linux-kernel - Re: [PATCH 0/4] OPP usage fixes for RCU locking

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Date:	Mon, 21 Jan 2013 13:40:35 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	myungjoo.ham@...il.com
Cc:	Nishanth Menon <nm@...com>, linux-pm <linux-pm@...r.kernel.org>,
	Kevin <khilman@...prootsystems.com>,
	lkml <linux-kernel@...r.kernel.org>,
	lo <linux-omap@...r.kernel.org>, Jack <jack@...ed.me.uk>,
	Alexander <holler@...oftware.de>
Subject: Re: [PATCH 0/4] OPP usage fixes for RCU locking

On Monday, January 21, 2013 02:45:32 PM MyungJoo Ham wrote:
> On Sat, Jan 19, 2013 at 7:28 AM, Rafael J. Wysocki <rjw@...k.pl> wrote:
> > On Friday, January 18, 2013 01:52:31 PM Nishanth Menon wrote:
> >> Hi,
> >> Despite being documented in function documentation and in
> >> Documentation/power/opp.txt, many of the users of OPP APIs
> >> dont honor RCU lock usage appropriately.
> >>
> >> This recently appeared in IRC discussion earlier today [1].
> >> I did an audit of current usage and the following series
> >> is a result of this.
> >>
> >> NOTE:
> >> 1. The patch "PM / devfreq: exynos4_bus: honor RCU lock usage" has only
> >>    been build tested as I dont have an exynos platform to try it on. I have
> >>    tried to make it as least intrusive as possible and at least reviewed
> >>    to ensure I haven't screwed anything up.
> >>
> >> Other than this, I have added appropriate tested by information in requisite
> >> patches.
> >
> > Thanks for the fixes.
> >
> > MyungJoo, do you want me to take the devfreq ones too?
> >
> > Rafael
> 
> Yes, please take RCU-OPP patches. Having those patches splitted
> doesn't seem beneficial.

OK, I will take them.

> I'll let other devfreq patches be based on this after you get them applied.

OK

Thanks,
Rafael


-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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