Re: [PATCH 34/48] shmem: Convert part of shmem_undo_range() to use a folio

[Christoph Hellwig <hch@xxxxxxxxxxxxx>]

On Wed, Dec 08, 2021 at 04:22:42AM +0000, Matthew Wilcox (Oracle) wrote:
> find_lock_entries() never returns tail pages.  We cannot use page_folio()
> here as the pagevec may also contain swap entries, so simply cast.

Ugg.  At least this seems to be temporary, so:

Reviewed-by: Christoph Hellwig <hch@xxxxxx>