Re: [PATCH v5 00/12] mm, swap: swap table phase IV: unify allocation and reduce static metadata
From: Andrew Morton
Date: Mon May 18 2026 - 17:51:47 EST
On Tue, 19 May 2026 02:11:35 +0800 Kairui Song <ryncsn@xxxxxxxxx> wrote:
> On Sun, May 17, 2026 at 11:40 PM Kairui Song via B4 Relay
> <devnull+kasong.tencent.com@xxxxxxxxxx> wrote:
> >
> > From: Kairui Song <kasong@xxxxxxxxxxx>
> >
> > This series unifies the allocation and charging of anon and shmem swap
> > in folios, provides better synchronization, consolidates the metadata
> > management, hence dropping the static array and map, and improves the
> > performance. The static metadata overhead is now close to zero, and
> > workload performance is slightly improved.
> >
>
> Sashiko only gave a warning this time (and it's false positive):
Sashiko behaved unusually. "Note: The format of this report is altered
due to recitation restrictions. Direct quotes from the original patch
are omitted, and a free-form summary is provided instead.".
https://sashiko.dev/#/patchset/20260517-swap-table-p4-v5-0-88ae43e064c7@xxxxxxxxxxx
Roman, what's that all about?
Thanks, I'll add this to mm-new for some testing. Review is thin at
this time, but we have a large and dedicated band of swap maintainers,
so I'm sure that will change ;)
I understand that there are some architectural/directional differences
amongst the team (or there used to be), so please don't be shy about
weighing in if you think we should be taking things in a different
direction.