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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: linux-kernel@vger.kernel.org, Vinod Koul <vinod.koul@intel.com>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: [PATCH 01/10] dmatest: cancel thread immediately when asked for
Date: Mon,  4 Mar 2013 11:09:25 +0200	[thread overview]
Message-ID: <1362388174-3435-2-git-send-email-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <1362388174-3435-1-git-send-email-andriy.shevchenko@linux.intel.com>

If user have the timeout alike issues and wants to cancel the thread
immediately, the current call of wait_event_freezable_timeout is preventing to
this until timeout is expired. Thus, user will experience the unnecessary
delays.

Adding kthread_should_stop() check inside wait_event_freezable_timeout() solves
that.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/dma/dmatest.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index a2c8904..e6b4cfa 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -454,7 +454,8 @@ static int dmatest_func(void *data)
 		}
 		dma_async_issue_pending(chan);
 
-		wait_event_freezable_timeout(done_wait, done.done,
+		wait_event_freezable_timeout(done_wait,
+					     done.done || kthread_should_stop(),
 					     msecs_to_jiffies(timeout));
 
 		status = dma_async_is_tx_complete(chan, cookie, NULL, NULL);
-- 
1.8.2.rc0.22.gb3600c3


  reply	other threads:[~2013-03-04  9:11 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-03-04  9:09 [PATCH 00/10] dmatest: update the module to use debugfs Andy Shevchenko
2013-03-04  9:09 ` Andy Shevchenko [this message]
2013-03-05  1:41   ` [PATCH 01/10] dmatest: cancel thread immediately when asked for Viresh Kumar
2013-03-04  9:09 ` [PATCH 02/10] dmatest: allocate memory for pq_coefs from heap Andy Shevchenko
2013-03-05  1:43   ` Viresh Kumar
2013-03-04  9:09 ` [PATCH 03/10] dmatest: create dmatest_info to keep test parameters Andy Shevchenko
2013-03-05  1:47   ` Viresh Kumar
2013-03-04  9:09 ` [PATCH 04/10] dmatest: move dmatest_channels and nr_channels to dmatest_info Andy Shevchenko
2013-03-05  9:03   ` Vinod Koul
2013-03-05  9:12   ` Viresh Kumar
2013-03-05  9:19     ` Andy Shevchenko
2013-03-04  9:09 ` [PATCH 05/10] dmatest: split test parameters to separate structure Andy Shevchenko
2013-03-05  9:16   ` Viresh Kumar
2013-03-08 13:07     ` Andy Shevchenko
2013-03-04  9:09 ` [PATCH 06/10] dmatest: run test via debugfs Andy Shevchenko
2013-03-05  9:26   ` Vinod Koul
2013-03-05 10:36     ` Andy Shevchenko
2013-03-05 10:35       ` Vinod Koul
     [not found]         ` <CAHp75Vc6KmPQYjSx5m+gEBCe4g2tRgEPKyg4hZx9ytk99pB7Qw@mail.gmail.com>
     [not found]           ` <20130307061143.GD13370@intel.com>
2013-03-07  8:37             ` Andy Shevchenko
2013-03-04  9:09 ` [PATCH 07/10] dmatest: return actual state in 'run' file Andy Shevchenko
2013-03-04  9:09 ` [PATCH 08/10] dmatest: define MAX_ERROR_COUNT constant Andy Shevchenko
2013-03-04  9:09 ` [PATCH 09/10] dmatest: gather test results in the linked list Andy Shevchenko
2013-11-05 19:58   ` Dan Williams
2013-11-06 14:13     ` Andy Shevchenko
2013-11-06 18:11       ` Dan Williams
2013-11-07 14:37         ` Andy Shevchenko
2013-03-04  9:09 ` [PATCH 10/10] dmatest: append verify result to results Andy Shevchenko
2013-03-07  6:20 ` [PATCH 00/10] dmatest: update the module to use debugfs Vinod Koul
2013-03-08 13:11   ` Andy Shevchenko
2013-03-10 13:44     ` Viresh Kumar
2013-03-11  8:12       ` Andy Shevchenko
2013-03-21  5:11 ` Vinod Koul

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