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-rw-r--r--Documentation/device-mapper/delay.txt1
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/device-mapper/delay.txt b/Documentation/device-mapper/delay.txt
index 15adc55359e5..a07b5927f4a8 100644
--- a/Documentation/device-mapper/delay.txt
+++ b/Documentation/device-mapper/delay.txt
@@ -8,6 +8,7 @@ Parameters:
<device> <offset> <delay> [<write_device> <write_offset> <write_delay>]
With separate write parameters, the first set is only used for reads.
+Offsets are specified in sectors.
Delays are specified in milliseconds.
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