AMAP_REFALL
amap_adjref_anons(amap, offset, len, 1, (flags & AMAP_REFALL) != 0);
uvm_unmap_detach(dead_entries, AMAP_REFALL);
((flags & UVM_EXTRACT_QREF) ? AMAP_REFALL : 0));
(flags & UVM_EXTRACT_QREF) ? AMAP_REFALL : 0);