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-rw-r--r--mm/sparse.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/mm/sparse.c b/mm/sparse.c
index a83de2f72b30..c7be01906998 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -771,6 +771,27 @@ out:
return ret;
}
+#ifdef CONFIG_MEMORY_FAILURE
+static void clear_hwpoisoned_pages(struct page *memmap, int nr_pages)
+{
+ int i;
+
+ if (!memmap)
+ return;
+
+ for (i = 0; i < PAGES_PER_SECTION; i++) {
+ if (PageHWPoison(&memmap[i])) {
+ atomic_long_sub(1, &mce_bad_pages);
+ ClearPageHWPoison(&memmap[i]);
+ }
+ }
+}
+#else
+static inline void clear_hwpoisoned_pages(struct page *memmap, int nr_pages)
+{
+}
+#endif
+
void sparse_remove_one_section(struct zone *zone, struct mem_section *ms)
{
struct page *memmap = NULL;
@@ -784,6 +805,7 @@ void sparse_remove_one_section(struct zone *zone, struct mem_section *ms)
ms->pageblock_flags = NULL;
}
+ clear_hwpoisoned_pages(memmap, PAGES_PER_SECTION);
free_section_usemap(memmap, usemap);
}
#endif