mm: thp: give transparent hugepage code a separate copy_page

[~andy/linux] / mm / hugetlb.c

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 7d57af21f49e920776979dfe11023780ebff6afb..2130365d387d33f7820041d338b5f8e86243170f 100644 (file)
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -476,40 +476,6 @@ static int vma_has_reserves(struct vm_area_struct *vma, long chg)
        return 0;
 }
 
-static void copy_gigantic_page(struct page *dst, struct page *src)
-{
-       int i;
-       struct hstate *h = page_hstate(src);
-       struct page *dst_base = dst;
-       struct page *src_base = src;
-
-       for (i = 0; i < pages_per_huge_page(h); ) {
-               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;
-       struct hstate *h = page_hstate(src);
-
-       if (unlikely(pages_per_huge_page(h) > MAX_ORDER_NR_PAGES)) {
-               copy_gigantic_page(dst, src);
-               return;
-       }
-
-       might_sleep();
-       for (i = 0; i < pages_per_huge_page(h); i++) {
-               cond_resched();
-               copy_highpage(dst + i, src + i);
-       }
-}
-
 static void enqueue_huge_page(struct hstate *h, struct page *page)
 {
        int nid = page_to_nid(page);