Commit b6302e05 authored by Bobby Eshleman's avatar Bobby Eshleman Committed by Paolo Abeni
Browse files

vsock: document write-once behavior of the child_ns_mode sysctl 



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: default avatarBobby Eshleman <bobbyeshleman@meta.com>
Reviewed-by: default avatarStefano Garzarella <sgarzare@redhat.com>
Link: https://patch.msgid.link/20260223-vsock-ns-write-once-v3-3-c0cde6959923@meta.com


Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent 102eab95

Documentation/admin-guide/sysctl/net.rst

+3 −0
Original line number Diff line number Diff line
@@ -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.