Re: [RFC PATCH 10/14] ring_buffer: Fix more races when terminating the producer in the benchmark

From: Steven Rostedt
Date: Mon Aug 03 2015 - 14:33:30 EST


On Tue, 28 Jul 2015 16:39:27 +0200
Petr Mladek <pmladek@xxxxxxxx> wrote:

> @@ -384,7 +389,7 @@ static int ring_buffer_consumer_thread(void *arg)
>
> static int ring_buffer_producer_thread(void *arg)
> {
> - while (!kthread_should_stop() && !kill_test) {
> + while (!break_test()) {
> ring_buffer_reset(buffer);
>
> if (consumer) {
> @@ -393,11 +398,15 @@ static int ring_buffer_producer_thread(void *arg)
> }
>
> ring_buffer_producer();
> - if (kill_test)
> + if (break_test())
> goto out_kill;
>
> trace_printk("Sleeping for 10 secs\n");
> set_current_state(TASK_INTERRUPTIBLE);
> + if (break_test()) {
> + __set_current_state(TASK_RUNNING);

Move the setting of the current state to after the out_kill label.

-- Steve

> + goto out_kill;
> + }
> schedule_timeout(HZ * SLEEP_TIME);
> }
>

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/