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diff --git a/xlators/performance/write-behind/src/write-behind-messages.h b/xlators/performance/write-behind/src/write-behind-messages.h
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+/*Copyright (c) 2015 Red Hat, Inc. <http://www.redhat.com>
+ This file is part of GlusterFS.
+
+ This file is licensed to you under your choice of the GNU Lesser
+ General Public License, version 3 or any later version (LGPLv3 or
+ later), or the GNU General Public License, version 2 (GPLv2), in all
+ cases as published by the Free Software Foundation.
+*/
+
+#ifndef _WRITE_BEHIND_MESSAGES_H_
+#define _WRITE_BEHIND_MESSAGES_H_
+
+#include <glusterfs/glfs-message-id.h>
+
+/* To add new message IDs, append new identifiers at the end of the list.
+ *
+ * Never remove a message ID. If it's not used anymore, you can rename it or
+ * leave it as it is, but not delete it. This is to prevent reutilization of
+ * IDs by other messages.
+ *
+ * The component name must match one of the entries defined in
+ * glfs-message-id.h.
+ */
+
+GLFS_MSGID(WRITE_BEHIND, WRITE_BEHIND_MSG_EXCEEDED_MAX_SIZE,
+ WRITE_BEHIND_MSG_INIT_FAILED, WRITE_BEHIND_MSG_INVALID_ARGUMENT,
+ WRITE_BEHIND_MSG_NO_MEMORY, WRITE_BEHIND_MSG_SIZE_NOT_SET,
+ WRITE_BEHIND_MSG_VOL_MISCONFIGURED,
+ WRITE_BEHIND_MSG_RES_UNAVAILABLE);
+
+#endif /* _WRITE_BEHIND_MESSAGES_H_ */