convert VOP_LOCK to vn_lock; add parameters to VOP_UNLOCK

new argument passing conventions. minor type size cleanup.

return types, 64-bit changes: ioctl cmd -> u_long, casts, etc.

return ENOSYS rather than EINVAL for non-existent system call

use new queue.h data structures

LEASE_CHECK => VOP_LEASE

correct management of ps_sig field
for tracing, clear pending signal before calling trace_req to avoid deadlock

in sendsig, pass ps_code when signum agrees with ps_sig (from Karels and Hibler)

typo

add USL's copyright notice

changes for 4.4BSD-Lite requested by USL

changes for 4.4BSD-Lite requested by USL

Cleanups for 4.4BSD-Lite

4.4BSD snapshot (revision 8.1); add 1993 to copyright

kinfo_proc.h is gone

set priorities correctly after signals (net2/sys/19)

do not return from sigsuspend prematurely

changed the name of exit() to exit1() because gcc2 thinks it
knows that exit() doesn't return.

add and use killproc when cannot exec a new process

make kernel includes standard

ANSIfy syscall args

volatile poisoning

delete USES

nothing to do in sigaltstack if no new stack given

merge in changes for Sparc