uvm_pmr_insert
uvm_pmr_insert(pmr, pg, 0);
uvm_pmr_insert(pmr, pg, 0);
uvm_pmr_insert(pmr, pg, 0);
uvm_pmr_insert(pmr, prev, 1);
uvm_pmr_insert(drain, prev + before, 1);
uvm_pmr_insert(drain, rebuild, 1);
uvm_pmr_insert(pmr, splitpg, 1);
inserted = uvm_pmr_insert(pmr, lowest, 0);
(void) uvm_pmr_insert(pmr, lowest, 0);
struct vm_page *uvm_pmr_insert(struct uvm_pmemrange *,