On 21.01.23 07:50, Christoph Hellwig wrote: > To prepare for pending changes drop the optimization to only look up > csums once per bio that is submitted from the iomap layer. In the > short run this does cause additional lookups for fragmented direct > reads, but later in the series, the bio based lookup will be used on > the entire bio submitted from iomap, restoring the old behavior > in common code. I was wondering how that would impact performance, when we do a csum tree lookup on every DIO read until I realized you already accounted for that in the commit message. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@xxxxxxx>
