Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754547Ab2K3Wzv (ORCPT ); Fri, 30 Nov 2012 17:55:51 -0500 Received: from mail-da0-f46.google.com ([209.85.210.46]:62181 "EHLO mail-da0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752197Ab2K3Wzu (ORCPT ); Fri, 30 Nov 2012 17:55:50 -0500 Date: Fri, 30 Nov 2012 14:55:45 -0800 From: Tejun Heo To: Zlatko Calusic Cc: linux-kernel@vger.kernel.org Subject: Re: High context switch rate, ksoftirqd's chewing cpu Message-ID: <20121130225545.GC6021@htj.dyndns.org> References: <50A78AA9.5040904@iskon.hr> <20121130225200.GB6021@htj.dyndns.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20121130225200.GB6021@htj.dyndns.org> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 782 Lines: 25 Hello, again. Can you please try this patch? Thanks! diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 042d221..26368ef 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -1477,7 +1477,10 @@ bool mod_delayed_work_on(int cpu, struct workqueue_struct *wq, } while (unlikely(ret == -EAGAIN)); if (likely(ret >= 0)) { - __queue_delayed_work(cpu, wq, dwork, delay); + if (!delay) + __queue_work(cpu, wq, &dwork->work); + else + __queue_delayed_work(cpu, wq, dwork, delay); local_irq_restore(flags); } -- 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/