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-rw-r--r--mm/util.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/mm/util.c b/mm/util.c
index f7bc2096071c..808f375648e7 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -390,7 +390,10 @@ struct address_space *page_mapping(struct page *page)
{
struct address_space *mapping = page->mapping;
- VM_BUG_ON(PageSlab(page));
+ /* This happens if someone calls flush_dcache_page on slab page */
+ if (unlikely(PageSlab(page)))
+ return NULL;
+
if (unlikely(PageSwapCache(page))) {
swp_entry_t entry;