Re: [PATCH 1/1] mm: swap: add nr argument in swapcache_prepare and swapcache_clear to support large folios

[David Hildenbrand]

On 30.07.24 09:13, Barry Song wrote:
> From: Barry Song <v-songbaohua@xxxxxxxx>
>
> Right now, swapcache_prepare() and swapcache_clear() supports one entry
> only, to support large folios, we need to handle multiple swap entries.
>
> To optimize stack usage, we iterate twice in __swap_duplicate(): the
> first time to verify that all entries are valid, and the second time
> to apply the modifications to the entries.
>
> Currently, we're using nr=1 for the existing users.
>
> Reviewed-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
> Signed-off-by: Barry Song <v-songbaohua@xxxxxxxx>
> ---


Acked-by: David Hildenbrand <david@xxxxxxxxxx>

--
Cheers,

David / dhildenb