plexes_used and volumes_used. Now these fields are only informative,
and the <object>_allocated count is used for searches, etc. This also
required checking the object state before doing things with the
presumed object.
Problems-reported-by: Kiril Mitev <kiril@ideaglobal.com>
This solved a problem where 'vinum resetconfig' only reset half
the drives.
Reported-by: Brad Knowles <blk@skynet.be>
Karl Pielorz <kpielorz@tdx.co.uk>
Change the super device. We now have three super devices:
1. The normal superdevice used by vinum(8).
2. The superdevice used by vinum(8) when compiled with debug support.
3. The superdevice used by the daemon.
This method allows vinum(8) to determine debug mismatches. Also check
correctly for the device type. The old code did not check all bits of
the minor number.
Reported-by: a cast of thousands, most recently by Brad Knowles
<blk@skynet.be>.
vinumattach: Zero out tables after allocating them
Modify procedure at unload: if a vinum(8) has the superdev open, don't
close down. If only the daemon has it open, send the daemon a stop
request and wait for it to close the superdev, then unload.
In order to do this, create a second superdev which is opened by the
daemon. The open and close routines set a different bit in
vinum_conf.flags; otherwise the treatment is identical.
Remove opencount field in vol structure; replace by a flag bit, since
we can't count the number of opens.
Remove dead LKM grunge.
apparently in accordance with style(9).
Complained-about-by: bde
vinumopen: Change check for root user to a call to suser(9)
vinumclose: Remove check for root user.
Nitpicked-by: phk
Change from lkm to kld
Remove BROKEN_GDB kludge (it's not needed with klds)
Add code for interfacing with daemon
Modify manner of determining when module is idle
Modify device minor number encoding, use selector functions which also
permit anonymous plexes and subdisks.
Remove code for 2.x support.
Move vinum_scandisk to vinumio.c
Remove myproc kludge
Keep track of open volumes by flag, not by pid (the pids caused some
problems with the lock manager).
free_vinum:
Remove unmapped and defective regions from plexes.
Wait for daemon to stop before returning
vinumopen:
Don't refuse an open if the volume is already open.
kernel as a pseudo-device. The changes were:
- #ifdef DEBUG -> #ifdef VINUMDEBUG
- opt_vinum.h for holding above config variable
- Fixing up a few stray problems where DEBUG wasn't optional.
- config.c -> vinumconfig.c (there's already a config.o)
- Other *.c -> vinum*.c (wasn't strictly necessary, but done in case we end
up with something else conflicting later on and we might have to have yet
more repository copies of files).
- include file paths fixups.. (ie: get them all from the kernel tree
instead of partly from the kernel and partly from /usr/include/machine)
I've spoken with Greg about this.. I hope this doesn't mess him around
too much..
