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-rw-r--r--mm/slub.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/mm/slub.c b/mm/slub.c
index 9acb413858ac..b9f37cb0f2e6 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2558,8 +2558,12 @@ size_t ksize(const void *object)
if (unlikely(object == ZERO_SIZE_PTR))
return 0;
- page = get_object_page(object);
+ page = virt_to_head_page(object);
BUG_ON(!page);
+
+ if (unlikely(!PageSlab(page)))
+ return PAGE_SIZE << compound_order(page);
+
s = page->slab;
BUG_ON(!s);