2014-02-18 21:47:00

by Asai Thambi SP

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 <[email protected]>
Signed-off-by: Sam Bradshaw <[email protected]>
---
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

2014-02-18 22:48:43

by Jens Axboe

Subject: Re: [PATCH] mtip32xx: Reduce the number of unaligned writes to 2

On Tue, Feb 18 2014, Asai Thambi S P wrote:
> Hi Jens,
>
> Please include this for 3.14. It is a trivial change, hope it should be ok.

I have applied it. However, your mailer seems to be changing tabs to
spaces, so it had to be hand applied. Not a big deal for this patch, but
worth checking up on for bigger patches.

--
Jens Axboe