2024-01-15 07:55:57

by Byungchul Park

Subject: Re: [v4 2/3] mm: Defer TLB flush by keeping both src and dst folios at migration

On Thu, Nov 09, 2023 at 02:36:01PM +0000, Matthew Wilcox wrote:
> On Thu, Nov 09, 2023 at 01:59:07PM +0900, Byungchul Park wrote:
> > +++ b/include/linux/page-flags.h
> > @@ -136,6 +136,7 @@ enum pageflags {
> > PG_arch_2,
> > PG_arch_3,
> > #endif
> > + PG_migrc, /* Page is under migrc's control */
> > __NR_PAGEFLAGS,
>
> Yeah; no. We're out of page flags. And CXL is insufficiently

I won't use an additional page flag any more.

Thanks.
Byungchul