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Date: Mon, 20 Jun 2016 15:56:43 -0400
From: Tejun Heo <tj@kernel.org>
Subject: Re: [PATCH v9 06/12] kthread: Add kthread_drain_worker()
Message-ID: <20160620195643.GX3262@mtj.duckdns.org>
References: <1466075851-24013-1-git-send-email-pmladek@suse.com>
 <1466075851-24013-7-git-send-email-pmladek@suse.com>
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To: Petr Mladek <pmladek@suse.com>
Cc: Andrew Morton <akpm@linux-foundation.org>, Oleg Nesterov <oleg@redhat.com>, Ingo Molnar <mingo@redhat.com>, Peter Zijlstra <peterz@infradead.org>, Steven Rostedt <rostedt@goodmis.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>, linux-api@vger.kernel.org, linux-kernel@vger.kernel.org

On Thu, Jun 16, 2016 at 01:17:25PM +0200, Petr Mladek wrote:
> kthread_flush_worker() returns when the currently queued works are proceed.
> But some other works might have been queued in the meantime.
> 
> This patch adds kthread_drain_worker() that is inspired by
> drain_workqueue(). It returns when the queue is completely
> empty and warns when it takes too long.
> 
> The initial implementation does not block queuing new works when
> draining. It makes things much easier. The blocking would be useful
> to debug potential problems but it is not clear if it is worth
> the complication at the moment.
> 
> Signed-off-by: Petr Mladek <pmladek@suse.com>

Acked-by: Tejun Heo <tj@kernel.org>

Thanks.

-- 
tejun

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