From mboxrd@z Thu Jan 1 00:00:00 1970 From: Richard Weinberger Subject: Re: [PATCH 04/14] bdi: initialize ->ra_pages in bdi_init Date: Mon, 20 Jul 2020 23:27:57 +0200 Message-ID: References: <20200720075148.172156-1-hch@lst.de> <20200720075148.172156-5-hch@lst.de> <20200720120734.GA29061@lst.de> <2827a5dbd94bc5c2c1706a6074d9a9a32a590feb.camel@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Return-path: In-Reply-To: <2827a5dbd94bc5c2c1706a6074d9a9a32a590feb.camel@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: Artem Bityutskiy Cc: Christoph Hellwig , Jens Axboe , linux-raid@vger.kernel.org, Hans de Goede , Richard Weinberger , LKML , linux-block@vger.kernel.org, Song Liu , device-mapper development , linux-mtd@lists.infradead.org, linux-mm@kvack.org, linux-fsdevel , cgroups mailinglist , drbd-dev@lists.linbit.com List-Id: dm-devel.ids On Mon, Jul 20, 2020 at 2:37 PM Artem Bityutskiy 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