At few places we could use BLK_STS_OK and BLK_STS_NOSUPP.
Signed-off-by: NAnand Jain <anand.jain@oracle.com>
Reviewed-by: NSatoru Taekeuchi <satoru.takeuchi@gmail.com>
Reviewed-by: NDavid Sterba <dsterba@suse.com>
[ dropped first hunk btrfs_endio_direct_read ]
Signed-off-by: NDavid Sterba <dsterba@suse.com>