linux-kernel - Re: [PATCH 2/5] cpuidle/idle: Move the cpuidle_idle

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <52FB6A83.9080800@linaro.org>
Date:	Wed, 12 Feb 2014 13:35:15 +0100
From:	Daniel Lezcano <daniel.lezcano@...aro.org>
To:	Preeti U Murthy <preeti@...ux.vnet.ibm.com>
CC:	mingo@...nel.org, peterz@...radead.org, tglx@...utronix.de,
	rjw@...ysocki.net, nicolas.pitre@...aro.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/5] cpuidle/idle: Move the cpuidle_idle_call function
 to idle.c

On 02/12/2014 11:43 AM, Preeti U Murthy wrote:
> Hi Daniel,
>
> On 02/11/2014 08:41 PM, Daniel Lezcano wrote:
>> The cpuidle_idle_call does nothing more than calling the three individuals
>> function and is no longer used by any arch specific code but only in the
>> cpuidle framework code.
>>
>> We can move this function into the idle task code to ensure better
>> proximity to the scheduler code.
>
> So my understanding of this patchset is that by moving
> cpuidle_idle_call() under kernel/sched, we now have a way of calling
> into the cpuidle governor and the cpuidle driver with additional
> parameters like cpu_load(), idle_stamp etc.. so that we can expect the
> governor and driver to take better decisions about entry and exit into
> idle states. Is this the advantage we hope to begin with?

Yes, right.


-- 
  <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs

Follow Linaro:  <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/