linux-kernel - [PATCH 3/9] rsxx: Fixes incorrect stats calculation.

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Message-ID: <20130430195125.GC22764@oc6784271780.ibm.com>
Date:	Tue, 30 Apr 2013 14:51:25 -0500
From:	"Philip J. Kelleher" <pjk1939@...ux.vnet.ibm.com>
To:	axboe@...nel.dk
Cc:	linux-kernel@...r.kernel.org, klebers@...ux.vnet.ibm.com,
	brking@...ux.vnet.ibm.com
Subject: [PATCH 3/9] rsxx: Fixes incorrect stats calculation.

From: Philip J Kelleher <pjk1939@...ux.vnet.ibm.com>

Fixing incorrect stats calculation during read retries.

Signed-off-by: Philip J Kelleher <pjk1939@...ux.vnet.ibm.com>
-------------------------------------------------------------------------------


diff -uprN -X linux-block-vanilla/Documentation/dontdiff linux-block-vanilla/drivers/block/rsxx/dma.c linux-block/drivers/block/rsxx/dma.c
--- linux-block-vanilla/drivers/block/rsxx/dma.c	2013-04-29 11:25:00.596187375 -0500
+++ linux-block/drivers/block/rsxx/dma.c	2013-04-29 13:58:27.979188201 -0500
@@ -253,6 +253,7 @@ static void rsxx_requeue_dma(struct rsxx
 	 * first.
 	 */
 	spin_lock(&ctrl->queue_lock);
+	ctrl->stats.sw_q_depth++;
 	list_add(&dma->list, &ctrl->queue);
 	spin_unlock(&ctrl->queue_lock);
 }

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