0; ei->i_disksize = 0; - ei->i_flags = EXT3_I(dir)->i_flags & EXT3_FL_INHERITED; - if (S_ISLNK(mode)) - ei->i_flags &= ~(EXT3_IMMUTABLE_FL|EXT3_APPEND_FL); - /* dirsync only applies to directories */ - if (!S_ISDIR(mode)) - ei->i_flags &= ~EXT3_DIRSYNC_FL; + ei->i_flags = + ext3_mask_flags(mode, EXT3_I(dir)->i_flags & EXT3_FL_INHERITED); #ifdef EXT3_FRAGMENTS ei->i_faddr = 0; ei->i_frag_no = 0; diff -puN fs/ext3/ioctl.c~ext3-tighten-restrictions-on-inode-flags fs/ext3/ioctl.c --- a/fs/ext3/ioctl.c~ext3-tighten-restrictions-on-inode-flags +++ a/fs/ext3/ioctl.c @@ -53,8 +53,7 @@ int ext3_ioctl (struct inode * inode, st goto flags_out; } - if (!S_ISDIR(inode->i_mode)) - flags &= ~EXT3_DIRSYNC_FL; + flags = ext3_mask_flags(inode->i_mode, flags); mutex_lock(&inode->i_mutex); /* Is it quota file? Do not allow user to mess with it */ diff -puN include/linux/ext3_fs.h~ext3-tighten-restrictions-on-inode-flags include/linux/ext3_fs.h --- a/include/linux/ext3_fs.h~ext3-tighten-restrictions-on-inode-flags +++ a/include/linux/ext3_fs.h @@ -185,6 +185,23 @@ struct ext3_group_desc EXT3_NOCOMPR_FL | EXT3_JOURNAL_DATA_FL |\ EXT3_NOTAIL_FL | EXT3_DIRSYNC_FL) +/* Flags that are appropriate for regular files (all but dir-specific ones). */ +#define EXT3_REG_FLMASK (~(EXT3_DIRSYNC_FL | EXT3_TOPDIR_FL)) + +/* Flags that are appropriate for non-directories/regular files. */ +#define EXT3_OTHER_FLMASK (EXT3_NODUMP_FL | EXT3_NOATIME_FL) + +/* Mask out flags that are inappropriate for the given type of inode. */ +static inline __u32 ext3_mask_flags(umode_t mode, __u32 flags) +{ + if (S_ISDIR(mode)) + return flags; + else if (S_ISREG(mode)) + return flags & EXT3_REG_FLMASK; + else + return flags & EXT3_OTHER_FLMASK; +} + /* * Inode dynamic state flags */ _ Patches currently in -mm which might be from duaneg@dghda.com are origin.patch ext4-dont-inherit-inappropriate-inode-flags-from-parent.patch ext4-tighten-restrictions-on-inode-flags.patch