Re: [PATCH v2 0/9] support large folio swap-out and swap-in for shmem

[Baolin Wang]

On 2024/6/19 04:05, Andrew Morton wrote:
> On Tue, 18 Jun 2024 14:54:12 +0800 Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx> wrote:
>
> > Shmem will support large folio allocation [1] [2] to get a better performance,
> > however, the memory reclaim still splits the precious large folios when trying
> > to swap-out shmem, which may lead to the memory fragmentation issue and can not
> > take advantage of the large folio for shmeme.
> >
> > Moreover, the swap code already supports for swapping out large folio without
> > split, and large folio swap-in[3] series is queued into mm-unstable branch.
> > Hence this patch set also supports the large folio swap-out and swap-in for
> > shmem.
>
> I'll add this to mm-unstable for some exposure, but I wonder how much
> testing it will have recieved by the time the next merge window opens?

Thanks Andrew. I am fine with this series going to 6.12 if you are 
concerned about insufficient testing (and let's also wait for Hugh's 
comments). Since we (Daniel and I) have some follow-up patches that will 
rely on this swap series, hope this series can be tested as extensively 
as possible to ensure its stability in the mm branch.