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.
