dmu_prefetch
dmu_prefetch(os, bigobj, 0, n * chunksize, s * chunksize,
dmu_prefetch(spa->spa_meta_objset, object, 0, 0, 1ULL << 20,
dmu_prefetch(ra->os, object, 1, offset, length,
dmu_prefetch(sm->sm_os, space_map_object(sm), 0, 0, end,
void dmu_prefetch(objset_t *os, uint64_t object, int64_t level, uint64_t offset,
dmu_prefetch(zc->zc_objset, zc->zc_zapobj, 0, 0,
dmu_prefetch(zap->zap_objset, zap->zap_object, 0,
dmu_prefetch(zap->zap_objset, zap->zap_object, 0,
dmu_prefetch(zap->zap_objset, zap->zap_object, 0, blk << bs, 1 << bs,
dmu_prefetch(os, objnum, 0, 0, 0,