From 78d5ae39af19a02a3d16213c0f62930d9a5d25f7 Mon Sep 17 00:00:00 2001
From: Shane Huang <shane.huang@amd.com>
Date: Fri, 7 Aug 2009 15:05:52 +0800
Subject: [PATCH] ahci: kill @force_restart and refine CLO for
 ahci_kick_engine()

This patch refines ahci_kick_engine() after discussion with Tejun about
FBS(FIS-based switching) support preparation:
a. Kill @force_restart and always kick the engine. The only case where
   @force_restart is zero is when it's called from ahci_p5wdh_hardreset()
   Actually at that point, BSY is pretty much guaranteed to be set.
b. If PMP is attached, ignore busy and always do CLO. (AHCI-1.3 9.2)

Signed-off-by: Shane Huang <shane.huang@amd.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---
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