From: Tejun Heo Date: Wed, 5 Dec 2007 07:43:12 +0000 (+0900) Subject: libata: make qc->nbytes include extra buffers X-Git-Tag: v2.6.25-rc1~1233^2~24 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0bcc65ad78ae517de16b2ca07a2891f49d44d156;p=pandora-kernel.git libata: make qc->nbytes include extra buffers qc->nbytes didn't use to include extra buffers setup by libata core layer and my be odd. This patch makes qc->nbytes include any extra buffers setup by libata core layer and guaranteed to be aligned on 4 byte boundary. This value is to be used to program the host controller. As this represents the actual length of buffer available to the controller and the controller must be able to deal with short transfers for ATAPI commands which can transfer variable length, this shouldn't break any controllers while making problems like rounding-down and controllers choking up on odd transfer bytes much less likely. The unmodified value is stored in new field qc->raw_nbytes. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- Reading git-diff-tree failed