create_inode: set xattrs to the root directory as well

[tools/e2fsprogs.git] / misc / filefrag.8.in

diff --git a/misc/filefrag.8.in b/misc/filefrag.8.in
index 1077c9d..4b89e72 100644 (file)
--- a/misc/filefrag.8.in
+++ b/misc/filefrag.8.in
@@ -5,20 +5,58 @@ filefrag \- report on file fragmentation
 .SH SYNOPSIS
 .B filefrag
 [
-.B \-v
+.BI \-b blocksize
+]
+[
+.B \-BeksvxX
 ]
 [
 .I files...
 ]
 .SH DESCRIPTION
 .B filefrag
-reports on how badly fragmented a particular file might be.  It makes 
+reports on how badly fragmented a particular file might be.  It makes
 allowances for indirect blocks for ext2 and ext3 filesystems, but can be
 used on files for any filesystem.
+.PP
+The
+.B filefrag
+program initially attempts to get the
+extent information using FIEMAP ioctl which is more efficient and faster.
+If FIEMAP is not supported then filefrag will fall back to using FIBMAP.
 .SH OPTIONS
 .TP
+.B \-B
+Force the use of the older FIBMAP ioctl instead of the FIEMAP ioctl for
+testing purposes.
+.TP
+.BI \-b blocksize
+Use
+.I blocksize
+in bytes, or with [KMG] suffix, up to 1GB for output instead of the
+filesystem blocksize.  For compatibility with earlier versions of
+.BR filefrag ,
+if
+.I blocksize
+is unspecified it defaults to 1024 bytes.
+.TP
+.B \-e
+Print output in extent format, even for block-mapped files.
+.TP
+.B \-k
+Use 1024\-byte blocksize for output (identical to '\-b 1024').
+.TP
+.B \-s
+Sync the file before requesting the mapping.
+.TP
 .B \-v
 Be verbose when checking for file fragmentation.
+.TP
+.B \-x
+Display mapping of extended attributes.
+.TP
+.B \-X
+Display extent block numbers in hexadecimal format.
 .SH AUTHOR
 .B filefrag
 was written by Theodore Ts'o <tytso@mit.edu>.