From: Alexander Gordeev <agordeev@redhat.com>
Date: Mon, 6 Oct 2014 15:26:35 +0000 (+0100)
Subject: AHCI: Do not acquire ata_host::lock from single IRQ handler
X-Git-Tag: fixes-against-v3.18-rc2~136^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=33fb0d01ce60fe4c0c12c4f0c134c5cdb818ac5a;p=pandora-kernel.git

AHCI: Do not acquire ata_host::lock from single IRQ handler

There is no need to acquire ata_host::lock spinlock from
hardware context single IRQ interrupt handler since the
handler does not access host data that could be altered
by concurrent processors.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: linux-ide@vger.kernel.org
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