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freebsd/sys/isofs/cd9660
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
..
cd9660_bmap.c
cd9660_lookup.c Add support for Joliet extensions to the iso9660 fs. The related PR 1999-04-18 10:58:03 +00:00
cd9660_mount.h Add support for Joliet extensions to the iso9660 fs. The related PR 1999-04-18 10:58:03 +00:00
cd9660_node.c Divorce "dev_t" from the "major|minor" bitmap, which is now called 1999-05-11 19:55:07 +00:00
cd9660_node.h Divorce "dev_t" from the "major|minor" bitmap, which is now called 1999-05-11 19:55:07 +00:00
cd9660_rrip.c Divorce "dev_t" from the "major|minor" bitmap, which is now called 1999-05-11 19:55:07 +00:00
cd9660_rrip.h
cd9660_util.c The lowercasing of Joliet filenames was not a feature. 1999-05-08 04:35:47 +00:00
cd9660_vfsops.c I got tired of seeing all the cdevsw[major(foo)] all over the place. 1999-05-08 06:40:31 +00:00
cd9660_vnops.c Divorce "dev_t" from the "major|minor" bitmap, which is now called 1999-05-11 19:55:07 +00:00
iso_rrip.h Forward declare some structs so that this file is more self-sufficient. 1998-02-03 21:52:02 +00:00
iso.h Add support for Joliet extensions to the iso9660 fs. The related PR 1999-04-18 10:58:03 +00:00
TODO
TODO.hibler