From: Pete Wyckoff <pw@osc.edu>
Date: Tue, 1 Jan 2008 15:23:02 +0000 (-0500)
Subject: block: allow queue dma_alignment of zero
X-Git-Tag: v2.6.25-rc1~1171^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=482eb689169948e9f4966fbae6be4d6bc0bfa818;p=pandora-kernel.git

block: allow queue dma_alignment of zero

Let queue_dma_alignment return 0 if it was specifically set to 0.
This permits devices with no particular alignment restrictions to
use arbitrary user space buffers without copying.

Signed-off-by: Pete Wyckoff <pw@osc.edu>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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