On Thu, Dec 12, 2019 at 12:01:29PM -0700, Jens Axboe wrote: > @@ -2234,7 +2250,15 @@ static ssize_t generic_file_buffered_read(struct kiocb *iocb, > error = -ENOMEM; > goto out; > } > - error = add_to_page_cache_lru(page, mapping, index, [...] > + error = add_to_page_cache(page, mapping, index, > mapping_gfp_constraint(mapping, GFP_KERNEL)); Surely a mistake? (and does this mistake invalidate the testing you did earlier?)