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-rw-r--r--mm/memory-failure.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 9d87fcab96c9..73066b80d14a 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -916,6 +916,7 @@ static bool hwpoison_user_mappings(struct page *p, unsigned long pfn,
bool unmap_success;
int kill = 1, forcekill;
struct page *hpage = *hpagep;
+ bool mlocked = PageMlocked(hpage);
/*
* Here we are interested only in user-mapped pages, so skip any
@@ -980,6 +981,13 @@ static bool hwpoison_user_mappings(struct page *p, unsigned long pfn,
pfn, page_mapcount(hpage));
/*
+ * try_to_unmap() might put mlocked page in lru cache, so call
+ * shake_page() again to ensure that it's flushed.
+ */
+ if (mlocked)
+ shake_page(hpage, 0);
+
+ /*
* Now that the dirty bit has been propagated to the
* struct page and all unmaps done we can decide if
* killing is needed or not. Only kill when the page