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-rw-r--r--mm/swap_state.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/mm/swap_state.c b/mm/swap_state.c
index e10f5833167f..5c8cfabbc9bc 100644
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -157,6 +157,12 @@ int add_to_swap(struct page *page)
if (!entry.val)
return 0;
+ if (unlikely(PageTransHuge(page)))
+ if (unlikely(split_huge_page(page))) {
+ swapcache_free(entry, NULL);
+ return 0;
+ }
+
/*
* Radix-tree node allocations from PF_MEMALLOC contexts could
* completely exhaust the page allocator. __GFP_NOMEMALLOC