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16 Commits

Author SHA1 Message Date
David Greenman
334095ef1c Escentially a rewrite by John Dyson. This is disgusting, and John agrees, 
but the whole thing is, so what the hell. :-) This version is expected to
work.
 1995-04-19 10:31:18 +00:00
Poul-Henning Kamp
5511b2e4f3 A substantial change to the way this works. Not the "TEST_LABELING" is 
a option you can turn on and of on the fly, as is debugging.
 1995-03-11 09:32:45 +00:00
Bruce Evans
17fb427c08 Fake the geometry to be 32 sectors * 64 heads * (vn->sc_size / 2048) 
cylinders instead of vn->sc_size * 1 * 1.

Remove unnecessary tests of the unit numbern vnioctl().
 1995-03-04 11:08:26 +00:00
Poul-Henning Kamp
ac9dbeaf66 Missed a reference to numvnd. 
Thanks Ollivier.
 1995-03-02 01:04:38 +00:00
Poul-Henning Kamp
ee32cbed3b Less bogus allocation of softc to avoid races. 
Thanks for the hint David!
 1995-03-01 05:05:21 +00:00
Bruce Evans
a07f28e24e Remove YF comments. 1995-02-25 16:48:28 +00:00
Bruce Evans
268c424b23 Remove the #error that temporarily stopped this from supporting slices and 
labels.

Please test the slice/label features:
	cd /dev; sh MAKEDEV svn0
	cd /var/tmp; dd if=/dev/zero of=vnfile bs=8192 count=1024
	vnconfig -c /dev/rvn0 /var/tmp/vnfile
	fdisk /dev/rvn0  # invent a geometry, create one BSD partition
	disklabel -r -w vn0 floppy  # a convenient (bogus) label
	disklabel -e vn0  # edit label to match device
	newfs /dev/rvn0a
	mount /dev/vn0a /mnt
	...
The steps after the fdisk could name the device vn0s1 instead of vn0.
 1995-02-22 22:06:20 +00:00
Bruce Evans
59c0a09db6 Temporarily stop this compiling if the option TEST_LABELLING is defined 
so that new slice support code can be installed without risk of
corrupting vn devices (if any).
 1995-02-16 13:09:39 +00:00
Poul-Henning Kamp
5723344759 YF fix. 
Reviewed by:	phk
Submitted by:	yves@dutncp8.tn.tudelft.nl (Yves Fonk)
 1995-02-14 06:06:07 +00:00
David Greenman
d86d477fe6 Fixed incorrect bufsize assignment that was causing a panic. 
Submitted by:	John Dyson
 1995-02-13 04:25:46 +00:00
Poul-Henning Kamp
ba7d3b1476 Warning: vn doesn't work just now. I havn't found out why. This commit 
just removes a couple of unused functions.
 1995-01-30 05:31:04 +00:00
Bruce Evans
9a0f1b5bd5 Continue implementing disk slices and labels for the vn driver. Everything 
is supposed to work except "media removal" (shutting down the vn driver)
while some partitions are open.

Fix some errnos: return ENOTTY, not ENXIO for unknown ioctls; return
ENODEV, not ENXIO for the unsupported dump operation.
 1994-12-16 16:50:15 +00:00
Poul-Henning Kamp
22529dad0f An inconsequential #ifdef Bruce forgot. 1994-12-16 01:13:09 +00:00
Bruce Evans
a4a59c2b52 Implement disk slices and labels for the vn driver. This is intended mainly 
for testing and is only enabled if TEST_LABELLING is defined.  It won't
actually work until DOS goop is removed from ufs_disksubr.c.
 1994-12-12 00:23:11 +00:00
Poul-Henning Kamp
e419848b2c Avoid a panic if vn is configured as swapdev. Seems to work fine. 1994-12-06 06:47:32 +00:00
Poul-Henning Kamp
9020e0737c The vn driver from 4.4_lite 1994-12-04 20:08:35 +00:00