Received: by 2002:a05:6a10:f347:0:0:0:0 with SMTP id d7csp6546203pxu; Thu, 24 Dec 2020 05:27:14 -0800 (PST) X-Google-Smtp-Source: ABdhPJzIQSLwggxUEgIhba3JNK0SiixyPri+eTpq5olPlUUMK/7XCYnc8Ke8cZsqD1/tRXLAhzVC X-Received: by 2002:aa7:c98d:: with SMTP id c13mr29604873edt.188.1608816434208; Thu, 24 Dec 2020 05:27:14 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1608816434; cv=none; d=google.com; s=arc-20160816; b=vxIpsvcG+DK6kWONxTVD+ubWm4yk6J175eJWKNF14u8XaEUjGZtbqYkPuJLMnLH2nL 8OqzMbt2VKorn7ImrZ3kzmjnSb1qau/0xUbDYeH6UgSIMhUFXB7NjqjPxD0yI5b564Qk gO7xYe9uWYh0i2YFbNC0JrMmGGeLue+WW2qiXHDa4QU7+UdlFO7uuZ6sh3XwWGL2hOoQ hbjKdlMmxkuqVC7t6ttqoNcEIkJDpRZtRes6PMmCgt8ytAkphd2aMKlCbnud2CcxndOb 1dcJBplyT/O4oGqiD5xY9UziKiRERdebf90dfx8XNm1mdRfFo2yaexHgWJj57coql9Wa YtIQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=rfKWjIMvNbC38s6zyasHEuJdlOkMDZ6NvHxm1lRFcK8=; b=09TrPszTQ6w7+qnd/jL1mLig9ifiaobeMGSANwg2xqAYROTWZLDKPorERrdOC0VleA 16t1VAa5QR8kozBz81jXU5YBEXlPe3Wx/G7n+XVNZvw1tHVua6JajAiz+eYfSaqjC6hq DyKdlU4pngojDAzOu2znrd6f0LIpzq3CSkvDRAn6jdmKC9z565viCmwwo2MtjNbO+3fP gGiQcawfpaAclgUeufJgJ5eH7RtoA+vQbGi5aOZg1CQeNOZt2+agbEHMHLFrJa7/VJfU Hud9Sj7WNpWZPgemlHbwUbJtk2zBtb50ydhp/Qlsuba8aMD1c0wcjmln2KsaEeKOa1Qp LVtw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id de26si15100065edb.570.2020.12.24.05.26.52; Thu, 24 Dec 2020 05:27:14 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728912AbgLXNYs (ORCPT + 99 others); Thu, 24 Dec 2020 08:24:48 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:9990 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728033AbgLXNYr (ORCPT ); Thu, 24 Dec 2020 08:24:47 -0500 Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4D1rP500t7zhx4X; Thu, 24 Dec 2020 21:23:20 +0800 (CST) Received: from ubuntu.network (10.175.138.68) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.498.0; Thu, 24 Dec 2020 21:23:54 +0800 From: Zheng Yongjun To: , , , CC: Zheng Yongjun Subject: [PATCH v2 -next] md: bcache: use DEFINE_MUTEX() for mutex lock Date: Thu, 24 Dec 2020 21:24:31 +0800 Message-ID: <20201224132431.31180-1-zhengyongjun3@huawei.com> X-Mailer: git-send-email 2.22.0 MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.138.68] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org mutex lock can be initialized automatically with DEFINE_MUTEX() rather than explicitly calling mutex_init(). Signed-off-by: Zheng Yongjun --- drivers/md/bcache/super.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index 46a00134a36a..963d62a15f37 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -40,7 +40,7 @@ static const char invalid_uuid[] = { }; static struct kobject *bcache_kobj; -struct mutex bch_register_lock; +DEFINE_MUTEX(bch_register_lock); bool bcache_is_reboot; LIST_HEAD(bch_cache_sets); static LIST_HEAD(uncached_devices); @@ -2832,7 +2832,6 @@ static int __init bcache_init(void) check_module_parameters(); - mutex_init(&bch_register_lock); init_waitqueue_head(&unregister_wait); register_reboot_notifier(&reboot); -- 2.22.0