From patchwork Mon May 23 08:26:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Kuai X-Patchwork-Id: 12858570 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 E1A44C433FE for ; Mon, 23 May 2022 08:13:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231451AbiEWINC (ORCPT ); Mon, 23 May 2022 04:13:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43926 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231360AbiEWINB (ORCPT ); Mon, 23 May 2022 04:13:01 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 40805A475; Mon, 23 May 2022 01:12:59 -0700 (PDT) Received: from kwepemi100009.china.huawei.com (unknown [172.30.72.55]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4L696842p5zjX1W; Mon, 23 May 2022 16:12:00 +0800 (CST) Received: from kwepemm600009.china.huawei.com (7.193.23.164) by kwepemi100009.china.huawei.com (7.221.188.242) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Mon, 23 May 2022 16:12:57 +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 15.1.2375.24; Mon, 23 May 2022 16:12:56 +0800 From: Yu Kuai To: , , , CC: , , , , Subject: [PATCH -next v4 0/4] bugfix for blk-throttle Date: Mon, 23 May 2022 16:26:29 +0800 Message-ID: <20220523082633.2324980-1-yukuai3@huawei.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 X-Originating-IP: [10.175.127.227] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) 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 v4: - add reviewed-by tag for patch 1 - add patch 2,3 - use a different way to fix io hung in patch 4 Changes in v3: - fix a check in patch 1 - fix link err in patch 2 on 32-bit platform - handle overflow in patch 2 Changes in v2: - use a new solution suggested by Ming - change the title of patch 1 - add patch 2 Patch 1 fix that blk-throttle can't work if multiple bios are throttle, Patch 2 fix overflow while calculating wait time Patch 3,4 fix io hung due to configuration updates. Previous version: v1: https://lore.kernel.org/all/20220517134909.2910251-1-yukuai3@huawei.com/ v2: https://lore.kernel.org/all/20220518072751.1188163-1-yukuai3@huawei.com/ v3: https://lore.kernel.org/all/20220519085811.879097-1-yukuai3@huawei.com/ Yu Kuai (4): blk-throttle: fix that io throttle can only work for single bio blk-throttle: prevent overflow while calculating wait time blk-throttle: factor out code to calculate ios/bytes_allowed blk-throttle: fix io hung due to config updates block/blk-throttle.c | 121 ++++++++++++++++++++++++++++++++----------- block/blk-throttle.h | 4 ++ 2 files changed, 94 insertions(+), 31 deletions(-)