Indicate 'V' verify state always

We only print 'V' for a thread if it does a verify run after a write,
however fio can be invoked for a later verify using a different job file.
So check in do_io() as well and set verify state if appropriate.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/fio.c b/fio.c
index de6132c..6a72ce7 100644
--- a/fio.c
+++ b/fio.c
@@ -61,6 +61,9 @@
 
 static inline void td_set_runstate(struct thread_data *td, int runstate)
 {
+	if (td->runstate == runstate)
+		return;
+
 	dprint(FD_PROCESS, "pid=%d: runstate %d -> %d\n", td->pid, td->runstate,
 								runstate);
 	td->runstate = runstate;
@@ -461,8 +464,11 @@
 		 * Add verification end_io handler, if asked to verify
 		 * a previously written file.
 		 */
-		if (td->o.verify != VERIFY_NONE)
+		if (td->o.verify != VERIFY_NONE) {
 			io_u->end_io = verify_io_u;
+			td_set_runstate(td, TD_VERIFYING);
+		} else
+			td_set_runstate(td, TD_RUNNING);
 
 		ret = td_io_queue(td, io_u);
 		switch (ret) {