Re: [PATCH] report user-readable fixmap area in /proc/PID/maps

[Andrew Morton]

Roland McGrath <roland@xxxxxxxxxx> wrote:
>
> This patch makes /proc/PID/maps report the range from FIXADDR_USER_START to
>  FIXADDR_USER_END as a final pseudo-vma.

This special-casing, and the special-casing in get_user_pages() would go
away if each process had a real VMA for the fixmap area inserted into its
VMA tree.

Remind me again why we cannot do that?
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