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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Stefan Hajnoczi , Shuah Khan , Bobby Eshleman , "Michael S. Tsirkin" , Jonathan Corbet , Shuah Khan Cc: virtualization@lists.linux.dev, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-doc@vger.kernel.org, kuniyu@google.com, ncardwell@google.com X-Mailer: b4 0.14.3 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 Reviewed-by: Stefano Garzarella --- Changes in v3: - update language to clarify language that first value is locked, but subse= quent 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. =20 +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 chang= e; it does not modify the current namespace or any existing children. =20 --=20 2.47.3