From: Bobby Eshleman Update the vsock child_ns_mode documentation to include the new write-once semantics of setting child_ns_mode. The semantics are implemented in a preceding patch in this series. Signed-off-by: Bobby Eshleman --- Changes in v3: - update language to clarify language that first value is locked, but subsequent writes succeed. --- Documentation/admin-guide/sysctl/net.rst | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/admin-guide/sysctl/net.rst b/Documentation/admin-guide/sysctl/net.rst index c10530624f1e..3b2ad61995d4 100644 --- a/Documentation/admin-guide/sysctl/net.rst +++ b/Documentation/admin-guide/sysctl/net.rst @@ -594,6 +594,9 @@ Values: their sockets will only be able to connect within their own namespace. +The first write to ``child_ns_mode`` locks its value. Subsequent writes of the +same value succeed, but writing a different value returns ``-EBUSY``. + Changing ``child_ns_mode`` only affects namespaces created after the change; it does not modify the current namespace or any existing children. -- 2.47.3