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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2018-07-21 00:56:49 +0300
committerDavid S. Miller <davem@davemloft.net>2018-07-21 09:44:35 +0300
commitd028b6f703209dbe96201b2714ff46625877128e (patch)
tree8bf72328aa2e5d854f9dd63640f6ee5ec129a554
parent5f81880d5204ee2388fd9a75bb850ccd526885b7 (diff)
downloadlinux-d028b6f703209dbe96201b2714ff46625877128e.tar.xz
kobject: kset_create_and_add() - fetch ownership info from parent
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 <dmitry.torokhov@gmail.com> Reviewed-by: Tyler Hicks <tyhicks@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--lib/kobject.c9
1 files changed, 8 insertions, 1 deletions
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,
};
/**