Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755050AbdLODeO (ORCPT ); Thu, 14 Dec 2017 22:34:14 -0500 Received: from cmccmta2.chinamobile.com ([221.176.66.80]:19328 "EHLO cmccmta2.chinamobile.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754944AbdLODde (ORCPT ); Thu, 14 Dec 2017 22:33:34 -0500 X-RM-TRANSID: 2ee65a33428c347-32089 X-RM-TagInfo: emlType=0 X-RM-SPAM-FLAG: 00000000 X-RM-TRANSID: 2ee65a334282b14-d361d From: Yaowei Bai To: akpm@linux-foundation.org, rdunlap@infradead.org, rientjes@google.com, joe@perches.com Cc: linux-kernel@vger.kernel.org, baiyaowei@cmss.chinamobile.com Subject: [PATCH 6/7] kernel/mutex: mutex_is_locked can be boolean Date: Thu, 14 Dec 2017 22:33:18 -0500 Message-Id: <1513308799-19232-7-git-send-email-baiyaowei@cmss.chinamobile.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1513308799-19232-1-git-send-email-baiyaowei@cmss.chinamobile.com> References: <1513308799-19232-1-git-send-email-baiyaowei@cmss.chinamobile.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 893 Lines: 31 This patch makes mutex_is_locked return bool due to this particular function only using either one or zero as its return value. No functional change. Signed-off-by: Yaowei Bai --- include/linux/mutex.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/mutex.h b/include/linux/mutex.h index 153274f..f25c134 100644 --- a/include/linux/mutex.h +++ b/include/linux/mutex.h @@ -138,9 +138,9 @@ extern void __mutex_init(struct mutex *lock, const char *name, * mutex_is_locked - is the mutex locked * @lock: the mutex to be queried * - * Returns 1 if the mutex is locked, 0 if unlocked. + * Returns true if the mutex is locked, false if unlocked. */ -static inline int mutex_is_locked(struct mutex *lock) +static inline bool mutex_is_locked(struct mutex *lock) { /* * XXX think about spin_is_locked -- 1.8.3.1