[PATCH v2] erofs: enable large folios for iomap mode

[Chao Yu]

On 2022/11/30 14:04, Jingbo Xu wrote:
> Enable large folios for iomap mode.  Then the readahead routine will
> pass down large folios containing multiple pages.
> 
> Let's enable this for non-compressed format for now, until the
> compression part supports large folios later.
> 
> When large folios supported, the iomap routine will allocate iomap_page
> for each large folio and thus we need iomap_release_folio() and
> iomap_invalidate_folio() to free iomap_page when these folios get
> recalimed or invalidated.
> 
> Signed-off-by: Jingbo Xu <jefflexu at linux.alibaba.com>

Reviewed-by: Chao Yu <chao at kernel.org>

Thanks,