From patchwork Sun May 1 13:21:25 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Paul E. McKenney" X-Patchwork-Id: 1270 Return-Path: Delivered-To: unknown Received: from imap.gmail.com (74.125.159.109) by localhost6.localdomain6 with IMAP4-SSL; 08 Jun 2011 14:50:39 -0000 Delivered-To: patches@linaro.org Received: by 10.224.2.73 with SMTP id 9cs230875qai; Sun, 1 May 2011 06:22:27 -0700 (PDT) Received: by 10.146.61.37 with SMTP id j37mr5834068yaa.34.1304256147215; Sun, 01 May 2011 06:22:27 -0700 (PDT) Received: from e6.ny.us.ibm.com (e6.ny.us.ibm.com [32.97.182.146]) by mx.google.com with ESMTPS id c26si14567554anc.37.2011.05.01.06.22.27 (version=TLSv1/SSLv3 cipher=OTHER); Sun, 01 May 2011 06:22:27 -0700 (PDT) Received-SPF: pass (google.com: domain of paulmck@linux.vnet.ibm.com designates 32.97.182.146 as permitted sender) client-ip=32.97.182.146; Authentication-Results: mx.google.com; spf=pass (google.com: domain of paulmck@linux.vnet.ibm.com designates 32.97.182.146 as permitted sender) smtp.mail=paulmck@linux.vnet.ibm.com Received: from d01relay03.pok.ibm.com (d01relay03.pok.ibm.com [9.56.227.235]) by e6.ny.us.ibm.com (8.14.4/8.13.1) with ESMTP id p41CwDlk010602 for ; Sun, 1 May 2011 08:58:13 -0400 Received: from d01av01.pok.ibm.com (d01av01.pok.ibm.com [9.56.224.215]) by d01relay03.pok.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id p41DMQo5087282 for ; Sun, 1 May 2011 09:22:26 -0400 Received: from d01av01.pok.ibm.com (loopback [127.0.0.1]) by d01av01.pok.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id p41DMKb5020029 for ; Sun, 1 May 2011 09:22:26 -0400 Received: from paulmck-ThinkPad-W500 (sig-9-65-224-93.mts.ibm.com [9.65.224.93]) by d01av01.pok.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with ESMTP id p41DMDpo019206; Sun, 1 May 2011 09:22:16 -0400 Received: by paulmck-ThinkPad-W500 (Postfix, from userid 1000) id D988E13F820; Sun, 1 May 2011 06:22:08 -0700 (PDT) From: "Paul E. McKenney" To: linux-kernel@vger.kernel.org Cc: mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@polymtl.ca, josh@joshtriplett.org, niv@us.ibm.com, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, Valdis.Kletnieks@vt.edu, dhowells@redhat.com, eric.dumazet@gmail.com, darren@dvhart.com, patches@linaro.org, "Paul E. McKenney" Subject: [PATCH tip/core/rcu 45/86] net, act_police, rcu: remove rcu_barrier() Date: Sun, 1 May 2011 06:21:25 -0700 Message-Id: <1304256126-26015-45-git-send-email-paulmck@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.3.2 In-Reply-To: <20110501132142.GA25494@linux.vnet.ibm.com> References: <20110501132142.GA25494@linux.vnet.ibm.com> From: Lai Jiangshan There is no callback of this module maybe queued since we use kfree_rcu(), we can safely remove the rcu_barrier(). Signed-off-by: Lai Jiangshan Acked-by: David S. Miller Signed-off-by: Paul E. McKenney --- net/sched/act_police.c | 1 - 1 files changed, 0 insertions(+), 1 deletions(-) diff --git a/net/sched/act_police.c b/net/sched/act_police.c index d6bcd64..b3b9b32 100644 --- a/net/sched/act_police.c +++ b/net/sched/act_police.c @@ -396,7 +396,6 @@ static void __exit police_cleanup_module(void) { tcf_unregister_action(&act_police_ops); - rcu_barrier(); /* Wait for completion of call_rcu()'s (tcf_police_free_rcu) */ } module_init(police_init_module);