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authorAndrey Vagin <avagin@openvz.org>2016-09-06 10:47:15 +0300
committerEric W. Biederman <ebiederm@xmission.com>2016-09-23 03:59:41 +0300
commita7306ed8d94af729ecef8b6e37506a1c6fc14788 (patch)
tree0d45320911d2a339bc0abd6bacd5703c7308c08c /include/linux/proc_ns.h
parent6786741dbf99e44fb0c0ed85a37582b8a26f1c3b (diff)
downloadlinux-a7306ed8d94af729ecef8b6e37506a1c6fc14788.tar.xz
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 'include/linux/proc_ns.h')
-rw-r--r--include/linux/proc_ns.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/proc_ns.h b/include/linux/proc_ns.h
index ca85a4348ffc..12cb8bd81d2d 100644
--- a/include/linux/proc_ns.h
+++ b/include/linux/proc_ns.h
@@ -19,6 +19,7 @@ struct proc_ns_operations {
void (*put)(struct ns_common *ns);
int (*install)(struct nsproxy *nsproxy, struct ns_common *ns);
struct user_namespace *(*owner)(struct ns_common *ns);
+ struct ns_common *(*get_parent)(struct ns_common *ns);
};
extern const struct proc_ns_operations netns_operations;