src/sys/miscfs/nullfs/null_vnops.c, branch release/4.0.0_cvs

This commit was manufactured by cvs2svn to create tag

2000-03-20T08:47:53+00:00

'RELENG_4_0_0_RELEASE'.

This commit was manufactured to restore the state of the 4.0-RELEASE image.
Releases prior to 5.3-RELEASE are omitting the secure/ and crypto/ subdirs.

Lock reporting and assertion changes.

1999-12-11T16:13:02+00:00

* lockstatus() and VOP_ISLOCKED() gets a new process argument and a new
  return value: LK_EXCLOTHER, when the lock is held exclusively by another
  process.
* The ASSERT_VOP_(UN)LOCKED family is extended to use what this gives them
* Extend the vnode_if.src format to allow more exact specification than
  locked/unlocked.

This commit should not do any semantic changes unless you are using
DEBUG_VFS_LOCKS.

Discussed with:	grog, mch, peter, phk
Reviewed by:	peter

Get rid of the NULLFS_DIAGNOSTIC option. This option was as useful as

1999-09-04T12:35:09+00:00

the other XXXFS_DIAGNOSTIC options (not very) and mostly controlled
tracing of normal operation.  Use `#ifdef DEBUG' for non-diagnostics
and `#ifdef DIAGNOSTIC' for diagnostics.

Converted the silly SAFTEY option into a new-style option by renaming it to

1999-08-30T07:08:04+00:00

DIAGNOSTIC.

Fixed an English style bug in the panic messages controlled by SAFETY.

$Id$ -> $FreeBSD$

1999-08-28T01:08:13+00:00

Make sure that stat(2) and friends always return a valid st_dev field.

1999-07-02T16:29:47+00:00

Pseudo-FS need not fill in the va_fsid anymore, the syscall code
will use the first half of the fsid, which now looks like a udev_t
with major 255.

Add a vnode argument to VOP_BWRITE to get rid of the last vnode

1999-06-16T23:27:55+00:00

operator special case. Delete special case code from vnode_if.sh,
vnode_if.src, umap_vnops.c, and null_vnops.c.

Fix warnings in preparation for adding -Wall -Wcast-qual to the

1999-01-28T00:57:57+00:00

    kernel compile

Fix warnings in preparation for adding -Wall -Wcast-qual to the

1999-01-27T22:42:27+00:00

        kernel compile

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.