Re: [PATCH v4 13/13] x86/folio_zero_user: Add multi-page clearing

[Peter Zijlstra]

On Mon, Jun 16, 2025 at 07:44:13AM -0700, Dave Hansen wrote:

> To me, that's deserving of an ARCH_HAS_FOO bit that we can set on the
> x86 side that then cajoles the core mm/ code to use the fancy new
> clear_pages_resched() implementation.

Note that we should only set this bit with either full or lazy
preemption selected. Haven't checked the patch-set to see if that
constraint is already taken care of.