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[2620:137:e000::1:20]) by mx.google.com with ESMTP id k2-20020a633d02000000b0053ef51d3fa8si857982pga.401.2023.05.23.07.19.49; Tue, 23 May 2023 07:20:07 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20221208 header.b=VcmTmmhL; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237300AbjEWOMu (ORCPT + 99 others); Tue, 23 May 2023 10:12:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47498 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237229AbjEWOM1 (ORCPT ); Tue, 23 May 2023 10:12:27 -0400 Received: from mail-pf1-x42d.google.com (mail-pf1-x42d.google.com [IPv6:2607:f8b0:4864:20::42d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 473601BB for ; Tue, 23 May 2023 07:12:07 -0700 (PDT) Received: by mail-pf1-x42d.google.com with SMTP id d2e1a72fcca58-64d5b4c3ffeso2166892b3a.2 for ; Tue, 23 May 2023 07:12:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1684851127; x=1687443127; h=references:in-reply-to:message-id:date:subject:cc:to:from:from:to :cc:subject:date:message-id:reply-to; bh=t+G/28MNCXuidnG5AulwelJkxMgzzIsBpPPnC7MtAJ0=; b=VcmTmmhLHRf5xTFBu/ax9SQtxd4sBBDUmL1wGFSR6wYdpRNmAKr/nSwS7AMN5Xlruw +vgu79pnc7vta1MuLSlLL4S7ZLAIpvHqr/P1+BhFKJU/CBV8vrL4wG9mZDuGwBNf3dn6 qCNg32U62qRcBu90k/7pDMVuNeFkNg6P4mRMGXVVjRiPkoroAnOB6m6tdQ7NIaRNwv26 I9yUhLSyr1vRVVZBGIA9w2Iw9herzhcp0JfX4R5UgdTrl6BhGxtLoMsyQ2vsPbvjqfzE gytwgqhCL3ptEkHmcCliNUWGUf2FQj9MOnuewcdMOiqWf7O6VMoYOv93XesnWaGr1XDN MgTw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684851127; x=1687443127; h=references:in-reply-to:message-id:date:subject:cc:to:from :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=t+G/28MNCXuidnG5AulwelJkxMgzzIsBpPPnC7MtAJ0=; b=FjO6Wk3J8JCFW0pW7va4mYulOpaRxD7L2ewmMB0s9vhduG361wl+2LIFgcLEyDru3z PUU68I6tku69QEfkk5YZ4zkGqWKc0wKx3WhghONmBSCi5tM6JYzJBPCpsDd2G1qZeCuA 9FX3yEsIEnQlOMQC4GQtJHrOtXqKN2L/42g7prA5qpeOdQZU/+pYAbfIVVHrH+z3/MGK LBqTUfWdFXNAYN/UhZo9h+mwX7UNk25xSesUnxc7ftDP8e9wg+eCiwv+yy3iUye11U9f X+6Cj924qzpEmuLLGarI/WVkyW2yVSbE2Ysi1La3CaW3lgSI0QXK9Qylbr/R78G128mO uS1Q== X-Gm-Message-State: AC+VfDxcC/1ndC5yfqHY2TQLgyX3H64SpqJsqkuzREgP3N3QbZUNDbU9 vLWKcplWcDi+HTlIfkX4YgU= X-Received: by 2002:a17:902:e842:b0:1ac:63ac:109d with SMTP id t2-20020a170902e84200b001ac63ac109dmr19122118plg.15.1684851126669; Tue, 23 May 2023 07:12:06 -0700 (PDT) Received: from localhost.localdomain ([124.126.151.211]) by smtp.gmail.com with ESMTPSA id jl1-20020a170903134100b00194caf3e975sm6789013plb.208.2023.05.23.07.12.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 May 2023 07:12:06 -0700 (PDT) From: Zqiang To: tj@kernel.org, jiangshanlai@gmail.com, naresh.kamboju@linaro.org, qiang.zhang1211@gmail.com Cc: linux-kernel@vger.kernel.org Subject: [PATCH] workqueue: Disable check CPU-hogging work when set wq_cpu_intensive_thresh_us=0 Date: Tue, 23 May 2023 22:09:42 +0800 Message-Id: <20230523140942.18679-2-qiang.zhang1211@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230523140942.18679-1-qiang.zhang1211@gmail.com> References: <20230523140942.18679-1-qiang.zhang1211@gmail.com> X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1766694959260946650?= X-GMAIL-MSGID: =?utf-8?q?1766694959260946650?= This commit disable check CPU-hogging work in wq_worker_tick(), when set the 'workqueue.cpu_intensive_thresh_us=0' in bootparams. Signed-off-by: Zqiang --- kernel/workqueue.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/workqueue.c b/kernel/workqueue.c index e548b2eda12a..ccbc9f2dafa6 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -1145,6 +1145,7 @@ void wq_worker_tick(struct task_struct *task) * CPU_INTENSIVE to avoid stalling other concurrency-managed work items. */ if ((worker->flags & WORKER_NOT_RUNNING) || worker->sleeping || + !wq_cpu_intensive_thresh_us || worker->task->se.sum_exec_runtime - worker->current_at < wq_cpu_intensive_thresh_us * NSEC_PER_USEC) return;