Re: Linux 2.6.20-rc7

From: Andrew Morton
Date: Wed Jan 31 2007 - 19:30:35 EST


On Wed, 31 Jan 2007 16:19:06 -0800 (PST)
Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:

> I should either revert that commit or just check for "free_pages" being
> negative. The latter, in many ways, is probably better, because generally
> we simply should never work with negative numbers in the kernel, so when
> something potentially goes negative, we're probably just better off always
> testing it explicitly anyway.
>
> Nick, Andrew, any preferences?

It would be cleaner to check for negativity, but note that we keep
subtracting stuff from free_pages in the later loop, so we'd need to check
there as well.

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