Poul-Henning Kamp bfbb9ce670 Divorce "dev_t" from the "major|minor" bitmap, which is now called ... udev_t in the kernel but still called dev_t in userland. Provide functions to manipulate both types: major() umajor() minor() uminor() makedev() umakedev() dev2udev() udev2dev() For now they're functions, they will become in-line functions after one of the next two steps in this process. Return major/minor/makedev to macro-hood for userland. Register a name in cdevsw[] for the "filedescriptor" driver. In the kernel the udev_t appears in places where we have the major/minor number combination, (ie: a potential device: we may not have the driver nor the device), like in inodes, vattr, cdevsw registration and so on, whereas the dev_t appears where we carry around a reference to a actual device. In the future the cdevsw and the aliased-from vnode will be hung directly from the dev_t, along with up to two softc pointers for the device driver and a few houskeeping bits. This will essentially replace the current "alias" check code (same buck, bigger bang). A little stunt has been provided to try to catch places where the wrong type is being used (dev_t vs udev_t), if you see something not working, #undef DEVT_FASCIST in kern/kern_conf.c and see if it makes a difference. If it does, please try to track it down (many hands make light work) or at least try to reproduce it as simply as possible, and describe how to do that. Without DEVT_FASCIST I belive this patch is a no-op. Stylistic/posixoid comments about the userland view of the <sys/*.h> files welcome now, from userland they now contain the end result. Next planned step: make all dev_t's refer to the same devsw[] which means convert BLK's to CHR's at the perimeter of the vnodes and other places where they enter the game (bootdev, mknod, sysctl).		1999-05-11 19:55:07 +00:00
..
deadfs	Return ENOTTY instead of EBADF for ioctls on dead vnodes. This fixes	1998-11-22 09:19:07 +00:00
devfs	Divorce "dev_t" from the "major|minor" bitmap, which is now called	1999-05-11 19:55:07 +00:00
fdesc	Fix warnings in preparation for adding -Wall -Wcast-qual to the	1999-01-27 22:42:27 +00:00
fifofs	Back out DIAGNOSTIC changes.	1998-02-06 12:14:30 +00:00
kernfs	Divorce "dev_t" from the "major|minor" bitmap, which is now called	1999-05-11 19:55:07 +00:00
nullfs	Fix warnings in preparation for adding -Wall -Wcast-qual to the	1999-01-28 00:57:57 +00:00
portal	Remove declarations for undefined functions and a couple of unused	1999-01-12 11:49:30 +00:00
procfs	Make the type and map files claim 0 bytes size. Tar doesn't get confused	1999-05-04 08:01:55 +00:00
specfs	Divorce "dev_t" from the "major|minor" bitmap, which is now called	1999-05-11 19:55:07 +00:00
umapfs	Suser() simplification:	1999-04-27 11:18:52 +00:00
union	This code got moved as a result of confusion between union mounts and	1999-02-28 16:13:25 +00:00