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

Gregory Price
2026-03-20T19:34:34Z

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:
> > 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.
>
> 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