[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>
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 6fa3178..5f38c46 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -310,7 +310,7 @@
{
#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,