This is the kernel Lite/2 commit. There are some requisite userland

changes, so don't expect to be able to run the kernel as-is (very well)
without the appropriate Lite/2 userland changes.

The system boots and can mount UFS filesystems.

Untested: ext2fs, msdosfs, NFS
Known problems: Incorrect Berkeley ID strings in some files.
		Mount_std mounts will not work until the getfsent
		library routine is changed.

Reviewed by:	various people
Submitted by:	Jeffery Hsu <hsu@freebsd.org>

22 files changed, 375 insertions, 260 deletions

diff --git a/sys/nfs/nfs.h b/sys/nfs/nfs.h
index db41859..73a018c 100644
--- a/sys/nfs/nfs.h
+++ b/sys/nfs/nfs.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1989, 1993
+ * Copyright (c) 1989, 1993, 1995
  *	The Regents of the University of California.  All rights reserved.
  *
  * This code is derived from software contributed to Berkeley by
@@ -33,19 +33,19 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)nfs.h	8.1 (Berkeley) 6/10/93
+ *	@(#)nfs.h	8.4 (Berkeley) 5/1/95
  * $FreeBSD$
  */
 
 #ifndef _NFS_NFS_H_
 #define _NFS_NFS_H_
 
-#include <nfs/rpcv2.h>
-
 /*
  * Tunable constants for nfs
  */
 
+#ifdef KERNEL
+
 #define	NFS_MAXIOVEC	34
 #define NFS_TICKINTVL	5		/* Desired time for a tick (msec) */
 #define NFS_HZ		(hz / nfs_ticks) /* Ticks/sec */
@@ -69,7 +69,7 @@
 #define	NFS_DEFRAHEAD	1		/* Def. read ahead # blocks */
 #define	NFS_MAXRAHEAD	4		/* Max. read ahead # blocks */
 #define	NFS_MAXUIDHASH	64		/* Max. # of hashed uid entries/mp */
-#define	NFS_MAXASYNCDAEMON 	20	/* Max. number async_daemons runnable */
+#define	NFS_MAXASYNCDAEMON 	20	/* Max. number async_daemons runable */
 #define NFS_MAXGATHERDELAY	100	/* Max. write gather delay (msec) */
 #ifndef NFS_GATHERDELAY
 #define NFS_GATHERDELAY		10	/* Default write gather delay (msec) */
@@ -89,30 +89,9 @@
 
 /*
  * XXX
- * sys/buf.h should be edited to change B_APPENDWRITE --> B_NEEDCOMMIT, but
- * until then...
- * Same goes for sys/malloc.h, which needs M_NFSDIROFF,
- * M_NFSRVDESC and M_NFSBIGFH added.
- * The VA_EXCLUSIVE flag should be added for va_vaflags and set for an
- * exclusive create.
  * The B_INVAFTERWRITE flag should be set to whatever is required by the
  * buffer cache code to say "Invalidate the block after it is written back".
  */
-#ifndef B_NEEDCOMMIT
-#define B_NEEDCOMMIT	B_APPENDWRITE
-#endif
-#ifndef M_NFSRVDESC
-#define M_NFSRVDESC	M_TEMP
-#endif
-#ifndef M_NFSDIROFF
-#define M_NFSDIROFF	M_TEMP
-#endif
-#ifndef M_NFSBIGFH
-#define M_NFSBIGFH	M_TEMP
-#endif
-#ifndef VA_EXCLUSIVE
-#define VA_EXCLUSIVE	0
-#endif
 #ifdef __FreeBSD__
 #define	B_INVAFTERWRITE	B_NOCACHE
 #else
@@ -120,20 +99,6 @@
 #endif
 
 /*
- * These ifdefs try to handle the differences between the various 4.4BSD-Lite
- * based vfs interfaces.
- * btw: NetBSD-current does have a VOP_LEASDE(), but I don't know how to
- * differentiate between NetBSD-1.0 and NetBSD-current, so..
- * I also don't know about BSDi's 2.0 release.
- */
-#if !defined(HAS_VOPLEASE) && !defined(__FreeBSD__) && !defined(__NetBSD__)
-#define	HAS_VOPLEASE	1
-#endif
-#if !defined(HAS_VOPREVOKE) && !defined(__FreeBSD__) && !defined(__NetBSD__)
-#define HAS_VOPREVOKE	1
-#endif
-
-/*
  * The IO_METASYNC flag should be implemented for local file systems.
  * (Until then, it is nothin at all.)
  */
@@ -164,13 +129,114 @@
 #define NFS_SVCALLOC	256
 #define NFS_UIDALLOC	128
 
+#endif /* KERNEL */
+
+/*
+ * NFS mount option flags
+ */
+#define	NFSMNT_SOFT		0x00000001  /* soft mount (hard is default) */
+#define	NFSMNT_WSIZE		0x00000002  /* set write size */
+#define	NFSMNT_RSIZE		0x00000004  /* set read size */
+#define	NFSMNT_TIMEO		0x00000008  /* set initial timeout */
+#define	NFSMNT_RETRANS		0x00000010  /* set number of request retries */
+#define	NFSMNT_MAXGRPS		0x00000020  /* set maximum grouplist size */
+#define	NFSMNT_INT		0x00000040  /* allow interrupts on hard mount */
+#define	NFSMNT_NOCONN		0x00000080  /* Don't Connect the socket */
+#define	NFSMNT_NQNFS		0x00000100  /* Use Nqnfs protocol */
+#define	NFSMNT_NFSV3		0x00000200  /* Use NFS Version 3 protocol */
+#define	NFSMNT_KERB		0x00000400  /* Use Kerberos authentication */
+#define	NFSMNT_DUMBTIMR		0x00000800  /* Don't estimate rtt dynamically */
+#define	NFSMNT_LEASETERM	0x00001000  /* set lease term (nqnfs) */
+#define	NFSMNT_READAHEAD	0x00002000  /* set read ahead */
+#define	NFSMNT_DEADTHRESH	0x00004000  /* set dead server retry thresh */
+#define	NFSMNT_RESVPORT		0x00008000  /* Allocate a reserved port */
+#define	NFSMNT_RDIRPLUS		0x00010000  /* Use Readdirplus for V3 */
+#define	NFSMNT_READDIRSIZE	0x00020000  /* Set readdir size */
+#define	NFSMNT_INTERNAL		0xfffc0000  /* Bits set internally */
+#define NFSMNT_HASWRITEVERF	0x00040000  /* Has write verifier for V3 */
+#define NFSMNT_GOTPATHCONF	0x00080000  /* Got the V3 pathconf info */
+#define NFSMNT_GOTFSINFO	0x00100000  /* Got the V3 fsinfo */
+#define	NFSMNT_MNTD		0x00200000  /* Mnt server for mnt point */
+#define	NFSMNT_DISMINPROG	0x00400000  /* Dismount in progress */
+#define	NFSMNT_DISMNT		0x00800000  /* Dismounted */
+#define	NFSMNT_SNDLOCK		0x01000000  /* Send socket lock */
+#define	NFSMNT_WANTSND		0x02000000  /* Want above */
+#define	NFSMNT_RCVLOCK		0x04000000  /* Rcv socket lock */
+#define	NFSMNT_WANTRCV		0x08000000  /* Want above */
+#define	NFSMNT_WAITAUTH		0x10000000  /* Wait for authentication */
+#define	NFSMNT_HASAUTH		0x20000000  /* Has authenticator */
+#define	NFSMNT_WANTAUTH		0x40000000  /* Wants an authenticator */
+#define	NFSMNT_AUTHERR		0x80000000  /* Authentication error */
+
+/*
+ * Arguments to mount NFS
+ */
+#define NFS_ARGSVERSION	3		/* change when nfs_args changes */
+struct nfs_args {
+	int		version;	/* args structure version number */
+	struct sockaddr	*addr;		/* file server address */
+	int		addrlen;	/* length of address */
+	int		sotype;		/* Socket type */
+	int		proto;		/* and Protocol */
+	u_char		*fh;		/* File handle to be mounted */
+	int		fhsize;		/* Size, in bytes, of fh */
+	int		flags;		/* flags */
+	int		wsize;		/* write size in bytes */
+	int		rsize;		/* read size in bytes */
+	int		readdirsize;	/* readdir size in bytes */
+	int		timeo;		/* initial timeout in .1 secs */
+	int		retrans;	/* times to retry send */
+	int		maxgrouplist;	/* Max. size of group list */
+	int		readahead;	/* # of blocks to readahead */
+	int		leaseterm;	/* Term (sec) of lease */
+	int		deadthresh;	/* Retrans threshold */
+	char		*hostname;	/* server's name */
+};
+
+/*
+ * NFS mount option flags
+ */
+#define	NFSMNT_SOFT		0x00000001  /* soft mount (hard is default) */
+#define	NFSMNT_WSIZE		0x00000002  /* set write size */
+#define	NFSMNT_RSIZE		0x00000004  /* set read size */
+#define	NFSMNT_TIMEO		0x00000008  /* set initial timeout */
+#define	NFSMNT_RETRANS		0x00000010  /* set number of request retries */
+#define	NFSMNT_MAXGRPS		0x00000020  /* set maximum grouplist size */
+#define	NFSMNT_INT		0x00000040  /* allow interrupts on hard mount */
+#define	NFSMNT_NOCONN		0x00000080  /* Don't Connect the socket */
+#define	NFSMNT_NQNFS		0x00000100  /* Use Nqnfs protocol */
+#define	NFSMNT_NFSV3		0x00000200  /* Use NFS Version 3 protocol */
+#define	NFSMNT_KERB		0x00000400  /* Use Kerberos authentication */
+#define	NFSMNT_DUMBTIMR		0x00000800  /* Don't estimate rtt dynamically */
+#define	NFSMNT_LEASETERM	0x00001000  /* set lease term (nqnfs) */
+#define	NFSMNT_READAHEAD	0x00002000  /* set read ahead */
+#define	NFSMNT_DEADTHRESH	0x00004000  /* set dead server retry thresh */
+#define	NFSMNT_RESVPORT		0x00008000  /* Allocate a reserved port */
+#define	NFSMNT_RDIRPLUS		0x00010000  /* Use Readdirplus for V3 */
+#define	NFSMNT_READDIRSIZE	0x00020000  /* Set readdir size */
+#define	NFSMNT_INTERNAL		0xfffc0000  /* Bits set internally */
+#define NFSMNT_HASWRITEVERF	0x00040000  /* Has write verifier for V3 */
+#define NFSMNT_GOTPATHCONF	0x00080000  /* Got the V3 pathconf info */
+#define NFSMNT_GOTFSINFO	0x00100000  /* Got the V3 fsinfo */
+#define	NFSMNT_MNTD		0x00200000  /* Mnt server for mnt point */
+#define	NFSMNT_DISMINPROG	0x00400000  /* Dismount in progress */
+#define	NFSMNT_DISMNT		0x00800000  /* Dismounted */
+#define	NFSMNT_SNDLOCK		0x01000000  /* Send socket lock */
+#define	NFSMNT_WANTSND		0x02000000  /* Want above */
+#define	NFSMNT_RCVLOCK		0x04000000  /* Rcv socket lock */
+#define	NFSMNT_WANTRCV		0x08000000  /* Want above */
+#define	NFSMNT_WAITAUTH		0x10000000  /* Wait for authentication */
+#define	NFSMNT_HASAUTH		0x20000000  /* Has authenticator */
+#define	NFSMNT_WANTAUTH		0x40000000  /* Wants an authenticator */
+#define	NFSMNT_AUTHERR		0x80000000  /* Authentication error */
+
 /*
  * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs
  * should ever try and use it.
  */
 struct nfsd_args {
 	int	sock;		/* Socket to serve */
-	caddr_t	name;		/* Client address for connection based sockets */
+	caddr_t	name;		/* Client addr for connection based sockets */
 	int	namelen;	/* Length of name */
 };
 
@@ -200,6 +266,10 @@ struct nfsd_cargs {
 };
 
 /*
+ * XXX to allow amd to include nfs.h without nfsproto.h
+ */
+#ifdef NFS_NPROCS
+/*
  * Stats structure
  */
 struct nfsstats {
@@ -237,6 +307,7 @@ struct nfsstats {
 	int	srvnqnfs_getleases;
 	int	srvvop_writes;
 };
+#endif
 
 /*
  * Flags for nfssvc() system call.
@@ -267,7 +338,7 @@ struct nfsstats {
  * such as SIGALRM will not expect file I/O system calls to be interrupted
  * by them and break.
  */
-#if defined(KERNEL) || defined(_KERNEL)
+#ifdef KERNEL
 
 struct uio; struct buf; struct vattr; struct nameidata;	/* XXX */
 
@@ -482,6 +553,8 @@ extern int nfsd_head_flag;
  	 !bcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \
 		sizeof (struct ucred)))
 
+
+int	nfs_init __P((struct vfsconf *vfsp));
 int	nfs_reply __P((struct nfsreq *));
 int	nfs_getreq __P((struct nfsrv_descript *,struct nfsd *,int));
 int	nfs_send __P((struct socket *,struct mbuf *,struct mbuf *,struct nfsreq *));
@@ -516,14 +589,12 @@ int	nfs_adv __P((struct mbuf **,caddr_t *,int,int));
 void	nfs_nhinit __P((void));
 void	nfs_timer __P((void*));
 u_long nfs_hash __P((nfsfh_t *,int));
-void	nfsrv_slpderef __P((struct nfssvc_sock *slp));
 int	nfsrv_dorec __P((struct nfssvc_sock *,struct nfsd *,struct nfsrv_descript **));
-void	nfsrv_cleancache __P((void));
 int	nfsrv_getcache __P((struct nfsrv_descript *,struct nfssvc_sock *,struct mbuf **));
-int	nfs_init __P((void));
 void	nfsrv_updatecache __P((struct nfsrv_descript *,int,struct mbuf *));
+void	nfsrv_cleancache __P((void));
 int	nfs_connect __P((struct nfsmount *,struct nfsreq *));
-void	nfs_disconnect __P((struct nfsmount *nmp));
+void	nfs_disconnect __P((struct nfsmount *));
 int	nfs_getattrcache __P((struct vnode *,struct vattr *));
 int	nfsm_strtmbuf __P((struct mbuf **,char **,char *,long));
 int	nfs_bioread __P((struct vnode *,struct uio *,int,struct ucred *));
@@ -531,7 +602,6 @@ int	nfsm_uiotombuf __P((struct uio *,struct mbuf **,int,caddr_t *));
 void	nfsrv_init __P((int));
 void	nfs_clearcommit __P((struct mount *));
 int	nfsrv_errmap __P((struct nfsrv_descript *, int));
-void	nfsrv_rcv __P((struct socket *so, caddr_t arg, int waitflag));
 void	nfsrvw_sort __P((gid_t [],int));
 void	nfsrv_setcred __P((struct ucred *,struct ucred *));
 int	nfs_writebp __P((struct buf *,int));
@@ -594,8 +664,8 @@ int	nfsrv_symlink __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
 			   struct proc *procp, struct mbuf **mrq));
 int	nfsrv_write __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
 			 struct proc *procp, struct mbuf **mrq));
-
-
+void	nfsrv_rcv __P((struct socket *so, caddr_t arg, int waitflag));
+void	nfsrv_slpderef __P((struct nfssvc_sock *slp));
 #endif	/* KERNEL */
 
 #endif
diff --git a/sys/nfs/nfs_bio.c b/sys/nfs/nfs_bio.c
index d67a3c0..0f636b0 100644
--- a/sys/nfs/nfs_bio.c
+++ b/sys/nfs/nfs_bio.c
@@ -33,10 +33,11 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)nfs_bio.c	8.5 (Berkeley) 1/4/94
+ *	@(#)nfs_bio.c	8.9 (Berkeley) 3/30/95
  * $FreeBSD$
  */
 
+
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/resourcevar.h>
@@ -66,19 +67,6 @@ extern int nfs_numasync;
 extern struct nfsstats nfsstats;
 
 /*
- * Ifdefs for FreeBSD-current's merged VM/buffer cache. It is unfortunate
- * that this isn't done inside getblk() and brelse() so these calls
- * wouldn't need to be here.
- */
-#ifdef B_VMIO
-#define vnode_pager_uncache(vp)
-#else
-#define vfs_busy_pages(bp, f)
-#define vfs_unbusy_pages(bp)
-#define vfs_dirty_pages(bp)
-#endif
-
-/*
  * Vnode op for read using bio
  * Any similarity to readip() is purely coincidental
  */
@@ -195,7 +183,7 @@ nfs_bioread(vp, uio, ioflag, cred)
 		case VDIR:
 			break;
 		default:
-			printf(" NQNFSNONCACHE: type %x unexpected\n",
+			printf(" NQNFSNONCACHE: type %x unexpected\n",	
 				vp->v_type);
 		};
 	    }
@@ -225,9 +213,8 @@ nfs_bioread(vp, uio, ioflag, cred)
 				    vfs_unbusy_pages(rabp);
 				    brelse(rabp);
 				}
-			    } else {
+			    } else
 				brelse(rabp);
-			    }
 			}
 		    }
 		}
@@ -270,6 +257,7 @@ again:
 		if (not_readin && n > 0) {
 			if (on < bp->b_validoff || (on + n) > bp->b_validend) {
 				bp->b_flags |= B_NOCACHE;
+				bp->b_flags |= B_INVAFTERWRITE;
 				if (bp->b_dirtyend > 0) {
 				    if ((bp->b_flags & B_DELWRI) == 0)
 					panic("nfsbioread");
@@ -475,10 +463,6 @@ nfs_write(ap)
 	 */
 	biosize = vp->v_mount->mnt_stat.f_iosize;
 	do {
-
-		/*
-		 * XXX make sure we aren't cached in the VM page cache
-		 */
 		/*
 		 * Check for a valid write lease.
 		 */
diff --git a/sys/nfs/nfs_common.c b/sys/nfs/nfs_common.c
index 1feadd6..5f83bf5 100644
--- a/sys/nfs/nfs_common.c
+++ b/sys/nfs/nfs_common.c
@@ -100,6 +100,7 @@ enum vtype nv3tov_type[8]= {
 	VNON, VREG, VDIR, VBLK, VCHR, VLNK, VSOCK, VFIFO
 };
 
+int nfs_mount_type;
 int nfs_ticks;
 
 struct nfs_reqq nfs_reqq;
@@ -1093,7 +1094,8 @@ nfsm_strtmbuf(mb, bpos, cp, siz)
  * Called once to initialize data structures...
  */
 int
-nfs_init()
+nfs_init(vfsp)
+	struct vfsconf *vfsp;
 {
 	register int i;
 
@@ -1116,6 +1118,7 @@ nfs_init()
 		printf("struct nfsuid bloated (> %dbytes)\n",NFS_UIDALLOC);
 		printf("Try unionizing the nu_nickname and nu_flag fields\n");
 	}
+	nfs_mount_type = vfsp->vfc_typenum;
 	nfsrtt.pos = 0;
 	rpc_vers = txdr_unsigned(RPC_VER2);
 	rpc_call = txdr_unsigned(RPC_CALL);
@@ -1170,10 +1173,10 @@ nfs_init()
 	 * of the system can call us, if we are loadable.
 	 */
 #ifndef NFS_NOSERVER
-	lease_check = nfs_lease_check;
+	lease_check_hook = nqnfs_vop_lease_check;
 #endif
 	lease_updatetime = nfs_lease_updatetime;
-	vfsconf[MOUNT_NFS]->vfc_refcount++; /* make us non-unloadable */
+	vfsp->vfc_refcount++; /* make us non-unloadable */
 #ifdef VFS_LKM
 	sysent[SYS_nfssvc].sy_narg = 2;
 	sysent[SYS_nfssvc].sy_call = nfssvc;
@@ -1212,7 +1215,6 @@ nfs_loadattrcache(vpp, mdp, dposp, vaper)
 	register struct vattr *vap;
 	register struct nfs_fattr *fp;
 	register struct nfsnode *np;
-	register struct nfsnodehashhead *nhpp;
 	register long t1;
 	caddr_t cp2;
 	int error = 0, rdev;
@@ -1222,6 +1224,7 @@ nfs_loadattrcache(vpp, mdp, dposp, vaper)
 	struct timespec mtime;
 	struct vnode *nvp;
 	int v3 = NFS_ISV3(vp);
+	struct proc *p = curproc;
 
 	md = *mdp;
 	t1 = (mtod(md, caddr_t) + md->m_len) - *dposp;
@@ -1284,7 +1287,7 @@ nfs_loadattrcache(vpp, mdp, dposp, vaper)
 		 * then release it here.
 		 */
 		if (vtyp != VREG && VOP_ISLOCKED(vp))
-			VOP_UNLOCK(vp);
+			VOP_UNLOCK(vp, 0, p);
 		vp->v_type = vtyp;
 		if (vp->v_type == VFIFO) {
 			vp->v_op = fifo_nfsv2nodeop_p;
@@ -1295,8 +1298,11 @@ nfs_loadattrcache(vpp, mdp, dposp, vaper)
 			if (nvp) {
 				/*
 				 * Discard unneeded vnode, but save its nfsnode.
+				 * Since the nfsnode does not have a lock, its
+				 * vnode lock has to be carried over.
 				 */
-				LIST_REMOVE(np, n_hash);
+				nvp->v_vnlock = vp->v_vnlock;
+				vp->v_vnlock = NULL;
 				nvp->v_data = vp->v_data;
 				vp->v_data = NULL;
 				vp->v_op = spec_vnodeop_p;
@@ -1306,8 +1312,6 @@ nfs_loadattrcache(vpp, mdp, dposp, vaper)
 				 * Reinitialize aliased node.
 				 */
 				np->n_vnode = nvp;
-				nhpp = NFSNOHASH(nfs_hash(np->n_fhp, np->n_fhsize));
-				LIST_INSERT_HEAD(nhpp, np, n_hash);
 				*vpp = vp = nvp;
 			}
 		}
@@ -1714,13 +1718,14 @@ nfsrv_fhtovp(fhp, lockflag, vpp, cred, slp, nam, rdonlyp, kerbflag)
 	int *rdonlyp;
 	int kerbflag;
 {
+	struct proc *p = curproc; /* XXX */
 	register struct mount *mp;
 	register int i;
 	struct ucred *credanon;
 	int error, exflags;
 
 	*vpp = (struct vnode *)0;
-	mp = getvfs(&fhp->fh_fsid);
+	mp = vfs_getvfs(&fhp->fh_fsid);
 	if (!mp)
 		return (ESTALE);
 	error = VFS_FHTOVP(mp, &fhp->fh_fid, nam, vpp, &exflags, &credanon);
@@ -1751,7 +1756,7 @@ nfsrv_fhtovp(fhp, lockflag, vpp, cred, slp, nam, rdonlyp, kerbflag)
 	nfsrv_object_create(*vpp);
 
 	if (!lockflag)
-		VOP_UNLOCK(*vpp);
+		VOP_UNLOCK(*vpp, 0, p);
 	return (0);
 }
 
@@ -1947,3 +1952,4 @@ nfsrv_object_create(struct vnode *vp) {
 	return vfs_object_create(vp, curproc, curproc?curproc->p_ucred:NULL, 1);
 }
 #endif /* NFS_NOSERVER */
+
diff --git a/sys/nfs/nfs_common.h b/sys/nfs/nfs_common.h
index ac1a159..cd37c59 100644
--- a/sys/nfs/nfs_common.h
+++ b/sys/nfs/nfs_common.h
@@ -33,10 +33,11 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)nfsm_subs.h	8.1 (Berkeley) 6/16/93
+ *	@(#)nfsm_subs.h	8.2 (Berkeley) 3/30/95
  * $FreeBSD$
  */
 
+
 #ifndef _NFS_NFSM_SUBS_H_
 #define _NFS_NFSM_SUBS_H_
 
diff --git a/sys/nfs/nfs_node.c b/sys/nfs/nfs_node.c
index 2ddb4a6..8403f55 100644
--- a/sys/nfs/nfs_node.c
+++ b/sys/nfs/nfs_node.c
@@ -33,10 +33,11 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)nfs_node.c	8.2 (Berkeley) 12/30/93
+ *	@(#)nfs_node.c	8.6 (Berkeley) 5/22/95
  * $FreeBSD$
  */
 
+
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/proc.h>
@@ -108,7 +109,8 @@ nfs_nget(mntp, fhp, fhsize, npp)
 	int fhsize;
 	struct nfsnode **npp;
 {
-	register struct nfsnode *np;
+	struct proc *p = curproc;	/* XXX */
+	struct nfsnode *np;
 	struct nfsnodehashhead *nhpp;
 	register struct vnode *vp;
 	struct vnode *nvp;
@@ -121,7 +123,7 @@ loop:
 		    bcmp((caddr_t)fhp, (caddr_t)np->n_fhp, fhsize))
 			continue;
 		vp = NFSTOV(np);
-		if (vget(vp, 1))
+		if (vget(vp, LK_EXCLUSIVE, p))
 			goto loop;
 		*npp = np;
 		return(0);
@@ -178,7 +180,7 @@ loop:
 	/*
 	 * Lock the new nfsnode.
 	 */
-	VOP_LOCK(vp);
+	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
 
 	return (0);
 }
@@ -187,6 +189,7 @@ int
 nfs_inactive(ap)
 	struct vop_inactive_args /* {
 		struct vnode *a_vp;
+		struct proc *a_p;
 	} */ *ap;
 {
 	register struct nfsnode *np;
@@ -213,6 +216,7 @@ nfs_inactive(ap)
 	}
 	np->n_flag &= (NMODIFIED | NFLUSHINPROG | NFLUSHWANT | NQNFSEVICTED |
 		NQNFSNONCACHE | NQNFSWRITE);
+	VOP_UNLOCK(ap->a_vp, 0, ap->a_p);
 	return (0);
 }
 
@@ -265,6 +269,7 @@ nfs_reclaim(ap)
 	return (0);
 }
 
+#if 0
 /*
  * Lock an nfsnode
  */
@@ -355,6 +360,7 @@ nfs_islocked(ap)
 {
 	return VTONFS(ap->a_vp)->n_flag & NLOCKED ? 1 : 0;
 }
+#endif
 
 /*
  * Nfs abort op, called after namei() when a CREATE/DELETE isn't actually
diff --git a/sys/nfs/nfs_nqlease.c b/sys/nfs/nfs_nqlease.c
index 2fa8360..1740b82 100644
--- a/sys/nfs/nfs_nqlease.c
+++ b/sys/nfs/nfs_nqlease.c
@@ -33,10 +33,11 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)nfs_nqlease.c	8.3 (Berkeley) 1/4/94
+ *	@(#)nfs_nqlease.c	8.9 (Berkeley) 5/20/95
  * $FreeBSD$
  */
 
+
 /*
  * References:
  *	Cary G. Gray and David R. Cheriton, "Leases: An Efficient Fault-Tolerant
@@ -84,11 +85,8 @@ struct vop_lease_args;
 
 static int	nqsrv_cmpnam __P((struct nfssvc_sock *,struct mbuf *,
 			struct nqhost *));
-extern void	nqnfs_lease_check __P((struct vnode *vp, struct proc *p,
-				       struct ucred *cred, int flag));
 extern void	nqnfs_lease_updatetime __P((int deltat));
 static int	nqnfs_vacated __P((struct vnode *vp, struct ucred *cred));
-extern int	nqnfs_vop_lease_check __P((struct vop_lease_args *ap));
 static void	nqsrv_addhost __P((struct nqhost *lph, struct nfssvc_sock *slp,
 				   struct mbuf *nam));
 static void	nqsrv_instimeq __P((struct nqlease *lp, u_long duration));
@@ -136,6 +134,7 @@ extern nfstype nfsv3_type[9];
 extern struct nfssvc_sock *nfs_udpsock, *nfs_cltpsock;
 extern int nfsd_waiting;
 extern struct nfsstats nfsstats;
+extern int nfs_mount_type;
 
 #define TRUE	1
 #define	FALSE	0
@@ -349,7 +348,6 @@ nqnfs_lease_check(vp, p, cred, flag)
 
 #endif /* NFS_NOSERVER */
 
-#ifdef HAS_VOPLEASE
 int
 nqnfs_vop_lease_check(ap)
 	struct vop_lease_args /* {
@@ -367,7 +365,6 @@ nqnfs_vop_lease_check(ap)
 	    NQLOCALSLP, ap->a_p, (struct mbuf *)0, &cache, &frev, ap->a_cred);
 	return (0);
 }
-#endif
 
 /*
  * Add a host to an nqhost structure for a lease.
@@ -1090,7 +1087,7 @@ nqnfs_clientd(nmp, cred, ncd, flag, argp, p)
 			vp = NFSTOV(np);
 			vpid = vp->v_id;
 			if (np->n_expiry < time.tv_sec) {
-			   if (vget(vp, 1) == 0) {
+			   if (vget(vp, LK_EXCLUSIVE, p) == 0) {
 			     nmp->nm_inprog = vp;
 			     if (vpid == vp->v_id) {
 				CIRCLEQ_REMOVE(&nmp->nm_timerhead, np, n_timer);
@@ -1115,7 +1112,7 @@ nqnfs_clientd(nmp, cred, ncd, flag, argp, p)
 			} else if ((np->n_expiry - NQ_RENEWAL) < time.tv_sec) {
 			    if ((np->n_flag & (NQNFSWRITE | NQNFSNONCACHE))
 				 == NQNFSWRITE && vp->v_dirtyblkhd.lh_first &&
-				 vget(vp, 1) == 0) {
+				 vget(vp, LK_EXCLUSIVE, p) == 0) {
 				 nmp->nm_inprog = vp;
 				 if (vpid == vp->v_id &&
 				     nqnfs_getlease(vp, ND_WRITE, cred, p)==0)
@@ -1179,9 +1176,10 @@ void
 nqnfs_lease_updatetime(deltat)
 	register int deltat;
 {
-	register struct nqlease *lp;
-	register struct nfsnode *np;
-	struct mount *mp;
+	struct proc *p = curproc;	/* XXX */
+	struct nqlease *lp;
+	struct nfsnode *np;
+	struct mount *mp, *nxtmp;
 	struct nfsmount *nmp;
 	int s;
 
@@ -1197,13 +1195,13 @@ nqnfs_lease_updatetime(deltat)
 	 * Search the mount list for all nqnfs mounts and do their timer
 	 * queues.
 	 */
-	for (mp = mountlist.cqh_first; mp != (void *)&mountlist;
-		 mp = mp->mnt_list.cqe_next) {
-#ifdef __NetBSD__
-		if (!strcmp(&mp->mnt_stat.f_fstypename[0], MOUNT_NFS)) {
-#else
-		if (mp->mnt_stat.f_fsid.val[1] == MOUNT_NFS) {
-#endif
+	simple_lock(&mountlist_slock);
+	for (mp = mountlist.cqh_first; mp != (void *)&mountlist; mp = nxtmp) {
+		if (vfs_busy(mp, LK_NOWAIT, &mountlist_slock, p)) {
+			nxtmp = mp->mnt_list.cqe_next;
+			continue;
+		}
+		if (mp->mnt_stat.f_type == nfs_mount_type) {
 			nmp = VFSTONFS(mp);
 			if (nmp->nm_flag & NFSMNT_NQNFS) {
 				for (np = nmp->nm_timerhead.cqh_first;
@@ -1213,7 +1211,11 @@ nqnfs_lease_updatetime(deltat)
 				}
 			}
 		}
+		simple_lock(&mountlist_slock);
+		nxtmp = mp->mnt_list.cqe_next;
+		vfs_unbusy(mp, p);
 	}
+	simple_unlock(&mountlist_slock);
 }
 
 /*
diff --git a/sys/nfs/nfs_serv.c b/sys/nfs/nfs_serv.c
index 3946778..28a705a 100644
--- a/sys/nfs/nfs_serv.c
+++ b/sys/nfs/nfs_serv.c
@@ -1723,7 +1723,7 @@ nfsrv_remove(nfsd, slp, procp, mrq)
 		}
 out:
 		if (!error) {
-			vnode_pager_uncache(vp);
+			vnode_pager_uncache(vp, procp);
 			nqsrv_getl(nd.ni_dvp, ND_WRITE);
 			nqsrv_getl(vp, ND_WRITE);
 
@@ -1900,7 +1900,7 @@ out:
 		nqsrv_getl(tdvp, ND_WRITE);
 		if (tvp) {
 			nqsrv_getl(tvp, ND_WRITE);
-			(void) vnode_pager_uncache(tvp);
+			(void) vnode_pager_uncache(tvp, procp);
 		}
 		error = VOP_RENAME(fromnd.ni_dvp, fromnd.ni_vp, &fromnd.ni_cnd,
 				   tond.ni_dvp, tond.ni_vp, &tond.ni_cnd);
@@ -2027,11 +2027,7 @@ out:
 	if (!error) {
 		nqsrv_getl(vp, ND_WRITE);
 		nqsrv_getl(xp, ND_WRITE);
-#if defined(__NetBSD__) || defined(__FreeBSD__)
-		error = VOP_LINK(nd.ni_dvp, vp, &nd.ni_cnd);
-#else
 		error = VOP_LINK(vp, nd.ni_dvp, &nd.ni_cnd);
-#endif
 	} else {
 		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
 		if (nd.ni_dvp == nd.ni_vp)
@@ -2479,7 +2475,7 @@ nfsrv_readdir(nfsd, slp, procp, mrq)
 	int siz, cnt, fullsiz, eofflag, rdonly, cache, ncookies;
 	int v3 = (nfsd->nd_flag & ND_NFSV3);
 	u_quad_t frev, off, toff, verf;
-	u_int *cookies = NULL, *cookiep;
+	u_long *cookies = NULL, *cookiep;
 
 	fhp = &nfh.fh_generic;
 	nfsm_srvmtofh(fhp);
@@ -2520,7 +2516,7 @@ nfsrv_readdir(nfsd, slp, procp, mrq)
 		nfsm_srvpostop_attr(getret, &at);
 		return (0);
 	}
-	VOP_UNLOCK(vp);
+	VOP_UNLOCK(vp, 0, procp);
 	MALLOC(rbuf, caddr_t, siz, M_TEMP, M_WAITOK);
 #ifdef __NetBSD__
 	ncookies = siz / (5 * NFSX_UNSIGNED); /*7 for V3, but it's an est. so*/
@@ -2538,16 +2534,12 @@ again:
 	io.uio_rw = UIO_READ;
 	io.uio_procp = (struct proc *)0;
 	eofflag = 0;
-	VOP_LOCK(vp);
-#ifndef __NetBSD__
+	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, procp);
 	if (cookies) {
 		free((caddr_t)cookies, M_TEMP);
 		cookies = NULL;
 	}
 	error = VOP_READDIR(vp, &io, cred, &eofflag, &ncookies, &cookies);
-#else
-	error = VOP_READDIR(vp, &io, cred, &eofflag, cookies, ncookies);
-#endif
 	off = (off_t)io.uio_offset;
 	if (!cookies && !error)
 		error = NFSERR_PERM;
@@ -2556,7 +2548,7 @@ again:
 		if (!error)
 			error = getret;
 	}
-	VOP_UNLOCK(vp);
+	VOP_UNLOCK(vp, 0, procp);
 	if (error) {
 		vrele(vp);
 		free((caddr_t)rbuf, M_TEMP);
@@ -2751,7 +2743,7 @@ nfsrv_readdirplus(nfsd, slp, procp, mrq)
 	int len, nlen, rem, xfer, tsiz, i, error = 0, getret = 1;
 	int siz, cnt, fullsiz, eofflag, rdonly, cache, dirlen, ncookies;
 	u_quad_t frev, off, toff, verf;
-	u_int *cookies = NULL, *cookiep;
+	u_long *cookies = NULL, *cookiep;
 
 	fhp = &nfh.fh_generic;
 	nfsm_srvmtofh(fhp);
@@ -2787,7 +2779,7 @@ nfsrv_readdirplus(nfsd, slp, procp, mrq)
 		nfsm_srvpostop_attr(getret, &at);
 		return (0);
 	}
-	VOP_UNLOCK(vp);
+	VOP_UNLOCK(vp, 0, procp);
 	MALLOC(rbuf, caddr_t, siz, M_TEMP, M_WAITOK);
 #ifdef __NetBSD__
 	ncookies = siz / (7 * NFSX_UNSIGNED);
@@ -2805,19 +2797,15 @@ again:
 	io.uio_rw = UIO_READ;
 	io.uio_procp = (struct proc *)0;
 	eofflag = 0;
-	VOP_LOCK(vp);
-#ifndef __NetBSD__
+	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, procp);
 	if (cookies) {
 		free((caddr_t)cookies, M_TEMP);
 		cookies = NULL;
 	}
 	error = VOP_READDIR(vp, &io, cred, &eofflag, &ncookies, &cookies);
-#else
-	error = VOP_READDIR(vp, &io, cred, &eofflag, cookies, ncookies);
-#endif
 	off = (u_quad_t)io.uio_offset;
 	getret = VOP_GETATTR(vp, &at, cred, procp);
-	VOP_UNLOCK(vp);
+	VOP_UNLOCK(vp, 0, procp);
 	if (!cookies && !error)
 		error = NFSERR_PERM;
 	if (!error)
diff --git a/sys/nfs/nfs_socket.c b/sys/nfs/nfs_socket.c
index addd59f..ed16333 100644
--- a/sys/nfs/nfs_socket.c
+++ b/sys/nfs/nfs_socket.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1989, 1991, 1993
+ * Copyright (c) 1989, 1991, 1993, 1995
  *	The Regents of the University of California.  All rights reserved.
  *
  * This code is derived from software contributed to Berkeley by
@@ -33,7 +33,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)nfs_socket.c	8.3 (Berkeley) 1/12/94
+ *	@(#)nfs_socket.c	8.5 (Berkeley) 3/30/95
  * $FreeBSD$
  */
 
@@ -1925,6 +1925,9 @@ nfs_getreq(nd, nfsd, has_header)
 	struct mbuf *mrep, *md;
 	register struct nfsuid *nuidp;
 	struct timeval tvin, tvout;
+#if 0				/* until encrypted keys are implemented */
+	NFSKERBKEYSCHED_T keys;	/* stores key schedule */
+#endif
 
 	mrep = nd->nd_mrep;
 	md = nd->nd_md;
diff --git a/sys/nfs/nfs_srvcache.c b/sys/nfs/nfs_srvcache.c
index 835ec06..efff221 100644
--- a/sys/nfs/nfs_srvcache.c
+++ b/sys/nfs/nfs_srvcache.c
@@ -33,7 +33,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)nfs_srvcache.c	8.1 (Berkeley) 6/10/93
+ *	@(#)nfs_srvcache.c	8.3 (Berkeley) 3/30/95
  * $FreeBSD$
  */
 
diff --git a/sys/nfs/nfs_subs.c b/sys/nfs/nfs_subs.c
index 1feadd6..5f83bf5 100644
--- a/sys/nfs/nfs_subs.c
+++ b/sys/nfs/nfs_subs.c
@@ -100,6 +100,7 @@ enum vtype nv3tov_type[8]= {
 	VNON, VREG, VDIR, VBLK, VCHR, VLNK, VSOCK, VFIFO
 };
 
+int nfs_mount_type;
 int nfs_ticks;
 
 struct nfs_reqq nfs_reqq;
@@ -1093,7 +1094,8 @@ nfsm_strtmbuf(mb, bpos, cp, siz)
  * Called once to initialize data structures...
  */
 int
-nfs_init()
+nfs_init(vfsp)
+	struct vfsconf *vfsp;
 {
 	register int i;
 
@@ -1116,6 +1118,7 @@ nfs_init()
 		printf("struct nfsuid bloated (> %dbytes)\n",NFS_UIDALLOC);
 		printf("Try unionizing the nu_nickname and nu_flag fields\n");
 	}
+	nfs_mount_type = vfsp->vfc_typenum;
 	nfsrtt.pos = 0;
 	rpc_vers = txdr_unsigned(RPC_VER2);
 	rpc_call = txdr_unsigned(RPC_CALL);
@@ -1170,10 +1173,10 @@ nfs_init()
 	 * of the system can call us, if we are loadable.
 	 */
 #ifndef NFS_NOSERVER
-	lease_check = nfs_lease_check;
+	lease_check_hook = nqnfs_vop_lease_check;
 #endif
 	lease_updatetime = nfs_lease_updatetime;
-	vfsconf[MOUNT_NFS]->vfc_refcount++; /* make us non-unloadable */
+	vfsp->vfc_refcount++; /* make us non-unloadable */
 #ifdef VFS_LKM
 	sysent[SYS_nfssvc].sy_narg = 2;
 	sysent[SYS_nfssvc].sy_call = nfssvc;
@@ -1212,7 +1215,6 @@ nfs_loadattrcache(vpp, mdp, dposp, vaper)
 	register struct vattr *vap;
 	register struct nfs_fattr *fp;
 	register struct nfsnode *np;
-	register struct nfsnodehashhead *nhpp;
 	register long t1;
 	caddr_t cp2;
 	int error = 0, rdev;
@@ -1222,6 +1224,7 @@ nfs_loadattrcache(vpp, mdp, dposp, vaper)
 	struct timespec mtime;
 	struct vnode *nvp;
 	int v3 = NFS_ISV3(vp);
+	struct proc *p = curproc;
 
 	md = *mdp;
 	t1 = (mtod(md, caddr_t) + md->m_len) - *dposp;
@@ -1284,7 +1287,7 @@ nfs_loadattrcache(vpp, mdp, dposp, vaper)
 		 * then release it here.
 		 */
 		if (vtyp != VREG && VOP_ISLOCKED(vp))
-			VOP_UNLOCK(vp);
+			VOP_UNLOCK(vp, 0, p);
 		vp->v_type = vtyp;
 		if (vp->v_type == VFIFO) {
 			vp->v_op = fifo_nfsv2nodeop_p;
@@ -1295,8 +1298,11 @@ nfs_loadattrcache(vpp, mdp, dposp, vaper)
 			if (nvp) {
 				/*
 				 * Discard unneeded vnode, but save its nfsnode.
+				 * Since the nfsnode does not have a lock, its
+				 * vnode lock has to be carried over.
 				 */
-				LIST_REMOVE(np, n_hash);
+				nvp->v_vnlock = vp->v_vnlock;
+				vp->v_vnlock = NULL;
 				nvp->v_data = vp->v_data;
 				vp->v_data = NULL;
 				vp->v_op = spec_vnodeop_p;
@@ -1306,8 +1312,6 @@ nfs_loadattrcache(vpp, mdp, dposp, vaper)
 				 * Reinitialize aliased node.
 				 */
 				np->n_vnode = nvp;
-				nhpp = NFSNOHASH(nfs_hash(np->n_fhp, np->n_fhsize));
-				LIST_INSERT_HEAD(nhpp, np, n_hash);
 				*vpp = vp = nvp;
 			}
 		}
@@ -1714,13 +1718,14 @@ nfsrv_fhtovp(fhp, lockflag, vpp, cred, slp, nam, rdonlyp, kerbflag)
 	int *rdonlyp;
 	int kerbflag;
 {
+	struct proc *p = curproc; /* XXX */
 	register struct mount *mp;
 	register int i;
 	struct ucred *credanon;
 	int error, exflags;
 
 	*vpp = (struct vnode *)0;
-	mp = getvfs(&fhp->fh_fsid);
+	mp = vfs_getvfs(&fhp->fh_fsid);
 	if (!mp)
 		return (ESTALE);
 	error = VFS_FHTOVP(mp, &fhp->fh_fid, nam, vpp, &exflags, &credanon);
@@ -1751,7 +1756,7 @@ nfsrv_fhtovp(fhp, lockflag, vpp, cred, slp, nam, rdonlyp, kerbflag)
 	nfsrv_object_create(*vpp);
 
 	if (!lockflag)
-		VOP_UNLOCK(*vpp);
+		VOP_UNLOCK(*vpp, 0, p);
 	return (0);
 }
 
@@ -1947,3 +1952,4 @@ nfsrv_object_create(struct vnode *vp) {
 	return vfs_object_create(vp, curproc, curproc?curproc->p_ucred:NULL, 1);
 }
 #endif /* NFS_NOSERVER */
+
diff --git a/sys/nfs/nfs_syscalls.c b/sys/nfs/nfs_syscalls.c
index 734fe79..24d4bd6 100644
--- a/sys/nfs/nfs_syscalls.c
+++ b/sys/nfs/nfs_syscalls.c
@@ -33,7 +33,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)nfs_syscalls.c	8.3 (Berkeley) 1/4/94
+ *	@(#)nfs_syscalls.c	8.5 (Berkeley) 3/30/95
  * $FreeBSD$
  */
 
@@ -97,7 +97,6 @@ static int	nfssvc_iod __P((struct proc *));
 
 static int nfs_asyncdaemon[NFS_MAXASYNCDAEMON];
 
-
 #ifndef NFS_NOSERVER
 int nfsd_waiting = 0;
 static struct nfsdrt nfsdrt;
@@ -1051,6 +1050,7 @@ nfsmout:
 }
 
 #ifndef NFS_NOSERVER
+
 /*
  * Derefence a server socket structure. If it has no more references and
  * is no longer valid, you can throw it away.
diff --git a/sys/nfs/nfs_vfsops.c b/sys/nfs/nfs_vfsops.c
index 937c2d5..06457f1 100644
--- a/sys/nfs/nfs_vfsops.c
+++ b/sys/nfs/nfs_vfsops.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1989, 1993
+ * Copyright (c) 1989, 1993, 1995
  *	The Regents of the University of California.  All rights reserved.
  *
  * This code is derived from software contributed to Berkeley by
@@ -33,7 +33,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)nfs_vfsops.c	8.3 (Berkeley) 1/4/94
+ *	@(#)nfs_vfsops.c	8.12 (Berkeley) 5/20/95
  * $FreeBSD$
  */
 
@@ -121,7 +121,7 @@ static struct vfsops nfs_vfsops = {
 	nfs_vget,
 	nfs_fhtovp,
 	nfs_vptofh,
-	nfs_init,
+	nfs_init
 };
 VFS_SET(nfs_vfsops, nfs, MOUNT_NFS, VFCF_NETWORK);
 
@@ -152,8 +152,10 @@ SYSCTL_OPAQUE(_vfs_nfs, OID_AUTO, diskless_swapaddr, CTLFLAG_RD,
 
 
 void nfsargs_ntoh __P((struct nfs_args *));
-static struct mount *nfs_mountdiskless __P((char *, char *, int,
-    struct sockaddr_in *, struct nfs_args *, register struct vnode **));
+static int nfs_mountdiskless __P((char *, char *, int,
+				  struct sockaddr_in *, struct nfs_args *,
+				  struct proc *, struct vnode **,
+				  struct mount **));
 
 static int nfs_iosize(nmp)
 	struct nfsmount* nmp;
@@ -329,8 +331,8 @@ nfs_fsinfo(nmp, vp, cred, p)
 int
 nfs_mountroot()
 {
-	register struct mount *mp;
-	register struct nfs_diskless *nd = &nfs_diskless;
+	struct mount *mp, *swap_mp;
+	struct nfs_diskless *nd = &nfs_diskless;
 	struct socket *so;
 	struct vnode *vp;
 	struct proc *p = curproc;		/* XXX */
@@ -406,6 +408,7 @@ nfs_mountroot()
 			panic("nfs_mountroot: RTM_ADD: %d", error);
 	}
 
+	swap_mp = NULL;
 	if (nd->swap_nblks) {
 
 		/* Convert to DEV_BSIZE instead of Kilobyte */
@@ -426,8 +429,10 @@ nfs_mountroot()
 			(l >> 24) & 0xff, (l >> 16) & 0xff,
 			(l >>  8) & 0xff, (l >>  0) & 0xff,nd->swap_hostnam);
 		printf("NFS SWAP: %s\n",buf);
-		(void) nfs_mountdiskless(buf, "/swap", 0,
-		    &nd->swap_saddr, &nd->swap_args, &vp);
+		if (error = nfs_mountdiskless(buf, "/swap", 0,
+		    &nd->swap_saddr, &nd->swap_args, p, &vp, &swap_mp))
+			return (error);
+		vfs_unbusy(swap_mp, p);
 
 		VTONFS(vp)->n_size = VTONFS(vp)->n_vattr.va_size = 
 				nd->swap_nblks * DEV_BSIZE ;
@@ -455,16 +460,22 @@ nfs_mountroot()
 		(l >> 24) & 0xff, (l >> 16) & 0xff,
 		(l >>  8) & 0xff, (l >>  0) & 0xff,nd->root_hostnam);
 	printf("NFS ROOT: %s\n",buf);
-	mp = nfs_mountdiskless(buf, "/", MNT_RDONLY,
-	    &nd->root_saddr, &nd->root_args, &vp);
+	if (error = nfs_mountdiskless(buf, "/", MNT_RDONLY,
+	    &nd->root_saddr, &nd->root_args, p, &vp, &mp)) {
+		if (swap_mp) {
+			mp->mnt_vfc->vfc_refcount--;
+			free(swap_mp, M_MOUNT);
+		}
+		return (error);
+	}
 
-	if (vfs_lock(mp))
-		panic("nfs_mountroot: vfs_lock");
+	simple_lock(&mountlist_slock);
 	CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list);
+	simple_unlock(&mountlist_slock);
 	mp->mnt_flag |= MNT_ROOTFS;
 	mp->mnt_vnodecovered = NULLVP;
-	vfs_unlock(mp);
 	rootvp = vp;
+	vfs_unbusy(mp, p);
 
 	/*
 	 * This is not really an nfs issue, but it is much easier to
@@ -483,39 +494,65 @@ nfs_mountroot()
 /*
  * Internal version of mount system call for diskless setup.
  */
-static struct mount *
-nfs_mountdiskless(path, which, mountflag, sin, args, vpp)
+static int
+nfs_mountdiskless(path, which, mountflag, sin, args, p, vpp, mpp)
 	char *path;
 	char *which;
 	int mountflag;
 	struct sockaddr_in *sin;
 	struct nfs_args *args;
-	register struct vnode **vpp;
+	struct proc *p;
+	struct vnode **vpp;
+	struct mount **mpp;
 {
-	register struct mount *mp;
-	register struct mbuf *m;
-	register int error;
-
-	mp = (struct mount *)malloc((u_long)sizeof(struct mount),
-	    M_MOUNT, M_NOWAIT);
-	if (mp == NULL)
-		panic("nfs_mountroot: %s mount malloc", which);
-	bzero((char *)mp, (u_long)sizeof(struct mount));
-	mp->mnt_op = &nfs_vfsops;
-	mp->mnt_flag = mountflag;
+	struct mount *mp;
+	struct mbuf *m;
+	int error;
 
-	MGET(m, MT_SONAME, M_DONTWAIT);
-	if (m == NULL)
-		panic("nfs_mountroot: %s mount mbuf", which);
+	if (error = vfs_rootmountalloc("nfs", path, &mp)) {
+		printf("nfs_mountroot: NFS not configured");
+		return (error);
+	}
+	mp->mnt_flag = mountflag;
+	MGET(m, MT_SONAME, M_WAITOK);
 	bcopy((caddr_t)sin, mtod(m, caddr_t), sin->sin_len);
 	m->m_len = sin->sin_len;
-	error = mountnfs(args, mp, m, which, path, vpp);
-	if (error)
-		panic("nfs_mountroot: mount %s on %s: %d", path, which, error);
-
-	return (mp);
+	if (error = mountnfs(args, mp, m, which, path, vpp)) {
+		printf("nfs_mountroot: mount %s on %s: %d", path, which, error);
+		mp->mnt_vfc->vfc_refcount--;
+		vfs_unbusy(mp, p);
+		free(mp, M_MOUNT);
+		return (error);
+	}
+	(void) copystr(which, mp->mnt_stat.f_mntonname, MNAMELEN - 1, 0);
+	*mpp = mp;
+	return (0);
 }
 
+#ifdef COMPAT_PRELITE2
+/*
+ * Old arguments to mount NFS
+ */
+struct onfs_args {
+	struct sockaddr	*addr;		/* file server address */
+	int		addrlen;	/* length of address */
+	int		sotype;		/* Socket type */
+	int		proto;		/* and Protocol */
+	u_char		*fh;		/* File handle to be mounted */
+	int		fhsize;		/* Size, in bytes, of fh */
+	int		flags;		/* flags */
+	int		wsize;		/* write size in bytes */
+	int		rsize;		/* read size in bytes */
+	int		readdirsize;	/* readdir size in bytes */
+	int		timeo;		/* initial timeout in .1 secs */
+	int		retrans;	/* times to retry send */
+	int		maxgrouplist;	/* Max. size of group list */
+	int		readahead;	/* # of blocks to readahead */
+	int		leaseterm;	/* Term (sec) of lease */
+	int		deadthresh;	/* Retrans threshold */
+	char		*hostname;	/* server's name */
+};
+#endif
 
 /*
  * VFS Operations.
@@ -546,6 +583,39 @@ nfs_mount(mp, path, data, ndp, p)
 	error = copyin(data, (caddr_t)&args, sizeof (struct nfs_args));
 	if (error)
 		return (error);
+	if (args.version != NFS_ARGSVERSION) {
+#ifdef COMPAT_PRELITE2
+		/*
+		 * If the argument version is unknown, then assume the
+		 * caller is a pre-lite2 4.4BSD client and convert its
+		 * arguments.
+		 */
+		struct onfs_args oargs;
+		error = copyin(data, (caddr_t)&oargs, sizeof (struct onfs_args));
+		if (error)
+			return (error);
+		args.version = NFS_ARGSVERSION;
+		args.addr = oargs.addr;
+		args.addrlen = oargs.addrlen;
+		args.sotype = oargs.sotype;
+		args.proto = oargs.proto;
+		args.fh = oargs.fh;
+		args.fhsize = oargs.fhsize;
+		args.flags = oargs.flags;
+		args.wsize = oargs.wsize;
+		args.rsize = oargs.rsize;
+		args.readdirsize = oargs.readdirsize;
+		args.timeo = oargs.timeo;
+		args.retrans = oargs.retrans;
+		args.maxgrouplist = oargs.maxgrouplist;
+		args.readahead = oargs.readahead;
+		args.leaseterm = oargs.leaseterm;
+		args.deadthresh = oargs.deadthresh;
+		args.hostname = oargs.hostname;
+#else  /* COMPAT_PRELITE2 */
+		return (EPROGMISMATCH);
+#endif /* COMPAT_PRELITE2 */
+	}
 	error = copyin((caddr_t)args.fh, (caddr_t)nfh, args.fhsize);
 	if (error)
 		return (error);
@@ -595,7 +665,7 @@ mountnfs(argp, mp, nam, pth, hst, vpp)
 		TAILQ_INIT(&nmp->nm_bufq);
 		mp->mnt_data = (qaddr_t)nmp;
 	}
-	getnewfsid(mp, MOUNT_NFS);
+	vfs_getnewfsid(mp);
 	nmp->nm_mountp = mp;
 	nmp->nm_flag = argp->flags;
 	if (nmp->nm_flag & NFSMNT_NQNFS)
@@ -619,15 +689,6 @@ mountnfs(argp, mp, nam, pth, hst, vpp)
 	nmp->nm_inprog = NULLVP;
 	nmp->nm_fhsize = argp->fhsize;
 	bcopy((caddr_t)argp->fh, (caddr_t)nmp->nm_fh, argp->fhsize);
-#ifdef __NetBSD__
-#ifdef COMPAT_09
-	mp->mnt_stat.f_type = 2;
-#else
-	mp->mnt_stat.f_type = 0;
-#endif
-#else
-	mp->mnt_stat.f_type = MOUNT_NFS;
-#endif
 	bcopy(hst, mp->mnt_stat.f_mntfromname, MNAMELEN);
 	bcopy(pth, mp->mnt_stat.f_mntonname, MNAMELEN);
 	nmp->nm_nam = nam;
@@ -741,7 +802,7 @@ mountnfs(argp, mp, nam, pth, hst, vpp)
 	/*
 	 * Lose the lock but keep the ref.
 	 */
-	VOP_UNLOCK(*vpp);
+	VOP_UNLOCK(*vpp, 0, curproc);
 
 	return (0);
 bad:
@@ -765,11 +826,8 @@ nfs_unmount(mp, mntflags, p)
 	struct vnode *vp;
 	int error, flags = 0;
 
-	if (mntflags & MNT_FORCE) {
-		if (!doforce)
-			return (EINVAL);
+	if (mntflags & MNT_FORCE)
 		flags |= FORCECLOSE;
-	}
 	nmp = VFSTONFS(mp);
 	/*
 	 * Goes something like this..
@@ -846,7 +904,7 @@ nfs_root(mp, vpp)
 	if (error)
 		return (error);
 	vp = NFSTOV(np);
-	VOP_UNLOCK(vp);
+	VOP_UNLOCK(vp, 0, curproc);
 	if (vp->v_type == VNON)
 	    vp->v_type = VDIR;
 	vp->v_flag = VROOT;
@@ -885,7 +943,7 @@ loop:
 			goto loop;
 		if (VOP_ISLOCKED(vp) || vp->v_dirtyblkhd.lh_first == NULL)
 			continue;
-		if (vget(vp, 1))
+		if (vget(vp, LK_EXCLUSIVE, p))
 			goto loop;
 		error = VOP_FSYNC(vp, cred, waitfor, p);
 		if (error)
@@ -969,4 +1027,3 @@ nfs_quotactl(mp, cmd, uid, arg, p)
 
 	return (EOPNOTSUPP);
 }
-
diff --git a/sys/nfs/nfs_vnops.c b/sys/nfs/nfs_vnops.c
index b8ff396..905bb22 100644
--- a/sys/nfs/nfs_vnops.c
+++ b/sys/nfs/nfs_vnops.c
@@ -33,10 +33,11 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)nfs_vnops.c	8.5 (Berkeley) 2/13/94
+ *	@(#)nfs_vnops.c	8.16 (Berkeley) 5/27/95
  * $FreeBSD$
  */
 
+
 /*
  * vnode op calls for Sun NFS version 2 and 3
  */
@@ -151,14 +152,10 @@ static struct vnodeopv_entry_desc nfsv2_vnodeop_entries[] = {
 	{ &vop_setattr_desc, (vop_t *)nfs_setattr },	/* setattr */
 	{ &vop_read_desc, (vop_t *)nfs_read },		/* read */
 	{ &vop_write_desc, (vop_t *)nfs_write },	/* write */
-#ifdef HAS_VOPLEASE
 	{ &vop_lease_desc, (vop_t *)nfs_lease_check },	/* lease */
-#endif
 	{ &vop_ioctl_desc, (vop_t *)nfs_ioctl },	/* ioctl */
 	{ &vop_select_desc, (vop_t *)nfs_select },	/* select */
-#ifdef HAS_VOPREVOKE
 	{ &vop_revoke_desc, (vop_t *)nfs_revoke },	/* revoke */
-#endif
 	{ &vop_mmap_desc, (vop_t *)nfs_mmap },		/* mmap */
 	{ &vop_fsync_desc, (vop_t *)nfs_fsync },	/* fsync */
 	{ &vop_seek_desc, (vop_t *)nfs_seek },		/* seek */
@@ -212,14 +209,10 @@ static struct vnodeopv_entry_desc spec_nfsv2nodeop_entries[] = {
 	{ &vop_setattr_desc, (vop_t *)nfs_setattr },	/* setattr */
 	{ &vop_read_desc, (vop_t *)nfsspec_read },	/* read */
 	{ &vop_write_desc, (vop_t *)nfsspec_write },	/* write */
-#ifdef HAS_VOPLEASE
 	{ &vop_lease_desc, (vop_t *)spec_lease_check },	/* lease */
-#endif
 	{ &vop_ioctl_desc, (vop_t *)spec_ioctl },	/* ioctl */
 	{ &vop_select_desc, (vop_t *)spec_select },	/* select */
-#ifdef HAS_VOPREVOKE
 	{ &vop_revoke_desc, (vop_t *)spec_revoke },	/* revoke */
-#endif
 	{ &vop_mmap_desc, (vop_t *)spec_mmap },		/* mmap */
 	{ &vop_fsync_desc, (vop_t *)nfs_fsync },	/* fsync */
 	{ &vop_seek_desc, (vop_t *)spec_seek },		/* seek */
@@ -270,14 +263,10 @@ static struct vnodeopv_entry_desc fifo_nfsv2nodeop_entries[] = {
 	{ &vop_setattr_desc, (vop_t *)nfs_setattr },	/* setattr */
 	{ &vop_read_desc, (vop_t *)nfsfifo_read },	/* read */
 	{ &vop_write_desc, (vop_t *)nfsfifo_write },	/* write */
-#ifdef HAS_VOPLEASE
 	{ &vop_lease_desc, (vop_t *)fifo_lease_check },	/* lease */
-#endif
 	{ &vop_ioctl_desc, (vop_t *)fifo_ioctl },	/* ioctl */
 	{ &vop_select_desc, (vop_t *)fifo_select },	/* select */
-#ifdef HAS_VOPREVOKE
 	{ &vop_revoke_desc, (vop_t *)fifo_revoke },	/* revoke */
-#endif
 	{ &vop_mmap_desc, (vop_t *)fifo_mmap },		/* mmap */
 	{ &vop_fsync_desc, (vop_t *)nfs_fsync },	/* fsync */
 	{ &vop_seek_desc, (vop_t *)fifo_seek },		/* seek */
@@ -469,7 +458,7 @@ nfs_open(ap)
 			if ((error = nfs_vinvalbuf(vp, V_SAVE, ap->a_cred,
 				ap->a_p, 1)) == EINTR)
 				return (error);
-			(void) vnode_pager_uncache(vp);
+			(void) vnode_pager_uncache(vp, ap->a_p);
 			np->n_brev = np->n_lrev;
 		    }
 		}
@@ -588,7 +577,7 @@ nfs_getattr(ap)
 	int error = 0;
 	struct mbuf *mreq, *mrep, *md, *mb, *mb2;
 	int v3 = NFS_ISV3(vp);
-
+	
 	/*
 	 * Update local times for special files.
 	 */
@@ -634,7 +623,7 @@ nfs_setattr(ap)
 	/*
 	 * Disallow write attempts if the filesystem is mounted read-only.
 	 */
-	if ((vap->va_flags != VNOVAL || vap->va_uid != (uid_t)VNOVAL ||
+  	if ((vap->va_flags != VNOVAL || vap->va_uid != (uid_t)VNOVAL ||
 	    vap->va_gid != (gid_t)VNOVAL || vap->va_atime.tv_sec != VNOVAL ||
 	    vap->va_mtime.tv_sec != VNOVAL || vap->va_mode != (mode_t)VNOVAL) &&
 	    (vp->v_mount->mnt_flag & MNT_RDONLY))
@@ -645,6 +634,8 @@ nfs_setattr(ap)
  			return (EISDIR);
  		case VCHR:
  		case VBLK:
+ 		case VSOCK:
+ 		case VFIFO:
 			if (vap->va_mtime.tv_sec == VNOVAL &&
 			    vap->va_atime.tv_sec == VNOVAL &&
 			    vap->va_mode == (u_short)VNOVAL &&
@@ -660,20 +651,22 @@ nfs_setattr(ap)
 			 */
 			if (vp->v_mount->mnt_flag & MNT_RDONLY)
 				return (EROFS);
- 			if (vap->va_size == 0)
+ 			if (np->n_flag & NMODIFIED) {
+ 			    if (vap->va_size == 0)
  				error = nfs_vinvalbuf(vp, 0,
  					ap->a_cred, ap->a_p, 1);
- 			else
+ 			    else
  				error = nfs_vinvalbuf(vp, V_SAVE,
  					ap->a_cred, ap->a_p, 1);
- 			if (error)
+ 			    if (error)
  				return (error);
+ 			}
  			tsize = np->n_size;
  			np->n_size = np->n_vattr.va_size = vap->va_size;
  			vnode_pager_setsize(vp, (u_long)np->n_size);
   		};
   	} else if ((vap->va_mtime.tv_sec != VNOVAL ||
-		vap->va_atime.tv_sec != VNOVAL) &&
+		vap->va_atime.tv_sec != VNOVAL) && (np->n_flag & NMODIFIED) &&
 		vp->v_type == VREG &&
   		(error = nfs_vinvalbuf(vp, V_SAVE, ap->a_cred,
 		 ap->a_p, 1)) == EINTR)
@@ -826,6 +819,7 @@ nfs_lookup(ap)
 	struct nfsnode *np;
 	int lockparent, wantparent, error = 0, attrflag, fhsize;
 	int v3 = NFS_ISV3(dvp);
+	struct proc *p = cnp->cn_proc;
 
 	if ((flags & ISLASTCN) && (dvp->v_mount->mnt_flag & MNT_RDONLY) &&
 	    (cnp->cn_nameiop == DELETE || cnp->cn_nameiop == RENAME))
@@ -851,18 +845,18 @@ nfs_lookup(ap)
 			VREF(newvp);
 			error = 0;
 		} else if (flags & ISDOTDOT) {
-			VOP_UNLOCK(dvp);
-			error = vget(newvp, 1);
+			VOP_UNLOCK(dvp, 0, p);
+			error = vget(newvp, LK_EXCLUSIVE, p);
 			if (!error && lockparent && (flags & ISLASTCN))
-				error = VOP_LOCK(dvp);
+				error = vn_lock(dvp, LK_EXCLUSIVE, p);
 		} else {
-			error = vget(newvp, 1);
+			error = vget(newvp, LK_EXCLUSIVE, p);
 			if (!lockparent || error || !(flags & ISLASTCN))
-				VOP_UNLOCK(dvp);
+				VOP_UNLOCK(dvp, 0, p);
 		}
 		if (!error) {
 			if (vpid == newvp->v_id) {
-			   if (!VOP_GETATTR(newvp, &vattr, cnp->cn_cred, cnp->cn_proc)
+			   if (!VOP_GETATTR(newvp, &vattr, cnp->cn_cred, p)
 			    && vattr.va_ctime.tv_sec == VTONFS(newvp)->n_ctime) {
 				nfsstats.lookupcache_hits++;
 				if (cnp->cn_nameiop != LOOKUP &&
@@ -874,9 +868,9 @@ nfs_lookup(ap)
 			}
 			vput(newvp);
 			if (lockparent && dvp != newvp && (flags & ISLASTCN))
-				VOP_UNLOCK(dvp);
+				VOP_UNLOCK(dvp, 0, p);
 		}
-		error = VOP_LOCK(dvp);
+		error = vn_lock(dvp, LK_EXCLUSIVE, p);
 		if (error)
 			return (error);
 		*vpp = NULLVP;
@@ -920,20 +914,20 @@ nfs_lookup(ap)
 		m_freem(mrep);
 		cnp->cn_flags |= SAVENAME;
 		if (!lockparent)
-			VOP_UNLOCK(dvp);
+			VOP_UNLOCK(dvp, 0, p);
 		return (0);
 	}
 
 	if (flags & ISDOTDOT) {
-		VOP_UNLOCK(dvp);
+		VOP_UNLOCK(dvp, 0, p);
 		error = nfs_nget(dvp->v_mount, fhp, fhsize, &np);
 		if (error) {
-			VOP_LOCK(dvp);
+			vn_lock(dvp, LK_EXCLUSIVE + LK_RETRY, p);
 			return (error);
 		}
 		newvp = NFSTOV(np);
 		if (lockparent && (flags & ISLASTCN) &&
-		    (error = VOP_LOCK(dvp))) {
+		    (error = vn_lock(dvp, LK_EXCLUSIVE, p))) {
 		    	vput(newvp);
 			return (error);
 		}
@@ -946,7 +940,7 @@ nfs_lookup(ap)
 			return (error);
 		}
 		if (!lockparent || !(flags & ISLASTCN))
-			VOP_UNLOCK(dvp);
+			VOP_UNLOCK(dvp, 0, p);
 		newvp = NFSTOV(np);
 	}
 	if (v3) {
@@ -969,7 +963,7 @@ nfs_lookup(ap)
 		if ((cnp->cn_nameiop == CREATE || cnp->cn_nameiop == RENAME) &&
 		    (flags & ISLASTCN) && error == ENOENT) {
 			if (!lockparent)
-				VOP_UNLOCK(dvp);
+				VOP_UNLOCK(dvp, 0, p);
 			if (dvp->v_mount->mnt_flag & MNT_RDONLY)
 				error = EROFS;
 			else
@@ -2110,7 +2104,7 @@ nfs_readdirrpc(vp, uiop, cred)
 		}
 		nfsm_dissect(tl, u_long *, NFSX_UNSIGNED);
 		more_dirs = fxdr_unsigned(int, *tl);
-
+	
 		/* loop thru the dir entries, doctoring them to 4bsd form */
 		while (more_dirs && bigenough) {
 			if (v3) {
@@ -2923,6 +2917,9 @@ loop:
 			}
 		}
 		if (vp->v_dirtyblkhd.lh_first && commit) {
+#ifndef DIAGNOSTIC
+			vprint("nfs_fsync: dirty", vp);
+#endif
 			goto loop;
 		}
 	}
@@ -3131,7 +3128,7 @@ nfs_writebp(bp, force)
 	 * an actual write will have to be scheduled via. VOP_STRATEGY().
 	 * If B_WRITEINPROG is already set, then push it with a write anyhow.
 	 */
-	if (oldflags & (B_NEEDCOMMIT | B_WRITEINPROG) == B_NEEDCOMMIT) {
+	if ((oldflags & (B_NEEDCOMMIT | B_WRITEINPROG)) == B_NEEDCOMMIT) {
 		off = ((u_quad_t)bp->b_blkno) * DEV_BSIZE + bp->b_dirtyoff;
 		bp->b_flags |= B_WRITEINPROG;
 		retv = nfs_commit(bp->b_vp, off, bp->b_dirtyend-bp->b_dirtyoff,
@@ -3205,7 +3202,7 @@ nfsspec_access(ap)
 	if (cred->cr_uid == 0)
 		return (0);
 	vap = &vattr;
-	error = VOP_GETATTR(ap->a_vp, vap, cred, ap->a_p);
+	error = VOP_GETATTR(vp, vap, cred, ap->a_p);
 	if (error)
 		return (error);
 	/*
diff --git a/sys/nfs/nfsdiskless.h b/sys/nfs/nfsdiskless.h
index 117548b..4777818 100644
--- a/sys/nfs/nfsdiskless.h
+++ b/sys/nfs/nfsdiskless.h
@@ -33,10 +33,11 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)nfsdiskless.h	8.1 (Berkeley) 6/10/93
+ *	@(#)nfsdiskless.h	8.2 (Berkeley) 3/30/95
  * $FreeBSD$
  */
 
+
 #ifndef _NFS_NFSDISKLESS_H_
 #define _NFS_NFSDISKLESS_H_
 
@@ -46,8 +47,8 @@
  * vnodes plus do a partial ifconfig(8) and route(8) so that the critical net
  * interface can communicate with the server.
  * The primary bootstrap is expected to fill in the appropriate fields before
- * starting the kernel. Whether or not the swap area is nfs mounted is determined
- * by the value in swdevt[0]. (equal to NODEV --> swap over nfs)
+ * starting the kernel. Whether or not the swap area is nfs mounted is
+ * determined by the value in swdevt[0]. (equal to NODEV --> swap over nfs)
  * Currently only works for AF_INET protocols.
  * NB: All fields are stored in net byte order to avoid hassles with
  * client/server byte ordering differences.
diff --git a/sys/nfs/nfsm_subs.h b/sys/nfs/nfsm_subs.h
index ac1a159..cd37c59 100644
--- a/sys/nfs/nfsm_subs.h
+++ b/sys/nfs/nfsm_subs.h
@@ -33,10 +33,11 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)nfsm_subs.h	8.1 (Berkeley) 6/16/93
+ *	@(#)nfsm_subs.h	8.2 (Berkeley) 3/30/95
  * $FreeBSD$
  */
 
+
 #ifndef _NFS_NFSM_SUBS_H_
 #define _NFS_NFSM_SUBS_H_
 
diff --git a/sys/nfs/nfsmount.h b/sys/nfs/nfsmount.h
index ea48bca..1545ada 100644
--- a/sys/nfs/nfsmount.h
+++ b/sys/nfs/nfsmount.h
@@ -33,10 +33,11 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)nfsmount.h	8.1 (Berkeley) 6/10/93
+ *	@(#)nfsmount.h	8.3 (Berkeley) 3/30/95
  * $FreeBSD$
  */
 
+
 #ifndef _NFS_NFSMOUNT_H_
 #define _NFS_NFSMOUNT_H_
 
diff --git a/sys/nfs/nfsnode.h b/sys/nfs/nfsnode.h
index 4408fe2..e52a3dd 100644
--- a/sys/nfs/nfsnode.h
+++ b/sys/nfs/nfsnode.h
@@ -33,10 +33,11 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)nfsnode.h	8.4 (Berkeley) 2/13/94
+ *	@(#)nfsnode.h	8.9 (Berkeley) 5/14/95
  * $FreeBSD$
  */
 
+
 #ifndef _NFS_NFSNODE_H_
 #define _NFS_NFSNODE_H_
 
@@ -161,26 +162,16 @@ extern	vop_t	**spec_nfsv2nodeop_p;
  * Prototypes for NFS vnode operations
  */
 int	nfs_write __P((struct vop_write_args *));
-#ifdef HAS_VOPLEASE
 #define	nfs_lease_check ((int (*) __P((struct  vop_lease_args *)))nullop)
-#define nqnfs_vop_lease_check	lease_check
-#else
-#ifdef __FreeBSD__
-#define nqnfs_lease_check	nfs_lease_check
-#else
-#define nqnfs_lease_check	lease_check
-#endif
-#endif
-#ifdef HAS_VOPREVOKE
+int	nqnfs_vop_lease_check __P((struct vop_lease_args *));
 #define nfs_revoke vop_revoke
-#endif
 #define nfs_seek ((int (*) __P((struct  vop_seek_args *)))nullop)
 int	nfs_abortop __P((struct vop_abortop_args *));
 int	nfs_inactive __P((struct vop_inactive_args *));
 int	nfs_reclaim __P((struct vop_reclaim_args *));
-int	nfs_lock __P((struct vop_lock_args *));
-int	nfs_unlock __P((struct vop_unlock_args *));
-int	nfs_islocked __P((struct vop_islocked_args *));
+#define nfs_lock ((int (*) __P((struct vop_lock_args *)))vop_nolock)
+#define nfs_unlock ((int (*) __P((struct vop_unlock_args *)))vop_nounlock)
+#define nfs_islocked ((int (*) __P((struct vop_islocked_args *)))vop_noislocked)
 #define nfs_reallocblks \
 	((int (*) __P((struct  vop_reallocblks_args *)))eopnotsupp)
 
@@ -190,11 +181,7 @@ int	nfs_nget __P((struct mount *,nfsfh_t *,int,struct nfsnode **));
 nfsuint64 *nfs_getcookie __P((struct nfsnode *, off_t, int));
 void nfs_invaldir __P((struct vnode *));
 
-#ifdef __FreeBSD__
 #define nqnfs_lease_updatetime	nfs_lease_updatetime
-#else
-#define nqnfs_lease_updatetime	lease_updatetime
-#endif
 
 #endif /* KERNEL */
 
diff --git a/sys/nfs/nfsrtt.h b/sys/nfs/nfsrtt.h
index 291427f..a67b6c9 100644
--- a/sys/nfs/nfsrtt.h
+++ b/sys/nfs/nfsrtt.h
@@ -33,10 +33,11 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)nfsrtt.h	8.1 (Berkeley) 6/10/93
+ *	@(#)nfsrtt.h	8.2 (Berkeley) 3/30/95
  * $FreeBSD$
  */
 
+
 #ifndef _NFS_NFSRTT_H_
 #define _NFS_NFSRTT_H_
 
diff --git a/sys/nfs/nfsrvcache.h b/sys/nfs/nfsrvcache.h
index 38c9657..2cfa694 100644
--- a/sys/nfs/nfsrvcache.h
+++ b/sys/nfs/nfsrvcache.h
@@ -33,10 +33,11 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)nfsrvcache.h	8.1 (Berkeley) 6/10/93
+ *	@(#)nfsrvcache.h	8.3 (Berkeley) 3/30/95
  * $FreeBSD$
  */
 
+
 #ifndef _NFS_NFSRVCACHE_H_
 #define _NFS_NFSRVCACHE_H_
 
diff --git a/sys/nfs/nqnfs.h b/sys/nfs/nqnfs.h
index af55a23..91942b2 100644
--- a/sys/nfs/nqnfs.h
+++ b/sys/nfs/nqnfs.h
@@ -33,10 +33,11 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)nqnfs.h	8.1 (Berkeley) 6/10/93
+ *	@(#)nqnfs.h	8.3 (Berkeley) 3/30/95
  * $FreeBSD$
  */
 
+
 #ifndef _NFS_NQNFS_H_
 #define _NFS_NQNFS_H_
 
diff --git a/sys/nfs/rpcv2.h b/sys/nfs/rpcv2.h
index 418c80d..afe7972 100644
--- a/sys/nfs/rpcv2.h
+++ b/sys/nfs/rpcv2.h
@@ -33,10 +33,11 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)rpcv2.h	8.1 (Berkeley) 6/10/93
+ *	@(#)rpcv2.h	8.2 (Berkeley) 3/30/95
  * $FreeBSD$
  */
 
+
 #ifndef _NFS_RPCV2_H_
 #define _NFS_RPCV2_H_
 
diff --git a/sys/nfs/xdr_subs.h b/sys/nfs/xdr_subs.h
index 46016f2..cbaec88 100644
--- a/sys/nfs/xdr_subs.h
+++ b/sys/nfs/xdr_subs.h
@@ -33,10 +33,11 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)xdr_subs.h	8.1 (Berkeley) 6/10/93
+ *	@(#)xdr_subs.h	8.3 (Berkeley) 3/30/95
  * $FreeBSD$
  */
 
+
 #ifndef _NFS_XDR_SUBS_H_
 #define _NFS_XDR_SUBS_H_