path: root/man
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authorGoffredo Baroncelli <>2012-10-29 18:53:20 +0100
committerDavid Sterba <>2013-02-01 01:04:15 +0100
commit1be4621bc932baaad589d20ec021582fff43c250 (patch)
tree7f9bf6ce8ecdd1e6088d4caf6a33681d2cfdf515 /man
parent1a72afaa85747cdf327b9b6a6ad1364d39007368 (diff)
Update the man page with the new prefixes.
Signed-off-by: Goffredo Baroncelli <>
Diffstat (limited to 'man')
2 files changed, 6 insertions, 0 deletions
diff --git a/man/ b/man/
index 90a0a43b..054fce0d 100644
--- a/man/
+++ b/man/
@@ -194,6 +194,9 @@ defragment operations.
\fB-t size\fP defragment only files at least \fIsize\fR bytes big
+For \fBstart\fP, \fBlen\fP, \fBsize\fP it is possible to append a suffix
+like \fBk\fP for 1 KBytes, \fBm\fP for 1 MBytes...
NOTE: defragmenting with kernels up to 2.6.37 will unlink COW-ed copies of data,
don't use it if you use snapshots, have de-duplicated your data or made
copies with \fBcp --reflink\fP.
diff --git a/man/ b/man/
index b7bcc1b2..45386587 100644
--- a/man/
+++ b/man/
@@ -72,6 +72,9 @@ Do not perform whole device TRIM operation by default.
\fB\-V\fR, \fB\-\-version\fR
Print the \fBmkfs.btrfs\fP version and exit.
+As default the unit is the byte, however it is possible to append a suffix
+to the arguments like \fBk\fP for KBytes, \fBm\fP for MBytes...
.B mkfs.btrfs
is part of btrfs-progs. Btrfs is currently under heavy development,