tracepoint: Use rcu get state and cond sync for static call updates

[linux-2.6-microblaze.git] / mm / migrate.c

diff --git a/mm/migrate.c b/mm/migrate.c
index 23cbd9d..34a9ad3 100644 (file)
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -536,54 +536,6 @@ int migrate_huge_page_move_mapping(struct address_space *mapping,
        return MIGRATEPAGE_SUCCESS;
 }
 
-/*
- * Gigantic pages are so large that we do not guarantee that page++ pointer
- * arithmetic will work across the entire page.  We need something more
- * specialized.
- */
-static void __copy_gigantic_page(struct page *dst, struct page *src,
-                               int nr_pages)
-{
-       int i;
-       struct page *dst_base = dst;
-       struct page *src_base = src;
-
-       for (i = 0; i < nr_pages; ) {
-               cond_resched();
-               copy_highpage(dst, src);
-
-               i++;
-               dst = mem_map_next(dst, dst_base, i);
-               src = mem_map_next(src, src_base, i);
-       }
-}
-
-void copy_huge_page(struct page *dst, struct page *src)
-{
-       int i;
-       int nr_pages;
-
-       if (PageHuge(src)) {
-               /* hugetlbfs page */
-               struct hstate *h = page_hstate(src);
-               nr_pages = pages_per_huge_page(h);
-
-               if (unlikely(nr_pages > MAX_ORDER_NR_PAGES)) {
-                       __copy_gigantic_page(dst, src, nr_pages);
-                       return;
-               }
-       } else {
-               /* thp page */
-               BUG_ON(!PageTransHuge(src));
-               nr_pages = thp_nr_pages(src);
-       }
-
-       for (i = 0; i < nr_pages; i++) {
-               cond_resched();
-               copy_highpage(dst + i, src + i);
-       }
-}
-
 /*
  * Copy the page to its new location
  */