From: Paolo Bonzini <pbonzini@redhat.com>
Date: Thu, 5 Jul 2012 12:18:21 +0000 (+0200)
Subject: [libata] scsi: implement MODE SELECT command
X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~40^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1b26d29ccd592ea585c7cc291384184c5568da92;p=pandora-kernel.git

[libata] scsi: implement MODE SELECT command

The cache_type file in sysfs lets users configure the disk cache in
write-through or write-back modes.  However, ata disks do not support
writing to the file because they do not implement the MODE SELECT
command.

This patch adds a translation from MODE SELECT (for the caching page
only) to the ATA SET FEATURES command.  The set of changeable parameters
answered by MODE SENSE is also adjusted accordingly.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---

Reading git-diff-tree failed