Re: [PATCH] Consolidate multiple implementations of jiffies-msecsconversions.

From: Edgar Toernig
Date: Thu Mar 25 2004 - 19:53:46 EST

Sridhar Samudrala wrote:
> The following patch to 2.6.5-rc2 consolidates 6 different implementations
> of msecs to jiffies and 3 different implementation of jiffies to msecs.
> All of them now use the generic msecs_to_jiffies() and jiffies_to_msecs()
> that are added to include/linux/time.h
> -#define MSECS(ms) (((ms)*HZ/1000)+1)
> -return (((ms)*HZ+999)/1000);
> +return (msecs / 1000) * HZ + (msecs % 1000) * HZ / 1000;

Did you check that all users of the new version will work correctly
with your rounding? Explicit round-up of delays is often required,
especially when talking to hardware...

Ciao, ET.
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