Merge branch 'x86/ptrace-syscall-exit' of git://git.kernel.org/pub/scm/linux/kernel...

[linux-block.git] / mm / rmap.c

diff --git a/mm/rmap.c b/mm/rmap.c
index 1406e67f961374da3d3ec06e9a0f65eeae38fb17..720fc03a7bc454de75fa86f542770ab9b9660788 100644 (file)
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -710,27 +710,6 @@ void page_add_file_rmap(struct page *page)
        }
 }
 
-#ifdef CONFIG_DEBUG_VM
-/**
- * page_dup_rmap - duplicate pte mapping to a page
- * @page:      the page to add the mapping to
- * @vma:       the vm area being duplicated
- * @address:   the user virtual address mapped
- *
- * For copy_page_range only: minimal extract from page_add_file_rmap /
- * page_add_anon_rmap, avoiding unnecessary tests (already checked) so it's
- * quicker.
- *
- * The caller needs to hold the pte lock.
- */
-void page_dup_rmap(struct page *page, struct vm_area_struct *vma, unsigned long address)
-{
-       if (PageAnon(page))
-               __page_check_anon_rmap(page, vma, address);
-       atomic_inc(&page->_mapcount);
-}
-#endif
-
 /**
  * page_remove_rmap - take down pte mapping from a page
  * @page: page to remove mapping from