linux-kernel - [PATCH 3.10 119/123] i2c: at91: dont account as iowait

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Message-Id: <20141112011724.370138792@linuxfoundation.org>
Date:	Wed, 12 Nov 2014 10:18:05 +0900
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Wolfram Sang <wsa@...-dreams.de>,
	Ludovic Desroches <ludovic.desroches@...el.com>
Subject: [PATCH 3.10 119/123] i2c: at91: dont account as iowait

3.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Wolfram Sang <wsa@...-dreams.de>

commit 11cfbfb098b22d3e57f1f2be217cad20e2d48463 upstream.

iowait is for blkio [1]. I2C shouldn't use it.

[1] https://lkml.org/lkml/2014/11/3/317

Signed-off-by: Wolfram Sang <wsa@...-dreams.de>
Acked-by: Ludovic Desroches <ludovic.desroches@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/i2c/busses/i2c-at91.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/i2c/busses/i2c-at91.c
+++ b/drivers/i2c/busses/i2c-at91.c
@@ -435,7 +435,7 @@ static int at91_do_twi_transfer(struct a
 		}
 	}
 
-	ret = wait_for_completion_io_timeout(&dev->cmd_complete,
+	ret = wait_for_completion_timeout(&dev->cmd_complete,
 					     dev->adapter.timeout);
 	if (ret == 0) {
 		dev_err(dev->dev, "controller timed out\n");


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