vpgtob
vpage = mdb_alloc(vpgtob(nvpage), UM_SLEEP);
if (mdb_vread(vpage, vpgtob(nvpage),
(uintptr_t)svd->vpage) != vpgtob(nvpage)) {
mdb_free(vpage, vpgtob(nvpage));
mdb_free(svd->vpage, vpgtob(nvpage));
kmem_free(sdp->vpage, vpgtob(seg_pages(seg)));
sdp->vpage = kmem_zalloc(vpgtob(seg_pages(seg)),
size_t nbytes = vpgtob(npages);
nbytes = vpgtob(npages);
kmem_free(ovpage, vpgtob(opages));
nbytes = vpgtob(npages);
kmem_free(ovpage, vpgtob(opages));
nbytes = vpgtob(npages);
nnbytes = vpgtob(nnpages);
kmem_free(ovpage, vpgtob(opages));
nvpsize = vpgtob(npages1 + npages2);
bcopy(vpage1, nvpage, vpgtob(npages1));
bcopy(vpage2, nvpage + npages1, vpgtob(npages2));
kmem_free(vpage1, vpgtob(npages1));
kmem_free(vpage2, vpgtob(npages2));
kmem_zalloc(vpgtob(seg_pages(seg1) + seg_pages(seg2)),
bcopy(svd1->vpage, new_vpage, vpgtob(seg_pages(seg1)));
kmem_free(svd1->vpage, vpgtob(seg_pages(seg1)));
kmem_zalloc(vpgtob(seg_pages(seg1) + seg_pages(seg2)),
vpgtob(seg_pages(seg2)));
kmem_free(svd2->vpage, vpgtob(seg_pages(seg2)));
kmem_alloc(vpgtob(npages), KM_SLEEP);
nbytes = vpgtob(npages);
kmem_free(ovpage, vpgtob(opages));
nbytes = vpgtob(npages);
kmem_free(ovpage, vpgtob(opages));
nbytes = vpgtob(npages);
nbytes = vpgtob(npages);
kmem_free(ovpage, vpgtob(opages));
kmem_free(svd->vpage, vpgtob(npages));
size_t bytes = vpgtob(seg_pages(seg));
size_t nbytes = vpgtob(seg_pages(nseg));