mm: reduce rmap overhead for ex-KSM page copies created on swap faults

[karo-tx-linux.git] / mm / ksm.c

diff --git a/mm/ksm.c b/mm/ksm.c
index 51573858938d1435a5b74c2c36dbd833b5c27837..e1f1f278075fc63fdde1b808c118c6dee2e88a64 100644 (file)
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -1590,13 +1590,7 @@ struct page *ksm_does_need_to_copy(struct page *page,
 
                SetPageDirty(new_page);
                __SetPageUptodate(new_page);
-               SetPageSwapBacked(new_page);
                __set_page_locked(new_page);
-
-               if (!mlocked_vma_newpage(vma, new_page))
-                       lru_cache_add_lru(new_page, LRU_ACTIVE_ANON);
-               else
-                       add_page_to_unevictable_list(new_page);
        }
 
        return new_page;