pmap_pv_remove
pmap_pv_remove(pmap, pg, va, dolock);
void pmap_pv_remove(pmap_t, struct vm_page *, vaddr_t, boolean_t);
if ((pve = pmap_pv_remove(pg, pmap_kernel(), va)))
pve = pmap_pv_remove(pg, pmap, va);
if ((pve = pmap_pv_remove(pg, pmap, sva)))