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.
Fix a potential drive deadlock when saving config to a non-existent
drive.
Add debug calls to catch occasional deadlocks on drives. The problem
(above) is probably gone, but the debug checks remain for a while.
is probably gone, but the debug checks remain for a while.
update_plex_config: Catch yet another divide-by-zero problem when
detaching the last subdisk from a striped plex.
Uncovered-by: Michael Reifenberger <root@nihil.plaut.de>
