From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754141AbdLDNzp (ORCPT ); Mon, 4 Dec 2017 08:55:45 -0500 Received: from mail-pf0-f194.google.com ([209.85.192.194]:39461 "EHLO mail-pf0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754039AbdLDNzm (ORCPT ); Mon, 4 Dec 2017 08:55:42 -0500 X-Google-Smtp-Source: AGs4zMZL6YQOIFQ0KfeaeHV1QGd5o4FD8L2SBZArHdyjkjxaBdH3h8tzqyNe82Ylf98GMpNKLruGuQ== From: Sergey Senozhatsky To: Steven Rostedt , Petr Mladek Cc: Jan Kara , Andrew Morton , Peter Zijlstra , Rafael Wysocki , Pavel Machek , Tetsuo Handa , Tejun Heo , linux-kernel@vger.kernel.org, Sergey Senozhatsky , Sergey Senozhatsky Subject: [PATCH 4/4] printk: add task name and CPU to console messages Date: Mon, 4 Dec 2017 22:53:14 +0900 Message-Id: <20171204135314.9122-5-sergey.senozhatsky@gmail.com> X-Mailer: git-send-email 2.15.1 In-Reply-To: <20171204135314.9122-1-sergey.senozhatsky@gmail.com> References: <20171204134825.7822-1-sergey.senozhatsky@gmail.com> <20171204135314.9122-1-sergey.senozhatsky@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org *** FOR TESTING *** Add current->comm/smp_processor_id() prefix to every console line. Signed-off-by: Sergey Senozhatsky --- kernel/printk/printk.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index a34a839e6045..a36cc6b9148e 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -1540,6 +1540,9 @@ static size_t print_prefix(const struct printk_log *msg, bool syslog, char *buf) } } + if (buf) + len += sprintf(buf, "{%s/%d}", current->comm, + smp_processor_id()); len += print_time(msg->ts_nsec, buf ? buf + len : NULL); return len; } -- 2.15.1