Re: [RFC PATCH] mm/rmap: use release ordering for small-folio mapcount removal

[Pranith Kumar]

Hi Lorenzo,

On Wed, Nov 4, 2026 at 5:55 AM Lorenzo Stoakes (ARM) <ljs@xxxxxxxxxx> wrote:
>
> On Wed, Nov 04, 2026 at 02:37:39PM +0100, David Hildenbrand (Arm) wrote:
>
> I mean 1.54%, theoretically is even less convincing for me :)

With reducing the strength of one barrier, I think this is a non-trivial gain.

>
>
> In any case for something touching a sensitive memory barrier operation to have
> a stronger argument put forward for release ordering being suitable than simply
> stating it's fine in the commit message and updating a comment.
>

Can you please explain what information is missing? I think the commit
message has all the details of why release is sufficient instead of
full barrier.

Thanks,
--
Pranith