Re: [RFC PATCH v5 4/4] mm/shmem: split large folios only on -E2BIG

[David Hildenbrand (Arm)]

On 7/30/26 14:23, Xueyuan Chen wrote:
> shmem_writeout() currently splits a large folio on every
> folio_alloc_swap() failure. With the refined return-value contract, only
> -E2BIG indicates that splitting might allow smaller folios to be swapped
> out.
> 
> Enter the split fallback only for -E2BIG. For -ENOSPC and -ENOMEM,
> redirty and reactivate the folio as before.
> 
> Suggested-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
> Reviewed-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
> Signed-off-by: Xueyuan Chen <xueyuan.chen21@xxxxxxxxx>
> ---

Acked-by: David Hildenbrand (Arm) <david@xxxxxxxxxx>

-- 
Cheers,

David