[PATCH 2/2] powerpc/strict_rwx: fixup region splitting

[Michael Ellerman]

Balbir Singh <bsingharora at gmail.com> writes:

> We were aggressive with splitting regions and missed the case
> when _stext and __init_begin completely overlap addr and addr+mapping.
>
> This patch fixes that case and allows us to keep the largest possible
> mapping through the overlap. The patch also simplies the check
> into a function

Please do the fix in one patch, which we can backport if necessary, and
then move it into a function in a separate patch.

cheers