On Mon, Jul 20, 2020 at 01:58:22PM +0200, Richard Weinberger wrote: > Hello Chrstoph, > > On Mon, Jul 20, 2020 at 9:53 AM Christoph Hellwig <hch@xxxxxx> wrote: > > > > Set up a readahead size by default. This changes behavior for mtd, > > ubifs, and vboxsf to actually enabled readahead, the lack of which > > very much looks like an oversight. > > UBIFS doesn't enable readahead on purpose, please see: > http://www.linux-mtd.infradead.org/doc/ubifs.html#L_readahead What about jffs2 and blk2mtd raw block devices?