RDS: verify the underlying transport exists before creating a connection

[karo-tx-linux.git] / Documentation / device-mapper / statistics.txt

diff --git a/Documentation/device-mapper/statistics.txt b/Documentation/device-mapper/statistics.txt
index 4919b2dfd1b391c4169de1b66f5e78bd9ba2d9cc..6f5ef944ca4c8fcdbe9ce8cb06b0bddf0bcdfe59 100644 (file)
--- a/Documentation/device-mapper/statistics.txt
+++ b/Documentation/device-mapper/statistics.txt
@@ -121,6 +121,10 @@ Messages
 
        Output format:
          <region_id>: <start_sector>+<length> <step> <program_id> <aux_data>
+               precise_timestamps histogram:n1,n2,n3,...
+
+       The strings "precise_timestamps" and "histogram" are printed only
+       if they were specified when creating the region.
 
     @stats_print <region_id> [<starting_line> <number_of_lines>]