blockdev: sync man page with code

Signed-off-by: Karel Zak <kzak@redhat.com>

1 files changed, 56 insertions, 64 deletions

diff --git a/disk-utils/blockdev.8 b/disk-utils/blockdev.8
index fa01da54..c3d5dfd7 100644
--- a/disk-utils/blockdev.8
+++ b/disk-utils/blockdev.8
@@ -3,90 +3,82 @@
 .\" Copyright 2007 Karel Zak <kzak@redhat.com>
 .\"
 .\" May be distributed under the GNU General Public License
-.TH BLOCKDEV 8 "Jun 2007" ""
+.TH BLOCKDEV 8 "Aug 2010" ""
 .SH NAME
 blockdev \- call block device ioctls from the command line
 .SH SYNOPSIS
 .B blockdev
-.RI [ options ]
-.I commands devices
+.RB [ \-q ]
+.RB [ \-v ]
+.IR command
+.RI [ command ...]
+.IR device
+.RI [ device ...]
 .br
 .B blockdev
 .B \-\-report
-.RI [ devices ]
+.RI [ device ...]
 .SH DESCRIPTION
 The utility
 .B blockdev
 allows one to call block device ioctls from the command line.
 .SH OPTIONS
-.TP
-.B \-V
+.IP "\fB\-V\fP"
 Print version and exit.
-.TP
-.B \-q
+.IP "\fB\-q\fP"
 Be quiet.
-.TP
-.B \-v
+.IP "\fB\-v\fP"
 Be verbose.
-.TP
-.B \-\-report
-Print a report for
-.IR devices .
-Note that the partition StartSec is in 512-byte sectors.
+.IP "\fB\-\-report\fP"
+Print a report for the specified device. It is possible to give multiple
+devices. If none is given, all devices which appear in /proc/partitions are
+shown. Note that the partition StartSec is in 512-byte sectors.
 .SH COMMANDS
-.TP
-.B \--setro
-Set read-only.
-.TP
-.B \--setrw
-Set read-write.
-.TP
-.B \--getro
-Get read-only. Print 1 if the device is read-only, 0 otherwise.
-.TP
-.B \--getss
-Print sectorsize in bytes - usually 512.
-.TP
-.B \--getbsz
+It is possible to give multiple devices and multiple commands.
+.IP "\fB\-\-flushbufs\fP"
+Flush buffers.
+.IP "\fB\-\-getalignoff\fP"
+Get alignment offset.
+.IP "\fB\-\-getbsz\fP"
 Print blocksize in bytes.
-.TP
-.BI \--setbsz " N"
-Set blocksize to
-.I N
-bytes.
-.TP
-.B \--getsize
-Print device size in sectors (BLKGETSIZE). Deprecated in favor of the
-.B \--getsz
-option.
-.TP
-.B \--getsize64
-Print device size in bytes (BLKGETSIZE64)
-.TP
-.B \--getsz
-Get size in 512-byte sectors (BLKGETSIZE64 / 512).
-.TP
-.BI \--setra " N"
-Set readahead to
-.I N
-512-byte sectors.
-.TP
-.B \--getra
+.IP "\fB\-\-getdiscardzeroes\fP"
+Get discard zeroes support status.
+.IP "\fB\-\-getfra\fP"
+Get filesystem readahead in 512-byte sectors.
+.IP "\fB\-\-getiomin\fP"
+Get minimum I/O size.
+.IP "\fB\-\-getioopt\fP"
+Get optimal I/O size.
+.IP "\fB\-\-getmaxsect\fP"
+Get max sectors per request
+.IP "\fB\-\-getpbsz\fP"
+Get physical block (sector) size.
+.IP "\fB\-\-getra\fP"
 Print readahead (in 512-byte sectors).
-.TP
-.BI \--setfra " N"
+.IP "\fB\-\-getro\fP"
+Get read-only. Print 1 if the device is read-only, 0 otherwise.
+.IP "\fB\-\-getsize64\fP"
+Print device size in bytes.
+.IP "\fB\-\-getsize\fP"
+Print device size (32-bit!) in sectors. Deprecated in favor of the --getsz option.
+.IP "\fB\-\-getss\fP"
+Print sectorsize in bytes - usually 512.
+.IP "\fB\-\-getsz\fP"
+Get size in 512-byte sectors.
+.IP "\fB\-\-rereadpt\fP"
+Seread partition table
+.IP "\fB\-\-setbsz\fP \fIbytes\fP"
+Set blocksize.
+.IP "\fB\-\-setfra\fP \fIsectors\fP"
 Set filesystem readahead (same like --setra on 2.6 kernels).
-.TP
-.B \--getfra
-Get filesystem readahead.
-.TP
-.B \--flushbufs
-Flush buffers.
-.TP
-.B \--rereadpt
-Reread partition table.
+.IP "\fB\-\-setra\fP \fIsectors\fP"
+Set readahead (in 512-byte sectors).
+.IP "\fB\-\-setro\fP"
+Set read-only.
+.IP "\fB\-\-setrw\fP"
+Set read-write.
 .SH AUTHOR
-blockdev was written by Andries E. Brouwer.
+blockdev was written by Andries E. Brouwer and rewrittent by Karel Zak.
 .SH AVAILABILITY
 The blockdev command is part of the util-linux-ng package and is available from
 ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.