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authorPaul E. McKenney <paulmck@kernel.org>2020-07-23 15:53:02 -0700
committerPaul E. McKenney <paulmck@kernel.org>2020-08-24 18:38:38 -0700
commit65bd77f554336407f5fd7ced7a6df686767fba21 (patch)
tree439a1b46519f76e6ef8f17aa0ae18ba2e6d708f7 /kernel/scftorture.c
parent9e66bf03f9c538863e614a72c5799bcd9579630e (diff)
scftorture: Add cond_resched() to test loop
Although the test loop does randomly delay, which would provide quiescent states and so forth, it is possible for there to be a series of long smp_call_function*() handler runtimes with no delays, which results in softlockup and RCU CPU stall warning messages. This commit therefore inserts a cond_resched() into the main test loop. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/scftorture.c')
-rw-r--r--kernel/scftorture.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/scftorture.c b/kernel/scftorture.c
index fc22bcc9a589..554a521ee235 100644
--- a/kernel/scftorture.c
+++ b/kernel/scftorture.c
@@ -420,6 +420,7 @@ static int scftorture_invoker(void *arg)
set_cpus_allowed_ptr(current, cpumask_of(cpu));
was_offline = false;
}
+ cond_resched();
} while (!torture_must_stop());
VERBOSE_SCFTORTOUT("scftorture_invoker %d ended", scfp->cpu);