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-rw-r--r--drivers/xen/balloon.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 8dc7109d61b7..8069d520c460 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -298,6 +298,11 @@ static int decrease_reservation(unsigned long nr_pages)
298 frame_list[i] = pfn_to_mfn(pfn); 298 frame_list[i] = pfn_to_mfn(pfn);
299 299
300 scrub_page(page); 300 scrub_page(page);
301
302 ret = HYPERVISOR_update_va_mapping(
303 (unsigned long)__va(pfn << PAGE_SHIFT),
304 __pte_ma(0), 0);
305 BUG_ON(ret);
301 } 306 }
302 307
303 /* Ensure that ballooned highmem pages don't have kmaps. */ 308 /* Ensure that ballooned highmem pages don't have kmaps. */