From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932825AbcL0ORG (ORCPT ); Tue, 27 Dec 2016 09:17:06 -0500 Received: from mail-pg0-f68.google.com ([74.125.83.68]:33722 "EHLO mail-pg0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932742AbcL0OQs (ORCPT ); Tue, 27 Dec 2016 09:16:48 -0500 From: Sergey Senozhatsky To: Andrew Morton Cc: Petr Mladek , Linus Torvalds , Jan Kara , Tejun Heo , Calvin Owens , Steven Rostedt , Ingo Molnar , Peter Zijlstra , Andy Lutomirski , Peter Hurley , linux-kernel@vger.kernel.org, Sergey Senozhatsky , Sergey Senozhatsky Subject: [PATCHv7 1/8] printk: use vprintk_func in vprintk() Date: Tue, 27 Dec 2016 23:16:04 +0900 Message-Id: <20161227141611.940-2-sergey.senozhatsky@gmail.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20161227141611.940-1-sergey.senozhatsky@gmail.com> References: <20161227141611.940-1-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 Reviewed-by: Petr Mladek --- 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 6a7ebcb0bb6e..005f435271ca 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -1802,7 +1802,7 @@ 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); -- 2.11.0