From: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Date: Fri, 26 Feb 2010 22:01:32 +0000 (-0600)
Subject: cciss: fix scatter gather chain block dma direction kludge
X-Git-Tag: v2.6.34-rc1~242^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2ad6cdc20fbeea1e1744190c00cebb64e4b4c491;p=pandora-kernel.git

cciss: fix scatter gather chain block dma direction kludge

cciss: fix scatter gather chain block dma direction kludge
The data direction for the chained block of scatter gather
elements should always be PCI_DMA_TODEVICE, but was mistakenly
set to the direction of the data transfer, then a kludge to
fix it was added, in which pci_dma_sync_single_for_device or
pci_dma_sync_single_for_cpu was called.  If the correct direction
is used in the first place, the kludge isn't needed.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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