[S390] add support for nonquiescing sske

Improve performance of the sske operation by using the nonquiescing
variant if the affected page has no mappings established. On machines
with no support for the new sske variant the mask bit will be ignored.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index f4d4120e512..6f3c6ae4fe0 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -108,7 +108,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addres
 #endif
 
 #ifndef __HAVE_ARCH_PAGE_CLEAR_DIRTY
-#define page_clear_dirty(page)          do { } while (0)
+#define page_clear_dirty(page, mapped)  do { } while (0)
 #endif
 
 #ifndef __HAVE_ARCH_PAGE_TEST_DIRTY
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 6fa317801e1..5f38c460367 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -310,7 +310,7 @@ static inline void SetPageUptodate(struct page *page)
 {
 #ifdef CONFIG_S390
         if (!test_and_set_bit(PG_uptodate, &page->flags))
-                page_clear_dirty(page);
+                page_clear_dirty(page, 0);
 #else
         /*
          * Memory barrier must be issued before setting the PG_uptodate bit,