+ WARN_ON(max_mapping_level < iter.level);
+
+ /*
+ * If this page is already mapped at the highest
+ * viable level, there's nothing more to do.
+ */
+ if (max_mapping_level == iter.level)
+ continue;
+
+ /*
+ * The page can be remapped at a higher level, so step
+ * up to zap the parent SPTE.
+ */
+ while (max_mapping_level > iter.level)
+ tdp_iter_step_up(&iter);
+
/* Note, a successful atomic zap also does a remote TLB flush. */
- if (tdp_mmu_zap_spte_atomic(kvm, &iter))
- goto retry;
+ tdp_mmu_zap_spte_atomic(kvm, &iter);
+