Re: [PATCH v2 3/3] KVM: remove dummy pages

From: Takuya Yoshikawa
Date: Thu Jul 26 2012 - 05:20:57 EST


On Thu, 26 Jul 2012 11:56:15 +0300
Avi Kivity <avi@xxxxxxxxxx> wrote:

> Since my comments are better done as a separate patch, I applied all
> three patches. Thanks!

Is this patch really safe for all architectures?

IS_ERR_VALUE() casts -MAX_ERRNO to unsigned long and then does comparison.
Isn't it possible to conflict with valid pfns?

What are the underlying assumptions?

Takuya
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