Re: [PATCH] add cpu_relax to hrtimer_cancel

[Thomas Gleixner <tglx@linutronix.de>]

On Mon, 2006-04-03 at 14:00 -0400, Joe Korty wrote:
> Add a cpu_relax() to the hand-coded spinwait in hrtimer_cancel().
> 
> Signed-off-by: Joe Korty <joe.korty@ccur.com>
> 
> 
>  2.6.17-rc1-jak/kernel/hrtimer.c |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff -puNa kernel/hrtimer.c~add.cpu_relax.to.hrtimer_cancel kernel/hrtimer.c
> --- 2.6.17-rc1/kernel/hrtimer.c~add.cpu_relax.to.hrtimer_cancel	2006-04-03 13:40:05.000000000 -0400
> +++ 2.6.17-rc1-jak/kernel/hrtimer.c	2006-04-03 13:41:06.000000000 -0400
> @@ -501,6 +501,7 @@ int hrtimer_cancel(struct hrtimer *timer
>  
>  		if (ret >= 0)
>  			return ret;
> +		cpu_relax();
>  	}
>  }
>  
> 
> _

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Doh. It had been there once ..:)


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/