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-rw-r--r--man/btrfs-image.8.in9
1 files changed, 9 insertions, 0 deletions
diff --git a/man/btrfs-image.8.in b/man/btrfs-image.8.in
index 7e0e3b0b..d5ba594a 100644
--- a/man/btrfs-image.8.in
+++ b/man/btrfs-image.8.in
@@ -29,6 +29,15 @@ number of threads (1 ~ 32) to be used to process the image dump or restore.
use the old restore method, this does not fixup the chunk tree so the restored
file system will not be able to be mounted.
.TP
+\fB\-s\fP
+Sanitize the file names when generating the image. One \fB-s\fP means just
+generate random garbage, which means that the directory indexes won't match up
+since the hashes won't match with the garbage filenames. Using \fB-ss\fP will
+calculate a collision for the filename so that the hashes match, and if it
+can't calculate a collision then it will just generate garbage. The collision
+calculator is very time and CPU intensive so only use it if you are having
+problems with your file system tree and need to have it mostly working.
+.TP
\fB\-w\fP
Walk all the trees manually and copy any blocks that are referenced. Use this
option if your extent tree is corrupted to make sure that all of the metadata is