Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754042Ab2H0TEg (ORCPT ); Mon, 27 Aug 2012 15:04:36 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:59322 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753602Ab2H0TEf (ORCPT ); Mon, 27 Aug 2012 15:04:35 -0400 Date: Mon, 27 Aug 2012 12:04:31 -0700 From: Tejun Heo To: Lai Jiangshan Cc: linux-kernel@vger.kernel.org Subject: Re: [PATCH 4/7] workqueue: single pass rebind_workers Message-ID: <20120827190431.GB13094@dhcp-172-17-108-109.mtv.corp.google.com> References: <1346090307-3020-1-git-send-email-laijs@cn.fujitsu.com> <1346090307-3020-5-git-send-email-laijs@cn.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1346090307-3020-5-git-send-email-laijs@cn.fujitsu.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 755 Lines: 23 Hello, Lai. On Tue, Aug 28, 2012 at 01:58:24AM +0800, Lai Jiangshan wrote: > busy_worker_rebind_fn() can't return until all idle workers are rebound, > the code of busy_worker_rebind_fn() ensure this. > > So we can change the order of the code of rebind_workers(), > and make it a single pass do the rebind_workers(). > > It makes the code much clean and better readability. I can't see how this could be correct. What prevents busy worker from grabbing manager_mutex before idle one? Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/