From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx111.postini.com [74.125.245.111]) by kanga.kvack.org (Postfix) with SMTP id 8418D8D0001 for ; Fri, 11 May 2012 05:47:20 -0400 (EDT) Received: from m1.gw.fujitsu.co.jp (unknown [10.0.50.71]) by fgwmail5.fujitsu.co.jp (Postfix) with ESMTP id 2536B3EE0BD for ; Fri, 11 May 2012 18:47:19 +0900 (JST) Received: from smail (m1 [127.0.0.1]) by outgoing.m1.gw.fujitsu.co.jp (Postfix) with ESMTP id 0781E45DE7E for ; Fri, 11 May 2012 18:47:19 +0900 (JST) Received: from s1.gw.fujitsu.co.jp (s1.gw.fujitsu.co.jp [10.0.50.91]) by m1.gw.fujitsu.co.jp (Postfix) with ESMTP id E496545DE6A for ; Fri, 11 May 2012 18:47:18 +0900 (JST) Received: from s1.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s1.gw.fujitsu.co.jp (Postfix) with ESMTP id D4B4DE08003 for ; Fri, 11 May 2012 18:47:18 +0900 (JST) Received: from ml14.s.css.fujitsu.com (ml14.s.css.fujitsu.com [10.240.81.134]) by s1.gw.fujitsu.co.jp (Postfix) with ESMTP id 8831A1DB8042 for ; Fri, 11 May 2012 18:47:18 +0900 (JST) Message-ID: <4FACDFAE.5050808@jp.fujitsu.com> Date: Fri, 11 May 2012 18:45:18 +0900 From: KAMEZAWA Hiroyuki MIME-Version: 1.0 Subject: [PATCH v3 1/6] memcg: fix error code in hugetlb_force_memcg_empty() References: <4FACDED0.3020400@jp.fujitsu.com> In-Reply-To: <4FACDED0.3020400@jp.fujitsu.com> Content-Type: text/plain; charset=ISO-2022-JP Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: "linux-mm@kvack.org" Cc: "cgroups@vger.kernel.org" , Michal Hocko , Johannes Weiner , Frederic Weisbecker , Han Ying , Glauber Costa , Tejun Heo , "Aneesh Kumar K.V" , Andrew Morton , Hiroyuki Kamezawa , Linux Kernel The conditions are handled as -EBUSY, _now_. Reviewed-by: Aneesh Kumar K.V Signed-off-by: KAMEZAWA Hiroyuki --- mm/hugetlb.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 1d3c8ea9..824f07b 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1922,8 +1922,11 @@ int hugetlb_force_memcg_empty(struct cgroup *cgroup) int ret = 0, idx = 0; do { - if (cgroup_task_count(cgroup) || !list_empty(&cgroup->children)) + if (cgroup_task_count(cgroup) + || !list_empty(&cgroup->children)) { + ret = -EBUSY; goto out; + } /* * If the task doing the cgroup_rmdir got a signal * we don't really need to loop till the hugetlb resource -- 1.7.4.1 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org