From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757899AbcJ0Pvc (ORCPT ); Thu, 27 Oct 2016 11:51:32 -0400 Received: from mail-pf0-f193.google.com ([209.85.192.193]:33946 "EHLO mail-pf0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756447AbcJ0Pv0 (ORCPT ); Thu, 27 Oct 2016 11:51:26 -0400 From: Sergey Senozhatsky To: Petr Mladek , Andrew Morton Cc: Jan Kara , Tejun Heo , Calvin Owens , Thomas Gleixner , Mel Gorman , Steven Rostedt , Ingo Molnar , Peter Zijlstra , Laura Abbott , Andy Lutomirski , Linus Torvalds , Kees Cook , linux-kernel@vger.kernel.org, Sergey Senozhatsky , Sergey Senozhatsky Subject: [RFC][PATCHv4 1/6] printk: use vprintk_func in vprintk() Date: Fri, 28 Oct 2016 00:49:28 +0900 Message-Id: <20161027154933.1211-2-sergey.senozhatsky@gmail.com> X-Mailer: git-send-email 2.10.1.502.g6598894 In-Reply-To: <20161027154933.1211-1-sergey.senozhatsky@gmail.com> References: <20161027154933.1211-1-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 Reviewed-by: Steven Rostedt --- 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 de08fc9..539f31b 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -1921,7 +1921,7 @@ 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); -- 2.10.1.502.g6598894