From patchwork Sun May 1 13:21:33 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: 1283 Return-Path: Delivered-To: unknown Received: from imap.gmail.com (74.125.159.109) by localhost6.localdomain6 with IMAP4-SSL; 08 Jun 2011 14:50:42 -0000 Delivered-To: patches@linaro.org Received: by 10.224.2.73 with SMTP id 9cs230891qai; Sun, 1 May 2011 06:22:32 -0700 (PDT) Received: by 10.236.184.73 with SMTP id r49mr8910986yhm.59.1304256151875; Sun, 01 May 2011 06:22:31 -0700 (PDT) Received: from e3.ny.us.ibm.com (e3.ny.us.ibm.com [32.97.182.143]) by mx.google.com with ESMTPS id d6si181343yhe.200.2011.05.01.06.22.30 (version=TLSv1/SSLv3 cipher=OTHER); Sun, 01 May 2011 06:22:30 -0700 (PDT) Received-SPF: pass (google.com: domain of paulmck@linux.vnet.ibm.com designates 32.97.182.143 as permitted sender) client-ip=32.97.182.143; Authentication-Results: mx.google.com; spf=pass (google.com: domain of paulmck@linux.vnet.ibm.com designates 32.97.182.143 as permitted sender) smtp.mail=paulmck@linux.vnet.ibm.com Received: from d01relay07.pok.ibm.com (d01relay07.pok.ibm.com [9.56.227.147]) by e3.ny.us.ibm.com (8.14.4/8.13.1) with ESMTP id p41D13BU027012 for ; Sun, 1 May 2011 09:01:03 -0400 Received: from d01av01.pok.ibm.com (d01av01.pok.ibm.com [9.56.224.215]) by d01relay07.pok.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id p41DMTi11208466 for ; Sun, 1 May 2011 09:22:29 -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 p41DMMcE020222 for ; Sun, 1 May 2011 09:22:28 -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 p41DMBnE019011; Sun, 1 May 2011 09:22:17 -0400 Received: by paulmck-ThinkPad-W500 (Postfix, from userid 1000) id 1318613F828; Sun, 1 May 2011 06:22:09 -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 53/86] net, rcu: convert call_rcu(free_dm_hw_stat) to kfree_rcu() Date: Sun, 1 May 2011 06:21:33 -0700 Message-Id: <1304256126-26015-53-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 free_dm_hw_stat() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(free_dm_hw_stat). Signed-off-by: Lai Jiangshan Acked-by: Neil Horman Acked-by: David S. Miller Signed-off-by: Paul E. McKenney --- net/core/drop_monitor.c | 12 ++---------- 1 files changed, 2 insertions(+), 10 deletions(-) diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c index 706502f..7f36b38 100644 --- a/net/core/drop_monitor.c +++ b/net/core/drop_monitor.c @@ -207,14 +207,6 @@ static void trace_napi_poll_hit(void *ignore, struct napi_struct *napi) rcu_read_unlock(); } - -static void free_dm_hw_stat(struct rcu_head *head) -{ - struct dm_hw_stat_delta *n; - n = container_of(head, struct dm_hw_stat_delta, rcu); - kfree(n); -} - static int set_all_monitor_traces(int state) { int rc = 0; @@ -245,7 +237,7 @@ static int set_all_monitor_traces(int state) list_for_each_entry_safe(new_stat, temp, &hw_stats_list, list) { if (new_stat->dev == NULL) { list_del_rcu(&new_stat->list); - call_rcu(&new_stat->rcu, free_dm_hw_stat); + kfree_rcu(new_stat, rcu); } } break; @@ -314,7 +306,7 @@ static int dropmon_net_event(struct notifier_block *ev_block, new_stat->dev = NULL; if (trace_state == TRACE_OFF) { list_del_rcu(&new_stat->list); - call_rcu(&new_stat->rcu, free_dm_hw_stat); + kfree_rcu(new_stat, rcu); break; } }