From patchwork Mon Jul 19 10:44:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vasily Averin X-Patchwork-Id: 480326 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 57418C07E9B for ; Mon, 19 Jul 2021 10:44:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3EF8F61006 for ; Mon, 19 Jul 2021 10:44:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236500AbhGSKER (ORCPT ); Mon, 19 Jul 2021 06:04:17 -0400 Received: from relay.sw.ru ([185.231.240.75]:44570 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236536AbhGSKEG (ORCPT ); Mon, 19 Jul 2021 06:04:06 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=virtuozzo.com; s=relay; h=Content-Type:MIME-Version:Date:Message-ID:Subject :From; bh=w+0FNs53pgnmzx96zi7TBJAdHiw/aP1PrzGmhZUmSkE=; b=IO1vcqg4VE8nP6Skqrj 94WKAjOjSObrDnICD6nbIGI921wjlD0hPgSg20oEXGcgnMqhdIIl27qyTUILZ1YzbCB0Fqs5TEtww yDgqt0/G8hFOspvB8rxqfB1CeKRNUSxdee7eEKlrRqEqalNeGtTOZIwDbfxZA3mW7/S7NvPaC/Y=; Received: from [10.93.0.56] by relay.sw.ru with esmtp (Exim 4.94.2) (envelope-from ) id 1m5QlR-004Rdb-6R; Mon, 19 Jul 2021 13:44:45 +0300 From: Vasily Averin Subject: [PATCH v5 04/16] memcg: enable accounting for VLAN group array To: Andrew Morton Cc: cgroups@vger.kernel.org, Michal Hocko , Shakeel Butt , Johannes Weiner , Vladimir Davydov , Roman Gushchin , "David S. Miller" , Jakub Kicinski , netdev@vger.kernel.org, linux-kernel@vger.kernel.org References: Message-ID: <71acccea-fc9a-13bc-3744-ae5638bd9cc7@virtuozzo.com> Date: Mon, 19 Jul 2021 13:44:44 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org vlan array consume up to 8 pages of memory per net device. It makes sense to account for them to restrict the host's memory consumption from inside the memcg-limited container. Signed-off-by: Vasily Averin --- net/8021q/vlan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index 4cdf841..55275ef 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -67,7 +67,7 @@ static int vlan_group_prealloc_vid(struct vlan_group *vg, return 0; size = sizeof(struct net_device *) * VLAN_GROUP_ARRAY_PART_LEN; - array = kzalloc(size, GFP_KERNEL); + array = kzalloc(size, GFP_KERNEL_ACCOUNT); if (array == NULL) return -ENOBUFS;