93a94
> #include <sys/filio.h>
2916a2918,2929
> case FIOSEEKHOLE:
> case FIOSEEKDATA: {
> off_t *off = (off_t *)data;
> uint64_t noff;
> boolean_t hole;
>
> hole = (cmd == FIOSEEKHOLE);
> noff = *off;
> error = dmu_offset_next(zv->zv_objset, ZVOL_OBJ, hole, &noff);
> *off = noff;
> break;
> }