* [PATCH] rcu/rcutorture: Fix expected forward progress duration in oom notifier
@ 2019-03-08 19:10 Neeraj Upadhyay
0 siblings, 0 replies; only message in thread
From: Neeraj Upadhyay @ 2019-03-08 19:10 UTC (permalink / raw)
To: paulmck, josh, rostedt, mathieu.desnoyers, jiangshanlai
Cc: linux-kernel, Neeraj Upadhyay
Fix a possible miscalculation in rcutorture_oom_notify(),
for the expected forward progress duration of current
forward progress test.
Signed-off-by: Neeraj Upadhyay <neeraju@codeaurora.org>
---
kernel/rcu/rcutorture.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index f14d1b1..5d09f79 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -1848,7 +1848,7 @@ static int rcutorture_oom_notify(struct notifier_block *self,
WARN(1, "%s invoked upon OOM during forward-progress testing.\n",
__func__);
rcu_torture_fwd_cb_hist();
- rcu_fwd_progress_check(1 + (jiffies - READ_ONCE(rcu_fwd_startat) / 2));
+ rcu_fwd_progress_check(1 + (jiffies - READ_ONCE(rcu_fwd_startat)) / 2);
WRITE_ONCE(rcu_fwd_emergency_stop, true);
smp_mb(); /* Emergency stop before free and wait to avoid hangs. */
pr_info("%s: Freed %lu RCU callbacks.\n",
--
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