Re: [PATCH RFC] fs: erofs: support PG_mappedtodisk flag for folios with zero-filled

[Gao Xiang]

On 2024/10/17 15:58, Gao Xiang wrote:
> Hi Barry,
>
> On 2024/10/17 15:43, Barry Song wrote:
> > From: Barry Song <v-songbaohua@xxxxxxxx>
> >
> > When a folio has never been zero-filled, mark it as mappedtodisk
> > to allow other software components to recognize and utilize the
> > flag.
> >
> > Signed-off-by: Barry Song <v-songbaohua@xxxxxxxx>
>
> Thanks for this!
>
> It looks good to me as an improvement as long as PG_mappedtodisk
> is long-term lived and useful to users.
>
> Reviewed-by: Gao Xiang <hsiangkao@xxxxxxxxxxxxxxxxx>

BTW, I wonder if iomap supports this since uncompressed EROFS
relies on iomap paths...

Thanks,
Gao Xiang