Message ID | 151094331141.20009.618108555770576501.stgit@localhost.localdomain |
---|---|
State | RFC, archived |
Delegated to: | David Miller |
Headers | show
Return-Path: <netdev-owner@vger.kernel.org> X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=<UNKNOWN>) Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=virtuozzo.com header.i=@virtuozzo.com header.b="HsnQDCJX"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3ydmpx2n2fz9t2Z for <patchwork-incoming@ozlabs.org>; Sat, 18 Nov 2017 05:29:13 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966283AbdKQS3G (ORCPT <rfc822;patchwork-incoming@ozlabs.org>); Fri, 17 Nov 2017 13:29:06 -0500 Received: from mail-ve1eur01on0129.outbound.protection.outlook.com ([104.47.1.129]:2529 "EHLO EUR01-VE1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S966221AbdKQS2m (ORCPT <rfc822;netdev@vger.kernel.org>); Fri, 17 Nov 2017 13:28:42 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=virtuozzo.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=XagUiueizcrCjxY6RjI2zRH8t9bs70mX4Joopx07GuU=; b=HsnQDCJXGkP8HXaHSDwWOKCV6iaL9rThPqQhz+iUNs9tmpskY8hng8MFzn5RV5IzgiGcSt0FPZhuHwR+SZRMpOjsyAjBQD7E8VogFbB3nhbYKcAr1h3M3tnCwDy0UC4kgXnpGPyNknO76dg/v5a8WAYT1gKzfJS8r9m6U2NWuD8= Received: from localhost.localdomain (195.214.232.6) by DB6PR0801MB1334.eurprd08.prod.outlook.com (2603:10a6:4:a::28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.20.239.5; Fri, 17 Nov 2017 18:28:34 +0000 Subject: [PATCH RFC 08/25] net: Move proc_net_ns_ops to pernet_sys list From: Kirill Tkhai <ktkhai@virtuozzo.com> To: davem@davemloft.net, vyasevic@redhat.com, kstewart@linuxfoundation.org, pombredanne@nexb.com, vyasevich@gmail.com, mark.rutland@arm.com, gregkh@linuxfoundation.org, adobriyan@gmail.com, fw@strlen.de, nicolas.dichtel@6wind.com, xiyou.wangcong@gmail.com, roman.kapl@sysgo.com, paul@paul-moore.com, dsahern@gmail.com, daniel@iogearbox.net, lucien.xin@gmail.com, mschiffer@universe-factory.net, rshearma@brocade.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, ktkhai@virtuozzo.com, ebiederm@xmission.com, avagin@virtuozzo.com, gorcunov@virtuozzo.com, eric.dumazet@gmail.com, stephen@networkplumber.org, ktkhai@virtuozzo.com Date: Fri, 17 Nov 2017 21:28:31 +0300 Message-ID: <151094331141.20009.618108555770576501.stgit@localhost.localdomain> In-Reply-To: <151094119999.20009.6955267140148739392.stgit@localhost.localdomain> References: <151094119999.20009.6955267140148739392.stgit@localhost.localdomain> User-Agent: StGit/0.18 MIME-Version: 1.0 Content-Type: text/plain; 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Series |
[RFC,01/25] net: Assign net to net_namespace_list in setup_net()
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diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c index a2bf369c923d..5eb52765eeab 100644 --- a/fs/proc/proc_net.c +++ b/fs/proc/proc_net.c @@ -243,5 +243,5 @@ int __init proc_net_init(void) { proc_symlink("net", NULL, "self/net"); - return register_pernet_subsys(&proc_net_ns_ops); + return register_pernet_sys(&proc_net_ns_ops); }
This patch starts to convert pernet_subsys, registered from before initcalls. Since proc_net_ns_ops is registered pernet_subsys, made from: start_kernel()->proc_root_init()->proc_net_init(), and there is no a pernet_subsys, which is registered earlier, we start from it. proc_net_ns_ops::proc_net_ns_init()/proc_net_ns_exit() register pernet net->proc_net and ->proc_net_stat, and constructors and destructors of another pernet_operations are not interested in foreign net's proc_net and proc_net_stat. Proc filesystem privitives are synchronized on proc_subdir_lock. So, it's safe to move proc_net_ns_ops to pernet_sys list and execute its methods in parallel with another pernet operations. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> --- fs/proc/proc_net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)