[3.13.y.z extended stable] Patch "mtip32xx: Set queue bounce limit" has been added to staging queue

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    mtip32xx: Set queue bounce limit

to the linux-3.13.y-queue branch of the 3.13.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.13.y-queue

This patch is scheduled to be released in version 3.13.11.1.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.13.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From 552620729c8fb9bce75ebe56181a6152930a4e23 Mon Sep 17 00:00:00 2001
From: Felipe Franciosi <felipe at paradoxo.org>
Date: Thu, 13 Mar 2014 14:34:20 +0000
Subject: mtip32xx: Set queue bounce limit

commit 1044b1bb9278f2e656a1a7b63dc24a59506540aa upstream.

We need to set the queue bounce limit during the device initialization to
prevent excessive bouncing on 32 bit architectures.

Signed-off-by: Felipe Franciosi <felipe at paradoxo.org>
Signed-off-by: Jens Axboe <axboe at fb.com>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 drivers/block/mtip32xx/mtip32xx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 050c712..2730722 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -4145,6 +4145,7 @@ skip_create_disk:
 	blk_queue_max_hw_sectors(dd->queue, 0xffff);
 	blk_queue_max_segment_size(dd->queue, 0x400000);
 	blk_queue_io_min(dd->queue, 4096);
+	blk_queue_bounce_limit(dd->queue, dd->pdev->dma_mask);

 	/*
 	 * write back cache is not supported in the device. FUA depends on
--
1.9.1