Re: [v3 PATCH] mm/memory.c: skip spurious TLB flush for retried page fault

From: Will Deacon
Date: Wed Aug 19 2020 - 04:27:55 EST


On Tue, Aug 18, 2020 at 12:01:43PM -0700, Linus Torvalds wrote:
> On Mon, Aug 17, 2020 at 2:04 PM Yang Shi <shy828301@xxxxxxxxx> wrote:
> >
> > We could just skip the spurious TLB flush to mitigate the regression.
>
> Ok, this patch I will apply.

Cheers.

> I still hope that arm64 fixes (maybe already fixed) their spurious TLB
> function, and I think we should rename it to make sure everybody
> understands it's local, but in the meantime this patch hides the
> regression and isn't wrong.

I'll look at it for 5.10.

Will