From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752900AbaELGw2 (ORCPT ); Mon, 12 May 2014 02:52:28 -0400 Received: from cn.fujitsu.com ([59.151.112.132]:2376 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1751660AbaELGw1 (ORCPT ); Mon, 12 May 2014 02:52:27 -0400 X-IronPort-AV: E=Sophos;i="4.97,1033,1389715200"; d="scan'208";a="30389387" From: Lai Jiangshan To: CC: Tejun Heo , Lai Jiangshan Subject: [PATCH 00/10 V2] workqueue: async worker destruction and worker attaching/detaching Date: Mon, 12 May 2014 14:56:12 +0800 Message-ID: <1399877792-13046-1-git-send-email-laijs@cn.fujitsu.com> X-Mailer: git-send-email 1.7.4.4 In-Reply-To: <20140505150514.GI11231@htj.dyndns.org> References: <20140505150514.GI11231@htj.dyndns.org> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.167.226.103] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Patch1-4: async worker destruction Patch2 reduces the review burden. It will be easier to review the whole patchset if we know destroy_worker() is forced to destroy idle workers only. Patch5-10: worker attaching/detaching and simplify the workers management The code which attaches a worker to the pool and detaches a worker from the pool is unfolded in create_worker()/destroy_worker(). The patchset moves this attaching/detaching code out and wraps them. patch3-4 moves the detaching code out from destroy_worker(), and make manger_mutex only protects the detaching code only rather than protects the whole worker-destruction path. patch5-7 makes manger_mutex only protects the attaching code rather than the whole worker-creation path. patch8: rename manger_mutex to attach_mutex patch9-10: moves the attaching code out from create_worker() and use it for rescuer. Lai Jiangshan (10): workqueue: use manager lock only to protect worker_idr workqueue: destroy_worker() should destroy idle workers only workqueue: async worker destruction workqueue: destroy worker directly in the idle timeout handler workqueue: separate iteration role from worker_idr workqueue: convert worker_idr to worker_ida workqueue: narrow the protection range of manager_mutex workqueue: rename manager_mutex to attach_mutex workqueue: separate pool-attaching code out from create_worker() workqueue: use generic attach/detach routine for rescuers kernel/workqueue.c | 401 ++++++++++++++----------------------------- kernel/workqueue_internal.h | 1 + 2 files changed, 126 insertions(+), 276 deletions(-) -- 1.7.4.4