uvm_page_get_freelist
pgfl = &uvm.page_free[uvm_page_get_freelist(pg)];
uvm_page_get_freelist(pg));
int fl = uvm_page_get_freelist(pg);
uvm_page_get_freelist(pg));
KASSERT(uvm_page_get_freelist(pg) == fl);
fl = uvm_page_get_freelist(pg);
pgfl = &uvm.page_free[uvm_page_get_freelist(pg)];