From patchwork Thu Sep 29 09:06:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zeng Heng X-Patchwork-Id: 12993701 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1AFE7C04A95 for ; Thu, 29 Sep 2022 08:51:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233931AbiI2IvE (ORCPT ); Thu, 29 Sep 2022 04:51:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32938 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233404AbiI2Iuy (ORCPT ); Thu, 29 Sep 2022 04:50:54 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 302EE5E326 for ; Thu, 29 Sep 2022 01:50:52 -0700 (PDT) Received: from dggpemm500022.china.huawei.com (unknown [172.30.72.56]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4MdRp139SvzpVRp; Thu, 29 Sep 2022 16:47:53 +0800 (CST) Received: from huawei.com (10.175.103.91) by dggpemm500022.china.huawei.com (7.185.36.162) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Thu, 29 Sep 2022 16:50:50 +0800 From: Zeng Heng To: , , , , CC: , , , Subject: [PATCH -next] fs: cifs: initialize spinlock in data section Date: Thu, 29 Sep 2022 17:06:55 +0800 Message-ID: <20220929090655.2200986-1-zengheng4@huawei.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [10.175.103.91] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpemm500022.china.huawei.com (7.185.36.162) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org Use DEFINE_SPINLOCK to initialize spinlock, which saves calling spin_lock_init additionally. There are no logic changes. Signed-off-by: Zeng Heng --- fs/cifs/cifsfs.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 8042d7280dec..dda2fe6648fc 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -76,7 +76,7 @@ unsigned int sign_CIFS_PDUs = 1; unsigned int GlobalCurrentXid; /* protected by GlobalMid_Sem */ unsigned int GlobalTotalActiveXid; /* prot by GlobalMid_Sem */ unsigned int GlobalMaxActiveXid; /* prot by GlobalMid_Sem */ -spinlock_t GlobalMid_Lock; /* protects above & list operations on midQ entries */ +DEFINE_SPINLOCK(GlobalMid_Lock); /* protects above & list operations on midQ entries */ /* * Global counters, updated atomically @@ -96,7 +96,7 @@ atomic_t total_buf_alloc_count; atomic_t total_small_buf_alloc_count; #endif/* STATS2 */ struct list_head cifs_tcp_ses_list; -spinlock_t cifs_tcp_ses_lock; +DEFINE_SPINLOCK(cifs_tcp_ses_lock); static const struct super_operations cifs_super_ops; unsigned int CIFSMaxBufSize = CIFS_MAX_MSGSIZE; module_param(CIFSMaxBufSize, uint, 0444); @@ -1615,8 +1615,6 @@ init_cifs(void) GlobalCurrentXid = 0; GlobalTotalActiveXid = 0; GlobalMaxActiveXid = 0; - spin_lock_init(&cifs_tcp_ses_lock); - spin_lock_init(&GlobalMid_Lock); cifs_lock_secret = get_random_u32();