From mboxrd@z Thu Jan  1 00:00:00 1970
From: Greg KH <greg@kroah.com>
Subject: Re: MSEC_TO_JIFFIES is messed up...
Date: Wed, 12 May 2004 13:32:51 -0700
Sender: netdev-bounce@oss.sgi.com
Message-ID: <20040512203251.GA16336@kroah.com>
References: <20040512020700.6f6aa61f.akpm@osdl.org> <20040512181903.GG13421@kroah.com> <40A26FFA.4030701@pobox.com> <20040512193349.GA14936@elte.hu> <Pine.LNX.4.58.0405121247011.11950@bigblue.dev.mdolabs.com> <20040512200305.GA16078@elte.hu> <20040512132050.6eae6905.akpm@osdl.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Cc: Ingo Molnar <mingo@elte.hu>, davidel@xmailserver.org, jgarzik@pobox.com,
        linux-kernel@vger.kernel.org, netdev@oss.sgi.com
Return-path: <netdev-bounce@oss.sgi.com>
To: Andrew Morton <akpm@osdl.org>
Content-Disposition: inline
In-Reply-To: <20040512132050.6eae6905.akpm@osdl.org>
Errors-to: netdev-bounce@oss.sgi.com
List-Id: netdev.vger.kernel.org

On Wed, May 12, 2004 at 01:20:50PM -0700, Andrew Morton wrote:
> How about we do:
> 
> #if HZ=1000
> #define	MSEC_TO_JIFFIES(msec) (msec)
> #define JIFFIES_TO_MESC(jiffies) (jiffies)
> #elif HZ=100
> #define	MSEC_TO_JIFFIES(msec) (msec * 10)
> #define JIFFIES_TO_MESC(jiffies) (jiffies / 10)
> #else
> #define	MSEC_TO_JIFFIES(msec) ((HZ * (msec) + 999) / 1000)
> #define	JIFFIES_TO_MSEC(jiffies) ...
> #endif
> 
> in some kernel-wide header then kill off all the private implementations?

Looks good to me.

thanks,

greg k-h