linux-kernel - Re: [PATCH 1/2] sched: INIT_PREEMPT

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Message-ID: <47357.1247257453@turing-police.cc.vt.edu>
Date:	Fri, 10 Jul 2009 16:24:13 -0400
From:	Valdis.Kletnieks@...edu
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Matt Mackall <mpm@...enic.com>,
	Anton Vorontsov <avorontsov@...mvista.com>,
	Andrew Morton <akpm@...ux-foundation.org>, oleg@...hat.com,
	mingo@...e.hu, tony.luck@...el.com, rth@...ddle.net,
	geert@...ux-m68k.org
Subject: Re: [PATCH 1/2] sched: INIT_PREEMPT_COUNT

On Fri, 10 Jul 2009 17:51:06 +0200, Peter Zijlstra said:

> Something along the lines of the below?
> 
> ---
> Index: linux-2.6/include/linux/sched.h
> ===================================================================
> --- linux-2.6.orig/include/linux/sched.h
> +++ linux-2.6/include/linux/sched.h
> @@ -502,7 +502,9 @@ struct task_cputime {
>  
>  /*
>   * Disable preemption until the scheduler is running.
> - * Reset by start_kernel()->sched_init()->init_idle().
> + *
> + * We reset this initial offset of init_thread_info.preempt_count in:
> + *     start_kernel()->sched_init()->init_idle().
>   */
>  #define INIT_PREEMPT_COUNT	(1)

Works for me, thanks...

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