On 8/17/20 12:52 PM, Matthew Wilcox (Oracle) wrote: > If we pass in an offset which is larger than PAGE_SIZE, then > page_is_mergeable() thinks it's not mergeable with the previous bio_vec, > leading to a large number of bio_vecs being used. Use a slightly more > obvious test that the two pages are compatible with each other. Applied, thanks. -- Jens Axboe