.B lctl barrier_thaw \fR{fsname}
.br
.br
-.B lctl barrier_stat \fR{fsname}
+.B lctl barrier_stat \fR[--state|-s] [--timeout|-t] {fsname}
.br
.br
.B lctl barrier_rescan \fR{fsname} [timeout]
.B barrier_freeze
command) will be handled normally.
.TP
-.B barrier_stat \fR{fsname}
+.B barrier_stat \fR[--state|-s] [--timeout|-t] {fsname}
.br
Query the write barrier status, the possible status and related meanings are
as following:
'unknown': other cases
.br
If the barrier is in 'freezing_p1', 'freezing_p2' or 'frozen' status, then
-the lifetime remaining will be returned also.
+the lifetime remaining will be returned also. If no option is specified,
+or both "-s" and "-t" options are specified, then the output format is:
+
+ state: xxx
+ timeout: nnn seconds
+
+Otherwise, only the value ('xxx' or 'nnn') corresponding to the given option
+will be printed.
.TP
.B barrier_rescan \fR{fsname} [timeout]
.br