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-rw-r--r--debugfs/debugfs.8.in17
1 files changed, 16 insertions, 1 deletions
diff --git a/debugfs/debugfs.8.in b/debugfs/debugfs.8.in
index 5b5329c..7cf5c16 100644
--- a/debugfs/debugfs.8.in
+++ b/debugfs/debugfs.8.in
@@ -268,9 +268,24 @@ number, otherwise use the
.B s_mmp_block
field in the superblock to locate and use the existing MMP block.
.TP
-.BI dx_hash " [-h hash_alg] [-s hash_seed] filename"
+.BI dx_hash " [-cv] [-h hash_alg] [-s hash_seed] filename"
Calculate the directory hash of
.IR filename .
+The
+.I -c
+option will casefold the filename before calculating the hash. The
+.I -v
+option will make the
+.B dx_hash
+command more verbose and print the hash algorithm and hash seed to
+calculate the hash.
+If a file system is open, use the hash_seed and
+default hash_algorithm used by the file system, although these can be
+overridden by the
+.I -h
+and
+.I -s
+options.
The hash algorithm specified with
.I -h
may be