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From: Steven Rostedt <rostedt@goodmis.org>
To: Petr Mladek <pmladek@suse.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Oleg Nesterov <oleg@redhat.com>, Tejun Heo <tj@kernel.org>,
	Ingo Molnar <mingo@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	Josh Triplett <josh@joshtriplett.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Jiri Kosina <jkosina@suse.cz>, Borislav Petkov <bp@suse.de>,
	Michal Hocko <mhocko@suse.cz>,
	linux-mm@kvack.org, Vlastimil Babka <vbabka@suse.cz>,
	live-patching@vger.kernel.org, linux-api@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH 10/14] ring_buffer: Fix more races when terminating the producer in the benchmark
Date: Mon, 3 Aug 2015 14:33:23 -0400	[thread overview]
Message-ID: <20150803143323.426ea2fc@gandalf.local.home> (raw)
In-Reply-To: <1438094371-8326-11-git-send-email-pmladek@suse.com>

On Tue, 28 Jul 2015 16:39:27 +0200
Petr Mladek <pmladek@suse.com> 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);
>  	}
>  

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  reply	other threads:[~2015-08-03 18:33 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-28 14:39 [RFC PATCH 00/14] kthread: Use kthread worker API more widely Petr Mladek
2015-07-28 14:39 ` [RFC PATCH 01/14] kthread: Allow to call __kthread_create_on_node() with va_list args Petr Mladek
2015-07-28 14:39 ` [RFC PATCH 02/14] kthread: Add create_kthread_worker*() Petr Mladek
2015-07-28 14:39 ` [RFC PATCH 03/14] kthread: Add drain_kthread_worker() Petr Mladek
2015-07-28 17:18   ` Tejun Heo
2015-07-29 10:04     ` Petr Mladek
2015-07-29 15:03       ` Tejun Heo
2015-07-28 14:39 ` [RFC PATCH 04/14] kthread: Add destroy_kthread_worker() Petr Mladek
2015-07-28 14:39 ` [RFC PATCH 05/14] kthread: Add wakeup_and_destroy_kthread_worker() Petr Mladek
2015-07-28 17:23   ` Tejun Heo
2015-07-28 14:39 ` [RFC PATCH 06/14] kthread: Add kthread_worker_created() Petr Mladek
2015-07-28 17:26   ` Tejun Heo
2015-07-29 10:07     ` Petr Mladek
2015-07-28 14:39 ` [RFC PATCH 07/14] mm/huge_page: Convert khugepaged() into kthread worker API Petr Mladek
2015-07-28 17:36   ` Tejun Heo
2015-07-29 11:32     ` Petr Mladek
2015-07-28 14:39 ` [RFC PATCH 08/14] rcu: Convert RCU gp kthreads " Petr Mladek
2015-07-28 17:37   ` Tejun Heo
2015-07-28 14:39 ` [RFC PATCH 09/14] ring_buffer: Initialize completions statically in the benchmark Petr Mladek
2015-08-03 18:31   ` Steven Rostedt
2015-09-04  9:31     ` Petr Mladek
2015-09-04 13:15       ` Steven Rostedt
2015-07-28 14:39 ` [RFC PATCH 10/14] ring_buffer: Fix more races when terminating the producer " Petr Mladek
2015-08-03 18:33   ` Steven Rostedt [this message]
2015-09-04  9:38     ` Petr Mladek
2015-09-07 17:49       ` Oleg Nesterov
2015-07-28 14:39 ` [RFC PATCH 11/14] ring_buffer: Use kthread worker API for the producer kthread " Petr Mladek
2015-07-28 14:39 ` [RFC PATCH 12/14] kthread_worker: Better support freezable kthread workers Petr Mladek
2015-07-28 14:39 ` [RFC PATCH 13/14] kthread_worker: Add set_kthread_worker_user_nice() Petr Mladek
2015-07-28 17:40   ` Tejun Heo
2015-07-29 11:23     ` Petr Mladek
2015-07-29 15:12       ` Tejun Heo
2015-07-28 14:39 ` [RFC PATCH 14/14] kthread_worker: Add set_kthread_worker_scheduler*() Petr Mladek
2015-07-28 17:41   ` Tejun Heo
2015-07-28 19:48     ` Peter Zijlstra

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