mm: fix swapin race condition

[mv-sheeva.git] / mm / ksm.c

diff --git a/mm/ksm.c b/mm/ksm.c
index e2ae00458320786a380a1ab370efe0dc6cfd6e1a..b1873cf03ed986bcb062259da8f1c4093a97160b 100644 (file)
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -1504,8 +1504,6 @@ struct page *ksm_does_need_to_copy(struct page *page,
 {
        struct page *new_page;
 
-       unlock_page(page);      /* any racers will COW it, not modify it */
-
        new_page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, address);
        if (new_page) {
                copy_user_highpage(new_page, page, address, vma);
@@ -1521,7 +1519,6 @@ struct page *ksm_does_need_to_copy(struct page *page,
                        add_page_to_unevictable_list(new_page);
        }
 
-       page_cache_release(page);
        return new_page;
 }