239         case PIOCSTOP:
 240         case PIOCWSTOP:
 241         case PIOCLWPIDS:
 242         case PIOCGTRACE:
 243         case PIOCGENTRY:
 244         case PIOCGEXIT:
 245         case PIOCSRLC:
 246         case PIOCRRLC:
 247         case PIOCSFORK:
 248         case PIOCRFORK:
 249         case PIOCGREG:
 250         case PIOCGFPREG:
 251         case PIOCSTATUS:
 252         case PIOCLSTATUS:
 253         case PIOCPSINFO:
 254         case PIOCMAXSIG:
 255         case PIOCGXREGSIZE:
 256                 break;
 257         case PIOCSXREG:         /* set extra registers */
 258         case PIOCGXREG:         /* get extra registers */
 259 #if defined(__sparc)
 260                 thingsize = sizeof (prxregset_t);
 261 #else
 262                 thingsize = 0;
 263 #endif
 264                 break;
 265         case PIOCACTION:
 266                 thingsize = (nsig-1) * sizeof (struct sigaction);
 267                 break;
 268         case PIOCGHOLD:
 269         case PIOCNMAP:
 270         case PIOCMAP:
 271         case PIOCGFAULT:
 272         case PIOCCFAULT:
 273         case PIOCCRED:
 274         case PIOCGROUPS:
 275         case PIOCUSAGE:
 276         case PIOCLUSAGE:
 277                 break;
 278         case PIOCOPENPD:
 279                 /*
 280                  * We will need this below.
 281                  * Allocate it now, before locking the process.
 282                  */
 283                 xpnp = prgetnode(vp, PR_OPAGEDATA);

 239         case PIOCSTOP:
 240         case PIOCWSTOP:
 241         case PIOCLWPIDS:
 242         case PIOCGTRACE:
 243         case PIOCGENTRY:
 244         case PIOCGEXIT:
 245         case PIOCSRLC:
 246         case PIOCRRLC:
 247         case PIOCSFORK:
 248         case PIOCRFORK:
 249         case PIOCGREG:
 250         case PIOCGFPREG:
 251         case PIOCSTATUS:
 252         case PIOCLSTATUS:
 253         case PIOCPSINFO:
 254         case PIOCMAXSIG:
 255         case PIOCGXREGSIZE:
 256                 break;
 257         case PIOCSXREG:         /* set extra registers */
 258         case PIOCGXREG:         /* get extra registers */

 259                 thingsize = sizeof (prxregset_t);



 260                 break;
 261         case PIOCACTION:
 262                 thingsize = (nsig-1) * sizeof (struct sigaction);
 263                 break;
 264         case PIOCGHOLD:
 265         case PIOCNMAP:
 266         case PIOCMAP:
 267         case PIOCGFAULT:
 268         case PIOCCFAULT:
 269         case PIOCCRED:
 270         case PIOCGROUPS:
 271         case PIOCUSAGE:
 272         case PIOCLUSAGE:
 273                 break;
 274         case PIOCOPENPD:
 275                 /*
 276                  * We will need this below.
 277                  * Allocate it now, before locking the process.
 278                  */
 279                 xpnp = prgetnode(vp, PR_OPAGEDATA);