On Wed, Dec 08, 2021 at 04:22:52AM +0000, Matthew Wilcox (Oracle) wrote: > We still only operate on a single page of data at a time due to using > kmap(). A more complex implementation would work on each page in a folio, > but it's not clear that such a complex implementation would be worthwhile. It sounds simple enough to be worthwhile. But no need to do it here: Reviewed-by: Christoph Hellwig <hch@xxxxxx>