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authorAndrey Vagin <avagin@openvz.org>2016-09-06 00:47:15 -0700
committerEric W. Biederman <ebiederm@xmission.com>2016-09-22 19:59:41 -0500
commita7306ed8d94af729ecef8b6e37506a1c6fc14788 (patch)
tree0d45320911d2a339bc0abd6bacd5703c7308c08c /kernel/user_namespace.c
parent6786741dbf99e44fb0c0ed85a37582b8a26f1c3b (diff)
downloadlinux-a7306ed8d94af729ecef8b6e37506a1c6fc14788.tar.bz2
nsfs: add ioctl to get a parent namespace
Pid and user namepaces are hierarchical. There is no way to discover parent-child relationships. In a future we will use this interface to dump and restore nested namespaces. Acked-by: Serge Hallyn <serge@hallyn.com> Signed-off-by: Andrei Vagin <avagin@openvz.org> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'kernel/user_namespace.c')
-rw-r--r--kernel/user_namespace.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index 0ef683a03c20..a58a219b99c6 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -1034,6 +1034,7 @@ const struct proc_ns_operations userns_operations = {
.put = userns_put,
.install = userns_install,
.owner = userns_owner,
+ .get_parent = ns_get_owner,
};
static __init int user_namespaces_init(void)