From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.7 required=3.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,FREEMAIL_REPLYTO_END_DIGIT, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A8935C433E0 for ; Mon, 20 Jul 2020 12:37:19 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 775992070A for ; Mon, 20 Jul 2020 12:37:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 775992070A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id D9F646B0002; Mon, 20 Jul 2020 08:37:18 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id D4F166B0005; Mon, 20 Jul 2020 08:37:18 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C65EC6B0006; Mon, 20 Jul 2020 08:37:18 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0099.hostedemail.com [216.40.44.99]) by kanga.kvack.org (Postfix) with ESMTP id AE9386B0002 for ; Mon, 20 Jul 2020 08:37:18 -0400 (EDT) Received: from smtpin07.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 3B7583994EBC for ; Mon, 20 Jul 2020 12:37:18 +0000 (UTC) X-FDA: 77058404556.07.moon86_53075f526f24 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin07.hostedemail.com (Postfix) with ESMTP id 13B2918233312 for ; Mon, 20 Jul 2020 12:37:18 +0000 (UTC) X-HE-Tag: moon86_53075f526f24 X-Filterd-Recvd-Size: 2548 Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by imf23.hostedemail.com (Postfix) with ESMTP for ; Mon, 20 Jul 2020 12:37:17 +0000 (UTC) IronPort-SDR: x9qpXjBRkuwAFUOj2oOM0WakCxEALJj78gOUzHmWLhemTXlxkIXf0EDk1WNv10FVPQs83CbHVj aAJjC/xk7yXQ== X-IronPort-AV: E=McAfee;i="6000,8403,9687"; a="211443037" X-IronPort-AV: E=Sophos;i="5.75,375,1589266800"; d="scan'208";a="211443037" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Jul 2020 05:37:15 -0700 IronPort-SDR: 7deXD1XW+A1Hva+QiCJdaK4EIpnjzCtylsXLbkZMEWcV3EA4SSFqyWHsLulKcoOBu1VF1DCfC/ jsIW9xbLx4ZA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,375,1589266800"; d="scan'208";a="487228228" Received: from linux.intel.com ([10.54.29.200]) by fmsmga006.fm.intel.com with ESMTP; 20 Jul 2020 05:37:15 -0700 Received: from abityuts-desk1.fi.intel.com (abityuts-desk1.fi.intel.com [10.237.72.186]) by linux.intel.com (Postfix) with ESMTP id A1092580299; Mon, 20 Jul 2020 05:37:11 -0700 (PDT) Message-ID: <2827a5dbd94bc5c2c1706a6074d9a9a32a590feb.camel@gmail.com> Subject: Re: [PATCH 04/14] bdi: initialize ->ra_pages in bdi_init From: Artem Bityutskiy Reply-To: dedekind1@gmail.com To: Christoph Hellwig , Richard Weinberger Cc: 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 Date: Mon, 20 Jul 2020 15:37:10 +0300 In-Reply-To: <20200720120734.GA29061@lst.de> References: <20200720075148.172156-1-hch@lst.de> <20200720075148.172156-5-hch@lst.de> <20200720120734.GA29061@lst.de> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.32.5 (3.32.5-1.fc30) MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 13B2918233312 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam04 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, 2020-07-20 at 14:07 +0200, Christoph Hellwig wrote: > What about jffs2 and blk2mtd raw block devices? If my memory serves me correctly JFFS2 did not mind readahead.