From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pg1-f175.google.com (mail-pg1-f175.google.com [209.85.215.175]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 88D1642AA9 for ; Fri, 21 Jun 2024 07:29:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.175 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718954983; cv=none; b=k6yFWfCW2xpVGDaD7vX5Ra5gK2uB3xSOySIEEXHgzbHemkg1Ug9b0PEMoehdq9Hafr1VhBke08jHPNjARK4IwksG+OQf+VsUmpjdYRvnS5E3baiRgwo9muDrzTp3o7qIAPlCGCi1Ip0QVGU1gZhRE+/l6Qg0wJLlhmv1TY2IoCM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718954983; c=relaxed/simple; bh=z/+kbpIF5LNZ7J3ty6ZU61tMvYLBU+K3nYLRk7lV960=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=o6NMPq/nGDlg3ipOc5qDykRY9E2/Q2qciagwOkba4eXBsrdCHn8c0VumXQA3ts1B0NmxPpyXb1+8jTYiv7q8azPj3qOmlpuYDrjgNJGqa4i1vrkEpWDIwV+iwkpLCQDL1gqYy/2/cFbQmXM0JMi2l2ciaQr97ScuivekCEyxjPM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=lkhrwpF+; arc=none smtp.client-ip=209.85.215.175 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="lkhrwpF+" Received: by mail-pg1-f175.google.com with SMTP id 41be03b00d2f7-70df213542bso1211461a12.3 for ; Fri, 21 Jun 2024 00:29:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1718954981; x=1719559781; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=xrByOuSSdJJfOiuZoGI/GCFoQPmJLRboTp7l6nd23AE=; b=lkhrwpF+wMLzWodDMH46boisIzdlMAw63/smpMCDIBJm9q6jDpYrogRANxkl/QjV+M NKqh2I84ksP3d0J5dYDryzs58/B/gJ5nDleJJqPSjzx5R4/BvP+qmbA7ykA34CQXkpDr N+wh8unfHDMeMXKaz232QdGfEjGurq4xe0LiN06VgIDavUV1ZNtD3YN1A9n/IPNke9Jd 1NK1KO8QpRH4nRY3GBQnPRgM5AspuTOPUf3clhkvtS2+7i+xB/dRwzwD7K+6wlyY1D7w u+c3sUgE8nnnFWtBfGbxXkkqSxx1Vx+TNedb2TKz+JGqo5ma/xW9J5S9XeE70ds/aKBY 9H7w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1718954981; x=1719559781; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=xrByOuSSdJJfOiuZoGI/GCFoQPmJLRboTp7l6nd23AE=; b=fpPLJWZ6UMuoAQpdqUNPWEW0nNaHakOqoiZlo1CvyIvTGmDw//60L59qUiOlb3sQEZ Jdgc/mDAKoigZ8Y/ilGXt9xT9J+SW2QbOQ/5u8flrKI/+JqLZWE43lPb3u4HrYBz1sSk 6ZEFjw2pLKVb0+9EbbfWXQsgx3mE7TWy9bEM7XvPDbLOJXUzi184AOdY7GtW5EpmkoZy Ue8rngVQjXQ3oGOcYXz9YV4OTb8EnzIwUXYSKJJ8PWbyZlESZlo4cpg6pFnrouA1AWdX NTmDDBoS/ENx00Dbeu535Wx57Tug8Uf1ckqg9zSu0LCt79trKarqpnRrtJDq8qxOTfIW W8cA== X-Gm-Message-State: AOJu0YzF5KnHTVNrRTsUecQCNyS3CIhy/1kSiIQ0ycaMdFC7i7+Y45+R 0WUFinpxzfIRx6Kn6pP+FJegVrFMCCRYkzO2vdw71nbwkBKBUs//XavfkQ== X-Google-Smtp-Source: AGHT+IH36ZSbgJoRUq8AQuSj05yz3pJQ27pCiatM/yWTzUS0uoW8mKFWZ6DWCfOkTPDTUm1rUANGag== X-Received: by 2002:a17:90a:e00e:b0:2c0:17b4:85aa with SMTP id 98e67ed59e1d1-2c7b5c9f60amr7290865a91.22.1718954981074; Fri, 21 Jun 2024 00:29:41 -0700 (PDT) Received: from localhost ([47.88.5.130]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2c819db94f7sm881929a91.35.2024.06.21.00.29.40 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 21 Jun 2024 00:29:40 -0700 (PDT) From: Lai Jiangshan To: linux-kernel@vger.kernel.org Cc: Lai Jiangshan , Tejun Heo , Valentin Schneider Subject: [PATCH 0/4] workqueue: Destroy workers in idle_cull_fn(). Date: Fri, 21 Jun 2024 15:32:21 +0800 Message-Id: <20240621073225.3600-1-jiangshanlai@gmail.com> X-Mailer: git-send-email 2.19.1.6.gb485710b Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Lai Jiangshan After e02b93124855("workqueue: Unbind kworkers before sending them to exit()"), the code to kick off the destruction of workers is now in a process context (idle_cull_fn()), more destruction code can also be moved to the said process context to simplify the destroying. Cc: Tejun Heo Cc: Valentin Schneider Lai Jiangshan (4): workqueue: Reap workers via kthread_stop() and remove detach_completion workqueue: Don't bind the rescuer in the last working cpu workqueue: Detach workers directly in idle_cull_fn() workqueue: Remove useless pool->dying_workers kernel/workqueue.c | 87 +++++++++++++++++++++------------------------- 1 file changed, 40 insertions(+), 47 deletions(-) -- 2.19.1.6.gb485710b