diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 094455b..ac5f044 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -310,6 +310,9 @@
 	BUG_ON(start & ~HPAGE_MASK);
 	BUG_ON(end & ~HPAGE_MASK);
 
+	/* Update high watermark before we lower rss */
+	update_hiwater_rss(mm);
+
 	for (address = start; address < end; address += HPAGE_SIZE) {
 		ptep = huge_pte_offset(mm, address);
 		if (! ptep)