Add Cybernet copyright.
OK'd-by: Chuck Jacobus <chuck@cybernet.com>
update_plex_state:
If any subdisk in the plex is initializing, set the plex to
initializing state. This gets rid of the ugly corrupt/degraded/up
transitions which previously occurred.
Desired-by: Steve Taylor <staylor@cybernet.com>
sddownstate:
Add new function, used by checksdstate.
checksdstate:
Let sddownstate decide what status to return.
Add Cybernet copyright.
OK'd-by: Chuck Jacobus <chuck@cybernet.com>
logrq: save device major and minor numbers to compensate for lost
dev_t.
launch_requests: Don't issue requests which are marked
XFR_BAD_SUBDISK. This may make things easier in bre().
bre:
Rearrange.
- Change some comments
- Recognize holes in plex structure. Formerly this could lead to
incorrect write to the plex. Return REQUEST_DEGRADED on a read
request, but carry on to the bitter end on a write request, and
mark the requests for the inaccessible subdisks with
XFR_BAD_SUBDISK.
- return REQUEST_EOF if the requested transfer goes beyond the end
of the plex. This is not an error, since other plexes may go
further into the volume address space.
build_read_request:
Handle REQUEST_DEGRADED returned from bre().
sdio:
Lock buffer before issuing the requests.
will only accept partitions of type 'vinum'.
format_config: Use the new %q format option in kvprintf, thus getting
rid of some of the filthiest code I've written in a long time. Also
remove the lltoa() function.
With-great-thanks-to: peter
format_config: Accept the fact that a subdisk might not be attached to
a plex, and save the config correctly.
vinum_scandisk: Scan all slices on a drive with a Microsoft partition
table. Only look at the compatibility slice if nothing was found in
the Microsoft slices.
This change removes a frequently employed method of shooting
yourself in the foot: people would decide that the Vinum drives
belonged on their own slice, and they wouldn't be able to start the
subsystem after a reboot. Documentation updates to follow.
initialize subdisks. Probably the plex-related subdisk type will die
a death.
vinumconfig.c:
Accept (and ignore) kernel state information in userland config
files. This saves a lot of error recovery and also makes it possible
to use the output of printconfig to create new configuration.
Remove checkdiskconfig(). It wasn't needed any more.
Start adding support for hot spare drives. You can't put anything on
them (yet).
Change message formats from %lld to %qd.
get_empty_sd: Initialize size to -1. Previously this was done in
config_subdisk, which is the wrong place.
start_config: set current drive, plex and volume to -1, thus stopping
update configurations from taking their defaults from old configs.
the device numbers are now minor number only, so that we can still
compare them after dev_t has turned into a blob.
Broken-by: dev_t changes
Reported-by: Vallo Kallaste <vallo@matti.ee>
"Niels Chr. Bank-Pedersen" <ncbp@bank-pedersen.dk>
Correct race condition between caller and daemon.
Tripped-over-by: Zach Heilig <zach@uffdaonline.net>
Bernd Walter <ticso@cicely.de>
Niels Chr. Bank-Pedersen <ncbp@bank-pedersen.dk>
lockmgr locks. This commit should be functionally equivalent to the old
semantics. That is, all buffer locking is done with LK_EXCLUSIVE
requests. Changes to take advantage of LK_SHARED and LK_RECURSIVE will
be done in future commits.
If the drive goes down, queue a close to the daemon. In many cases
this function gets called in process context, so it could do it
directly, but it's more trouble finding out where we came from than
getting the daemon to do it.
Don't bzero the buffer structure, it's been done already by
allocrqg.
sdio:
Build up a correct buffer header, don't steal linkages from system
buffer headers.
Noticed-by: mckusick
fix; it doesn't address the problem of removing the module. If you do
the following:
vinum stop
fsck /dev/vinum/VOLUME
you *will* get a system crash. What we need is a cdevsw_remove
corresponding to cdevsw_add, but that hasn't been written yet.
Submitted-by: phk
Made a new (inline) function devsw(dev_t dev) and substituted it.
Changed to the BDEV variant to this format as well: bdevsw(dev_t dev)
DEVFS will eventually benefit from this change too.
Virtualize bdevsw[] from cdevsw. bdevsw() is now an (inline)
function.
Join CDEV_MODULE and BDEV_MODULE to DEV_MODULE (please pay attention
to the order of the cmaj/bmaj arguments!)
Join CDEV_DRIVER_MODULE and BDEV_DRIVER_MODULE to DEV_DRIVER_MODULE
(ditto!)
(Next step will be to convert all bdev dev_t's to cdev dev_t's
before they get to do any damage^H^H^H^H^H^Hwork in the kernel.)
If a drive has gone down and has dirty buffers associated with it,
we'll get a panic when we try to vn_close it. Check for this
situation and discard any buffers; they're toast anyway.
Only complain about usage count if DEBUG_WARNINGS is set.
check_drive:
Change parameter name from drivename to devicename.
Get the check for a referenced drive right.
If the partition isn't a vinum drive, set the last error to ENODEV.
vinum_scandisk:
Change parameter name from drivename [] to devicename [].
1:
s/suser/suser_xxx/
2:
Add new function: suser(struct proc *), prototyped in <sys/proc.h>.
3:
s/suser_xxx(\([a-zA-Z0-9_]*\)->p_ucred, \&\1->p_acflag)/suser(\1)/
The remaining suser_xxx() calls will be scrutinized and dealt with
later.
There may be some unneeded #include <sys/cred.h>, but they are left
as an exercise for Bruce.
More changes to the suser() API will come along with the "jail" code.
