linux-kernel - Re: [RFC v1 PATCH 3/7] sched: Bandwidth initialization for fair task groups

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Date:	Fri, 4 Sep 2009 18:02:15 +0530
From:	Bharata B Rao <bharata@...ux.vnet.ibm.com>
To:	Andrea Righi <arighi@...eler.com>
Cc:	linux-kernel@...r.kernel.org,
	Dhaval Giani <dhaval@...ux.vnet.ibm.com>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	Vaidyanathan Srinivasan <svaidy@...ux.vnet.ibm.com>,
	Gautham R Shenoy <ego@...ibm.com>,
	Srivatsa Vaddagiri <vatsa@...ibm.com>,
	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Pavel Emelyanov <xemul@...nvz.org>,
	Herbert Poetzl <herbert@...hfloor.at>,
	Avi Kivity <avi@...hat.com>,
	Chris Friesen <cfriesen@...tel.com>,
	Paul Menage <menage@...gle.com>,
	Mike Waychison <mikew@...gle.com>
Subject: Re: [RFC v1 PATCH 3/7] sched: Bandwidth initialization for fair
	task groups

On Fri, Sep 04, 2009 at 12:43:25PM +0200, Andrea Righi wrote:
> On Tue, Aug 25, 2009 at 03:19:50PM +0530, Bharata B Rao wrote:
> > +config CFS_HARD_LIMITS
> > +	bool "Hard Limits for CFS Group Scheduler"
> > +	depends on EXPERIMENTAL
> > +	depends on FAIR_GROUP_SCHED
> 
> Shouldn't depend also on CGROUPS and CGROUP_SCHED? without them hard
> limits can't be defined, right?

Right, but do we need to explicitly mention CGROUPS as dependency since
CGROUP_SCHED is already dependent on it ?

> 
> Signed-off-by: Andrea Righi <arighi@...eler.com>
> ---
>  init/Kconfig |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/init/Kconfig b/init/Kconfig
> index 71868a0..19c0290 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -459,7 +459,7 @@ config FAIR_GROUP_SCHED
>  config CFS_HARD_LIMITS
>  	bool "Hard Limits for CFS Group Scheduler"
>  	depends on EXPERIMENTAL
> -	depends on FAIR_GROUP_SCHED
> +	depends on FAIR_GROUP_SCHED && CGROUPS && CGROUP_SCHED
>  	default n
>  	help
>  	  This option enables hard limiting of CPU time obtained by

Thanks for looking at the patches.

Regards,
Bharata.
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