Date: Tue, 11 May 1999 12:55:09 -0700 (PDT) From: Poul-Henning Kamp <phk@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/coda coda.h coda_venus.c src/sys/dev/ata ata-disk.c src/sys/dev/ccd ccd.c src/sys/dev/vn vn.c src/sys/i386/apm apm.c src/sys/i386/i386 mem.c src/sys/i386/isa diskslice_machdep.c if_le.c src/sys/i386/isa/pcvt pcvt_hdr.h ... Message-ID: <199905111955.MAA72062@freefall.freebsd.org>
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phk 1999/05/11 12:55:08 PDT
Modified files:
sys/coda coda.h coda_venus.c
sys/dev/ata ata-disk.c
sys/dev/ccd ccd.c
sys/dev/vn vn.c
sys/i386/apm apm.c
sys/i386/i386 mem.c
sys/i386/isa diskslice_machdep.c if_le.c
sys/i386/isa/pcvt pcvt_hdr.h
sys/i386/linux linux_file.c linux_stats.c
sys/isofs/cd9660 cd9660_node.c cd9660_node.h cd9660_rrip.c
cd9660_vnops.c
sys/kern kern_conf.c kern_descrip.c kern_proc.c
subr_diskslice.c subr_dkbad.c
uipc_usrreq.c vfs_subr.c
sys/miscfs/devfs devfs_vnops.c
sys/miscfs/kernfs kernfs_vfsops.c
sys/miscfs/specfs spec_vnops.c specdev.h
sys/msdosfs msdosfs_denode.c msdosfs_vnops.c
sys/nfs nfs_serv.c nfs_subs.c nfs_vnops.c
sys/ntfs ntfs_ihash.c ntfs_vfsops.c ntfs_vnops.c
sys/sys conf.h param.h stat.h systm.h types.h
vnode.h
sys/ufs/mfs mfs_vfsops.c
sys/ufs/ufs ufs_ihash.c ufs_vnops.c
sys/vm device_pager.c
Log:
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).
Revision Changes Path
1.7 +2 -2 src/sys/coda/coda.h
1.7 +2 -2 src/sys/coda/coda_venus.c
1.10 +2 -2 src/sys/dev/ata/ata-disk.c
1.47 +2 -2 src/sys/dev/ccd/ccd.c
1.79 +2 -1 src/sys/dev/vn/vn.c
1.86 +2 -2 src/sys/i386/apm/apm.c
1.61 +2 -2 src/sys/i386/i386/mem.c
1.34 +2 -2 src/sys/i386/isa/diskslice_machdep.c
1.50 +2 -2 src/sys/i386/isa/if_le.c
1.32 +1 -1 src/sys/i386/isa/pcvt/pcvt_hdr.h
1.26 +5 -3 src/sys/i386/linux/linux_file.c
1.12 +2 -2 src/sys/i386/linux/linux_stats.c
1.28 +2 -2 src/sys/isofs/cd9660/cd9660_node.c
1.18 +2 -2 src/sys/isofs/cd9660/cd9660_node.h
1.15 +3 -3 src/sys/isofs/cd9660/cd9660_rrip.c
1.56 +2 -2 src/sys/isofs/cd9660/cd9660_vnops.c
1.37 +73 -2 src/sys/kern/kern_conf.c
1.61 +2 -2 src/sys/kern/kern_descrip.c
1.50 +3 -2 src/sys/kern/kern_proc.c
1.64 +2 -2 src/sys/kern/subr_diskslice.c
1.9 +2 -1 src/sys/kern/subr_dkbad.c
1.45 +2 -2 src/sys/kern/uipc_usrreq.c
1.194 +13 -10 src/sys/kern/vfs_subr.c
1.74 +4 -4 src/sys/miscfs/devfs/devfs_vnops.c
1.27 +1 -2 src/sys/miscfs/kernfs/kernfs_vfsops.c
1.86 +2 -2 src/sys/miscfs/specfs/spec_vnops.c
1.17 +2 -6 src/sys/miscfs/specfs/specdev.h
1.45 +2 -2 src/sys/msdosfs/msdosfs_denode.c
1.85 +2 -2 src/sys/msdosfs/msdosfs_vnops.c
1.77 +3 -3 src/sys/nfs/nfs_serv.c
1.74 +6 -6 src/sys/nfs/nfs_subs.c
1.129 +3 -3 src/sys/nfs/nfs_vnops.c
1.4 +2 -2 src/sys/ntfs/ntfs_ihash.c
1.5 +2 -2 src/sys/ntfs/ntfs_vfsops.c
1.4 +3 -3 src/sys/ntfs/ntfs_vnops.c
1.55 +13 -2 src/sys/sys/conf.h
1.47 +6 -1 src/sys/sys/param.h
1.16 +13 -5 src/sys/sys/stat.h
1.89 +13 -1 src/sys/sys/systm.h
1.31 +22 -20 src/sys/sys/types.h
1.87 +3 -3 src/sys/sys/vnode.h
1.62 +2 -2 src/sys/ufs/mfs/mfs_vfsops.c
1.19 +2 -2 src/sys/ufs/ufs/ufs_ihash.c
1.114 +3 -3 src/sys/ufs/ufs/ufs_vnops.c
1.41 +4 -4 src/sys/vm/device_pager.c
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