patch lower-case-segops

*** 1486,1496 ****
                           */
                          AS_LOCK_ENTER(as, &as->a_lock, RW_READER);
                          seg = as_findseg(as, myaddr, 0);
                          MOBJ_STAT_ADD(exec_addr_mapped);
                          if (seg && seg->s_ops == &segdev_ops &&
!                             ((SEGOP_GETTYPE(seg, myaddr) &
                              (MAP_SHARED | MAP_PRIVATE)) == 0) &&
                              myaddr >= seg->s_base &&
                              myaddr + mylen <=
                              seg->s_base + seg->s_size) {
                                  MOBJ_STAT_ADD(exec_addr_devnull);
--- 1486,1496 ----
                           */
                          AS_LOCK_ENTER(as, &as->a_lock, RW_READER);
                          seg = as_findseg(as, myaddr, 0);
                          MOBJ_STAT_ADD(exec_addr_mapped);
                          if (seg && seg->s_ops == &segdev_ops &&
!                             ((segop_gettype(seg, myaddr) &
                              (MAP_SHARED | MAP_PRIVATE)) == 0) &&
                              myaddr >= seg->s_base &&
                              myaddr + mylen <=
                              seg->s_base + seg->s_size) {
                                  MOBJ_STAT_ADD(exec_addr_devnull);