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-rw-r--r--mm/internal.h20
1 files changed, 0 insertions, 20 deletions
diff --git a/mm/internal.h b/mm/internal.h
index 54bd0dc2c23c..2f1182948aa6 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -96,26 +96,6 @@ static inline void set_page_refcounted(struct page *page)
set_page_count(page, 1);
}
-/*
- * When kernel touch the user page, the user page may be have been marked
- * poison but still mapped in user space, if without this page, the kernel
- * can guarantee the data integrity and operation success, the kernel is
- * better to check the posion status and avoid touching it, be good not to
- * panic, coredump for process fatal signal is a sample case matching this
- * scenario. Or if kernel can't guarantee the data integrity, it's better
- * not to call this function, let kernel touch the poison page and get to
- * panic.
- */
-static inline bool is_page_poisoned(struct page *page)
-{
- if (PageHWPoison(page))
- return true;
- else if (PageHuge(page) && PageHWPoison(compound_head(page)))
- return true;
-
- return false;
-}
-
extern unsigned long highest_memmap_pfn;
/*