[PATCH 2/3] ext3: don't inherit inappropriate inode flags from parent

[Duane Griffin]

At present INDEX is the only flag that new ext3 inodes do NOT inherit from
their parent. In addition prevent the flags DIRTY, ECOMPR, IMAGIC and
TOPDIR from being inherited.

Signed-off-by: Duane Griffin <duaneg@xxxxxxxxx>

diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c
index 7712682..1d9fe3f 100644
--- a/fs/ext3/ialloc.c
+++ b/fs/ext3/ialloc.c
@@ -559,7 +559,7 @@ got:
 	ei->i_dir_start_lookup = 0;
 	ei->i_disksize = 0;
 
-	ei->i_flags = EXT3_I(dir)->i_flags & ~EXT3_INDEX_FL;
+	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 */
diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h
index 36c5403..4f7224a 100644
--- a/include/linux/ext3_fs.h
+++ b/include/linux/ext3_fs.h
@@ -178,6 +178,10 @@ struct ext3_group_desc
 #define EXT3_FL_USER_VISIBLE		0x0003DFFF /* User visible flags */
 #define EXT3_FL_USER_MODIFIABLE		0x000380FF /* User modifiable flags */
 
+/* Flags that should be inherited by new inodes from their parent. */
+#define EXT3_FL_INHERITED ~(EXT3_DIRTY_FL | EXT3_ECOMPR_FL | EXT3_INDEX_FL |\
+			    EXT3_IMAGIC_FL | EXT3_TOPDIR_FL)
+
 /*
  * Inode dynamic state flags
  */
-- 
1.5.3.7

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