From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932387Ab3CLGva (ORCPT ); Tue, 12 Mar 2013 02:51:30 -0400 Received: from szxga02-in.huawei.com ([119.145.14.65]:43642 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932269Ab3CLGv3 (ORCPT ); Tue, 12 Mar 2013 02:51:29 -0400 Message-ID: <513ED052.7080907@huawei.com> Date: Tue, 12 Mar 2013 14:50:58 +0800 From: Li Zefan User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:17.0) Gecko/20130307 Thunderbird/17.0.4 MIME-Version: 1.0 To: Tejun Heo CC: LKML , Cgroups Subject: [PATCH 5/8] cgroup: remove useless code in cgroup_write_event_control() References: <513ED010.5060906@huawei.com> In-Reply-To: <513ED010.5060906@huawei.com> Content-Type: text/plain; charset="GB2312" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.135.68.215] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org eventfd_poll() never returns POLLHUP. Signed-off-by: Li Zefan --- kernel/cgroup.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 58ae040..3206137 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -3938,12 +3938,6 @@ static int cgroup_write_event_control(struct cgroup *cgrp, struct cftype *cft, if (ret) goto fail; - if (efile->f_op->poll(efile, &event->pt) & POLLHUP) { - event->cft->unregister_event(cgrp, event->cft, event->eventfd); - ret = 0; - goto fail; - } - /* * Events should be removed after rmdir of cgroup directory, but before * destroying subsystem state objects. Let's take reference to cgroup -- 1.8.0.2