1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 8dc7109d61b7..2ba8f95516a0 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -298,6 +298,14 @@ static int decrease_reservation(unsigned long nr_pages)
                 frame_list[i] = pfn_to_mfn(pfn);
 
                 scrub_page(page);
+
+                if (!PageHighMem(page)) {
+                        ret = HYPERVISOR_update_va_mapping(
+                                (unsigned long)__va(pfn << PAGE_SHIFT),
+                                __pte_ma(0), 0);
+                        BUG_ON(ret);
+                }
+
         }
 
         /* Ensure that ballooned highmem pages don't have kmaps. */