linux-kernel - Re: [PATCH repost] sched: export sched

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Message-ID: <4C3E9CBB.202@us.ibm.com>
Date:	Wed, 14 Jul 2010 22:29:31 -0700
From:	Sridhar Samudrala <sri@...ibm.com>
To:	Oleg Nesterov <oleg@...hat.com>
CC:	"Michael S. Tsirkin" <mst@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Tejun Heo <tj@...nel.org>, Ingo Molnar <mingo@...e.hu>,
	netdev <netdev@...r.kernel.org>,
	lkml <linux-kernel@...r.kernel.org>,
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Dmitri Vorobiev <dmitri.vorobiev@...ial.com>,
	Jiri Kosina <jkosina@...e.cz>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH repost] sched: export sched_set/getaffinity to modules

On 7/14/2010 5:05 PM, Oleg Nesterov wrote:
> On 07/14, Sridhar Samudrala wrote:
>    
>> OK. So we want to create a thread that is a child of kthreadd, but inherits the cgroup/cpumask
>> from the caller. How about an exported kthread function kthread_create_in_current_cg()
>> that does this?
>>      
> Well. I must admit, this looks a bit strange to me ;)
>
> Instead of exporting sched_xxxaffinity() we export the new function
> which calls them. And I don't think this new helper is very useful
> in general. May be I am wrong...
>    
If we agree on exporting sched_xxxaffinity() functions, we don't need 
this new kthread function and we
can do the same in vhost as the original patch did.

Thanks
Sridhar

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