Re: MSEC_TO_JIFFIES is messed up...
From: Davide Libenzi
Date: Wed May 12 2004 - 14:52:06 EST
On Wed, 12 May 2004, Ingo Molnar wrote:
> * Jeff Garzik <jgarzik@xxxxxxxxx> wrote:
> > >Woah, that's new. And wrong. The code in include/asm-i386/param.h that
> > >says:
> > > # define JIFFIES_TO_MSEC(x) (x)
> > > # define MSEC_TO_JIFFIES(x) (x)
> > >
> > >Is not correct. Look at kernel/sched.c for verification of this :)
> > Yes, that is _massively_ broken.
> why is it wrong?
For HZ == 1000 it's fine, even if it'd better to explicitly make it HZ
dependent and let the compiler to discard them.
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