From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753563AbcHPWdX (ORCPT ); Tue, 16 Aug 2016 18:33:23 -0400 Received: from mail-pa0-f67.google.com ([209.85.220.67]:35387 "EHLO mail-pa0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752529AbcHPWdV (ORCPT ); Tue, 16 Aug 2016 18:33:21 -0400 From: Dmitry Torokhov To: Tejun Heo , "Eric W. Biederman" , "David S. Miller" Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH 3/5] kobject: kset_create_and_add() - fetch ownership info from parent Date: Tue, 16 Aug 2016 15:33:13 -0700 Message-Id: <1471386795-32918-4-git-send-email-dmitry.torokhov@gmail.com> X-Mailer: git-send-email 2.8.0.rc3.226.g39d4020 In-Reply-To: <1471386795-32918-1-git-send-email-dmitry.torokhov@gmail.com> References: <1471386795-32918-1-git-send-email-dmitry.torokhov@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This change implements get_ownership() for ksets created with kset_create_and_add() call by fetching ownership data from parent kobject. This is done mostly for benefit of "queues" attribute of net devices so that corresponding directory belongs to container's root instead of global root for network devices in a container. Signed-off-by: Dmitry Torokhov --- lib/kobject.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/lib/kobject.c b/lib/kobject.c index 7d516d9..f81ac7c 100644 --- a/lib/kobject.c +++ b/lib/kobject.c @@ -890,9 +890,16 @@ static void kset_release(struct kobject *kobj) kfree(kset); } +void kset_get_ownership(struct kobject *kobj, kuid_t *uid, kgid_t *gid) +{ + if (kobj->parent) + kobject_get_ownership(kobj->parent, uid, gid); +} + static struct kobj_type kset_ktype = { .sysfs_ops = &kobj_sysfs_ops, - .release = kset_release, + .release = kset_release, + .get_ownership = kset_get_ownership, }; /** -- 2.8.0.rc3.226.g39d4020