xfs: reject unknown xattri log item filter flags during recovery

xfs: reject unknown xattri log item filter flags during recovery

Source kernel commit: 85d76aec6bbb3dd0131511e73d48b2816e7ab8de

Make sure we screen the "attr flags" field of recovered xattr intent log
items to reject flag bits that we don't know about.  This is really the
attr *filter* field from xfs_da_args, so rename the field and create
a mask to make checking for invalid bits easier.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>