From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756252AbcCaLOq (ORCPT ); Thu, 31 Mar 2016 07:14:46 -0400 Received: from mx2.suse.de ([195.135.220.15]:53687 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753460AbcCaLOo (ORCPT ); Thu, 31 Mar 2016 07:14:44 -0400 Date: Thu, 31 Mar 2016 13:14:42 +0200 From: Petr Mladek To: Sergey Senozhatsky Cc: Andrew Morton , Jan Kara , Tejun Heo , Tetsuo Handa , linux-kernel@vger.kernel.org, Byungchul Park , Sergey Senozhatsky , Jan Kara Subject: Re: [RFC][PATCH v8 2/2] printk: Make wake_up_klogd_work_func() async Message-ID: <20160331111442.GC1023@pathway.suse.cz> References: <1458834203-3392-1-git-send-email-sergey.senozhatsky@gmail.com> <1458834203-3392-3-git-send-email-sergey.senozhatsky@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1458834203-3392-3-git-send-email-sergey.senozhatsky@gmail.com> 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 On Fri 2016-03-25 00:43:23, Sergey Senozhatsky wrote: > From: Jan Kara > > Offload printing of scheduler deferred messages from IRQ context > to a schedulable printing kthread, when possible (the same way we > do it in vprintk_emit()). Otherwise, the CPU can spend unbounded > amount of time doing printing in console_unlock() from IRQ. > > Signed-off-by: Jan Kara > Signed-off-by: Sergey Senozhatsky Nice change. Makes perfect sense. Reviewed-by: Petr Mladek Best Regards, Petr