linux-kernel - [PATCH] mtip32xx: Reduce the number of unaligned writes to 2

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Date:	Tue, 18 Feb 2014 13:46:51 -0800
From:	Asai Thambi S P <asamymuthupa@...ron.com>
To:	Jens Axboe <axboe@...nel.dk>
CC:	<linux-kernel@...r.kernel.org>, Sam Bradshaw <sbradshaw@...ron.com>
Subject: [PATCH] mtip32xx: Reduce the number of unaligned writes to 2

Hi Jens,

Please include this for 3.14. It is a trivial change, hope it should be ok.

--
Regards,
Asai


After several experiments, deduced the the optimal number of unaligned
writes to be 2. Changing the value accordingly.

Signed-off-by: Asai Thambi S P <asamymuthupa@...ron.com>
Signed-off-by: Sam Bradshaw <sbradshaw@...ron.com>
---
 drivers/block/mtip32xx/mtip32xx.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/block/mtip32xx/mtip32xx.h
b/drivers/block/mtip32xx/mtip32xx.h
index b52e9a6..54174cb 100644
--- a/drivers/block/mtip32xx/mtip32xx.h
+++ b/drivers/block/mtip32xx/mtip32xx.h
@@ -53,7 +53,7 @@
 #define MTIP_FTL_REBUILD_TIMEOUT_MS    2400000

 /* unaligned IO handling */
-#define MTIP_MAX_UNALIGNED_SLOTS       8
+#define MTIP_MAX_UNALIGNED_SLOTS       2

 /* Macro to extract the tag bit number from a tag value. */
 #define MTIP_TAG_BIT(tag)      (tag & 0x1F)
--
1.7.1
--
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