From: Thomas Gleixner <tglx@linutronix.de>
To: joe.korty@ccur.com
Cc: Ingo Molnar <mingo@elte.hu>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] add cpu_relax to hrtimer_cancel
Date: Mon, 03 Apr 2006 23:13:18 +0200 [thread overview]
Message-ID: <1144098798.5344.386.camel@localhost.localdomain> (raw)
In-Reply-To: <20060403180037.GA21038@tsunami.ccur.com>
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 ..:)
prev parent reply other threads:[~2006-04-03 21:13 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-03 18:00 Joe Korty
2006-04-03 21:13 ` Thomas Gleixner [this message]
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