From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tyler Hicks Subject: [PATCH net-next v3 3/8] kobject: kset_create_and_add() - fetch ownership info from parent Date: Fri, 20 Jul 2018 21:56:49 +0000 Message-ID: <1532123814-1109-4-git-send-email-tyhicks@canonical.com> References: <1532123814-1109-1-git-send-email-tyhicks@canonical.com> Cc: Dmitry Torokhov , "Eric W. Biederman" , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, bridge@lists.linux-foundation.org, Linux Containers To: Greg Kroah-Hartman , Tejun Heo , "David S. Miller" , Stephen Hemminger Return-path: In-Reply-To: <1532123814-1109-1-git-send-email-tyhicks@canonical.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Dmitry Torokhov 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 Reviewed-by: Tyler Hicks --- lib/kobject.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/lib/kobject.c b/lib/kobject.c index f2dc1f756007..389829d3a1d1 100644 --- a/lib/kobject.c +++ b/lib/kobject.c @@ -887,9 +887,16 @@ 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, }; /** -- 2.7.4