Please check memblock related patches
[PATCH 1/4] memblock: Fix big size with find_region()
[PATCH -v5 2/4] x86, memblock: Fix crashkernel allocation
[PATCH 3/4] x86, memblock: Remove __memblock_x86_find_in_range_size()
[PATCH 4/4] x86, mm, memblock, 32bit: Make add_highpages honor early reserved ranges
first one should get into core/memblock branch, and others should be in x86/mm/memeblock branch
Thanks
Yinghai Lu
--