On Mon, Jul 20, 2020 at 2:37 PM Artem Bityutskiy <dedekind1@xxxxxxxxx> wrote: > > On Mon, 2020-07-20 at 14:07 +0200, Christoph Hellwig wrote: > > What about jffs2 and blk2mtd raw block devices? I don't worry much about blk2mtd. > If my memory serves me correctly JFFS2 did not mind readahead. This covers my knowledge too. I fear enabling readahead on JFFS2 will cause performance issues, this filesystem is mostly used on small and slow NOR devices. -- Thanks, //richard