linux-kernel - Re: [patch] Re: how to link to hrtimers in the kernel

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Message-ID: <alpine.LFD.2.00.0810061849090.3166@apollo>
Date:	Mon, 6 Oct 2008 18:51:50 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	"Randy.Dunlap" <rdunlap@...otime.net>
cc:	George Nychis <gnychis@....edu>, linux-kernel@...r.kernel.org
Subject: Re: [patch] Re: how to link to hrtimers in the kernel

On Mon, 6 Oct 2008, Randy.Dunlap wrote:
> On Mon, 6 Oct 2008, George Nychis wrote:
> 
> > Hi all,
> > 
> > I have modified drivers/usb/core/devio.c to use hrtimer_nanosleep(), and have
> > included linux/hrtimer.h with it.

Please do not use hrtimer_nanosleep() in drivers. That's
wrong.

What do you want to achieve ?
 
> Export hrtimer_nanosleep() for module use.

NAK, hrtimer_nanosleep is part of the user space interfaces.

> Signed-off-by: Randy Dunlap <randy.dunlap@...cle.com>
> ---
>  kernel/hrtimer.c |    1 +
>  1 file changed, 1 insertion(+)
> 
> --- linux-2.6.27-rc8-git5.orig/kernel/hrtimer.c
> +++ linux-2.6.27-rc8-git5/kernel/hrtimer.c
> @@ -1559,6 +1559,7 @@ out:
>  	destroy_hrtimer_on_stack(&t.timer);
>  	return ret;
>  }
> +EXPORT_SYMBOL_GPL(hrtimer_nanosleep);
>  
>  asmlinkage long
>  sys_nanosleep(struct timespec __user *rqtp, struct timespec __user *rmtp)
> 
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