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-rw-r--r--Documentation/device-mapper/verity.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/device-mapper/verity.txt b/Documentation/device-mapper/verity.txt
index d602c801ff59..89fd8f9a259f 100644
--- a/Documentation/device-mapper/verity.txt
+++ b/Documentation/device-mapper/verity.txt
@@ -79,6 +79,11 @@ restart_on_corruption
not compatible with ignore_corruption and requires user space support to
avoid restart loops.
+ignore_zero_blocks
+ Do not verify blocks that are expected to contain zeroes and always return
+ zeroes instead. This may be useful if the partition contains unused blocks
+ that are not guaranteed to contain zeroes.
+
use_fec_from_device <fec_dev>
Use forward error correction (FEC) to recover from corruption if hash
verification fails. Use encoding data from the specified device. This