src/sys/kern/vfs_init.c, branch release/3.3.0_cvs

This commit was manufactured by cvs2svn to create tag

1999-09-16T08:26:13+00:00

'RELENG_3_3_0_RELEASE'.

This commit was manufactured to restore the state of the 3.3-RELEASE image.
Releases prior to 5.3-RELEASE are omitting the secure/ and crypto/ subdirs.

$Id$ -> $FreeBSD$

1999-08-29T16:33:42+00:00

The "easy" fixes for compiling the kernel -Wunused: remove unreferenced static

1998-12-07T21:58:50+00:00

and local variables, goto labels, and functions declared but not defined.

Fixed the type of vfs_modevent (a little late, to match the corresponding

1998-11-15T15:18:30+00:00

change in sys/mount.h).

Make the vnode opv vector construction fully dynamic. Previously we

1998-11-10T09:04:09+00:00

leaked memory on each unload and were limited to items referenced in
the kernel copy of vnode_if.c.  Now a kernel module is free to create
it's own VOP_FOO() routines and the rest of the system will happily
deal with it, including passthrough layers like union/umap/etc.

Have VFS_SET() call a common vfs_modevent() handler rather than
inline duplicating the common code all over the place.

Have VNODEOP_SET() have the vnodeops removed at unload time (assuming a
module) so that the vop_t ** vector is reclaimed.

Slightly adjust the vop_t ** vectors so that calling slot 0 is a panic
rather than a page fault.  This could happen if VOP_something() was called
without *any* handlers being present anywhere (including in vfs_default.c).
slot 1 becomes the default vector for the vnodeop table.

TODO: reclaim zones on unload (eg: nfs code)

General tidy up: remove more unused code, update comments, simplify some

1998-11-04T03:18:10+00:00

routines a little.

Nitpicking and dusting performed on a train. Removes trivial warnings

1998-10-25T17:44:59+00:00

about unused variables, labels and other lint.

Fixed sysctl attachment for statically configured vfs's.

1998-10-25T10:52:34+00:00

Broken in:		previous commit

gulp. Jordan specifically OK'ed this..

1998-10-16T03:55:01+00:00

This is the bulk of the support for doing kld modules.  Two linker_sets
were replaced by SYSINIT()'s.  VFS's and exec handlers are self registered.
kld is now a superset of lkm.  I have converted most of them, they will
follow as a seperate commit as samples.
This all still works as a static a.out kernel using LKM's.

Taking the GENERIC kernel and commenting out MSDOSFS, CD9660{,_ROOT}, PROCFS,

1998-10-05T11:10:55+00:00

NFS_ROOT will produce kernel that cannot mount a UFS /.

Vfs type numbers must be distinct from VFS_GENERIC (and VFS_VFSCONF, but
that has the same value and should go away).

The problem happens because NFS is the first vfs (in sys/conf order) so it
gets type number 0 and conflicts harmfully with VFS_GENERIC which is also 0.
The conflict is apparently harmless in the usual case when another vfs
gets type number 0, because nfs is the only vfs that has sysctls.

Inital fix by:	Dima 
Reason why it worked by:	bde