From patchwork Thu Sep 9 11:14:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Kuznetsov X-Patchwork-Id: 508711 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=-15.7 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, URIBL_BLOCKED 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 98602C433FE for ; Thu, 9 Sep 2021 11:15:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 77AB560E94 for ; Thu, 9 Sep 2021 11:15:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235048AbhIILQj (ORCPT ); Thu, 9 Sep 2021 07:16:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58272 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234216AbhIILQi (ORCPT ); Thu, 9 Sep 2021 07:16:38 -0400 X-Greylist: delayed 72 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Thu, 09 Sep 2021 04:15:29 PDT Received: from forwardcorp1j.mail.yandex.net (forwardcorp1j.mail.yandex.net [IPv6:2a02:6b8:0:1619::183]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7262AC061575 for ; Thu, 9 Sep 2021 04:15:29 -0700 (PDT) Received: from sas1-ec30c78b6c5b.qloud-c.yandex.net (sas1-ec30c78b6c5b.qloud-c.yandex.net [IPv6:2a02:6b8:c14:2704:0:640:ec30:c78b]) by forwardcorp1j.mail.yandex.net (Yandex) with ESMTP id 9272F2E0954 for ; Thu, 9 Sep 2021 14:14:14 +0300 (MSK) Received: from sas1-db2fca0e44c8.qloud-c.yandex.net (sas1-db2fca0e44c8.qloud-c.yandex.net [2a02:6b8:c14:6696:0:640:db2f:ca0e]) by sas1-ec30c78b6c5b.qloud-c.yandex.net (mxbackcorp/Yandex) with ESMTP id IFQDQ7Thnc-EEti56BE; Thu, 09 Sep 2021 14:14:14 +0300 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex-team.ru; s=default; t=1631186054; bh=tDh7itUeuauH/cuowx/B1dvLSD67Lci4VwWjcEU54+Y=; h=Cc:Message-Id:Date:Subject:To:From; b=mzrsdNvJUeYxuERP11s+YDzLzS+y9QDRpR7eWmuzXdZyFTktBWdDEd13Ydohyvg8P w8/0/FM7VUgniOy3U5WD4SXDtMuprfo14d0DArsb+cs55PIllbo7BOluyZK8lbbiQE sKMitkoGyNNsA/Z23/FoRNGRKym2ztWF2RraE9sM= Authentication-Results: sas1-ec30c78b6c5b.qloud-c.yandex.net; dkim=pass header.i=@yandex-team.ru Received: from dynamic-red.dhcp.yndx.net (dynamic-red.dhcp.yndx.net [2a02:6b8:0:40c:28ca:2366:8c70:23dc]) by sas1-db2fca0e44c8.qloud-c.yandex.net (smtpcorp/Yandex) with ESMTPSA id wrNBnRK2rx-EE0SLRMK; Thu, 09 Sep 2021 14:14:14 +0300 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client certificate not present) From: Alexander Kuznetsov To: netdev@vger.kernel.org Cc: zeil@yandex-team.ru Subject: [PATCH] ipv6: enable net.ipv6.route sysctls in network namespace Date: Thu, 9 Sep 2021 14:14:09 +0300 Message-Id: <20210909111409.14425-1-wwfq@yandex-team.ru> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org We want to increase route cache size in network namespace created with user namespace. Currently ipv6 route settings are disabled for non-initial network namespaces. Since routes are per network namespace it is safe to enable these sysctls. Signed-off-by: Alexander Kuznetsov Acked-by: Dmitry Yakunin --- net/ipv6/route.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index b6ddf23..de85e3b 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -6415,10 +6415,6 @@ struct ctl_table * __net_init ipv6_route_sysctl_init(struct net *net) table[8].data = &net->ipv6.sysctl.ip6_rt_min_advmss; table[9].data = &net->ipv6.sysctl.ip6_rt_gc_min_interval; table[10].data = &net->ipv6.sysctl.skip_notify_on_dev_down; - - /* Don't export sysctls to unprivileged users */ - if (net->user_ns != &init_user_ns) - table[0].procname = NULL; } return table;