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=-3.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 DF9B9C433E0 for ; Wed, 27 May 2020 05:26:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ADF54208DB for ; Wed, 27 May 2020 05:26:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="Gx+Qc/da" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728621AbgE0F0D (ORCPT ); Wed, 27 May 2020 01:26:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44612 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728269AbgE0FYa (ORCPT ); Wed, 27 May 2020 01:24:30 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 89E78C061A0F; Tue, 26 May 2020 22:24:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: MIME-Version:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:In-Reply-To:References; bh=dJGZntVcW6cIG2lSncQfYFsGYe54mFNTI2kksX7wjkw=; b=Gx+Qc/daipt8RPO+r8id9gztxi Vteb8LMs4zXEDORmD+fyEMjSsBt6uIsIbBcQcQMCHQfx5ZPk130XPqxuL5xoG7ulKVYOEhpHkYHuv 5hl1LMsAij9x/e5CnfRgBhxh/kO5GfiHa4AYylNh6rKP/x0SsOQf1sWZn/gOaO6QLBgkTG+JXvCfX 8nUyJBg0eUXIjVyli3n2Lq0k1k22bkKOiap1xPNR5nAGhYxfB8RkqLZa43VhL6ewW5QDaIztVrsop rLrrKolV0WGsf2AaRGcZxXm3hNXXjPDL9E+Z8Q4wFj54mCUj31zq4i/8zwKN5vBJiM6dpmRG4CNGA ZYjXVKcQ==; Received: from [2001:4bb8:18c:5da7:8164:affc:3c20:853d] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jdoY9-0000me-A3; Wed, 27 May 2020 05:24:21 +0000 From: Christoph Hellwig To: Jens Axboe Cc: Konstantin Khlebnikov , Minchan Kim , Nitin Gupta , dm-devel@redhat.com, linux-block@vger.kernel.org, drbd-dev@lists.linbit.com, linux-bcache@vger.kernel.org, linux-nvdimm@lists.01.org, linux-kernel@vger.kernel.org Subject: block I/O accounting improvements v2 Date: Wed, 27 May 2020 07:24:03 +0200 Message-Id: <20200527052419.403583-1-hch@lst.de> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Jens, they series contains various improvement for block I/O accounting. The first bunch of patches switch the bio based drivers to better accounting helpers compared to the current mess. The end contains a fix and various performanc improvements. Most of this comes from a series Konstantin sent a few weeks ago, rebased on changes that landed in your tree since and my change to always use the percpu version of the disk stats. Changes since v1: - add an ifdef CONFIG_BLOCK to work around the sad state of our headers - add reviewed-by tags to all patches