calls to chdirec didn't pass 'p'.

together with vfs_subr.c (7.67.1.1) add reference checking

new calling convention for namei

check that mount structures are empty before deleteing them

lookup converted to new form

lease checks on various operations

use vn_close rather than vrele after vn_open

call ffree to free file structures

use FHASLOCK and SADVLCK to track processes using locks to save work in close

add support for opening files with advisory locks

name resolution checking (need kern/kern_malloc.c 7.25.1.1,
kern/vfs_lookup.c 7.31.1.1, kern/vfs_syscalls.c 7.70.1.1,
nfs/nfs_serv.c 7.40.1.1, nfs/nfs_syscalls.c 7.26.1.1,
ufs/ufs_vnops.c 7.64.1.1, a

name resolution checking (need kern/kern_malloc.c 7.25.1.1,
kern/vfs_lookup.c 7.31.1.1, kern/vfs_syscalls.c 7.70.1.1,
nfs/nfs_serv.c 7.40.1.1, nfs/nfs_syscalls.c 7.26.1.1,
ufs/ufs_vnops.c 7.64.1.1, and hp300/hp300/trap.c 7.14.1.1)

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rewrite rename to use new SAVESTART flag

unifdef NVM

Regularize comments

add proc pointers to appropriate VOP, vnode, and uio setup operations

give sync a return value; rm OFILE

more-or-less working with new proc & user structs

oflags-FOPEN => FFLAGS(oflags)

add conditional code for new VM so can share with old VM tree

add dynamically allocated file descriptors

lazy VATTR_NULL evaluation

update for new VM

have to check that renamed directory is not mounted on (from gmf@osf.org)

pass down index of opened file for datakit (gag)

handle p_dupfd as unsigned char