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-rw-r--r--mm/ksm.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/ksm.c b/mm/ksm.c
index ba266359da55..d20d7662419b 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -2784,6 +2784,8 @@ struct page *ksm_might_need_to_copy(struct page *page,
anon_vma->root == vma->anon_vma->root) {
return page; /* still no need to copy it */
}
+ if (PageHWPoison(page))
+ return ERR_PTR(-EHWPOISON);
if (!PageUptodate(page))
return page; /* let do_swap_page report the error */