Commit Graph

126 Commits

Author SHA1 Message Date
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
Tom Rhodes
ce66ddb763 s/filesystem/file system/g as discussed on -developers 2002-08-21 18:11:48 +00:00
Warner Losh
9d010543f4 Don't use NULL where you really mean 0 to sysctlbyname. 2002-08-21 15:15:15 +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
Dag-Erling Smørgrav
d397408818 Usage style sweep: spell "usage" with a small 'u'.
Also change one case of blatant __progname abuse (several more remain)
This commit does not touch anything in src/{contrib,crypto,gnu}/.
2002-04-22 13:44:47 +00:00
Mike Barcroft
40dcc8608d Revert 1.20:
Memory disks may be used for other purposes besides newfs(8), so it
isn't helpful to require the minimum size meet newfs(8)'s criteria.
2002-03-21 12:03:09 +00:00
Mike Barcroft
6a1bd01754 Provide a proper error message in mdconfig(8) when a filesystem is too
small, instead of a less meaningful error in newfs(8).
2002-03-21 07:46:09 +00:00
Dima Dorfman
53d745bc7c Actually make use of the md_version field of 'struct mdio'. In order
not to needlessly break compatibility, decrement MDIOVERSION to 0.

Approved by:	phk
2001-12-20 06:38:21 +00:00
David E. O'Brien
2d68bf45bf Default to WARNS=2.
Binary builds that cannot handle this must explicitly set WARNS=0.

Reviewed by:	mike
2001-12-04 02:19:58 +00:00
Ruslan Ermilov
b87581119e mdoc(7) police: removed (now gratuitous) .Xo/.Xc brackets. 2001-08-10 10:41:30 +00:00
Dima Dorfman
3fa96e6678 Move all the prototypes to one place. 2001-08-07 19:27:46 +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
10b0e058bb Use MD_NAME and MDCTL_NAME constants where appropriate. 2001-07-18 13:32:38 +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
Dima Dorfman
c894b25a2f Constify mdmaybeload(), add a prototype for usage(), and get rid of a
sizeof(int) == sizeof(long) assumption; clamp down with WARNS=2.
2001-06-21 02:10:26 +00:00
Dima Dorfman
78baea25b2 Don't assume the length of MD_NAME is 2. 2001-06-21 01:39:01 +00:00
Dima Dorfman
2885b42173 Fail if -s isn't specified for an MD_MALLOC or MD_SWAP disk; the
driver itself obviously won't configure such a disk, but the error
returned (EDOM) is more cryptic to the average user than it should be.

Also assert that the argument to -u is in fact a valid unit; don't
just accept any string to mean 0.

Approved by:	phk
2001-06-21 01:36:09 +00:00
Ruslan Ermilov
0a5779d45b - Backout botched attempt to introduce MANSECT feature.
- MAN[1-9] -> MAN.
2001-03-26 14:33:27 +00:00
Ruslan Ermilov
fe655281c5 Set the default manual section for sbin/ to 8. 2001-03-20 18:13:31 +00:00
Ruslan Ermilov
3832aecacb mdoc(7) police: add a missing An call. 2001-03-12 09:18:12 +00:00
Maxim Sobolev
ed23a390c2 In the absence of explicit `-t type'' option assume that `-f file''
implies ``-t vnode''.

Approved by:	phk
2001-03-09 21:15:08 +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
83da2a90ae 1) If mdconfig isn't given an action argument, it assumes detach.
2) Running `mdconfig -l` without any attached devices results in
mdconfig printing "md0" to standard output.

Submitted by:	dd [1]

[1] no, not "dd(1)" but "Dima Dorfman"
2001-03-09 20:05:06 +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
a69134f24c Forgot to remove unneeded "intcmp" function. 2001-02-25 13:14:41 +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
57e9624ec9 Make md/mdconfig do kld.
Submitted by:	dcs
2001-02-24 16:26:41 +00:00
Poul-Henning Kamp
fb1023d670 Strip optional prefixes "/dev/" and "md" from the -u argument. 2001-01-31 08:41:18 +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
8f8def9e2c This is the first snapshot of the new all-singing-and-dancing md(4).
Using the mdconfig(8) program you can now configure memory disks
on malloc(9), swap or a file/vnode.  preloaded md disks also work
as usual.
2000-12-31 13:03:42 +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
Poul-Henning Kamp
70d586c091 Preliminary scaffolding for the new integrated vn+md device driver.
I decided to work on the md(4) driver and integrate the vn(4)
functionality into it mainly based on the name being more suitable.
Ideally 'vd' as in "virtual disk" would probably be the most logical
but our sound-master pointed out that this would cause uncontrollable
fits of giggles in the brits.  Another complication would the needed
changes to the ramdisk boot/root functionality.

The vn driver will stay around for some time after I complete this
merge for transition reasons, and I'll make it whine to people that
they should migrate to the md(4) driver for some time before it
dies.

The kernel part of the new md(4) driver will be committed after more
testing.
2000-12-28 20:57:57 +00:00