From patchwork Sun Sep 20 09:10:17 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Baolin Wang X-Patchwork-Id: 11787389 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 20D69618 for ; Sun, 20 Sep 2020 09:10:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0839F20EDD for ; Sun, 20 Sep 2020 09:10:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726293AbgITJKd (ORCPT ); Sun, 20 Sep 2020 05:10:33 -0400 Received: from out30-56.freemail.mail.aliyun.com ([115.124.30.56]:55548 "EHLO out30-56.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726247AbgITJKd (ORCPT ); Sun, 20 Sep 2020 05:10:33 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R171e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04426;MF=baolin.wang@linux.alibaba.com;NM=1;PH=DS;RN=7;SR=0;TI=SMTPD_---0U9TXAYI_1600593030; Received: from localhost(mailfrom:baolin.wang@linux.alibaba.com fp:SMTPD_---0U9TXAYI_1600593030) by smtp.aliyun-inc.com(127.0.0.1); Sun, 20 Sep 2020 17:10:31 +0800 From: Baolin Wang To: tj@kernel.org, axboe@kernel.dk Cc: baolin.wang@linux.alibaba.com, baolin.wang7@gmail.com, linux-block@vger.kernel.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/4] Some improvements for blk throttle Date: Sun, 20 Sep 2020 17:10:17 +0800 Message-Id: X-Mailer: git-send-email 1.8.3.1 Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Hi, This patch set did some improvements for blk throttle, please help to review. 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(-)