From: "Duane Griffin" Subject: [PATCH 1/6] ext2: don't inherit inappropriate inode flags from parent Date: Wed, 3 Dec 2008 19:54:58 +0000 Message-ID: <1228334103-15948-2-git-send-email-duaneg@dghda.com> References: <1228334103-15948-1-git-send-email-duaneg@dghda.com> Cc: Andreas Dilger , "Aneesh Kumar K.V" , linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, Duane Griffin To: akpm@linux-foundation.org Return-path: Received: from kumera.dghda.com ([80.68.90.171]:2864 "EHLO kumera.dghda.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756722AbYLCUBx (ORCPT ); Wed, 3 Dec 2008 15:01:53 -0500 In-Reply-To: <1228334103-15948-1-git-send-email-duaneg@dghda.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: At present BTREE/INDEX is the only flag that new ext2 inodes do NOT inherit from their parent. In addition prevent the flags DIRTY, ECOMPR, INDEX, IMAGIC and TOPDIR from being inherited. List inheritable flags explicitly to prevent future flags from accidentally being inherited. This fixes the TOPDIR flag inheritance bug reported at http://bugzilla.kernel.org/show_bug.cgi?id=9866. Signed-off-by: Duane Griffin --- fs/ext2/ialloc.c | 2 +- include/linux/ext2_fs.h | 7 +++++++ 2 files changed, 8 insertions(+), 1 deletions(-) diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c index 8d0add6..8c1897e 100644 --- a/fs/ext2/ialloc.c +++ b/fs/ext2/ialloc.c @@ -565,7 +565,7 @@ got: inode->i_blocks = 0; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; memset(ei->i_data, 0, sizeof(ei->i_data)); - ei->i_flags = EXT2_I(dir)->i_flags & ~EXT2_BTREE_FL; + ei->i_flags = EXT2_I(dir)->i_flags & EXT2_FL_INHERITED; if (S_ISLNK(mode)) ei->i_flags &= ~(EXT2_IMMUTABLE_FL|EXT2_APPEND_FL); /* dirsync is only applied to directories */ diff --git a/include/linux/ext2_fs.h b/include/linux/ext2_fs.h index 78c775a..c3a0518 100644 --- a/include/linux/ext2_fs.h +++ b/include/linux/ext2_fs.h @@ -194,6 +194,13 @@ struct ext2_group_desc #define EXT2_FL_USER_VISIBLE FS_FL_USER_VISIBLE /* User visible flags */ #define EXT2_FL_USER_MODIFIABLE FS_FL_USER_MODIFIABLE /* User modifiable flags */ +/* Flags that should be inherited by new inodes from their parent. */ +#define EXT2_FL_INHERITED (EXT2_SECRM_FL | EXT2_UNRM_FL | EXT2_COMPR_FL |\ + EXT2_SYNC_FL | EXT2_IMMUTABLE_FL | EXT2_APPEND_FL |\ + EXT2_NODUMP_FL | EXT2_NOATIME_FL | EXT2_COMPRBLK_FL|\ + EXT2_NOCOMP_FL | EXT2_JOURNAL_DATA_FL |\ + EXT2_NOTAIL_FL | EXT2_DIRSYNC_FL) + /* * ioctl commands */ -- 1.5.6.4