From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 31 Mar 2009 18:15:15 +0000 (+0200)
Subject: ide-cd: use scatterlists for PIO transfers (non-fs requests) (v2)
X-Git-Tag: v2.6.30-rc1~418^2~37
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c7ec89994fec4353d5b4251213bdfa7b1a68c26b;p=pandora-kernel.git

ide-cd: use scatterlists for PIO transfers (non-fs requests) (v2)

Convert ide-cd to use scatterlists for PIO transfers and get rid of
partial completions (except on error) also for non-fs requests.

v2:
Do not map dataless commands to an sg since it oopses on the virt_to_page()
translation check when DEBUG_VIRTUAL is enabled.  (from Borislav Petkov,
reported/bisected-by Tetsuo Handa).

Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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