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-rw-r--r--drivers/xen/balloon.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 8069d520c460..2ba8f95516a0 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -299,10 +299,13 @@ static int decrease_reservation(unsigned long nr_pages)
299 299
300 scrub_page(page); 300 scrub_page(page);
301 301
302 ret = HYPERVISOR_update_va_mapping( 302 if (!PageHighMem(page)) {
303 (unsigned long)__va(pfn << PAGE_SHIFT), 303 ret = HYPERVISOR_update_va_mapping(
304 __pte_ma(0), 0); 304 (unsigned long)__va(pfn << PAGE_SHIFT),
305 BUG_ON(ret); 305 __pte_ma(0), 0);
306 BUG_ON(ret);
307 }
308
306 } 309 }
307 310
308 /* Ensure that ballooned highmem pages don't have kmaps. */ 311 /* Ensure that ballooned highmem pages don't have kmaps. */