From patchwork Thu Sep 22 11:35:53 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Kuai X-Patchwork-Id: 12984987 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 12D25C6FA82 for ; Thu, 22 Sep 2022 11:25:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231519AbiIVLZR (ORCPT ); Thu, 22 Sep 2022 07:25:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46018 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231474AbiIVLZO (ORCPT ); Thu, 22 Sep 2022 07:25:14 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7F7E3ABF20; Thu, 22 Sep 2022 04:25:13 -0700 (PDT) Received: from dggemv704-chm.china.huawei.com (unknown [172.30.72.55]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4MYCWJ5mXhzMpSn; Thu, 22 Sep 2022 19:20:28 +0800 (CST) Received: from kwepemm600009.china.huawei.com (7.193.23.164) by dggemv704-chm.china.huawei.com (10.3.19.47) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Thu, 22 Sep 2022 19:25:11 +0800 Received: from huawei.com (10.175.127.227) by kwepemm600009.china.huawei.com (7.193.23.164) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Thu, 22 Sep 2022 19:25:10 +0800 From: Yu Kuai To: , , CC: , , , , Subject: [PATCH v3 0/5] blk-wbt: simple improvment to enable wbt correctly Date: Thu, 22 Sep 2022 19:35:53 +0800 Message-ID: <20220922113558.1085314-1-yukuai3@huawei.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 X-Originating-IP: [10.175.127.227] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To kwepemm600009.china.huawei.com (7.193.23.164) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org changes in v3: - instead of check elevator name, add a flag in elevator_queue, as suggested by Christoph. - add patch 3 and patch 5 to this patchset. changes in v2: - define new api if wbt config is not enabled in patch 1. Yu Kuai (5): wbt: don't show valid wbt_lat_usec in sysfs while wbt is disabled elevator: add new field flags in struct elevator_queue block, bfq: don't disable wbt if CONFIG_BFQ_GROUP_IOSCHED is disabled blk-wbt: don't enable throttling if default elevator is bfq elevator: remove redundant code in elv_unregister_queue() block/bfq-iosched.c | 6 +++++- block/blk-sysfs.c | 9 ++++++++- block/blk-wbt.c | 15 ++++++++++++++- block/blk-wbt.h | 5 +++++ block/elevator.c | 8 ++------ block/elevator.h | 5 ++++- 6 files changed, 38 insertions(+), 10 deletions(-)