swap_pager_alloc
vn->sc_object = swap_pager_alloc(NULL,
obj = swap_pager_alloc(NULL,
object = swap_pager_alloc(NULL, PAGE_SIZE * page_count,
swap_pager_alloc(NULL, size, VM_PROT_DEFAULT, 0);
nnode->tn_reg.tn_aobj = swap_pager_alloc(NULL, 0,
vm_object_t swap_pager_alloc(void *, off_t, vm_prot_t, off_t);