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-rw-r--r--Documentation/device-mapper/dm-flakey.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/device-mapper/dm-flakey.txt b/Documentation/device-mapper/dm-flakey.txt
index c43030718cef..9f0e247d0877 100644
--- a/Documentation/device-mapper/dm-flakey.txt
+++ b/Documentation/device-mapper/dm-flakey.txt
@@ -33,6 +33,10 @@ Optional feature parameters:
All write I/O is silently ignored.
Read I/O is handled correctly.
+ error_writes:
+ All write I/O is failed with an error signalled.
+ Read I/O is handled correctly.
+
corrupt_bio_byte <Nth_byte> <direction> <value> <flags>:
During <down interval>, replace <Nth_byte> of the data of
each matching bio with <value>.