sunrpc: add some tracepoints in svc_rqst handling functions

...just around svc_send, svc_recv and svc_process for now.

Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

1 files changed, 55 insertions, 0 deletions

diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index 1fef3e6e9436..6260f5134212 100644
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -6,6 +6,7 @@
 
 #include <linux/sunrpc/sched.h>
 #include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/svc.h>
 #include <net/tcp_states.h>
 #include <linux/net.h>
 #include <linux/tracepoint.h>
@@ -306,6 +307,60 @@ DEFINE_RPC_SOCKET_EVENT_DONE(rpc_socket_reset_connection);
 DEFINE_RPC_SOCKET_EVENT(rpc_socket_close);
 DEFINE_RPC_SOCKET_EVENT(rpc_socket_shutdown);
 
+TRACE_EVENT(svc_recv,
+        TP_PROTO(struct svc_rqst *rqst, int status),
+
+        TP_ARGS(rqst, status),
+
+        TP_STRUCT__entry(
+                __field(struct sockaddr *, addr)
+                __field(__be32, xid)
+                __field(int, status)
+        ),
+
+        TP_fast_assign(
+                __entry->addr = (struct sockaddr *)&rqst->rq_addr;
+                __entry->xid = status > 0 ? rqst->rq_xid : 0;
+                __entry->status = status;
+        ),
+
+        TP_printk("addr=%pIScp xid=0x%x status=%d", __entry->addr,
+                        be32_to_cpu(__entry->xid), __entry->status)
+);
+
+DECLARE_EVENT_CLASS(svc_rqst_status,
+
+        TP_PROTO(struct svc_rqst *rqst, int status),
+
+        TP_ARGS(rqst, status),
+
+        TP_STRUCT__entry(
+                __field(struct sockaddr *, addr)
+                __field(__be32, xid)
+                __field(int, dropme)
+                __field(int, status)
+        ),
+
+        TP_fast_assign(
+                __entry->addr = (struct sockaddr *)&rqst->rq_addr;
+                __entry->xid = rqst->rq_xid;
+                __entry->dropme = (int)rqst->rq_dropme;
+                __entry->status = status;
+        ),
+
+        TP_printk("addr=%pIScp rq_xid=0x%x dropme=%d status=%d",
+                __entry->addr, be32_to_cpu(__entry->xid), __entry->dropme,
+                __entry->status)
+);
+
+DEFINE_EVENT(svc_rqst_status, svc_process,
+        TP_PROTO(struct svc_rqst *rqst, int status),
+        TP_ARGS(rqst, status));
+
+DEFINE_EVENT(svc_rqst_status, svc_send,
+        TP_PROTO(struct svc_rqst *rqst, int status),
+        TP_ARGS(rqst, status));
+
 #endif /* _TRACE_SUNRPC_H */
 
 #include <trace/define_trace.h>