Commit Graph

86 Commits

Author SHA1 Message Date
Remko Lodder
3655c14d25 Every newline should start on it's own line. I didn't do that in the
previous commit, so make it happen now.

Prodded by:	brueffer
2007-11-28 12:29:59 +00:00
Remko Lodder
d18e01346c Sync with md(4)'s information regarding the swap backend.
PR:		docs/115721
Submitted by:	Stefan Lambrev <stefan.lambrev@moneybookers.com>
MFC After:	3 days
2007-11-28 12:11:36 +00:00
Florent Thoumie
69fcb5379c Fix exit code when using -l on a non-existent md(4) device.
PR:		conf/116177
Submitted by:	Remi Guyomarch <rguyom@pobox.com>
MFC after:	3 days
2007-11-16 17:40:24 +00:00
Giorgos Keramidas
d257bc4a71 * Expand the example descriptions, fix mdoc-bugs in
"(-a and -t vnode are implied)"
  and reuse it near the cd9660 example.
* Spell 'backing store' as two words.
2007-11-11 08:12:21 +00:00
Giorgos Keramidas
284096f773 Instead of hardcoding md10 as the device node in the cd9660 example,
use a trick submitted by Ruslan.

MFC after:	1 day
2007-11-09 18:02:51 +00:00
Giorgos Keramidas
5810c7ef77 Add an example which shows how mdconfig(8) can be used
to mount an ISO 9660 CD image file.

PR:		112691
Submitted by:	Warren Block, wblock at wonkity.com
MFC after:	3 days
2007-05-18 13:57:17 +00:00
Nick Hibma
7090e3d10c Kris suggested that swap is a better choice as a default than malloc.
MFC:	1 week
2007-02-20 22:04:23 +00:00
Nick Hibma
35ce0ff2f2 [Found the original diff I made, see previous commit for other part]
Assume '-a' and '-t malloc' flags for '-s <size>' (malloc ramdisk) if not
specified.

Reviewed by:	phk (some time ago)
MFC:		1 week
2007-02-20 21:29:30 +00:00
Nick Hibma
1253fe1ead Make attach the default for -f. That way
mdconfig -f image

works like a charm.

Reviewed by:	phk (some time ago)
MFC:		1 week
2007-02-20 21:04:12 +00:00
Poul-Henning Kamp
f07de1474c Make WITHOUT_DYNAMICROOT=foo work again: remember to reference
libbsdxml and libsbuf.
2006-04-01 16:34:45 +00:00
Jason Evans
c3345c667e Unbreak the build. 2006-03-27 05:33:35 +00:00
Wojciech A. Koszek
ea3d97ae67 For now, bring back some of the old bits as a fix for specifying md(4)
device number at creation time with -u option. Together with XMLizing
mdconfig(8), I broke this functionality.

This change is temporary. Complete fix will be commited soon.

Approved by:	cognet (mentor)
2006-03-27 00:46:22 +00:00
Wojciech A. Koszek
c27a895433 Teach md(4) and mdconfig(8) how to understand XML. Right now there won't be
a problem with listing large number of md(4) devices. Either 'list' or
'query' mode uses XML.

Additionally, new functionality was introduced. It's possible to pass
multiple devices to -u:

	# ./mdconfig -l -u md0,md1

Approved by:	cognet (mentor)
2006-03-26 23:21:11 +00:00
Wojciech A. Koszek
4bfd989f3e Keep proper order of includes. Additionally, sort them. Make functions used
in that file static.

Approved by:	cognet (mentor)
2006-03-26 22:52:36 +00:00
Pawel Jakub Dawidek
a921cb3130 Use kld(3) for loading geom_md.ko. 2006-02-18 11:40:24 +00:00
Dima Dorfman
7e06d7bcbc Sort the list results by the unit number. The list returned by the
kernel is in the order the devices were made, which is not useful to
the user. Also, remove the "%d more" test since the kernel does not
return the complete count in md_pad[0] (maybe it should?).

Submitted by:	Wojciech A. Koszek
2005-12-22 10:32:11 +00:00
Pawel Jakub Dawidek
d941425873 Rename GEOM class kernel module g_md.ko to geom_md.ko for consistency
with the rest.

mdconfig.c:	Simplify mdmaybeload() function.
mdioctl.h:	Removed (now unused) #define.
loader.conf:	Sort GEOM classes properly.

OK'ed by:	phk
2005-11-11 11:31:23 +00:00
Christian S.J. Peron
c313f09bfb When using files as backing stores for devices, and the user has requested the
device be created read+write, check to see if the backing store is read only
through the use of the access(2) system call. If this check fails returning
EACCES, EPERM or EROFS then gracefully downgrade the access to read only. Also
print a warning message to stderr, informing the user that the access mode
they requested is not available.

This behavior used to be handled by md(4) but was changed in revision 1.154

Discussed with:	pjd, phk, Dario Freni <saturnero at freesbie dot org>
Reviewed by:	phk
2005-08-30 16:45:32 +00:00
Pawel Jakub Dawidek
5d19b2f993 We can specify device size in bytes. Document this in usage. 2005-03-01 14:56:49 +00:00
Michael Reifenberger
d111a5c972 Document the terabyte "-s" parameter in the usage string.
Split the usage line to not exceed 80 chars.
2005-02-21 09:09:07 +00:00
Ruslan Ermilov
8d646af581 Sync program's usage() with manpage's SYNOPSIS. 2005-02-10 09:19:34 +00:00
Pawel Jakub Dawidek
0d79319a76 Allow to specify device size in bytes.
MFC after:	1 week
2005-01-22 20:02:01 +00:00
Pawel Jakub Dawidek
88b5b78d59 Rewrite piece of code which I committed some time ago that allows to
show file name for 'mdconfig -l -u <x>' command.
This allows to preserve API/ABI compatibility with version 0 (that's why
I changed version number back to 0) and will allow to merge this change
to RELENG_5.

MFC after:	5 days
2004-12-27 17:20:06 +00:00
Ruslan Ermilov
78bb116290 Sync usage() with manpage SYNOPSIS and code. 2004-11-13 17:08:52 +00:00
Dima Dorfman
df5f8fa751 Bump .Dd, replace missing letter, and prefer to use a verb that
matches the option letter.

Submitted by:	ru
Should know better by now:	dd
2004-11-06 14:03:37 +00:00
Pawel Jakub Dawidek
61a6eb62ec For file backed md(4) devices output their source file via
'mdconfig -l -u <unit>'.
Bump version number, as this change breaks ABI/API.
2004-11-06 13:07:02 +00:00
Dima Dorfman
e08f2053fc Update the description of -l to reflect reality. After mdconfig.c
1.25, -l without -u only lists the names, so specifying -u does more
than just limit the output to one device.
2004-11-06 10:21:12 +00:00
Dima Dorfman
9a777b93be If there aren't any devices to list, output nothing instead of an
empty line. This is consistent with other utilities.

While I'm here, remove artifacts of the previous list implementation.
2004-11-06 09:56:27 +00:00
Pawel Jakub Dawidek
b830359bc5 - Make md(4) 64-bit clean.
After this change it should be possible to use very big md(4) devices.
- Clean up and simplify the code a bit.
- Use humanize_number(3) to print size of md(4) devices.
- Add 't' suffix which stands for terabyte.
- Make '-S' to really work with all types of devices.
- Other minor changes.
2004-09-16 21:32:13 +00:00
John-Mark Gurney
d31ba6257b add support for documented readonly option...
also print out the option that is unknow so that the user knows what (s)he
did wrong..

MFC after:	3 days
2004-09-08 20:28:29 +00:00
John-Mark Gurney
a246f097d6 change the name of the md module, to g_md, introduce a define with the
name MD_MODNAME, and make mdconfig use this new define...
2004-08-09 06:45:20 +00:00
Poul-Henning Kamp
e869d3777e Give better diagnostic for problems with backing files. 2004-07-25 08:17:23 +00:00
Ruslan Ermilov
9806e23132 Mechanically kill hard sentence breaks. 2004-07-02 21:45:06 +00:00
Ruslan Ermilov
d04b5dfe6c Assorted markup, grammar, and spelling fixes. 2004-05-17 08:35:43 +00:00
Poul-Henning Kamp
7a6b2b6429 Fix a long-standing deadlock issue with vnode backed md(4) devices:
On vnode backed md(4) devices over a certain, currently undetermined
size relative to the buffer cache our "lemming-syncer" can provoke
a buffer starvation which puts the md thread to sleep on wdrain.

This generally tends to grind the entire system to a stop because the
event that is supposed to wake up the thread will not happen until a fair
bit of the piled up I/O requests in the system finish, and since a lot
of those are on a md(4) vnode backed device which is currently waiting
on wdrain until a fair amount of the piled up ... you get the picture.

The cure is to issue all VOP_WRITES on the vnode backing the device
with IO_SYNC.

In addition to more closely emulating a real disk device with a
non-lying write-cache, this makes the writes exempt from rate-limited
(there to avoid starving the buffer cache) and consequently prevents
the deadlock.

Unfortunately performance takes a hit.

Add "async" option to give people who know what they are doing the
old behaviour.
2004-03-10 20:41:09 +00:00
Poul-Henning Kamp
91f9647d49 s/bytes/byte/ 2004-02-19 19:53:07 +00:00
Poul-Henning Kamp
79ae25f61f Note that geometry can also be specified on vnode backed deviecs. 2004-01-12 10:54:09 +00:00
Poul-Henning Kamp
b4bca2d5ec Warn that big malloc disks are a panic(8) implementation.
Submitted by:	Colin Percival <cperciva@builder.daemonology.net>
(Who should really get his own bit one of these days!)

PR:	59988
2004-01-02 14:28:06 +00:00
Marc Fonvieille
84783ceaeb Add a full example of a file-backed disk creation, I used the Handbook's
example.

PR:		docs/51897
Submitted by:	Kevin Oberman <oberman@es.net>
2003-10-11 09:59:25 +00:00
Marc Fonvieille
8b23842d38 s/disklabel/bsdlabel where needed. 2003-10-11 08:24:07 +00:00
Poul-Henning Kamp
076cb6a8c9 Document the -x and -y options. 2003-09-21 19:05:35 +00:00
Alexander Kabaev
8a50130bbb Do not compare unsigned int values with ULONG_MAX. The comparison is
always false on 64bit platforms and GCC 3.3.1 issues warning there.
2003-07-11 05:47:05 +00:00
Robert Watson
f79c46d3f4 Add "-n" argument, which causes mdconfig to simply print the unit
number X, rather than mdX, making it easier to script tests that
use md devices but don't want to make assumptions about any existing
md use (such as in diskless environments).
2003-06-11 06:38:24 +00:00
Doug Barton
1b6c6f4aae Add .Xr's to mdmfs(8).
Submitted by:	Scot W. Hetzel <hetzels@westbend.net>
2003-04-27 01:46:56 +00:00
Poul-Henning Kamp
4e8bfe1482 Add a couple of undocumented test options to MD(4) to aid in regression
testting of GEOM.
2003-04-09 11:59:29 +00:00
Yaroslav Tykhiy
252bcf459d Give clearer diagnostics on some cases of invalid
combinations of mdconfig(8) command-line arguments.

Make mdconfig(8) accept "-a -f file -o options"
equally with "-a -f file" (assuming "-t vnode".)
2003-04-01 15:23:55 +00:00
Poul-Henning Kamp
ebe789d61c Add a "-S sectorsize" option to enable Kirk to find a bug :-) 2003-03-03 13:05:00 +00:00
Poul-Henning Kamp
e39eff98a0 Don't use the kern.disks sysctl to find a list of md devices, use the
MDIOCLIST ioctl instead.

Spotted by:	keramida
2003-01-27 08:01:08 +00:00
Giorgos Keramidas
f9e425b336 Make sure strsep() gets a nul-terminated string.
Reviewed by:	phk
2002-10-10 10:07:19 +00:00
Poul-Henning Kamp
ea396d5bfa Don't show disklabel in the examples, it is not necessary. 2002-09-26 21:29:10 +00:00