MIPS: Select CONFIG_ARCH_USE_CMPXCHG_LOCKREF for MIPS64

[linux-drm-fsl-dcu.git] / mm / huge_memory.c

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index c107094f79bae9ee895bd6bf30976d900f16c141..097c7a4bfbd9f13f4845acae80d73aa7b0e66fb2 100644 (file)
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1676,12 +1676,7 @@ static void __split_huge_page_refcount(struct page *page,
                /* after clearing PageTail the gup refcount can be released */
                smp_mb__after_atomic();
 
-               /*
-                * retain hwpoison flag of the poisoned tail page:
-                *   fix for the unsuitable process killed on Guest Machine(KVM)
-                *   by the memory-failure.
-                */
-               page_tail->flags &= ~PAGE_FLAGS_CHECK_AT_PREP | __PG_HWPOISON;
+               page_tail->flags &= ~PAGE_FLAGS_CHECK_AT_PREP;
                page_tail->flags |= (page->flags &
                                     ((1L << PG_referenced) |
                                      (1L << PG_swapbacked) |