Re: [PATCH] /dev/mem validate mmap requests

[Hugh Dickins]

On Mon, 5 Dec 2005, Bjorn Helgaas wrote:
> Add a hook so architectures can validate /dev/mem mmap requests.

Not a comment on your patch at all, just an FYI in case you've missed
it, and in case it makes any difference to your ia64 needs.

A side-effect of 2.6.15-rc's PageReserved changes is that a user with
access to /dev/mem can now mmap any page of it, and see what's there
rather than zeroes, whether or not it has been marked PageReserved.

Hugh
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