linux-kernel - Re: [PATCH] msm: timer: Support sched

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Message-ID: <4F47C7C5.4090806@arm.com>
Date:	Fri, 24 Feb 2012 17:24:21 +0000
From:	Marc Zyngier <marc.zyngier@....com>
To:	David Brown <davidb@...eaurora.org>
CC:	Stephen Boyd <sboyd@...eaurora.org>,
	"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] msm: timer: Support sched_clock()

On 24/02/12 17:09, David Brown wrote:
> On Fri, Feb 24, 2012 at 10:11:14AM +0000, Marc Zyngier wrote:
>> On 22/02/12 21:55, David Brown wrote:
>>> On Tue, Feb 21, 2012 at 05:39:37PM -0800, Stephen Boyd wrote:
>>>> Now that sched_clock is mandatory on ARM it's simple to add
>>>> sched_clock support to the MSM timer code. Add it so that we get
>>>> more accurate sched_clock output than the jiffies based version
>>>> that's provided by default.
>>>>
>>>> Signed-off-by: Stephen Boyd <sboyd@...eaurora.org>
>>>> Cc: Marc Zyngier <marc.zyngier@....com>
>>>> Cc: David Brown <davidb@...eaurora.org>
>>>
>>> Marc, are you able to pull this into your series, so they can all go
>>> in together?  If so:
>>>
>>>   Acked-by: David Brown <davidb@...eaurora.org>
>>
>> David, Stephen,
>>
>> Russell already pulled my sched_clock() patch series, so I'm not sure it
>> is actually useful for me to carry it (and there is actually no
>> dependency between this patch and the series). Maybe putting it in the
>> patch system or via armsoc would be best?
>>
>> Otherwise:
>> Acked-by: Marc Zyngier <marc.zyngier@....com>
> 
> I'll keep an eye on it then, and push it into the ARM soc tree when
> the dependencies are there.

The whole thing is that there's no dependency. The sched_clock() stuff
has hit mainline during the merge window. This patch could go in right
now, without any harm.

What Russell pulled is just a cleanup to convert the last two platforms
having their own sched_clock() and not relying on our framework.

	M.
-- 
Jazz is not dead. It just smells funny...

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