- del_timer(&wb->wakeup_timer);
-
- pages_written = wb_do_writeback(wb, 0);
-
+ do {
+ pages_written = wb_do_writeback(wb, 0);
+ trace_writeback_pages_written(pages_written);
+ } while (!list_empty(&bdi->work_list));
+ } else {
+ /*
+ * bdi_wq can't get enough workers and we're running off
+ * the emergency worker. Don't hog it. Hopefully, 1024 is
+ * enough for efficient IO.
+ */
+ pages_written = writeback_inodes_wb(&bdi->wb, 1024,
+ WB_REASON_FORKER_THREAD);