Poul-Henning Kamp cd690b60de Device megapatch 6/6: ... This is what we came here for: Hang dev_t's from their cdevsw, refcount cdevsw and dev_t and generally keep track of things a lot better than we used to: Hold a cdevsw reference around all entrances into the device driver, this will be necessary to safely determine when we can unload driver code. Hold a dev_t reference while the device is open. KASSERT that we do not enter the driver on a non-referenced dev_t. Remove old D_NAG code, anonymous dev_t's are not a problem now. When destroy_dev() is called on a referenced dev_t, move it to dead_cdevsw's list. When the refcount drops, free it. Check that cdevsw->d_version is correct. If not, set all methods to the dead_*() methods to prevent entrance into driver. Print warning on console to this effect. The device driver may still explode if it is also incompatible with newbus, but in that case we probably didn't get this far in the first place.		2004-02-21 21:57:26 +00:00
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cd9660	Spell magic '16' number as IO_SEQSHIFT.	2004-01-19 20:03:43 +00:00
coda	Device megapatch 5/6:	2004-02-21 21:32:15 +00:00
deadfs
devfs	Report the correct length for symlink entries.	2004-02-19 19:09:52 +00:00
fdescfs	Locking for the per-process resource limits structure.	2004-02-04 21:52:57 +00:00
fifofs	Use "fip->fi_readers == 0 && fip->fi_writers == 0" as the condition for	2003-11-16 01:11:11 +00:00
hpfs	DuH!	2003-10-18 14:10:28 +00:00
msdosfs	Use size_t or ssize_t wherever appropriate instead of casting from int *	2004-02-19 09:56:58 +00:00
ntfs	Avoid sign extension when casting signed characters to unsigned wide	2003-12-16 01:52:54 +00:00
nullfs	Don't try to unlock the directory vnode in null_lookup() if the lock is	2004-01-11 23:44:32 +00:00
nwfs	Locking for the per-process resource limits structure.	2004-02-04 21:52:57 +00:00
portalfs
procfs	Locking for the per-process resource limits structure.	2004-02-04 21:52:57 +00:00
pseudofs	Fix a panic in pseudofs(9) that could occur when doing an I/O	2004-02-10 21:06:47 +00:00
smbfs	Fixes problems that occurred when a file was removed and a directory	2004-02-10 05:53:02 +00:00
specfs	Device megapatch 6/6:	2004-02-21 21:57:26 +00:00
udf	Re-arrange and consolidate some random debugging stuff	2003-12-07 05:04:49 +00:00
umapfs
unionfs	Do not allow operations which cause known file-system corruption.	2004-01-16 22:55:25 +00:00