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ext2,ext3,ext4: don't inherit APPEND_FL or IMMUTABLE_FL for new inodes

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This doesn't make much sense, and it exposes a bug in the kernel where
attempts to create a new file in an append-only directory using
O_CREAT will fail (but still leave a zero-length file).  This was
discovered when xfstests #79 was generalized so it could run on all
file systems.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc:stable@kernel.org
This commit is contained in:
Theodore Ts'o
2011-08-31 11:54:51 -04:00
parent 8c0bec2151
commit 1cd9f0976a
3 changed files with 5 additions and 6 deletions
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include/linux/ext2_fs.h
+2 -2
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@@ -197,8 +197,8 @@ struct ext2_group_desc
/* 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_SYNC_FL | EXT2_NODUMP_FL |\
EXT2_NOATIME_FL | EXT2_COMPRBLK_FL |\
EXT2_NOCOMP_FL | EXT2_JOURNAL_DATA_FL |\
EXT2_NOTAIL_FL | EXT2_DIRSYNC_FL)