thp: split_huge_page paging

[linux-2.6-block.git] / mm / rmap.c

diff --git a/mm/rmap.c b/mm/rmap.c
index c95d2ba27a0b104a50f7560740b741678c29227c..a3197a8a295b8ea515c6aa85c11512cb6d2bb06e 100644 (file)
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1400,6 +1400,7 @@ int try_to_unmap(struct page *page, enum ttu_flags flags)
        int ret;
 
        BUG_ON(!PageLocked(page));
+       BUG_ON(PageTransHuge(page));
 
        if (unlikely(PageKsm(page)))
                ret = try_to_unmap_ksm(page, flags);