On Mon, Oct 27, 2014 at 04:05:47PM +0000, Alexander Gordeev wrote:
> On Mon, Oct 27, 2014 at 09:58:02AM -0400, Tejun Heo wrote:
> > From 61e268068c92ed000f078dc1ab71d1228439fecd Mon Sep 17 00:00:00 2001
> > From: Tejun Heo <tj@xxxxxxxxxx>
> > Date: Mon, 27 Oct 2014 09:50:36 -0400
> >
> > This reverts commit 18dcf433f3ded61eb140a55e7048ec2fef79e723.
> > IRQF_ONESHOT was missing from the conversion causing screaming
> > interrupts problems on some setups and LKP detected measureable drop
> > in IO performance. It looks like we'll first need to drop the
> > threaded IRQ handling first before splitting locking.
>
> Tejun,
>
> Sorry for missing to mention - I think it is better to revert 33fb0d0
> ("AHCI: Do not acquire ata_host::lock from single IRQ handler") first,
> unless you examined it is fine to leave (I did not).
Alright, redid the revert and rebased the tree. Can you please take a
look at libata/for-3.18-fixes and see whether it looks okay?
Thanks.
--
tejun
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