linux-kernel - Re: [PATCH 0/6] sched/cpusets fixes, more changes are needed

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Message-ID: <20100325161008.GA11724@redhat.com>
Date:	Thu, 25 Mar 2010 17:10:08 +0100
From:	Oleg Nesterov <oleg@...hat.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Ingo Molnar <mingo@...e.hu>, Ben Blum <bblum@...gle.com>,
	Jiri Slaby <jirislaby@...il.com>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Li Zefan <lizf@...fujitsu.com>,
	Miao Xie <miaox@...fujitsu.com>,
	Paul Menage <menage@...gle.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>, Tejun Heo <tj@...nel.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/6] sched/cpusets fixes, more changes are needed

Argh, sorry for noise...

On 03/25, Oleg Nesterov wrote:
>
> On 03/25, Oleg Nesterov wrote:
> >
> > I like the current idea to call select_task_rq() without rq->lock, but
> > of course this is up to you.
> >
> > However, once again, can't we make a simpler patch?
> >
> > 	- remove PF_STARTING from task_waking()
> > 	
> > 	- change sched_fork() to set RUNNING instead of WAKING

When I reread this thread, suddenly finally I noticed you mentioned
_twice_ your patch does this too ;) Not to mention the patch itself
which I misread. Sorry.

> IOW, something like the (unchecked, uncompiled) patch below.

Still, what do you think?

Oleg.

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