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50 Commits

Author SHA1 Message Date
Edward Tomasz Napierala
dc604f0cf6 Make it possible to resize md(4) devices. 
Reviewed by:	kib
Sponsored by:	FreeBSD Foundation
 2012-07-07 20:32:21 +00:00
Gavin Atkinson
b45c4eb9ae The -S option, to specify the sector size, has been usable on all types of 
memory disks since r135340.  Update the man page to reflect this.

Noticed by:	avg
MFC after:	3 days
 2012-06-27 12:19:28 +00:00
Joel Dahl
4228c8a2b1 Remove end of line whitespace. 2012-05-12 19:59:37 +00:00
Joel Dahl
5da4420931 mdoc: use Po and Pc macros instead of parens. Also avoid starting a line 
with Ns.
 2012-05-12 17:14:55 +00:00
Benjamin Kaduk
ac5b109f31 Fix a couple of style issues. Tweak grammar and markup while here. 
Approved by:	hrs (mentor)
 2012-04-09 01:20:50 +00:00
Dag-Erling Smørgrav
6c49c6cff2 Somewhere around the 473rd time I mistyped "mdconfig file" instead of 
"mdconfig -f file", I decided that it would be easier to make mdconfig
DWIM than to teach my fingers to type the correct command line.

MFC after:	3 weeks
 2011-04-29 22:40:11 +00:00
Joel Dahl
db28020476 Use "cylinder" instead of "cyl" for consistency. 
Reviewed by:	phk
 2010-11-13 15:28:44 +00:00
Edward Tomasz Napierala
a9ebb31183 Add the possibility to specify "-o force" with "mdconfig -du". 
Reviewed by:	scottl
Approved by:	rwatson (mentor)
Sponsored by:	FreeBSD Foundation
 2009-01-10 17:17:18 +00:00
Dmitry Morozovsky
c94b8307db Add -v (verbose) option to -l command, to show size and backing store 
of all md devices at one time.

Approved by:	phk
MFC after:	2 weeks
 2008-06-21 15:04:42 +00:00
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
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
Pawel Jakub Dawidek
0d79319a76 Allow to specify device size in bytes. 
MFC after:	1 week
 2005-01-22 20:02:01 +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
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
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
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
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
ebe789d61c Add a "-S sectorsize" option to enable Kirk to find a bug :-) 2003-03-03 13:05:00 +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
Tom Rhodes
ce66ddb763 s/filesystem/file system/g as discussed on -developers 2002-08-21 18:11:48 +00:00
Ralf S. Engelschall
32f28b1541 Replace extra call to "tunefs" with the equivalent of "newfs -U". 
Reviewed by:	phk
 2002-07-15 11:30:21 +00:00
Philippe Charnier
e1205e80e5 The .Nm utility 2002-07-06 19:34:18 +00:00
Ruslan Ermilov
b87581119e mdoc(7) police: removed (now gratuitous) .Xo/.Xc brackets. 2001-08-10 10:41:30 +00:00
Dima Dorfman
26a0ee75c6 Introduce a force option, MD_FORCE, that instructs the driver to 
bypass some extra anti-foot-shooting measures.  Currently, its only
effect is to allow detaching a device while it's still open (e.g.,
mounted).  This is useful for testing how the system reacts to a disk
suddenly going away, which can happen with some removeable media.

At this point, the force option is only checked on detach, so it
would've been possible to allow the option to be passed with the
MDIOCDETACH operation.  This was not done to allow the possibility of
having the force flag influence other tests in the future, which may
not necessarily deal with detaching the device.

Reviewed by:	sobomax
Approved by:	phk
 2001-08-07 19:23:16 +00:00
Dima Dorfman
7ebcc426ef Remove whitespace at EOL. 2001-07-15 07:53:42 +00:00
Ruslan Ermilov
9fe48c6e8d mdoc(7) police: removed HISTORY info from the .Os call. 2001-07-10 11:04:34 +00:00
Ruslan Ermilov
3832aecacb mdoc(7) police: add a missing An call. 2001-03-12 09:18:12 +00:00
Poul-Henning Kamp
e10469fef8 Make md(4) and mdconfig(8) take over the role of vn(4) and vnconfig(8) 
entirely as previously advertised.

md(4) adopted all assets of vn(4) some time back and has proper devfs
support and cloning abilities to boot.
 2001-03-09 20:09:28 +00:00
Poul-Henning Kamp
3f6f92161c Remove "autounit" from settable options, it's the default unless you 
specify -u.

Spotted by:	dcs
 2001-02-26 15:31:47 +00:00
Poul-Henning Kamp
174b5e9aec Make "md" and "mdctl" macroized parameters. 
Implement "-l" option to mdconfig which can list one or all md devices.

Submitted by:   Dima Dorfman <dima@unixfreak.org>
 2001-02-25 13:12:57 +00:00
Poul-Henning Kamp
3b42f2f3bb Duh, the version of mdconfig.c I committed came from the wrong machine. 
Commit the right version, but without the -b option which is too evil
for the present.

Remove -b and preload from the manpage as well.
 2001-01-28 20:17:46 +00:00
Poul-Henning Kamp
353f4b3966 Don't specify fragment size, it autosizes from the sectorsize. 
Remember to set mode 1777 on /tmp

Submitted by:	mjacob
 2001-01-28 20:03:02 +00:00
Ruslan Ermilov
739cdd4baa Mdoc(7)ify. 2001-01-10 14:53:46 +00:00
Poul-Henning Kamp
e06b153abe Add padding space and a version number to the md_ioctl structre for future 
extension.

Add ability to create a preload disk giving an address and a length
(suggested by imp)

Fix bug relating to very small md(4) devices.

Update md.c copyright to reflect the status of code copied from vn.c.
(noticed by dillon)
 2001-01-01 23:08:26 +00:00
Poul-Henning Kamp
c2ef0b73df Improve cmdline parsing and messages. 
Add a rudimentary man-page.  (I'm no mdoc wizard, feel free to attack my
mistakes and blunders)
 2000-12-31 11:20:49 +00:00