linux-kernel - Re: [PATCH v7 0/8] Tunable sched_mc_power

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Message-ID: <20081219082909.GE22463@dirshya.in.ibm.com>
Date:	Fri, 19 Dec 2008 13:59:09 +0530
From:	Vaidyanathan Srinivasan <svaidy@...ux.vnet.ibm.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>,
	Suresh B Siddha <suresh.b.siddha@...el.com>,
	Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Dipankar Sarma <dipankar@...ibm.com>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	Vatsa <vatsa@...ux.vnet.ibm.com>,
	Gautham R Shenoy <ego@...ibm.com>,
	Andi Kleen <andi@...stfloor.org>,
	David Collier-Brown <davecb@....com>,
	Tim Connors <tconnors@...ro.swin.edu.au>,
	Max Krasnyansky <maxk@...lcomm.com>,
	Gregory Haskins <gregory.haskins@...il.com>,
	Pavel Machek <pavel@...e.cz>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v7 0/8] Tunable sched_mc_power_savings=n

* Ingo Molnar <mingo@...e.hu> [2008-12-18 21:31:40]:

> 
> * Ingo Molnar <mingo@...e.hu> wrote:
> 
> > thanks, applied - and i started testing them. [...]
> 
> the sched.h bits needed the small fix below. (struct sched_domain is not 
> defined on UP)

Thanks Ingo. I will watch out for such errors next time.

Signed-off-by: Vaidyanathan Srinivasan <svaidy@...ux.vnet.ibm.com>

--Vaidy

> 
> 	Ingo
> 
> ------------->
> From edb4c71953409c1deac1a80528ac0aa768762b33 Mon Sep 17 00:00:00 2001
> From: Ingo Molnar <mingo@...e.hu>
> Date: Thu, 18 Dec 2008 21:30:23 +0100
> Subject: [PATCH] sched: move test_sd_parent() to an SMP section of sched.h
> 
> Impact: build fix
> 
> Signed-off-by: Ingo Molnar <mingo@...e.hu>
> ---
>  include/linux/sched.h |   18 +++++++++---------
>  1 files changed, 9 insertions(+), 9 deletions(-)
> 
> diff --git a/include/linux/sched.h b/include/linux/sched.h
> index 5a933d9..e5f928a 100644
> --- a/include/linux/sched.h
> +++ b/include/linux/sched.h
> @@ -920,6 +920,15 @@ extern void partition_sched_domains(int ndoms_new, struct cpumask *doms_new,
>  				    struct sched_domain_attr *dattr_new);
>  extern int arch_reinit_sched_domains(void);
> 
> +/* Test a flag in parent sched domain */
> +static inline int test_sd_parent(struct sched_domain *sd, int flag)
> +{
> +	if (sd->parent && (sd->parent->flags & flag))
> +		return 1;
> +
> +	return 0;
> +}
> +
>  #else /* CONFIG_SMP */
> 
>  struct sched_domain_attr;
> @@ -1431,15 +1440,6 @@ struct task_struct {
>  #endif
>  };
> 
> -/* Test a flag in parent sched domain */
> -static inline int test_sd_parent(struct sched_domain *sd, int flag)
> -{
> -	if (sd->parent && (sd->parent->flags & flag))
> -		return 1;
> -
> -	return 0;
> -}
> -
>  /*
>   * Priority of a process goes from 0..MAX_PRIO-1, valid RT
>   * priority is 0..MAX_RT_PRIO-1, and SCHED_NORMAL/SCHED_BATCH
--
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