From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934444AbcI0OZ4 (ORCPT ); Tue, 27 Sep 2016 10:25:56 -0400 Received: from mail-pa0-f66.google.com ([209.85.220.66]:33017 "EHLO mail-pa0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933674AbcI0OXk (ORCPT ); Tue, 27 Sep 2016 10:23:40 -0400 From: Sergey Senozhatsky To: Petr Mladek , Jan Kara Cc: Andrew Morton , Tejun Heo , Calvin Owens , linux-kernel@vger.kernel.org, Sergey Senozhatsky , Sergey Senozhatsky Subject: [RFC][PATCH 1/7] printk: use vprintk_func in vprintk() Date: Tue, 27 Sep 2016 23:22:31 +0900 Message-Id: <20160927142237.5539-2-sergey.senozhatsky@gmail.com> X-Mailer: git-send-email 2.10.0.372.g6fe1b14 In-Reply-To: <20160927142237.5539-1-sergey.senozhatsky@gmail.com> References: <20160927142237.5539-1-sergey.senozhatsky@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org vprintk(), just like printk(), better be using per-cpu printk_func instead of direct vprintk_emit() call. Just in case if vprintk() will ever be called from NMI, or from any other context that can deadlock in printk(). Signed-off-by: Sergey Senozhatsky --- kernel/printk/printk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index 8019cc0..c7ffbef 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -1922,7 +1922,7 @@ EXPORT_SYMBOL(vprintk_emit); asmlinkage int vprintk(const char *fmt, va_list args) { - return vprintk_emit(0, LOGLEVEL_DEFAULT, NULL, 0, fmt, args); + return vprintk_func(fmt, args); } EXPORT_SYMBOL(vprintk); -- 2.10.0.372.g6fe1b14