An LDLM_ENQUEUE RPC with a layout intent uses the 'layout_intent'
structure to specify the desired use for the layout.
+[source,c]
----
struct layout_intent {
__u32 li_opc;
The uses for the layout that the 'li_opc' field can specify are:
+[source,c]
----
enum {
LAYOUT_INTENT_ACCESS = 0,