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AHCI: Do not acquire ata_host::lock from single IRQ handler
authorAlexander Gordeev <agordeev@redhat.com>
Mon, 6 Oct 2014 15:26:35 +0000 (16:26 +0100)
committerTejun Heo <tj@kernel.org>
Mon, 6 Oct 2014 15:43:36 +0000 (11:43 -0400)
commit33fb0d01ce60fe4c0c12c4f0c134c5cdb818ac5a
treebcf6430240b39ed54f03709f0fc681831627b7d1tree | snapshot
parent18dcf433f3ded61eb140a55e7048ec2fef79e723commit | diff
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
drivers/ata/libahci.c diff | blob | history
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