the dns_rdataslab_fromrdataset() function creates a slab from an rdataset. if the source rdataset already uses a slab, then no processing is necessary; we can just copy the existing slab to a new location.
the dns_rdataslab_fromrdataset() function creates a slab from an rdataset. if the source rdataset already uses a slab, then no processing is necessary; we can just copy the existing slab to a new location.