Commit e3603ccf authored Sep 19, 2023 by Steve French

smb3: Add dynamic trace points for RDMA (smbdirect) reconnect



     smb3_smbd_connect_done and smb3_smbd_connect_err

To improve debugging of RDMA issues add those two. We already
had dynamic tracepoints for non-RDMA connect done and error cases.

Reviewed-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>

parent ce9ecca0

fs/smb/client/smbdirect.c

+6 −3

Original line number	Original line	Diff line number	Diff line
	@@ -1401,10 +1401,13 @@ int smbd_reconnect(struct TCP_Server_Info *server)
	server->smbd_conn = smbd_get_connection(		server->smbd_conn = smbd_get_connection(
	server, (struct sockaddr *) &server->dstaddr);		server, (struct sockaddr *) &server->dstaddr);

	if (server->smbd_conn)		if (server->smbd_conn) {
	cifs_dbg(VFS, "RDMA transport re-established\n");		cifs_dbg(VFS, "RDMA transport re-established\n");
			trace_smb3_smbd_connect_done(server->hostname, server->conn_id, &server->dstaddr);
	return server->smbd_conn ? 0 : -ENOENT;		return 0;
			}
			trace_smb3_smbd_connect_err(server->hostname, server->conn_id, &server->dstaddr);
			return -ENOENT;
	}		}

	static void destroy_caches_and_workqueue(struct smbd_connection *info)		static void destroy_caches_and_workqueue(struct smbd_connection *info)

fs/smb/client/trace.h

+2 −0

Original line number	Original line	Diff line number	Diff line
	@@ -935,6 +935,8 @@ DEFINE_EVENT(smb3_connect_class, smb3_##name, \
	TP_ARGS(hostname, conn_id, addr))		TP_ARGS(hostname, conn_id, addr))

	DEFINE_SMB3_CONNECT_EVENT(connect_done);		DEFINE_SMB3_CONNECT_EVENT(connect_done);
			DEFINE_SMB3_CONNECT_EVENT(smbd_connect_done);
			DEFINE_SMB3_CONNECT_EVENT(smbd_connect_err);

	DECLARE_EVENT_CLASS(smb3_connect_err_class,		DECLARE_EVENT_CLASS(smb3_connect_err_class,
	TP_PROTO(char *hostname, __u64 conn_id,		TP_PROTO(char *hostname, __u64 conn_id,