On Thu, Mar 19, 2026 at 04:34:04PM +0000, Lorenzo Stoakes (Oracle) wrote:

On Thu, Mar 19, 2026 at 11:24:27AM -0400, Gregory Price wrote:

quoted

On Thu, Mar 19, 2026 at 09:19:40AM +0100, David Hildenbrand (Arm) wrote:

quoted

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.

That is quite the HOTTAKE young Gregory!

(It seems my pun crimes are continuing)

:P - it's just more config cruft that always catches me cross-platform
when i poke around in dax and hotplug.  It'll be nice to get less
automated reports from CI lol

~Gregory