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

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Message-ID: <4C2CABF2.2020801@kernel.org>
Date:	Thu, 01 Jul 2010 16:53:38 +0200
From:	Tejun Heo <tj@...nel.org>
To:	Oleg Nesterov <oleg@...hat.com>
CC:	"Michael S. Tsirkin" <mst@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...e.hu>,
	Sridhar Samudrala <sri@...ibm.com>,
	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

Hello,

On 07/01/2010 04:46 PM, Oleg Nesterov wrote:
>> It might be a good idea to make the function take extra clone flags
>> but anyways once created cloned task can be treated the same way as
>> other kthreads, so nothing else needs to be changed.
> 
> This makes kthread_stop() work. Otherwise the new thread is just
> the CLONE_VM child of the caller, and the caller is the user-mode
> task doing ioctl() ?

Hmmm, indeed.  It makes the attribute inheritance work but circumvents
the whole reason there is kthreadd.

Thanks.

-- 
tejun
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