diff options
| -rw-r--r-- | drivers/xen/balloon.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index 8069d52..2ba8f95 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -299,10 +299,13 @@ static int decrease_reservation(unsigned long nr_pages) scrub_page(page); - ret = HYPERVISOR_update_va_mapping( - (unsigned long)__va(pfn << PAGE_SHIFT), - __pte_ma(0), 0); - BUG_ON(ret); + 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. */ |
