Patch "NFSD: Enhance the nfsd_cb_setup tracepoint" has been added to the 5.10-stable tree

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This is a note to let you know that I've just added the patch titled

    NFSD: Enhance the nfsd_cb_setup tracepoint

to the 5.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     nfsd-enhance-the-nfsd_cb_setup-tracepoint.patch
and it can be found in the queue-5.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit cd0aee284e78193ccdb4dc75ec0c89ae881618cc
Author: Chuck Lever <chuck.lever@xxxxxxxxxx>
Date:   Fri May 14 15:57:02 2021 -0400

    NFSD: Enhance the nfsd_cb_setup tracepoint
    
    [ Upstream commit 9f57c6062bf3ce2c6ab9ba60040b34e8134ef259 ]
    
    Display the transport protocol and authentication flavor so admins
    can see what they might be getting wrong.
    
    Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
    Signed-off-by: J. Bruce Fields <bfields@xxxxxxxxxx>
    Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 2a2eb6184bdae..fe1f36b70fa03 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -941,7 +941,8 @@ static int setup_callback_client(struct nfs4_client *clp, struct nfs4_cb_conn *c
 		clp->cl_cb_conn.cb_xprt = conn->cb_xprt;
 	clp->cl_cb_client = client;
 	clp->cl_cb_cred = cred;
-	trace_nfsd_cb_setup(clp);
+	trace_nfsd_cb_setup(clp, rpc_peeraddr2str(client, RPC_DISPLAY_NETID),
+			    args.authflavor);
 	return 0;
 }
 
diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h
index afffb4912acbc..86e0656bdb779 100644
--- a/fs/nfsd/trace.h
+++ b/fs/nfsd/trace.h
@@ -910,7 +910,6 @@ DEFINE_EVENT(nfsd_cb_class, nfsd_cb_##name,		\
 	TP_PROTO(const struct nfs4_client *clp),	\
 	TP_ARGS(clp))
 
-DEFINE_NFSD_CB_EVENT(setup);
 DEFINE_NFSD_CB_EVENT(state);
 DEFINE_NFSD_CB_EVENT(lost);
 DEFINE_NFSD_CB_EVENT(shutdown);
@@ -931,6 +930,32 @@ TRACE_DEFINE_ENUM(RPC_AUTH_GSS_KRB5P);
 		{ RPC_AUTH_GSS_KRB5I,		"krb5i" },		\
 		{ RPC_AUTH_GSS_KRB5P,		"krb5p" })
 
+TRACE_EVENT(nfsd_cb_setup,
+	TP_PROTO(const struct nfs4_client *clp,
+		 const char *netid,
+		 rpc_authflavor_t authflavor
+	),
+	TP_ARGS(clp, netid, authflavor),
+	TP_STRUCT__entry(
+		__field(u32, cl_boot)
+		__field(u32, cl_id)
+		__field(unsigned long, authflavor)
+		__array(unsigned char, addr, sizeof(struct sockaddr_in6))
+		__array(unsigned char, netid, 8)
+	),
+	TP_fast_assign(
+		__entry->cl_boot = clp->cl_clientid.cl_boot;
+		__entry->cl_id = clp->cl_clientid.cl_id;
+		strlcpy(__entry->netid, netid, sizeof(__entry->netid));
+		__entry->authflavor = authflavor;
+		memcpy(__entry->addr, &clp->cl_cb_conn.cb_addr,
+			sizeof(struct sockaddr_in6));
+	),
+	TP_printk("addr=%pISpc client %08x:%08x proto=%s flavor=%s",
+		__entry->addr, __entry->cl_boot, __entry->cl_id,
+		__entry->netid, show_nfsd_authflavor(__entry->authflavor))
+);
+
 TRACE_EVENT(nfsd_cb_setup_err,
 	TP_PROTO(
 		const struct nfs4_client *clp,




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