Re: [PATCH 1/2] mm: remove CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE

Gregory Price
2026-03-19T15:24:39Z

On Thu, Mar 19, 2026 at 09:19:40AM +0100, David Hildenbrand (Arm) wrote:
> All architectures that select CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE also
> select CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG. So we can just remove
> CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE.
>
> For CONFIG_MIGRATION, make it depend on CONFIG_MEMORY_HOTREMOVE instead,
> and make CONFIG_MEMORY_HOTREMOVE select CONFIG_MIGRATION (just like
> CONFIG_CMA and CONFIG_COMPACTION already do).
>
> We'll clean up CONFIG_MIGRATION next.
>
> Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>

HOTREMOVE has long been a thorn in my side, I appreciate you cleaning
this up.

Reviewed-by: Gregory Price <gourry@gourry.net>

~Gregory