xfs: return FIEMAP_EXTENT_UNKNOWN for delayed allocation extent
xfs: return FIEMAP_EXTENT_UNKNOWN for delayed allocation extent

For FIEMAP ioctl(2), if an extent is in delayed allocation
state, we need to return the FIEMAP_EXTENT_UNKNOWN flag except
the FIEMAP_EXTENT_DELALLOC because its data location is unknown.

Signed-off-by: Jie Liu <9edab3d8932dbb8f20eb55cd8199c20e7fb56c12@oracle.com>
Reviewed-by: Ben Myers <46e490cac450e85a9cba3059365826296771cc03@sgi.com>
Signed-off-by: Ben Myers <46e490cac450e85a9cba3059365826296771cc03@sgi.com>


KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs