diff --git a/[refs] b/[refs]
index b442eb3a24bb..6aa217bc98f2 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 028c2dd184c097809986684f2f0627eea5529fea
+refs/heads/master: 9e094383b60066996fbc3b53891324e5d2ec858d
diff --git a/trunk/include/trace/events/writeback.h b/trunk/include/trace/events/writeback.h
index 0be26acae064..bde92e07fa4f 100644
--- a/trunk/include/trace/events/writeback.h
+++ b/trunk/include/trace/events/writeback.h
@@ -148,6 +148,7 @@ DEFINE_WBC_EVENT(wbc_writeback_wait);
 DEFINE_WBC_EVENT(wbc_balance_dirty_start);
 DEFINE_WBC_EVENT(wbc_balance_dirty_written);
 DEFINE_WBC_EVENT(wbc_balance_dirty_wait);
+DEFINE_WBC_EVENT(wbc_writepage);
 
 #endif /* _TRACE_WRITEBACK_H */
 
diff --git a/trunk/mm/page-writeback.c b/trunk/mm/page-writeback.c
index d556cd829af6..3d2111a22236 100644
--- a/trunk/mm/page-writeback.c
+++ b/trunk/mm/page-writeback.c
@@ -933,6 +933,7 @@ int write_cache_pages(struct address_space *mapping,
 			if (!clear_page_dirty_for_io(page))
 				goto continue_unlock;
 
+			trace_wbc_writepage(wbc, mapping->backing_dev_info);
 			ret = (*writepage)(page, wbc, data);
 			if (unlikely(ret)) {
 				if (ret == AOP_WRITEPAGE_ACTIVATE) {