From: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Mon, 15 May 2017 00:06:30 +0000 (-0700)
Subject: srcu: Fix rcutorture-statistics typo
X-Git-Tag: v4.13-rc1~209^2^2~7
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=7f0cd6333086ae09962791c31f0d4845a3329df9;p=karo-tx-linux.git

srcu: Fix rcutorture-statistics typo

The function srcutorture_get_gp_data() duplicated the check for
sp->batch_check0.head instead of also checking sp->batch_check1.head.
The only effect of this typo would be for rcutorture statistics to
understate the fraction of time that an SRCU grace period was in flight,
and only for Classic SRCU.  This commit fixes this typo.

Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---

diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h
index bc55b5716c37..27f871c88e0a 100644
--- a/kernel/rcu/rcu.h
+++ b/kernel/rcu/rcu.h
@@ -469,7 +469,7 @@ static inline void srcutorture_get_gp_data(enum rcutorture_type test_type,
 	*flags = 0;
 	*completed = sp->completed;
 	*gpnum = *completed;
-	if (sp->batch_queue.head || sp->batch_check0.head || sp->batch_check0.head)
+	if (sp->batch_queue.head || sp->batch_check0.head || sp->batch_check1.head)
 		(*gpnum)++;
 }