From patchwork Sun May 1 13:21:21 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: 1309 Return-Path: Delivered-To: unknown Received: from imap.gmail.com (74.125.159.109) by localhost6.localdomain6 with IMAP4-SSL; 08 Jun 2011 14:50:49 -0000 Delivered-To: patches@linaro.org Received: by 10.224.2.73 with SMTP id 9cs230928qai; Sun, 1 May 2011 06:22:53 -0700 (PDT) Received: by 10.236.75.194 with SMTP id z42mr8524474yhd.485.1304256173706; Sun, 01 May 2011 06:22:53 -0700 (PDT) Received: from e4.ny.us.ibm.com (e4.ny.us.ibm.com [32.97.182.144]) by mx.google.com with ESMTPS id h63si14546705yhm.107.2011.05.01.06.22.53 (version=TLSv1/SSLv3 cipher=OTHER); Sun, 01 May 2011 06:22:53 -0700 (PDT) Received-SPF: pass (google.com: domain of paulmck@linux.vnet.ibm.com designates 32.97.182.144 as permitted sender) client-ip=32.97.182.144; Authentication-Results: mx.google.com; spf=pass (google.com: domain of paulmck@linux.vnet.ibm.com designates 32.97.182.144 as permitted sender) smtp.mail=paulmck@linux.vnet.ibm.com Received: from d01relay02.pok.ibm.com (d01relay02.pok.ibm.com [9.56.227.234]) by e4.ny.us.ibm.com (8.14.4/8.13.1) with ESMTP id p41D2LCf008313 for ; Sun, 1 May 2011 09:02:21 -0400 Received: from d01av01.pok.ibm.com (d01av01.pok.ibm.com [9.56.224.215]) by d01relay02.pok.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id p41DMQEH413348 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 p41DMIv9019866 for ; Sun, 1 May 2011 09:22:25 -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 p41DMDwQ019178; Sun, 1 May 2011 09:22:15 -0400 Received: by paulmck-ThinkPad-W500 (Postfix, from userid 1000) id C43DF13F81C; 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 41/86] net, rcu: convert call_rcu(listeners_free_rcu) to kfree_rcu() Date: Sun, 1 May 2011 06:21:21 -0700 Message-Id: <1304256126-26015-41-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 The rcu callback listeners_free_rcu() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(listeners_free_rcu). Signed-off-by: Lai Jiangshan Acked-by: David S. Miller Signed-off-by: Paul E. McKenney --- net/netlink/af_netlink.c | 8 +------- 1 files changed, 1 insertions(+), 7 deletions(-) diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index c8f35b5..5fe4f3b 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -1566,12 +1566,6 @@ netlink_kernel_release(struct sock *sk) } EXPORT_SYMBOL(netlink_kernel_release); - -static void listeners_free_rcu(struct rcu_head *head) -{ - kfree(container_of(head, struct listeners, rcu)); -} - int __netlink_change_ngroups(struct sock *sk, unsigned int groups) { struct listeners *new, *old; @@ -1588,7 +1582,7 @@ int __netlink_change_ngroups(struct sock *sk, unsigned int groups) memcpy(new->masks, old->masks, NLGRPSZ(tbl->groups)); rcu_assign_pointer(tbl->listeners, new); - call_rcu(&old->rcu, listeners_free_rcu); + kfree_rcu(old, rcu); } tbl->groups = groups;