From patchwork Sat Feb 16 08:19:55 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wei Yongjun X-Patchwork-Id: 1043390 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=huawei.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 441jPk6Hw2z9s9G for ; Sat, 16 Feb 2019 19:06:18 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729699AbfBPIGQ (ORCPT ); Sat, 16 Feb 2019 03:06:16 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:3741 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727970AbfBPIGP (ORCPT ); Sat, 16 Feb 2019 03:06:15 -0500 Received: from DGGEMS407-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 59CEA16132CF5A3C178D; Sat, 16 Feb 2019 16:06:08 +0800 (CST) Received: from localhost.localdomain.localdomain (10.175.113.25) by DGGEMS407-HUB.china.huawei.com (10.3.19.207) with Microsoft SMTP Server id 14.3.408.0; Sat, 16 Feb 2019 16:06:02 +0800 From: Wei Yongjun To: Jamal Hadi Salim , Cong Wang , Jiri Pirko CC: Wei Yongjun , , Subject: [PATCH] net: sched: using kfree_rcu() to simplify the code Date: Sat, 16 Feb 2019 08:19:55 +0000 Message-ID: <20190216081955.93243-1-weiyongjun1@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: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The callback function of call_rcu() just calls a kfree(), so we can use kfree_rcu() instead of call_rcu() + callback function. Signed-off-by: Wei Yongjun --- net/sched/sch_api.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c index 7e4d1cc..53b25b8 100644 --- a/net/sched/sch_api.c +++ b/net/sched/sch_api.c @@ -526,11 +526,6 @@ static struct qdisc_size_table *qdisc_get_stab(struct nlattr *opt, return stab; } -static void stab_kfree_rcu(struct rcu_head *head) -{ - kfree(container_of(head, struct qdisc_size_table, rcu)); -} - void qdisc_put_stab(struct qdisc_size_table *tab) { if (!tab) @@ -538,7 +533,7 @@ void qdisc_put_stab(struct qdisc_size_table *tab) if (--tab->refcnt == 0) { list_del(&tab->list); - call_rcu(&tab->rcu, stab_kfree_rcu); + kfree_rcu(tab, rcu); } } EXPORT_SYMBOL(qdisc_put_stab);