Hi, I am instrumenting probes in NFS v3 client to trace the operation requests send to NFS server. But I can not find where is the request of "NULL" operation. For the other operations request, such as GETATTR, REMOVE, I have found the points to send requests by searching rfs3call(). But I can not find the corresponding part for NULL operation.
I check the source code, and found that the NFS v3 server handle request "NULL" in rpc_null_v3() in nfs_server.c. But where is the corresponding request on client side? Regards, Danhua