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-rw-r--r--mm/highmem.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/mm/highmem.c b/mm/highmem.c
index 91b45ae5a..834968569 100644
--- a/mm/highmem.c
+++ b/mm/highmem.c
@@ -86,9 +86,8 @@ struct page * replace_with_highmem(struct page * page)
copy_page((void *)vaddr, (void *)page_address(page));
kunmap(highpage);
- /* Preserve the caching of the swap_entry. */
- highpage->index = page->index;
- highpage->mapping = page->mapping;
+ if (page->mapping)
+ BUG();
/*
* We can just forget the old page since