From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx171.postini.com [74.125.245.171]) by kanga.kvack.org (Postfix) with SMTP id BBD636B0062 for ; Thu, 8 Dec 2011 20:56:35 -0500 (EST) Received: from m1.gw.fujitsu.co.jp (unknown [10.0.50.71]) by fgwmail5.fujitsu.co.jp (Postfix) with ESMTP id 532693EE0BC for ; Fri, 9 Dec 2011 10:56:34 +0900 (JST) Received: from smail (m1 [127.0.0.1]) by outgoing.m1.gw.fujitsu.co.jp (Postfix) with ESMTP id 2FADB45DE8A for ; Fri, 9 Dec 2011 10:56:34 +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 13C5245DE87 for ; Fri, 9 Dec 2011 10:56:34 +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 01134E08002 for ; Fri, 9 Dec 2011 10:56:34 +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 91F40E08006 for ; Fri, 9 Dec 2011 10:56:33 +0900 (JST) Date: Fri, 9 Dec 2011 10:55:19 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [PATCH v8 6/9] tcp buffer limitation: per-cgroup limit Message-Id: <20111209105519.c4d885c9.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <1323120903-2831-7-git-send-email-glommer@parallels.com> References: <1323120903-2831-1-git-send-email-glommer@parallels.com> <1323120903-2831-7-git-send-email-glommer@parallels.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Glauber Costa Cc: linux-kernel@vger.kernel.org, lizf@cn.fujitsu.com, ebiederm@xmission.com, davem@davemloft.net, gthelen@google.com, netdev@vger.kernel.org, linux-mm@kvack.org, kirill@shutemov.name, avagin@parallels.com, devel@openvz.org, eric.dumazet@gmail.com, cgroups@vger.kernel.org, hannes@cmpxchg.org, mhocko@suse.cz On Mon, 5 Dec 2011 19:35:00 -0200 Glauber Costa wrote: > This patch uses the "tcp.limit_in_bytes" field of the kmem_cgroup to > effectively control the amount of kernel memory pinned by a cgroup. > > This value is ignored in the root cgroup, and in all others, > caps the value specified by the admin in the net namespaces' > view of tcp_sysctl_mem. > > If namespaces are being used, the admin is allowed to set a > value bigger than cgroup's maximum, the same way it is allowed > to set pretty much unlimited values in a real box. > > Signed-off-by: Glauber Costa > CC: David S. Miller > CC: Hiroyouki Kamezawa > CC: Eric W. Biederman Reviewed-by: KAMEZAWA Hiroyuki -- 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