Re: [PATCH 2/4 v4] kernel/fork.c: avoid division by zero
From: Peter Zijlstra
Date: Mon Feb 23 2015 - 16:10:23 EST
On Mon, Feb 23, 2015 at 09:14:35PM +0100, Heinrich Schuchardt wrote:
> With 32-bit calculus there is no solution which delivers valid results
> for all possible combinations of the parameters.
So I can't help but be bugged by this (my problem I know); calculus is
the mathematics of change; its differential equations and integrals.
What we do here is modular arithmetic on a commutative ring.
Please use calculation as you do here:
> Hence a 64-bit calculation can be used as solution.
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