#define FSDB_MGS_SELF (3) /* for '_mgs', used by sptlrpc */
#define FSDB_OSCNAME18 (4) /* old 1.8 style OSC naming */
#define FSDB_UDESC (5) /* sptlrpc user desc, will be obsolete */
+#define FSDB_REVOKING_PARAMS (6) /* DLM lock is being revoked */
struct fs_db {
char fsdb_name[9];