[PATCH 0/2] mm: Better handling of adding new regions

[Zhang Boyang]

This patchset is splitted from the patch at
https://lists.gnu.org/archive/html/grub-devel/2022-10/msg00077.html

Sending as new patchset since some part of previous patchset have been
merged.

Changes:
Renamed `guarantee` to `bound`.
New region size is now adjuested before comparing to GRUB_MM_HEAP_GROW.
(i.e. GRUB_MM_HEAP_GROW now doesn't take management cost into account)

Best Regards,
Zhang Boyang