From patchwork Sun Apr 7 07:50:00 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leon Romanovsky X-Patchwork-Id: 1079897 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@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=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="bq+H0NmV"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 44cQhS2wMWz9sPb for ; Sun, 7 Apr 2019 17:50:32 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726329AbfDGHu3 (ORCPT ); Sun, 7 Apr 2019 03:50:29 -0400 Received: from mail.kernel.org ([198.145.29.99]:54160 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725942AbfDGHu2 (ORCPT ); Sun, 7 Apr 2019 03:50:28 -0400 Received: from localhost (unknown [193.47.165.251]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 31720218CD; Sun, 7 Apr 2019 07:50:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1554623427; bh=dgm1CgSfJKOZNuV3rwgCW42sApSyMo/CdJIKg+iIhb8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bq+H0NmVfXCNuOuJBZv76q2zr6LYGft9+eaZHCSsc8IOV8wH+dX29P9nn1uNpTzfU qv3vU+R1vmfui919IBZweQGvWaVpsJ3JA/6JToIvqA943j3veSNxJKTDzWYrMkB314 WPTcJllwh6BRO3AWvcGcyzhE5IlnW04Aj90Pflyw= From: Leon Romanovsky To: Doug Ledford , Jason Gunthorpe Cc: Leon Romanovsky , RDMA mailing list , Majd Dibbiny , Mark Zhang , Saeed Mahameed , linux-netdev Subject: [PATCH rdma-next v1 04/17] RDMA/restrack: Make is_visible_in_pid_ns() as an API Date: Sun, 7 Apr 2019 10:50:00 +0300 Message-Id: <20190407075013.12955-5-leon@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190407075013.12955-1-leon@kernel.org> References: <20190407075013.12955-1-leon@kernel.org> MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Mark Zhang Remove is_visible_in_pid_ns() from nldev.c and make it as a restrack API, so that it can be taken advantage by other parts like counter. Signed-off-by: Mark Zhang Reviewed-by: Majd Dibbiny Signed-off-by: Leon Romanovsky --- drivers/infiniband/core/nldev.c | 15 ++------------- drivers/infiniband/core/restrack.c | 13 +++++++++++++ drivers/infiniband/core/restrack.h | 1 + 3 files changed, 16 insertions(+), 13 deletions(-) diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index 507c8f830f80..2da1703cbbb1 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -992,17 +992,6 @@ static const struct nldev_fill_res_entry fill_entries[RDMA_RESTRACK_MAX] = { }, }; -static bool is_visible_in_pid_ns(struct rdma_restrack_entry *res) -{ - /* - * 1. Kern resources should be visible in init name space only - * 2. Present only resources visible in the current namespace - */ - if (rdma_is_kernel_res(res)) - return task_active_pid_ns(current) == &init_pid_ns; - return task_active_pid_ns(current) == task_active_pid_ns(res->task); -} - static int res_get_common_doit(struct sk_buff *skb, struct nlmsghdr *nlh, struct netlink_ext_ack *extack, enum rdma_restrack_type res_type) @@ -1047,7 +1036,7 @@ static int res_get_common_doit(struct sk_buff *skb, struct nlmsghdr *nlh, goto err; } - if (!is_visible_in_pid_ns(res)) { + if (!rdma_is_visible_in_pid_ns(res)) { ret = -ENOENT; goto err_get; } @@ -1159,7 +1148,7 @@ static int res_get_common_dumpit(struct sk_buff *skb, * objects. */ xa_for_each(&rt->xa, id, res) { - if (!is_visible_in_pid_ns(res)) + if (!rdma_is_visible_in_pid_ns(res)) continue; if (idx < start || !rdma_restrack_get(res)) diff --git a/drivers/infiniband/core/restrack.c b/drivers/infiniband/core/restrack.c index 3714634ae296..bddff426ee0f 100644 --- a/drivers/infiniband/core/restrack.c +++ b/drivers/infiniband/core/restrack.c @@ -349,3 +349,16 @@ void rdma_restrack_del(struct rdma_restrack_entry *res) } } EXPORT_SYMBOL(rdma_restrack_del); + +bool rdma_is_visible_in_pid_ns(struct rdma_restrack_entry *res) +{ + /* + * 1. Kern resources should be visible in init + * namespace only + * 2. Present only resources visible in the current + * namespace + */ + if (rdma_is_kernel_res(res)) + return task_active_pid_ns(current) == &init_pid_ns; + return task_active_pid_ns(current) == task_active_pid_ns(res->task); +} diff --git a/drivers/infiniband/core/restrack.h b/drivers/infiniband/core/restrack.h index d084e5f89849..7bd177cc0a61 100644 --- a/drivers/infiniband/core/restrack.h +++ b/drivers/infiniband/core/restrack.h @@ -27,4 +27,5 @@ int rdma_restrack_init(struct ib_device *dev); void rdma_restrack_clean(struct ib_device *dev); void rdma_restrack_attach_task(struct rdma_restrack_entry *res, struct task_struct *task); +bool rdma_is_visible_in_pid_ns(struct rdma_restrack_entry *res); #endif /* _RDMA_CORE_RESTRACK_H_ */