read-only checking must be done by the filesystem layers

have to unlock node at end of inactive

simpler checkalias protocol

merge vfs_lock and vfs_busy; interlock mount points properly

convert VOP_LOCK to vn_lock; add parameters to VOP_UNLOCK and vget

no longer need nfs_lock* functions (use vop_nolock* instead)

use vop_nolock* locking functions

return error rather than panic when mountroot fails; use vfs_rootmountalloc

check for forcible unmount at syscall level

change mountlist to CIRCLEQ so we can do unmountall (from mycroft)

check for current nfs_args structure

add version field so we can detect old nfs_args structures

add vfsconf support

massive update to incorporate version 3 protocol from Rick Macklem

reverse arguments to VOP_LINK (to get them right)

nfs_revoke uses vop_revoke

add vop_revoke

fill in runp in bmap if requested to do so

update from Rick Macklem

avoid converting NOVAL (from karels)

conversion to queue.h list manipulation (from mycroft)

convert to vop call

bug fix from Macklem

bug fix from Macklem

add vop_lease