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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_SANE_1 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 A90F2C4727C for ; Tue, 29 Sep 2020 14:52:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0CF6920757 for ; Tue, 29 Sep 2020 14:52:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731287AbgI2Owl (ORCPT ); Tue, 29 Sep 2020 10:52:41 -0400 Received: from out30-132.freemail.mail.aliyun.com ([115.124.30.132]:51481 "EHLO out30-132.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728627AbgI2Owk (ORCPT ); Tue, 29 Sep 2020 10:52:40 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R141e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04357;MF=baolin.wang@linux.alibaba.com;NM=1;PH=DS;RN=6;SR=0;TI=SMTPD_---0UAUcfiw_1601391152; Received: from 30.39.52.131(mailfrom:baolin.wang@linux.alibaba.com fp:SMTPD_---0UAUcfiw_1601391152) by smtp.aliyun-inc.com(127.0.0.1); Tue, 29 Sep 2020 22:52:33 +0800 Subject: Re: [PATCH 0/4] Some improvements for blk throttle To: tj@kernel.org, axboe@kernel.dk Cc: baolin.wang7@gmail.com, linux-block@vger.kernel.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org References: From: Baolin Wang Message-ID: Date: Tue, 29 Sep 2020 22:52:36 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.3.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=gbk; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Jens, > Hi, > > This patch set did some improvements for blk throttle, please > help to review. Thanks. Do you have any comments for this patch set? Thanks. > > Baolin Wang (4): > blk-throttle: Remove a meaningless parameter for > throtl_downgrade_state() > blk-throttle: Avoid getting the current time if tg->last_finish_time > is 0 > blk-throttle: Avoid tracking latency if low limit is invalid > blk-throttle: Fix IO hang for a corner case > > block/blk-throttle.c | 26 ++++++++++++++++---------- > 1 file changed, 16 insertions(+), 10 deletions(-) >