From patchwork Sat Jul 25 08:56:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qinglang Miao X-Patchwork-Id: 11684901 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7D92D912 for ; Sat, 25 Jul 2020 08:53:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6E69A206D8 for ; Sat, 25 Jul 2020 08:53:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726701AbgGYIxZ (ORCPT ); Sat, 25 Jul 2020 04:53:25 -0400 Received: from szxga07-in.huawei.com ([45.249.212.35]:56608 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726613AbgGYIxZ (ORCPT ); Sat, 25 Jul 2020 04:53:25 -0400 Received: from DGGEMS404-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 077BA79EE19677F73A12; Sat, 25 Jul 2020 16:53:22 +0800 (CST) Received: from localhost.localdomain.localdomain (10.175.113.25) by DGGEMS404-HUB.china.huawei.com (10.3.19.204) with Microsoft SMTP Server id 14.3.487.0; Sat, 25 Jul 2020 16:53:17 +0800 From: Qinglang Miao To: "J. Bruce Fields" , Chuck Lever , Greg Kroah-Hartman CC: , Subject: [PATCH -next] nfsd: use DEFINE_SPINLOCK() for spinlock Date: Sat, 25 Jul 2020 16:56:42 +0800 Message-ID: <20200725085642.98356-1-miaoqinglang@huawei.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-CFilter-Loop: Reflected Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org nfsd_drc_lock can be initialized automatically with DEFINE_SPINLOCK() rather than explicitly calling spin_lock_init(). Signed-off-by: Qinglang Miao --- fs/nfsd/nfssvc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c index b603dfcdd..20f0a27fe 100644 --- a/fs/nfsd/nfssvc.c +++ b/fs/nfsd/nfssvc.c @@ -88,7 +88,7 @@ DEFINE_MUTEX(nfsd_mutex); * version 4.1 DRC caches. * nfsd_drc_pages_used tracks the current version 4.1 DRC memory usage. */ -spinlock_t nfsd_drc_lock; +DEFINE_SPINLOCK(nfsd_drc_lock); unsigned long nfsd_drc_max_mem; unsigned long nfsd_drc_mem_used; @@ -568,7 +568,6 @@ static void set_max_drc(void) nfsd_drc_max_mem = (nr_free_buffer_pages() >> NFSD_DRC_SIZE_SHIFT) * PAGE_SIZE; nfsd_drc_mem_used = 0; - spin_lock_init(&nfsd_drc_lock); dprintk("%s nfsd_drc_max_mem %lu \n", __func__, nfsd_drc_max_mem); }