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ext3: don't inherit inappropriate inode flags from parent

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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.  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 <[email protected]>
Acked-by: Andreas Dilger <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Duane Griffin 2009-01-07 18:07:26 -08:00 • committed by Linus Torvalds
commit 2e8671cb56
2 changed files with 8 additions and 1 deletions
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2
fs/ext3/ialloc.c
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@ -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 */