From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756364AbcCCCWq (ORCPT ); Wed, 2 Mar 2016 21:22:46 -0500 Received: from mail.kernel.org ([198.145.29.136]:46866 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755775AbcCCCWA (ORCPT ); Wed, 2 Mar 2016 21:22:00 -0500 Message-Id: <20160303022155.706225735@goodmis.org> User-Agent: quilt/0.61-1 Date: Wed, 02 Mar 2016 21:21:36 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org, linux-rt-users Cc: Thomas Gleixner , Carsten Emde , Sebastian Andrzej Siewior , John Kacur , Paul Gortmaker Subject: [PATCH RT 3/7] kernel: softirq: unlock with irqs on References: <20160303022133.583693153@goodmis.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline; filename=0003-kernel-softirq-unlock-with-irqs-on.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.2.77-rt112-rc1 stable review patch. If anyone has any objections, please let me know. ------------------ From: Sebastian Andrzej Siewior We unlock the lock while the interrupts are off. This isn't a problem now but will get because the migrate_disable() + enable are not symmetrical in regard to the status of interrupts. Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Steven Rostedt --- kernel/softirq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/softirq.c b/kernel/softirq.c index b7d68392e833..61860daa4098 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -561,10 +561,10 @@ static int __thread_do_softirq(int cpu) */ if (local_softirq_pending()) __do_softirq_common(cpu >= 0); - local_unlock(local_softirq_lock); unpin_current_cpu(); - preempt_disable(); local_irq_enable(); + local_unlock(local_softirq_lock); + preempt_disable(); return 0; } -- 2.7.0