Introduce NDFREE (and remove VOP_ABORTOP)

86 files changed, 459 insertions, 956 deletions

diff --git a/sys/coda/coda_vfsops.c b/sys/coda/coda_vfsops.c
index 615289c..04cf95b 100644
--- a/sys/coda/coda_vfsops.c
+++ b/sys/coda/coda_vfsops.c
@@ -56,6 +56,8 @@
 #include <sys/mount.h>
 #include <sys/select.h>
 
+#include <vm/vm_zone.h>
+
 #include <coda/coda.h>
 #include <coda/cnode.h>
 #include <coda/coda_vfsops.h>
@@ -134,7 +136,6 @@ coda_mount(vfsp, path, data, ndp, p)
     }
     
     /* Validate mount device.  Similar to getmdev(). */
-
     NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, data, p);
     error = namei(ndp);
     dvp = ndp->ni_vp;
@@ -146,10 +147,12 @@ coda_mount(vfsp, path, data, ndp, p)
     if (dvp->v_type != VCHR) {
 	MARK_INT_FAIL(CODA_MOUNT_STATS);
 	vrele(dvp);
+	NDFREE(ndp, NDF_ONLY_PNBUF);
 	return(ENXIO);
     }
     dev = dvp->v_rdev;
     vrele(dvp);
+    NDFREE(ndp, NDF_ONLY_PNBUF);
 
     /*
      * See if the device table matches our expectations.
diff --git a/sys/coda/coda_vnops.c b/sys/coda/coda_vnops.c
index 1ef09bc..761ebcc 100644
--- a/sys/coda/coda_vnops.c
+++ b/sys/coda/coda_vnops.c
@@ -131,7 +131,6 @@ struct vnodeopv_entry_desc coda_vnodeop_entries[] = {
     { &vop_symlink_desc, coda_symlink },	/* symlink */
     { &vop_readdir_desc, coda_readdir },	/* readdir */
     { &vop_readlink_desc, coda_readlink },	/* readlink */
-    { &vop_abortop_desc, coda_abortop },	/* abortop */
     { &vop_inactive_desc, coda_inactive },	/* inactive */
     { &vop_reclaim_desc, coda_reclaim },	/* reclaim */
     { &vop_lock_desc, coda_lock },		/* lock */
@@ -563,6 +562,7 @@ coda_ioctl(v)
      */
     if (tvp->v_op != coda_vnodeop_p) {
 	vrele(tvp);
+	NDFREE(&ndp, NDF_ONLY_PNBUF);
 	MARK_INT_FAIL(CODA_IOCTL_STATS);
 	CODADEBUG(CODA_IOCTL, 
 		 myprintf(("coda_ioctl error: %s not a coda object\n", 
@@ -571,7 +571,7 @@ coda_ioctl(v)
     }
 
     if (iap->vi.in_size > VC_MAXDATASIZE) {
-	vrele(tvp);
+	NDFREE(&ndp, 0);
 	return(EINVAL);
     }
     error = venus_ioctl(vtomi(tvp), &((VTOC(tvp))->c_fid), com, flag, data, cred, p);
@@ -582,6 +582,7 @@ coda_ioctl(v)
 	CODADEBUG(CODA_IOCTL, myprintf(("Ioctl returns %d \n", error)); )
 
     vrele(tvp);
+    NDFREE(&ndp, NDF_ONLY_PNBUF);
     return(error);
 }
 
@@ -745,29 +746,6 @@ coda_access(v)
     return(error);
 }
 
-/*
- * CODA abort op, called after namei() when a CREATE/DELETE isn't actually
- * done. If a buffer has been saved in anticipation of a coda_create or
- * a coda_remove, delete it.
- */
-/* ARGSUSED */
-int
-coda_abortop(v)
-    void *v;
-{
-/* true args */
-    struct vop_abortop_args /* {
-	struct vnode *a_dvp;
-	struct componentname *a_cnp;
-    } */ *ap = v;
-/* upcall decl */
-/* locals */
-
-    if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
-	zfree(namei_zone, ap->a_cnp->cn_pnbuf);
-    return (0);
-}
-
 int
 coda_readlink(v)
     void *v;
@@ -1208,14 +1186,6 @@ coda_create(v)
 	}
 #endif
     }
-    /* Have to free the previously saved name */
-    /* 
-     * This condition is stolen from ufs_makeinode.  I have no idea
-     * why it's here, but what the hey...
-     */
-    if ((cnp->cn_flags & SAVESTART) == 0) {
-	zfree(namei_zone, cnp->cn_pnbuf);
-    }
     return(error);
 }
 
@@ -1276,9 +1246,6 @@ coda_remove(v)
 
     CODADEBUG(CODA_REMOVE, myprintf(("in remove result %d\n",error)); )
 
-    if ((cnp->cn_flags & SAVESTART) == 0) {
-	zfree(namei_zone, cnp->cn_pnbuf);
-    }
     return(error);
 }
 
@@ -1332,10 +1299,6 @@ coda_link(v)
 
     CODADEBUG(CODA_LINK,	myprintf(("in link result %d\n",error)); )
 
-    /* Drop the name buffer if we don't need to SAVESTART */
-    if ((cnp->cn_flags & SAVESTART) == 0) {
-	zfree(namei_zone, cnp->cn_pnbuf);
-    }
     return(error);
 }
 
@@ -1502,14 +1465,6 @@ coda_mkdir(v)
 	CODADEBUG(CODA_MKDIR, myprintf(("mkdir error %d\n",error));)
     }
 
-    /* Have to free the previously saved name */
-    /* 
-     * ufs_mkdir doesn't check for SAVESTART before freeing the
-     * pathname buffer, but ufs_create does.  For the moment, I'll
-     * follow their lead, but this seems like it is probably
-     * incorrect.  
-     */
-    zfree(namei_zone, cnp->cn_pnbuf);
     return(error);
 }
 
@@ -1559,9 +1514,6 @@ coda_rmdir(v)
 
     CODADEBUG(CODA_RMDIR, myprintf(("in rmdir result %d\n", error)); )
 
-    if ((cnp->cn_flags & SAVESTART) == 0) {
-	zfree(namei_zone, cnp->cn_pnbuf);
-    }
     return(error);
 }
 
diff --git a/sys/compat/linux/linux_misc.c b/sys/compat/linux/linux_misc.c
index 36f1165..1835c9c 100644
--- a/sys/compat/linux/linux_misc.c
+++ b/sys/compat/linux/linux_misc.c
@@ -54,6 +54,7 @@
 #include <vm/vm_kern.h>
 #include <vm/vm_map.h>
 #include <vm/vm_extern.h>
+#include <vm/vm_zone.h>
 
 #include <machine/frame.h>
 #include <machine/psl.h>
@@ -194,10 +195,15 @@ linux_uselib(struct proc *p, struct linux_uselib_args *args)
 	goto cleanup;
 
     vp = ni.ni_vp;
+    /*
+     * XXX This looks like a bogus check - a LOCKLEAF namei should not succeed
+     * without returning a vnode.
+     */
     if (vp == NULL) {
 	error = ENOEXEC;	/* ?? */
 	goto cleanup;
     }
+    NDFREE(&ni, NDF_ONLY_PNBUF);
 
     /*
      * From here on down, we have a locked vnode that must be unlocked.
diff --git a/sys/compat/linux/linux_stats.c b/sys/compat/linux/linux_stats.c
index 14c8090..be40f15 100644
--- a/sys/compat/linux/linux_stats.c
+++ b/sys/compat/linux/linux_stats.c
@@ -44,6 +44,8 @@
 #include <i386/linux/linux_proto.h>
 #include <i386/linux/linux_util.h>
 
+#include <vm/vm_zone.h>
+
 struct linux_newstat {
 	u_short	stat_dev;
 	u_short	__pad1;
@@ -118,6 +120,7 @@ linux_newstat(struct proc *p, struct linux_newstat_args *args)
 	error = namei(&nd);
 	if (error)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 
 	error = vn_stat(nd.ni_vp, &buf, p);
 	vput(nd.ni_vp);
@@ -154,6 +157,7 @@ linux_newlstat(p, uap)
 	error = namei(&nd);
 	if (error)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF); 
 
 	vp = nd.ni_vp;
 	error = vn_stat(vp, &sb, p);
@@ -224,6 +228,7 @@ linux_statfs(struct proc *p, struct linux_statfs_args *args)
 	error = namei(ndp);
 	if (error)
 		return error;
+	NDFREE(ndp, NDF_ONLY_PNBUF);
 	mp = ndp->ni_vp->v_mount;
 	bsd_statfs = &mp->mnt_stat;
 	vrele(ndp->ni_vp);
diff --git a/sys/compat/linux/linux_util.c b/sys/compat/linux/linux_util.c
index 7c87174..0864ae7 100644
--- a/sys/compat/linux/linux_util.c
+++ b/sys/compat/linux/linux_util.c
@@ -39,6 +39,8 @@
 
 #include <i386/linux/linux_util.h>
 
+#include <vm/vm_zone.h>
+
 const char      linux_emul_path[] = "/compat/linux";
 
 /*
@@ -135,6 +137,7 @@ linux_emul_find(p, sgp, prefix, path, pbuf, cflag)
 		if ((error = namei(&ndroot)) != 0) {
 			/* Cannot happen! */
 			free(buf, M_TEMP);
+			NDFREE(&nd, NDF_ONLY_PNBUF);
 			vrele(nd.ni_vp);
 			return error;
 		}
@@ -164,13 +167,18 @@ linux_emul_find(p, sgp, prefix, path, pbuf, cflag)
 		free(buf, M_TEMP);
 	}
 
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vrele(nd.ni_vp);
-	if (!cflag)
+	if (!cflag) {
+		NDFREE(&ndroot, NDF_ONLY_PNBUF);
 		vrele(ndroot.ni_vp);
+	}
 	return error;
 
 bad:
+	NDFREE(&ndroot, NDF_ONLY_PNBUF);
 	vrele(ndroot.ni_vp);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vrele(nd.ni_vp);
 	free(buf, M_TEMP);
 	return error;
diff --git a/sys/compat/svr4/svr4_misc.c b/sys/compat/svr4/svr4_misc.c
index 2abacee..6399049 100644
--- a/sys/compat/svr4/svr4_misc.c
+++ b/sys/compat/svr4/svr4_misc.c
@@ -1650,7 +1650,7 @@ svr4_sys_resolvepath(p, uap)
 	*retval = strlen(nd.ni_cnd.cn_pnbuf) < SCARG(uap, bufsiz) ? 
 	  strlen(nd.ni_cnd.cn_pnbuf) + 1 : SCARG(uap, bufsiz);
 bad:
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vput(nd.ni_vp);
-	zfree(namei_zone, nd.ni_cnd.cn_pnbuf);
 	return error;
 }
diff --git a/sys/compat/svr4/svr4_sysvec.c b/sys/compat/svr4/svr4_sysvec.c
index f88b7d1..fbd4212 100644
--- a/sys/compat/svr4/svr4_sysvec.c
+++ b/sys/compat/svr4/svr4_sysvec.c
@@ -296,6 +296,7 @@ svr4_emul_find(p, sgp, prefix, path, pbuf, cflag)
 			free(buf, M_TEMP);
 			return error;
 		}
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 
 		*cp = '/';
 	}
@@ -306,6 +307,7 @@ svr4_emul_find(p, sgp, prefix, path, pbuf, cflag)
 			free(buf, M_TEMP);
 			return error;
 		}
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 
 		/*
 		 * We now compare the vnode of the svr4_root to the one
@@ -324,6 +326,7 @@ svr4_emul_find(p, sgp, prefix, path, pbuf, cflag)
 			vrele(nd.ni_vp);
 			return error;
 		}
+		NDFREE(&ndroot, NDF_ONLY_PNBUF);
 
 		if ((error = VOP_GETATTR(nd.ni_vp, &vat, p->p_ucred, p)) != 0) {
 			goto done;
diff --git a/sys/dev/ccd/ccd.c b/sys/dev/ccd/ccd.c
index 7f14c78..b70f8c2 100644
--- a/sys/dev/ccd/ccd.c
+++ b/sys/dev/ccd/ccd.c
@@ -109,6 +109,8 @@
 
 #include <sys/ccdvar.h>
 
+#include <vm/vm_zone.h>
+
 #if defined(CCDDEBUG) && !defined(DEBUG)
 #define DEBUG
 #endif
@@ -1598,15 +1600,13 @@ ccdlookup(path, p, vpp)
 	vp = nd.ni_vp;
 
 	if (vp->v_usecount > 1) {
-		VOP_UNLOCK(vp, 0, p);
-		(void)vn_close(vp, FREAD|FWRITE, p->p_ucred, p);
-		return (EBUSY);
+		error = EBUSY;
+		goto bad;
 	}
 
 	if (!vn_isdisk(vp)) {
-		VOP_UNLOCK(vp, 0, p);
-		(void)vn_close(vp, FREAD|FWRITE, p->p_ucred, p);
-		return (ENOTBLK);
+		error = ENOTBLK;
+		goto bad;
 	}
 
 #ifdef DEBUG
@@ -1615,8 +1615,15 @@ ccdlookup(path, p, vpp)
 #endif
 
 	VOP_UNLOCK(vp, 0, p);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	*vpp = vp;
 	return (0);
+bad:
+	VOP_UNLOCK(vp, 0, p);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
+	/* vn_close does vrele() for vp */
+	(void)vn_close(vp, FREAD|FWRITE, p->p_ucred, p);
+	return (error);
 }
 
 /*
diff --git a/sys/dev/vinum/vinumio.c b/sys/dev/vinum/vinumio.c
index aec7696..e9f7a54 100644
--- a/sys/dev/vinum/vinumio.c
+++ b/sys/dev/vinum/vinumio.c
@@ -40,6 +40,8 @@
 #include <dev/vinum/vinumhdr.h>
 #include <dev/vinum/request.h>
 
+#include <vm/vm_zone.h>
+
 static char *sappend(char *txt, char *s);
 static int drivecmp(const void *va, const void *vb);
 
@@ -77,6 +79,7 @@ open_drive(struct drive *drive, struct proc *p, int verbose)
 		drive->vp->v_usecount);
     }
     if (!vn_isdisk(drive->vp)) {			    /* only consider block devices */
+    	NDFREE(&nd, NDF_ONLY_PNBUF);
 	VOP_UNLOCK(drive->vp, 0, drive->p);
 	close_drive(drive);
 	drive->lasterror = ENOTBLK;
@@ -88,6 +91,7 @@ open_drive(struct drive *drive, struct proc *p, int verbose)
     }
     drive->vp->v_numoutput = 0;
     VOP_UNLOCK(drive->vp, 0, drive->p);
+    NDFREE(&nd, NDF_NO_VP_RELE);
     return 0;
 }
 
diff --git a/sys/dev/vn/vn.c b/sys/dev/vn/vn.c
index 0c16450..0d8e9e3 100644
--- a/sys/dev/vn/vn.c
+++ b/sys/dev/vn/vn.c
@@ -534,6 +534,7 @@ vniocattach_file(vn, vio, dev, flag, p)
 		if (error)
 			return (error);
 	}
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (nd.ni_vp->v_type != VREG ||
 	    (error = VOP_GETATTR(nd.ni_vp, &vattr, p->p_ucred, p))) {
 		VOP_UNLOCK(nd.ni_vp, 0, p);
diff --git a/sys/fs/cd9660/cd9660_vfsops.c b/sys/fs/cd9660/cd9660_vfsops.c
index 8702879..3ecdb06 100644
--- a/sys/fs/cd9660/cd9660_vfsops.c
+++ b/sys/fs/cd9660/cd9660_vfsops.c
@@ -54,6 +54,8 @@
 #include <sys/stat.h>
 #include <sys/syslog.h>
 
+#include <vm/vm_zone.h>
+
 #include <isofs/cd9660/iso.h>
 #include <isofs/cd9660/iso_rrip.h>
 #include <isofs/cd9660/cd9660_node.h>
@@ -209,6 +211,7 @@ cd9660_mount(mp, path, data, ndp, p)
 	NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, args.fspec, p);
 	if ((error = namei(ndp)))
 		return (error);
+	NDFREE(ndp, NDF_ONLY_PNBUF);
 	devvp = ndp->ni_vp;
 
 	if (!vn_isdisk(devvp)) {
diff --git a/sys/fs/cd9660/cd9660_vnops.c b/sys/fs/cd9660/cd9660_vnops.c
index 2f93731..65ad938 100644
--- a/sys/fs/cd9660/cd9660_vnops.c
+++ b/sys/fs/cd9660/cd9660_vnops.c
@@ -73,7 +73,6 @@ static int iso_uiodir __P((struct isoreaddir *idp, struct dirent *dp,
 static int iso_shipdir __P((struct isoreaddir *idp));
 static int cd9660_readdir __P((struct vop_readdir_args *));
 static int cd9660_readlink __P((struct vop_readlink_args *ap));
-static int cd9660_abortop __P((struct vop_abortop_args *));
 static int cd9660_strategy __P((struct vop_strategy_args *));
 static int cd9660_print __P((struct vop_print_args *));
 static int cd9660_getpages __P((struct vop_getpages_args *));
@@ -737,22 +736,6 @@ cd9660_readlink(ap)
 }
 
 /*
- * Ufs abort op, called after namei() when a CREATE/DELETE isn't actually
- * done. If a buffer has been saved in anticipation of a CREATE, delete it.
- */
-static int
-cd9660_abortop(ap)
-	struct vop_abortop_args /* {
-		struct vnode *a_dvp;
-		struct componentname *a_cnp;
-	} */ *ap;
-{
-	if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
-		zfree(namei_zone, ap->a_cnp->cn_pnbuf);
-	return (0);
-}
-
-/*
  * Calculate the logical to physical mapping if not done already,
  * then call the device strategy routine.
  */
@@ -880,7 +863,6 @@ cd9660_putpages(ap)
 vop_t **cd9660_vnodeop_p;
 static struct vnodeopv_entry_desc cd9660_vnodeop_entries[] = {
 	{ &vop_default_desc,		(vop_t *) vop_defaultop },
-	{ &vop_abortop_desc,		(vop_t *) cd9660_abortop },
 	{ &vop_access_desc,		(vop_t *) cd9660_access },
 	{ &vop_bmap_desc,		(vop_t *) cd9660_bmap },
 	{ &vop_cachedlookup_desc,	(vop_t *) cd9660_lookup },
diff --git a/sys/fs/coda/coda_vfsops.c b/sys/fs/coda/coda_vfsops.c
index 615289c..04cf95b 100644
--- a/sys/fs/coda/coda_vfsops.c
+++ b/sys/fs/coda/coda_vfsops.c
@@ -56,6 +56,8 @@
 #include <sys/mount.h>
 #include <sys/select.h>
 
+#include <vm/vm_zone.h>
+
 #include <coda/coda.h>
 #include <coda/cnode.h>
 #include <coda/coda_vfsops.h>
@@ -134,7 +136,6 @@ coda_mount(vfsp, path, data, ndp, p)
     }
     
     /* Validate mount device.  Similar to getmdev(). */
-
     NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, data, p);
     error = namei(ndp);
     dvp = ndp->ni_vp;
@@ -146,10 +147,12 @@ coda_mount(vfsp, path, data, ndp, p)
     if (dvp->v_type != VCHR) {
 	MARK_INT_FAIL(CODA_MOUNT_STATS);
 	vrele(dvp);
+	NDFREE(ndp, NDF_ONLY_PNBUF);
 	return(ENXIO);
     }
     dev = dvp->v_rdev;
     vrele(dvp);
+    NDFREE(ndp, NDF_ONLY_PNBUF);
 
     /*
      * See if the device table matches our expectations.
diff --git a/sys/fs/coda/coda_vnops.c b/sys/fs/coda/coda_vnops.c
index 1ef09bc..761ebcc 100644
--- a/sys/fs/coda/coda_vnops.c
+++ b/sys/fs/coda/coda_vnops.c
@@ -131,7 +131,6 @@ struct vnodeopv_entry_desc coda_vnodeop_entries[] = {
     { &vop_symlink_desc, coda_symlink },	/* symlink */
     { &vop_readdir_desc, coda_readdir },	/* readdir */
     { &vop_readlink_desc, coda_readlink },	/* readlink */
-    { &vop_abortop_desc, coda_abortop },	/* abortop */
     { &vop_inactive_desc, coda_inactive },	/* inactive */
     { &vop_reclaim_desc, coda_reclaim },	/* reclaim */
     { &vop_lock_desc, coda_lock },		/* lock */
@@ -563,6 +562,7 @@ coda_ioctl(v)
      */
     if (tvp->v_op != coda_vnodeop_p) {
 	vrele(tvp);
+	NDFREE(&ndp, NDF_ONLY_PNBUF);
 	MARK_INT_FAIL(CODA_IOCTL_STATS);
 	CODADEBUG(CODA_IOCTL, 
 		 myprintf(("coda_ioctl error: %s not a coda object\n", 
@@ -571,7 +571,7 @@ coda_ioctl(v)
     }
 
     if (iap->vi.in_size > VC_MAXDATASIZE) {
-	vrele(tvp);
+	NDFREE(&ndp, 0);
 	return(EINVAL);
     }
     error = venus_ioctl(vtomi(tvp), &((VTOC(tvp))->c_fid), com, flag, data, cred, p);
@@ -582,6 +582,7 @@ coda_ioctl(v)
 	CODADEBUG(CODA_IOCTL, myprintf(("Ioctl returns %d \n", error)); )
 
     vrele(tvp);
+    NDFREE(&ndp, NDF_ONLY_PNBUF);
     return(error);
 }
 
@@ -745,29 +746,6 @@ coda_access(v)
     return(error);
 }
 
-/*
- * CODA abort op, called after namei() when a CREATE/DELETE isn't actually
- * done. If a buffer has been saved in anticipation of a coda_create or
- * a coda_remove, delete it.
- */
-/* ARGSUSED */
-int
-coda_abortop(v)
-    void *v;
-{
-/* true args */
-    struct vop_abortop_args /* {
-	struct vnode *a_dvp;
-	struct componentname *a_cnp;
-    } */ *ap = v;
-/* upcall decl */
-/* locals */
-
-    if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
-	zfree(namei_zone, ap->a_cnp->cn_pnbuf);
-    return (0);
-}
-
 int
 coda_readlink(v)
     void *v;
@@ -1208,14 +1186,6 @@ coda_create(v)
 	}
 #endif
     }
-    /* Have to free the previously saved name */
-    /* 
-     * This condition is stolen from ufs_makeinode.  I have no idea
-     * why it's here, but what the hey...
-     */
-    if ((cnp->cn_flags & SAVESTART) == 0) {
-	zfree(namei_zone, cnp->cn_pnbuf);
-    }
     return(error);
 }
 
@@ -1276,9 +1246,6 @@ coda_remove(v)
 
     CODADEBUG(CODA_REMOVE, myprintf(("in remove result %d\n",error)); )
 
-    if ((cnp->cn_flags & SAVESTART) == 0) {
-	zfree(namei_zone, cnp->cn_pnbuf);
-    }
     return(error);
 }
 
@@ -1332,10 +1299,6 @@ coda_link(v)
 
     CODADEBUG(CODA_LINK,	myprintf(("in link result %d\n",error)); )
 
-    /* Drop the name buffer if we don't need to SAVESTART */
-    if ((cnp->cn_flags & SAVESTART) == 0) {
-	zfree(namei_zone, cnp->cn_pnbuf);
-    }
     return(error);
 }
 
@@ -1502,14 +1465,6 @@ coda_mkdir(v)
 	CODADEBUG(CODA_MKDIR, myprintf(("mkdir error %d\n",error));)
     }
 
-    /* Have to free the previously saved name */
-    /* 
-     * ufs_mkdir doesn't check for SAVESTART before freeing the
-     * pathname buffer, but ufs_create does.  For the moment, I'll
-     * follow their lead, but this seems like it is probably
-     * incorrect.  
-     */
-    zfree(namei_zone, cnp->cn_pnbuf);
     return(error);
 }
 
@@ -1559,9 +1514,6 @@ coda_rmdir(v)
 
     CODADEBUG(CODA_RMDIR, myprintf(("in rmdir result %d\n", error)); )
 
-    if ((cnp->cn_flags & SAVESTART) == 0) {
-	zfree(namei_zone, cnp->cn_pnbuf);
-    }
     return(error);
 }
 
diff --git a/sys/fs/fifofs/fifo_vnops.c b/sys/fs/fifofs/fifo_vnops.c
index 4a8199a..b64f957 100644
--- a/sys/fs/fifofs/fifo_vnops.c
+++ b/sys/fs/fifofs/fifo_vnops.c
@@ -79,7 +79,6 @@ static int	fifo_advlock __P((struct vop_advlock_args *));
 vop_t **fifo_vnodeop_p;
 static struct vnodeopv_entry_desc fifo_vnodeop_entries[] = {
 	{ &vop_default_desc,		(vop_t *) vop_defaultop },
-	{ &vop_abortop_desc,		(vop_t *) fifo_badop },
 	{ &vop_access_desc,		(vop_t *) vop_ebadf },
 	{ &vop_advlock_desc,		(vop_t *) fifo_advlock },
 	{ &vop_bmap_desc,		(vop_t *) fifo_bmap },
diff --git a/sys/fs/hpfs/hpfs_vnops.c b/sys/fs/hpfs/hpfs_vnops.c
index acc2949..e8cb76a 100644
--- a/sys/fs/hpfs/hpfs_vnops.c
+++ b/sys/fs/hpfs/hpfs_vnops.c
@@ -1318,28 +1318,9 @@ hpfs_create(ap)
 
 	error = hpfs_makefnode (ap->a_dvp, ap->a_vpp, ap->a_cnp, ap->a_vap);
 
-	if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
-		zfree(namei_zone, ap->a_cnp->cn_pnbuf);
-
 	return (error);
 }
 
-static int
-hpfs_abortop(ap)
-	struct vop_abortop_args /* {
-		struct vnode *a_dvp;
-		struct componentname *a_cnp;
-	} */ *ap;
-{
-	dprintf(("hpfs_abortop(0x%x, %s, %ld): \n", VTOHP(ap->a_dvp)->h_no,
-		ap->a_cnp->cn_nameptr, ap->a_cnp->cn_namelen));
-
-	if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
-		zfree(namei_zone, ap->a_cnp->cn_pnbuf);
-
-	return (0);
-}
-
 /*
  * Return POSIX pathconf information applicable to NTFS filesystem
  */
diff --git a/sys/fs/msdosfs/msdosfs_vfsops.c b/sys/fs/msdosfs/msdosfs_vfsops.c
index 5005de3..3fd65ec 100644
--- a/sys/fs/msdosfs/msdosfs_vfsops.c
+++ b/sys/fs/msdosfs/msdosfs_vfsops.c
@@ -60,6 +60,7 @@
 #include <sys/fcntl.h>
 #include <sys/malloc.h>
 #include <sys/stat.h> 				/* defines ALLPERMS */
+#include <vm/vm_zone.h>
 
 #include <msdosfs/bpb.h>
 #include <msdosfs/bootsect.h>
@@ -288,6 +289,7 @@ msdosfs_mount(mp, path, data, ndp, p)
 	if (error)
 		return (error);
 	devvp = ndp->ni_vp;
+	NDFREE(ndp, NDF_ONLY_PNBUF);
 
 	if (!vn_isdisk(devvp)) {
 		vrele(devvp);
diff --git a/sys/fs/msdosfs/msdosfs_vnops.c b/sys/fs/msdosfs/msdosfs_vnops.c
index 05139a7..3ef8e74 100644
--- a/sys/fs/msdosfs/msdosfs_vnops.c
+++ b/sys/fs/msdosfs/msdosfs_vnops.c
@@ -93,7 +93,6 @@ static int msdosfs_mkdir __P((struct vop_mkdir_args *));
 static int msdosfs_rmdir __P((struct vop_rmdir_args *));
 static int msdosfs_symlink __P((struct vop_symlink_args *));
 static int msdosfs_readdir __P((struct vop_readdir_args *));
-static int msdosfs_abortop __P((struct vop_abortop_args *));
 static int msdosfs_bmap __P((struct vop_bmap_args *));
 static int msdosfs_strategy __P((struct vop_strategy_args *));
 static int msdosfs_print __P((struct vop_print_args *));
@@ -185,13 +184,10 @@ msdosfs_create(ap)
 	error = createde(&ndirent, pdep, &dep, cnp);
 	if (error)
 		goto bad;
-	if ((cnp->cn_flags & SAVESTART) == 0)
-		zfree(namei_zone, cnp->cn_pnbuf);
 	*ap->a_vpp = DETOV(dep);
 	return (0);
 
 bad:
-	zfree(namei_zone, cnp->cn_pnbuf);
 	return (error);
 }
 
@@ -215,7 +211,6 @@ msdosfs_mknod(ap)
 		break;
 
 	default:
-		zfree(namei_zone, ap->a_cnp->cn_pnbuf);
 		return (EINVAL);
 	}
 	/* NOTREACHED */
@@ -906,7 +901,6 @@ msdosfs_link(ap)
 		struct componentname *a_cnp;
 	} */ *ap;
 {
-	VOP_ABORTOP(ap->a_tdvp, ap->a_cnp);
 	return (EOPNOTSUPP);
 }
 
@@ -1015,14 +1009,12 @@ msdosfs_rename(ap)
 	    (tvp && (fvp->v_mount != tvp->v_mount))) {
 		error = EXDEV;
 abortit:
-		VOP_ABORTOP(tdvp, tcnp);
 		if (tdvp == tvp)
 			vrele(tdvp);
 		else
 			vput(tdvp);
 		if (tvp)
 			vput(tvp);
-		VOP_ABORTOP(fdvp, fcnp);
 		vrele(fdvp);
 		vrele(fvp);
 		return (error);
@@ -1420,15 +1412,12 @@ msdosfs_mkdir(ap)
 	error = createde(&ndirent, pdep, &dep, cnp);
 	if (error)
 		goto bad;
-	if ((cnp->cn_flags & SAVESTART) == 0)
-		zfree(namei_zone, cnp->cn_pnbuf);
 	*ap->a_vpp = DETOV(dep);
 	return (0);
 
 bad:
 	clusterfree(pmp, newcluster, NULL);
 bad2:
-	zfree(namei_zone, cnp->cn_pnbuf);
 	return (error);
 }
 
@@ -1504,8 +1493,6 @@ msdosfs_symlink(ap)
 		char *a_target;
 	} */ *ap;
 {
-	zfree(namei_zone, ap->a_cnp->cn_pnbuf);
-	/* VOP_ABORTOP(ap->a_dvp, ap->a_cnp); ??? */
 	return (EOPNOTSUPP);
 }
 
@@ -1776,18 +1763,6 @@ out:
 	return (error);
 }
 
-static int
-msdosfs_abortop(ap)
-	struct vop_abortop_args /* {
-		struct vnode *a_dvp;
-		struct componentname *a_cnp;
-	} */ *ap;
-{
-	if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
-		zfree(namei_zone, ap->a_cnp->cn_pnbuf);
-	return (0);
-}
-
 /*
  * vp  - address of vnode file the file
  * bn  - which cluster we are interested in mapping to a filesystem block number.
@@ -1950,7 +1925,6 @@ msdosfs_putpages(ap)
 vop_t **msdosfs_vnodeop_p;
 static struct vnodeopv_entry_desc msdosfs_vnodeop_entries[] = {
 	{ &vop_default_desc,		(vop_t *) vop_defaultop },
-	{ &vop_abortop_desc,		(vop_t *) msdosfs_abortop },
 	{ &vop_access_desc,		(vop_t *) msdosfs_access },
 	{ &vop_bmap_desc,		(vop_t *) msdosfs_bmap },
 	{ &vop_cachedlookup_desc,	(vop_t *) msdosfs_lookup },
diff --git a/sys/fs/ntfs/ntfs_vfsops.c b/sys/fs/ntfs/ntfs_vfsops.c
index 9ad0775..6bc0555 100644
--- a/sys/fs/ntfs/ntfs_vfsops.c
+++ b/sys/fs/ntfs/ntfs_vfsops.c
@@ -53,6 +53,7 @@
 #include <vm/vm_page.h>
 #include <vm/vm_object.h>
 #include <vm/vm_extern.h>
+#include <vm/vm_zone.h>
 
 #if defined(__NetBSD__)
 #include <miscfs/specfs/specdev.h>
@@ -316,7 +317,7 @@ ntfs_mount (
 		/* can't get devvp!*/
 		goto error_1;
 	}
-
+	NDFREE(ndp, NDF_ONLY_PNBUF);
 	devvp = ndp->ni_vp;
 
 #if defined(__FreeBSD__)
diff --git a/sys/fs/nullfs/null_vfsops.c b/sys/fs/nullfs/null_vfsops.c
index e48a516..1bdc083 100644
--- a/sys/fs/nullfs/null_vfsops.c
+++ b/sys/fs/nullfs/null_vfsops.c
@@ -53,6 +53,7 @@
 #include <sys/mount.h>
 #include <sys/namei.h>
 #include <miscfs/nullfs/null.h>
+#include <vm/vm_zone.h>
 
 static MALLOC_DEFINE(M_NULLFSMNT, "NULLFS mount", "NULLFS mount structure");
 
@@ -137,6 +138,7 @@ nullfs_mount(mp, path, data, ndp, p)
 
 	if (error)
 		return (error);
+	NDFREE(ndp, NDF_ONLY_PNBUF);
 
 	/*
 	 * Sanity check on lower vnode
diff --git a/sys/fs/nwfs/nwfs_vnops.c b/sys/fs/nwfs/nwfs_vnops.c
index 29d7a82..22df1b3 100644
--- a/sys/fs/nwfs/nwfs_vnops.c
+++ b/sys/fs/nwfs/nwfs_vnops.c
@@ -77,7 +77,6 @@ static int nwfs_mkdir __P((struct vop_mkdir_args *));
 static int nwfs_rmdir __P((struct vop_rmdir_args *));
 static int nwfs_symlink __P((struct vop_symlink_args *));
 static int nwfs_readdir __P((struct vop_readdir_args *));
-static int nwfs_abortop __P((struct vop_abortop_args *));
 static int nwfs_bmap __P((struct vop_bmap_args *));
 static int nwfs_strategy __P((struct vop_strategy_args *));
 static int nwfs_print __P((struct vop_print_args *));
@@ -87,7 +86,6 @@ static int nwfs_pathconf __P((struct vop_pathconf_args *ap));
 vop_t **nwfs_vnodeop_p;
 static struct vnodeopv_entry_desc nwfs_vnodeop_entries[] = {
 	{ &vop_default_desc,		(vop_t *) vop_defaultop },
-	{ &vop_abortop_desc,		(vop_t *) nwfs_abortop },
 	{ &vop_access_desc,		(vop_t *) nwfs_access },
 	{ &vop_bmap_desc,		(vop_t *) nwfs_bmap },
 	{ &vop_open_desc,		(vop_t *) nwfs_open },
@@ -453,7 +451,6 @@ nwfs_create(ap)
 	if (vap->va_type == VSOCK)
 		return (EOPNOTSUPP);
 	if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_proc))) {
-		VOP_ABORTOP(dvp, cnp);
 		return (error);
 	}
 	fmode = AR_READ | AR_WRITE;
@@ -476,7 +473,6 @@ nwfs_create(ap)
 		if (cnp->cn_flags & MAKEENTRY)
 			cache_enter(dvp, vp, cnp);
 	}
-	zfree(namei_zone, cnp->cn_pnbuf);
 	return (error);
 }
 
@@ -510,7 +506,6 @@ nwfs_remove(ap)
 		    cnp->cn_namelen,cnp->cn_nameptr,cnp->cn_proc,cnp->cn_cred);
 		if (error == 0x899c) error = EACCES;
 	}
-	zfree(namei_zone, cnp->cn_pnbuf);
 	return (error);
 }
 
@@ -604,9 +599,7 @@ out:
 
 /*
  * nwfs hard link create call
- * Netware filesystems don't know what links are. But since we already called
- * nwfs_lookup() with create and lockparent, the parent is locked so we
- * have to free it before we return the error.
+ * Netware filesystems don't know what links are.
  */
 static int
 nwfs_link(ap)
@@ -616,8 +609,6 @@ nwfs_link(ap)
 		struct componentname *a_cnp;
 	} */ *ap;
 {
-/*	VOP_ABORTOP(ap->a_tdvp, ap->a_cnp);*/
-	zfree(namei_zone, ap->a_cnp->cn_pnbuf);
 	return EOPNOTSUPP;
 }
 
@@ -635,8 +626,6 @@ nwfs_symlink(ap)
 		char *a_target;
 	} */ *ap;
 {
-	zfree(namei_zone, ap->a_cnp->cn_pnbuf);
-	/* VOP_ABORTOP(ap->a_dvp, ap->a_cnp); ??? */
 	return (EOPNOTSUPP);
 }
 
@@ -672,11 +661,9 @@ nwfs_mkdir(ap)
 	char *name=cnp->cn_nameptr;
 
 	if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_proc))) {
-		VOP_ABORTOP(dvp, cnp);
 		return (error);
 	}	
 	if ((name[0] == '.') && ((len == 1) || ((len == 2) && (name[1] == '.')))) {
-		VOP_ABORTOP(dvp, cnp);
 		return EEXIST;
 	}
 	if (ncp_open_create_file_or_subdir(VTONWFS(dvp),dvp, cnp->cn_namelen,
@@ -696,7 +683,6 @@ nwfs_mkdir(ap)
 			*ap->a_vpp = newvp;
 		}
 	}
-	zfree(namei_zone, cnp->cn_pnbuf);
 	return (error);
 }
 
@@ -724,7 +710,6 @@ nwfs_rmdir(ap)
 	error = ncp_DeleteNSEntry(nmp, dnp->n_fid.f_id, 
 		cnp->cn_namelen, cnp->cn_nameptr,cnp->cn_proc,cnp->cn_cred);
 	if (error == NWE_DIR_NOT_EMPTY) error = ENOTEMPTY;
-	zfree(namei_zone, cnp->cn_pnbuf);
 	dnp->n_flag |= NMODIFIED;
 	nwfs_attr_cacheremove(dvp);
 	cache_purge(dvp);
@@ -864,23 +849,6 @@ nwfs_bmap(ap)
 		*ap->a_runb = 0;
 	return (0);
 }
-/*
- * nwfs abort op, called after namei() when a CREATE/DELETE isn't actually
- * done. Currently nothing to do.
- */
-/* ARGSUSED */
-int
-nwfs_abortop(ap)
-	struct vop_abortop_args /* {
-		struct vnode *a_dvp;
-		struct componentname *a_cnp;
-	} */ *ap;
-{
-
-	if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
-		zfree(namei_zone, ap->a_cnp->cn_pnbuf);
-	return (0);
-}
 
 int
 nwfs_nget(struct mount *mp, ncpfid fid, struct nw_entry_info *fap,
diff --git a/sys/fs/procfs/procfs_vnops.c b/sys/fs/procfs/procfs_vnops.c
index 17075db..d7de7ce 100644
--- a/sys/fs/procfs/procfs_vnops.c
+++ b/sys/fs/procfs/procfs_vnops.c
@@ -60,7 +60,6 @@
 #include <miscfs/procfs/procfs.h>
 #include <sys/pioctl.h>
 
-static int	procfs_abortop __P((struct vop_abortop_args *));
 static int	procfs_access __P((struct vop_access_args *));
 static int	procfs_badop __P((void));
 static int	procfs_bmap __P((struct vop_bmap_args *));
@@ -391,25 +390,6 @@ procfs_print(ap)
 }
 
 /*
- * _abortop is called when operations such as
- * rename and create fail.  this entry is responsible
- * for undoing any side-effects caused by the lookup.
- * this will always include freeing the pathname buffer.
- */
-static int
-procfs_abortop(ap)
-	struct vop_abortop_args /* {
-		struct vnode *a_dvp;
-		struct componentname *a_cnp;
-	} */ *ap;
-{
-
-	if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
-		zfree(namei_zone, ap->a_cnp->cn_pnbuf);
-	return (0);
-}
-
-/*
  * generic entry point for unsupported operations
  */
 static int
@@ -997,7 +977,6 @@ atopid(b, len)
 vop_t **procfs_vnodeop_p;
 static struct vnodeopv_entry_desc procfs_vnodeop_entries[] = {
 	{ &vop_default_desc,		(vop_t *) vop_defaultop },
-	{ &vop_abortop_desc,		(vop_t *) procfs_abortop },
 	{ &vop_access_desc,		(vop_t *) procfs_access },
 	{ &vop_advlock_desc,		(vop_t *) procfs_badop },
 	{ &vop_bmap_desc,		(vop_t *) procfs_bmap },
diff --git a/sys/fs/umapfs/umap_vfsops.c b/sys/fs/umapfs/umap_vfsops.c
index afa44f0..48894fe 100644
--- a/sys/fs/umapfs/umap_vfsops.c
+++ b/sys/fs/umapfs/umap_vfsops.c
@@ -52,6 +52,7 @@
 #include <sys/namei.h>
 #include <sys/malloc.h>
 #include <miscfs/umapfs/umap.h>
+#include <vm/vm_zone.h>
 
 static MALLOC_DEFINE(M_UMAPFSMNT, "UMAP mount", "UMAP mount structure");
 
@@ -129,6 +130,7 @@ umapfs_mount(mp, path, data, ndp, p)
 	error = namei(ndp);
 	if (error)
 		return (error);
+	NDFREE(ndp, NDF_ONLY_PNBUF);
 
 	/*
 	 * Sanity check on lower vnode
diff --git a/sys/fs/unionfs/union_subr.c b/sys/fs/unionfs/union_subr.c
index d7caf10..6b88bef 100644
--- a/sys/fs/unionfs/union_subr.c
+++ b/sys/fs/unionfs/union_subr.c
@@ -846,8 +846,6 @@ union_relookup(um, dvp, vpp, cnp, cn, path, pathlen)
 	 * by namei, some of the work done by lookup and some of
 	 * the work done by VOP_LOOKUP when given a CREATE flag.
 	 * Conclusion: Horrible.
-	 *
-	 * The pathname buffer will be FREEed by VOP_MKDIR.
 	 */
 	cn->cn_namelen = pathlen;
 	cn->cn_pnbuf = zalloc(namei_zone);
@@ -874,8 +872,6 @@ union_relookup(um, dvp, vpp, cnp, cn, path, pathlen)
 	 */
 
 	if ((error = relookup(dvp, vpp, cn)) != 0) {
-		zfree(namei_zone, cn->cn_pnbuf);
-		cn->cn_pnbuf = NULL;
 		vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY, cnp->cn_proc);
 		return(error);
 	}
@@ -921,7 +917,10 @@ union_mkshadow(um, dvp, cnp, vpp)
 		return (error);
 
 	if (*vpp) {
-		VOP_ABORTOP(dvp, &cn);
+		if (cn.cn_flags & HASBUF) {
+			zfree(namei_zone, cn.cn_pnbuf);
+			cn.cn_flags &= ~HASBUF;
+		}
 		if (dvp == *vpp)
 			vrele(*vpp);
 		else
@@ -946,6 +945,10 @@ union_mkshadow(um, dvp, cnp, vpp)
 	VOP_LEASE(dvp, p, cn.cn_cred, LEASE_WRITE);
 
 	error = VOP_MKDIR(dvp, vpp, &cn, &va);
+	if (cn.cn_flags & HASBUF) {
+		zfree(namei_zone, cn.cn_pnbuf);
+		cn.cn_flags &= ~HASBUF;
+	}
 	/*vput(dvp);*/
 	return (error);
 }
@@ -976,7 +979,10 @@ union_mkwhiteout(um, dvp, cnp, path)
 		return (error);
 
 	if (wvp) {
-		VOP_ABORTOP(dvp, &cn);
+		if (cn.cn_flags & HASBUF) {
+			zfree(namei_zone, cn.cn_pnbuf);
+			cn.cn_flags &= ~HASBUF;
+		}
 		if (wvp == dvp)
 			vrele(wvp);
 		else
@@ -988,8 +994,10 @@ union_mkwhiteout(um, dvp, cnp, path)
 	VOP_LEASE(dvp, p, p->p_ucred, LEASE_WRITE);
 
 	error = VOP_WHITEOUT(dvp, &cn, CREATE);
-	if (error)
-		VOP_ABORTOP(dvp, &cn);
+	if (cn.cn_flags & HASBUF) {
+		zfree(namei_zone, cn.cn_pnbuf);
+		cn.cn_flags &= ~HASBUF;
+	}
 	return (error);
 }
 
@@ -1059,7 +1067,10 @@ union_vn_create(vpp, un, p)
 	 */
 	if (vp) {
 		vput(un->un_dirvp);
-		VOP_ABORTOP(un->un_dirvp, &cn);
+		if (cn.cn_flags & HASBUF) {
+			zfree(namei_zone, cn.cn_pnbuf);
+			cn.cn_flags &= ~HASBUF;
+		}
 		if (vp == un->un_dirvp)
 			vrele(vp);
 		else
@@ -1082,6 +1093,10 @@ union_vn_create(vpp, un, p)
 	vap->va_mode = cmode;
 	VOP_LEASE(un->un_dirvp, p, cred, LEASE_WRITE);
 	error = VOP_CREATE(un->un_dirvp, &vp, &cn, vap);
+	if (cn.cn_flags & HASBUF) {
+		zfree(namei_zone, cn.cn_pnbuf);
+		cn.cn_flags &= ~HASBUF;
+	}
 	vput(un->un_dirvp);
 	if (error)
 		return (error);
diff --git a/sys/fs/unionfs/union_vfsops.c b/sys/fs/unionfs/union_vfsops.c
index ccd9a13..f5782fa 100644
--- a/sys/fs/unionfs/union_vfsops.c
+++ b/sys/fs/unionfs/union_vfsops.c
@@ -52,6 +52,7 @@
 #include <sys/malloc.h>
 #include <sys/filedesc.h>
 #include <miscfs/union/union.h>
+#include <vm/vm_zone.h>
 
 static MALLOC_DEFINE(M_UNIONFSMNT, "UNION mount", "UNION mount structure");
 
@@ -144,6 +145,7 @@ union_mount(mp, path, data, ndp, p)
 	if (error)
 		goto bad;
 
+	NDFREE(ndp, NDF_ONLY_PNBUF);
 	upperrootvp = ndp->ni_vp;
 	vrele(ndp->ni_dvp);
 	ndp->ni_dvp = NULL;
diff --git a/sys/fs/unionfs/union_vnops.c b/sys/fs/unionfs/union_vnops.c
index 5ab1036..03d41a0 100644
--- a/sys/fs/unionfs/union_vnops.c
+++ b/sys/fs/unionfs/union_vnops.c
@@ -67,7 +67,6 @@ SYSCTL_INT(_vfs, OID_AUTO, uniondebug, CTLFLAG_RW, &uniondebug, 0, "");
 SYSCTL_INT(_vfs, OID_AUTO, uniondebug, CTLFLAG_RD, &uniondebug, 0, "");
 #endif
 
-static int	union_abortop __P((struct vop_abortop_args *ap));
 static int	union_access __P((struct vop_access_args *ap));
 static int	union_advlock __P((struct vop_advlock_args *ap));
 static int	union_bmap __P((struct vop_bmap_args *ap));
@@ -1682,43 +1681,6 @@ union_readlink(ap)
 }
 
 /*
- *	union_abortop:
- *
- *	dvp is locked on entry and left locked on return
- *
- */
-
-static int
-union_abortop(ap)
-	struct vop_abortop_args /* {
-		struct vnode *a_dvp;
-		struct componentname *a_cnp;
-	} */ *ap;
-{
-	struct componentname *cnp = ap->a_cnp;
-	struct proc *p = cnp->cn_proc;
-	struct union_node *un = VTOUNION(ap->a_dvp);
-	int islocked = VOP_ISLOCKED(ap->a_dvp, NULL);
-	struct vnode *vp;
-	int error;
-
-	if (islocked) {
-		vp = union_lock_other(un, p);
-	} else {
-		vp = OTHERVP(ap->a_dvp);
-	}
-	KASSERT(vp != NULL, ("union_abortop: backing vnode missing!"));
-
-	ap->a_dvp = vp;
-	error = VCALL(vp, VOFFSET(vop_abortop), ap);
-
-	if (islocked)
-		union_unlock_other(vp, p);
-
-	return (error);
-}
-
-/*
  *	union_inactive:
  *
  *	Called with the vnode locked.  We are expected to unlock the vnode.
@@ -1974,7 +1936,6 @@ union_strategy(ap)
 vop_t **union_vnodeop_p;
 static struct vnodeopv_entry_desc union_vnodeop_entries[] = {
 	{ &vop_default_desc,		(vop_t *) vop_defaultop },
-	{ &vop_abortop_desc,		(vop_t *) union_abortop },
 	{ &vop_access_desc,		(vop_t *) union_access },
 	{ &vop_advlock_desc,		(vop_t *) union_advlock },
 	{ &vop_bmap_desc,		(vop_t *) union_bmap },
diff --git a/sys/geom/geom_ccd.c b/sys/geom/geom_ccd.c
index 7f14c78..b70f8c2 100644
--- a/sys/geom/geom_ccd.c
+++ b/sys/geom/geom_ccd.c
@@ -109,6 +109,8 @@
 
 #include <sys/ccdvar.h>
 
+#include <vm/vm_zone.h>
+
 #if defined(CCDDEBUG) && !defined(DEBUG)
 #define DEBUG
 #endif
@@ -1598,15 +1600,13 @@ ccdlookup(path, p, vpp)
 	vp = nd.ni_vp;
 
 	if (vp->v_usecount > 1) {
-		VOP_UNLOCK(vp, 0, p);
-		(void)vn_close(vp, FREAD|FWRITE, p->p_ucred, p);
-		return (EBUSY);
+		error = EBUSY;
+		goto bad;
 	}
 
 	if (!vn_isdisk(vp)) {
-		VOP_UNLOCK(vp, 0, p);
-		(void)vn_close(vp, FREAD|FWRITE, p->p_ucred, p);
-		return (ENOTBLK);
+		error = ENOTBLK;
+		goto bad;
 	}
 
 #ifdef DEBUG
@@ -1615,8 +1615,15 @@ ccdlookup(path, p, vpp)
 #endif
 
 	VOP_UNLOCK(vp, 0, p);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	*vpp = vp;
 	return (0);
+bad:
+	VOP_UNLOCK(vp, 0, p);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
+	/* vn_close does vrele() for vp */
+	(void)vn_close(vp, FREAD|FWRITE, p->p_ucred, p);
+	return (error);
 }
 
 /*
diff --git a/sys/gnu/ext2fs/ext2_vfsops.c b/sys/gnu/ext2fs/ext2_vfsops.c
index 30b5d45..b85dbcc 100644
--- a/sys/gnu/ext2fs/ext2_vfsops.c
+++ b/sys/gnu/ext2fs/ext2_vfsops.c
@@ -61,6 +61,8 @@
 #include <ufs/ufs/inode.h>
 #include <ufs/ufs/ufs_extern.h>
 
+#include <vm/vm_zone.h>
+
 #include <gnu/ext2fs/fs.h>
 #include <gnu/ext2fs/ext2_extern.h>
 #include <gnu/ext2fs/ext2_fs.h>
@@ -259,6 +261,7 @@ ext2_mount(mp, path, data, ndp, p)
 	NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, args.fspec, p);
 	if ((error = namei(ndp)) != 0)
 		return (error);
+	NDFREE(ndp, NDF_ONLY_PNBUF);
 	devvp = ndp->ni_vp;
 
 	if (!vn_isdisk(devvp)) {
diff --git a/sys/gnu/ext2fs/ext2_vnops.c b/sys/gnu/ext2fs/ext2_vnops.c
index c1fcc83..d7b84ad 100644
--- a/sys/gnu/ext2fs/ext2_vnops.c
+++ b/sys/gnu/ext2fs/ext2_vnops.c
@@ -329,22 +329,18 @@ ext2_link(ap)
 		panic("ufs_link: no name");
 #endif
 	if (tdvp->v_mount != vp->v_mount) {
-		VOP_ABORTOP(tdvp, cnp);
 		error = EXDEV;
 		goto out2;
 	}
 	if (tdvp != vp && (error = vn_lock(vp, LK_EXCLUSIVE, p))) {
-		VOP_ABORTOP(tdvp, cnp);
 		goto out2;
 	}
 	ip = VTOI(vp);
 	if ((nlink_t)ip->i_nlink >= LINK_MAX) {
-		VOP_ABORTOP(tdvp, cnp);
 		error = EMLINK;
 		goto out1;
 	}
 	if (ip->i_flags & (IMMUTABLE | APPEND)) {
-		VOP_ABORTOP(tdvp, cnp);
 		error = EPERM;
 		goto out1;
 	}
@@ -357,7 +353,6 @@ ext2_link(ap)
 		ip->i_nlink--;
 		ip->i_flag |= IN_CHANGE;
 	}
-	zfree(namei_zone, cnp->cn_pnbuf);
 out1:
 	if (tdvp != vp)
 		VOP_UNLOCK(vp, 0, p);
@@ -405,14 +400,12 @@ ext2_rename(ap)
 	    (tvp && (fvp->v_mount != tvp->v_mount))) {
 		error = EXDEV;
 abortit:
-		VOP_ABORTOP(tdvp, tcnp); /* XXX, why not in NFS? */
 		if (tdvp == tvp)
 			vrele(tdvp);
 		else
 			vput(tdvp);
 		if (tvp)
 			vput(tvp);
-		VOP_ABORTOP(fdvp, fcnp); /* XXX, why not in NFS? */
 		vrele(fdvp);
 		vrele(fvp);
 		return (error);
@@ -446,7 +439,6 @@ abortit:
 		}
 
 		/* Release destination completely. */
-		VOP_ABORTOP(tdvp, tcnp);
 		vput(tdvp);
 		vput(tvp);
 
@@ -460,8 +452,6 @@ abortit:
 		vrele(fvp);
 		fcnp->cn_flags &= ~MODMASK;
 		fcnp->cn_flags |= LOCKPARENT | LOCKLEAF;
-		if ((fcnp->cn_flags & SAVESTART) == 0)
-			panic("ufs_rename: lost from startdir");
 		fcnp->cn_nameiop = DELETE;
 		VREF(fdvp);
 		error = relookup(fdvp, &fvp, fcnp);
@@ -558,8 +548,6 @@ abortit:
 		error = ext2_checkpath(ip, dp, tcnp->cn_cred);
 		if (error)
 			goto out;
-		if ((tcnp->cn_flags & SAVESTART) == 0)
-			panic("ufs_rename: lost to startdir");
 		VREF(tdvp);
 		error = relookup(tdvp, &tvp, tcnp);
 		if (error)
@@ -687,8 +675,6 @@ abortit:
 	 */
 	fcnp->cn_flags &= ~MODMASK;
 	fcnp->cn_flags |= LOCKPARENT | LOCKLEAF;
-	if ((fcnp->cn_flags & SAVESTART) == 0)
-		panic("ufs_rename: lost from startdir");
 	VREF(fdvp);
 	error = relookup(fdvp, &fvp, fcnp);
 	if (error == 0)
@@ -873,7 +859,6 @@ ext2_mkdir(ap)
 #ifdef QUOTA
 		if ((error = getinoquota(ip)) ||
 	    	(error = chkiq(ip, 1, ucp, 0))) {
-			zfree(namei_zone, cnp->cn_pnbuf);
 			UFS_VFREE(tvp, ip->i_number, dmode);
 			vput(tvp);
 			return (error);
@@ -885,7 +870,6 @@ ext2_mkdir(ap)
 #ifdef QUOTA
 	if ((error = getinoquota(ip)) ||
 	    (error = chkiq(ip, 1, cnp->cn_cred, 0))) {
-		zfree(namei_zone, cnp->cn_pnbuf);
 		UFS_VFREE(tvp, ip->i_number, dmode);
 		vput(tvp);
 		return (error);
@@ -956,7 +940,6 @@ bad:
 	} else
 		*ap->a_vpp = tvp;
 out:
-	zfree(namei_zone, cnp->cn_pnbuf);
 	return (error);
 #undef  DIRBLKSIZ
 #define DIRBLKSIZ  DEV_BSIZE
@@ -1093,7 +1076,6 @@ ext2_makeinode(mode, dvp, vpp, cnp)
 
 	error = UFS_VALLOC(dvp, mode, cnp->cn_cred, &tvp);
 	if (error) {
-		zfree(namei_zone, cnp->cn_pnbuf);
 		return (error);
 	}
 	ip = VTOI(tvp);
@@ -1138,7 +1120,6 @@ ext2_makeinode(mode, dvp, vpp, cnp)
 #ifdef QUOTA
 		if ((error = getinoquota(ip)) ||
 	    	(error = chkiq(ip, 1, ucp, 0))) {
-			zfree(namei_zone, cnp->cn_pnbuf);
 			UFS_VFREE(tvp, ip->i_number, mode);
 			vput(tvp);
 			return (error);
@@ -1150,7 +1131,6 @@ ext2_makeinode(mode, dvp, vpp, cnp)
 #ifdef QUOTA
 	if ((error = getinoquota(ip)) ||
 	    (error = chkiq(ip, 1, cnp->cn_cred, 0))) {
-		zfree(namei_zone, cnp->cn_pnbuf);
 		UFS_VFREE(tvp, ip->i_number, mode);
 		vput(tvp);
 		return (error);
@@ -1178,8 +1158,6 @@ ext2_makeinode(mode, dvp, vpp, cnp)
 	if (error)
 		goto bad;
 
-	if ((cnp->cn_flags & SAVESTART) == 0)
-		zfree(namei_zone, cnp->cn_pnbuf);
 	*vpp = tvp;
 	return (0);
 
@@ -1188,7 +1166,6 @@ bad:
 	 * Write error occurred trying to update the inode
 	 * or the directory so must deallocate the inode.
 	 */
-	zfree(namei_zone, cnp->cn_pnbuf);
 	ip->i_nlink = 0;
 	ip->i_flag |= IN_CHANGE;
 	vput(tvp);
diff --git a/sys/gnu/fs/ext2fs/ext2_vfsops.c b/sys/gnu/fs/ext2fs/ext2_vfsops.c
index 30b5d45..b85dbcc 100644
--- a/sys/gnu/fs/ext2fs/ext2_vfsops.c
+++ b/sys/gnu/fs/ext2fs/ext2_vfsops.c
@@ -61,6 +61,8 @@
 #include <ufs/ufs/inode.h>
 #include <ufs/ufs/ufs_extern.h>
 
+#include <vm/vm_zone.h>
+
 #include <gnu/ext2fs/fs.h>
 #include <gnu/ext2fs/ext2_extern.h>
 #include <gnu/ext2fs/ext2_fs.h>
@@ -259,6 +261,7 @@ ext2_mount(mp, path, data, ndp, p)
 	NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, args.fspec, p);
 	if ((error = namei(ndp)) != 0)
 		return (error);
+	NDFREE(ndp, NDF_ONLY_PNBUF);
 	devvp = ndp->ni_vp;
 
 	if (!vn_isdisk(devvp)) {
diff --git a/sys/gnu/fs/ext2fs/ext2_vnops.c b/sys/gnu/fs/ext2fs/ext2_vnops.c
index c1fcc83..d7b84ad 100644
--- a/sys/gnu/fs/ext2fs/ext2_vnops.c
+++ b/sys/gnu/fs/ext2fs/ext2_vnops.c
@@ -329,22 +329,18 @@ ext2_link(ap)
 		panic("ufs_link: no name");
 #endif
 	if (tdvp->v_mount != vp->v_mount) {
-		VOP_ABORTOP(tdvp, cnp);
 		error = EXDEV;
 		goto out2;
 	}
 	if (tdvp != vp && (error = vn_lock(vp, LK_EXCLUSIVE, p))) {
-		VOP_ABORTOP(tdvp, cnp);
 		goto out2;
 	}
 	ip = VTOI(vp);
 	if ((nlink_t)ip->i_nlink >= LINK_MAX) {
-		VOP_ABORTOP(tdvp, cnp);
 		error = EMLINK;
 		goto out1;
 	}
 	if (ip->i_flags & (IMMUTABLE | APPEND)) {
-		VOP_ABORTOP(tdvp, cnp);
 		error = EPERM;
 		goto out1;
 	}
@@ -357,7 +353,6 @@ ext2_link(ap)
 		ip->i_nlink--;
 		ip->i_flag |= IN_CHANGE;
 	}
-	zfree(namei_zone, cnp->cn_pnbuf);
 out1:
 	if (tdvp != vp)
 		VOP_UNLOCK(vp, 0, p);
@@ -405,14 +400,12 @@ ext2_rename(ap)
 	    (tvp && (fvp->v_mount != tvp->v_mount))) {
 		error = EXDEV;
 abortit:
-		VOP_ABORTOP(tdvp, tcnp); /* XXX, why not in NFS? */
 		if (tdvp == tvp)
 			vrele(tdvp);
 		else
 			vput(tdvp);
 		if (tvp)
 			vput(tvp);
-		VOP_ABORTOP(fdvp, fcnp); /* XXX, why not in NFS? */
 		vrele(fdvp);
 		vrele(fvp);
 		return (error);
@@ -446,7 +439,6 @@ abortit:
 		}
 
 		/* Release destination completely. */
-		VOP_ABORTOP(tdvp, tcnp);
 		vput(tdvp);
 		vput(tvp);
 
@@ -460,8 +452,6 @@ abortit:
 		vrele(fvp);
 		fcnp->cn_flags &= ~MODMASK;
 		fcnp->cn_flags |= LOCKPARENT | LOCKLEAF;
-		if ((fcnp->cn_flags & SAVESTART) == 0)
-			panic("ufs_rename: lost from startdir");
 		fcnp->cn_nameiop = DELETE;
 		VREF(fdvp);
 		error = relookup(fdvp, &fvp, fcnp);
@@ -558,8 +548,6 @@ abortit:
 		error = ext2_checkpath(ip, dp, tcnp->cn_cred);
 		if (error)
 			goto out;
-		if ((tcnp->cn_flags & SAVESTART) == 0)
-			panic("ufs_rename: lost to startdir");
 		VREF(tdvp);
 		error = relookup(tdvp, &tvp, tcnp);
 		if (error)
@@ -687,8 +675,6 @@ abortit:
 	 */
 	fcnp->cn_flags &= ~MODMASK;
 	fcnp->cn_flags |= LOCKPARENT | LOCKLEAF;
-	if ((fcnp->cn_flags & SAVESTART) == 0)
-		panic("ufs_rename: lost from startdir");
 	VREF(fdvp);
 	error = relookup(fdvp, &fvp, fcnp);
 	if (error == 0)
@@ -873,7 +859,6 @@ ext2_mkdir(ap)
 #ifdef QUOTA
 		if ((error = getinoquota(ip)) ||
 	    	(error = chkiq(ip, 1, ucp, 0))) {
-			zfree(namei_zone, cnp->cn_pnbuf);
 			UFS_VFREE(tvp, ip->i_number, dmode);
 			vput(tvp);
 			return (error);
@@ -885,7 +870,6 @@ ext2_mkdir(ap)
 #ifdef QUOTA
 	if ((error = getinoquota(ip)) ||
 	    (error = chkiq(ip, 1, cnp->cn_cred, 0))) {
-		zfree(namei_zone, cnp->cn_pnbuf);
 		UFS_VFREE(tvp, ip->i_number, dmode);
 		vput(tvp);
 		return (error);
@@ -956,7 +940,6 @@ bad:
 	} else
 		*ap->a_vpp = tvp;
 out:
-	zfree(namei_zone, cnp->cn_pnbuf);
 	return (error);
 #undef  DIRBLKSIZ
 #define DIRBLKSIZ  DEV_BSIZE
@@ -1093,7 +1076,6 @@ ext2_makeinode(mode, dvp, vpp, cnp)
 
 	error = UFS_VALLOC(dvp, mode, cnp->cn_cred, &tvp);
 	if (error) {
-		zfree(namei_zone, cnp->cn_pnbuf);
 		return (error);
 	}
 	ip = VTOI(tvp);
@@ -1138,7 +1120,6 @@ ext2_makeinode(mode, dvp, vpp, cnp)
 #ifdef QUOTA
 		if ((error = getinoquota(ip)) ||
 	    	(error = chkiq(ip, 1, ucp, 0))) {
-			zfree(namei_zone, cnp->cn_pnbuf);
 			UFS_VFREE(tvp, ip->i_number, mode);
 			vput(tvp);
 			return (error);
@@ -1150,7 +1131,6 @@ ext2_makeinode(mode, dvp, vpp, cnp)
 #ifdef QUOTA
 	if ((error = getinoquota(ip)) ||
 	    (error = chkiq(ip, 1, cnp->cn_cred, 0))) {
-		zfree(namei_zone, cnp->cn_pnbuf);
 		UFS_VFREE(tvp, ip->i_number, mode);
 		vput(tvp);
 		return (error);
@@ -1178,8 +1158,6 @@ ext2_makeinode(mode, dvp, vpp, cnp)
 	if (error)
 		goto bad;
 
-	if ((cnp->cn_flags & SAVESTART) == 0)
-		zfree(namei_zone, cnp->cn_pnbuf);
 	*vpp = tvp;
 	return (0);
 
@@ -1188,7 +1166,6 @@ bad:
 	 * Write error occurred trying to update the inode
 	 * or the directory so must deallocate the inode.
 	 */
-	zfree(namei_zone, cnp->cn_pnbuf);
 	ip->i_nlink = 0;
 	ip->i_flag |= IN_CHANGE;
 	vput(tvp);
diff --git a/sys/i386/ibcs2/ibcs2_stat.c b/sys/i386/ibcs2/ibcs2_stat.c
index 36990c3..863e6e0 100644
--- a/sys/i386/ibcs2/ibcs2_stat.c
+++ b/sys/i386/ibcs2/ibcs2_stat.c
@@ -24,6 +24,8 @@
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
  */
 
 #include <sys/param.h>
@@ -45,6 +47,8 @@
 #include <i386/ibcs2/ibcs2_util.h>
 #include <i386/ibcs2/ibcs2_utsname.h>
 
+#include <vm/vm_zone.h>
+
 static void bsd_stat2ibcs_stat __P((struct stat *, struct ibcs2_stat *));
 static int  cvt_statfs         __P((struct statfs *, caddr_t, int));
 
@@ -106,6 +110,7 @@ ibcs2_statfs(p, uap)
 	NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	mp = nd.ni_vp->v_mount;
 	sp = &mp->mnt_stat;
 	vrele(nd.ni_vp);
diff --git a/sys/i386/ibcs2/ibcs2_util.c b/sys/i386/ibcs2/ibcs2_util.c
index 2ae6f2d..e90b3d9 100644
--- a/sys/i386/ibcs2/ibcs2_util.c
+++ b/sys/i386/ibcs2/ibcs2_util.c
@@ -27,6 +27,7 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  *	from: svr4_util.c,v 1.5 1995/01/22 23:44:50 christos Exp
+ * $FreeBSD$
  */
 
 #include <sys/param.h>
@@ -37,6 +38,8 @@
 
 #include <i386/ibcs2/ibcs2_util.h>
 
+#include <vm/vm_zone.h>
+
 const char      ibcs2_emul_path[] = "/compat/ibcs2";
 
 /*
@@ -133,6 +136,7 @@ ibcs2_emul_find(p, sgp, prefix, path, pbuf, cflag)
 		if ((error = namei(&ndroot)) != 0) {
 			/* Cannot happen! */
 			free(buf, M_TEMP);
+			NDFREE(&nd, NDF_ONLY_PNBUF);
 			vrele(nd.ni_vp);
 			return error;
 		}
@@ -164,8 +168,11 @@ ibcs2_emul_find(p, sgp, prefix, path, pbuf, cflag)
 
 
 done:
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vrele(nd.ni_vp);
-	if (!cflag)
+	if (!cflag) {
+		NDFREE(&ndroot, NDF_ONLY_PNBUF);
 		vrele(ndroot.ni_vp);
+	}
 	return error;
 }
diff --git a/sys/i386/ibcs2/ibcs2_xenix.c b/sys/i386/ibcs2/ibcs2_xenix.c
index 67af2fc..bf77113 100644
--- a/sys/i386/ibcs2/ibcs2_xenix.c
+++ b/sys/i386/ibcs2/ibcs2_xenix.c
@@ -49,6 +49,8 @@
 #include <i386/ibcs2/ibcs2_xenix.h>
 #include <i386/ibcs2/ibcs2_xenix_syscall.h>
 
+#include <vm/vm_zone.h>
+
 extern struct sysent xenix_sysent[];
 
 int
@@ -218,6 +220,7 @@ xenix_eaccess(struct proc *p, struct xenix_eaccess_args *uap)
                 if ((flags & VWRITE) == 0 || (error = vn_writechk(vp)) == 0)
                         error = VOP_ACCESS(vp, flags, cred, p);
         }
+	NDFREE(&nd, NDF_ONLY_PNBUF);
         vput(vp);
         return error;
 }
diff --git a/sys/i386/ibcs2/imgact_coff.c b/sys/i386/ibcs2/imgact_coff.c
index 526ff66..1ada323 100644
--- a/sys/i386/ibcs2/imgact_coff.c
+++ b/sys/i386/ibcs2/imgact_coff.c
@@ -279,8 +279,8 @@ coff_load_file(struct proc *p, char *name)
  fail:
 	VOP_UNLOCK(vp, 0, p);
  unlocked_fail:
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vrele(nd.ni_vp);
-	zfree(namei_zone, nd.ni_cnd.cn_pnbuf);
   	return error;
 }
 
diff --git a/sys/i386/linux/linux_misc.c b/sys/i386/linux/linux_misc.c
index 36f1165..1835c9c 100644
--- a/sys/i386/linux/linux_misc.c
+++ b/sys/i386/linux/linux_misc.c
@@ -54,6 +54,7 @@
 #include <vm/vm_kern.h>
 #include <vm/vm_map.h>
 #include <vm/vm_extern.h>
+#include <vm/vm_zone.h>
 
 #include <machine/frame.h>
 #include <machine/psl.h>
@@ -194,10 +195,15 @@ linux_uselib(struct proc *p, struct linux_uselib_args *args)
 	goto cleanup;
 
     vp = ni.ni_vp;
+    /*
+     * XXX This looks like a bogus check - a LOCKLEAF namei should not succeed
+     * without returning a vnode.
+     */
     if (vp == NULL) {
 	error = ENOEXEC;	/* ?? */
 	goto cleanup;
     }
+    NDFREE(&ni, NDF_ONLY_PNBUF);
 
     /*
      * From here on down, we have a locked vnode that must be unlocked.
diff --git a/sys/i386/linux/linux_stats.c b/sys/i386/linux/linux_stats.c
index 14c8090..be40f15 100644
--- a/sys/i386/linux/linux_stats.c
+++ b/sys/i386/linux/linux_stats.c
@@ -44,6 +44,8 @@
 #include <i386/linux/linux_proto.h>
 #include <i386/linux/linux_util.h>
 
+#include <vm/vm_zone.h>
+
 struct linux_newstat {
 	u_short	stat_dev;
 	u_short	__pad1;
@@ -118,6 +120,7 @@ linux_newstat(struct proc *p, struct linux_newstat_args *args)
 	error = namei(&nd);
 	if (error)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 
 	error = vn_stat(nd.ni_vp, &buf, p);
 	vput(nd.ni_vp);
@@ -154,6 +157,7 @@ linux_newlstat(p, uap)
 	error = namei(&nd);
 	if (error)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF); 
 
 	vp = nd.ni_vp;
 	error = vn_stat(vp, &sb, p);
@@ -224,6 +228,7 @@ linux_statfs(struct proc *p, struct linux_statfs_args *args)
 	error = namei(ndp);
 	if (error)
 		return error;
+	NDFREE(ndp, NDF_ONLY_PNBUF);
 	mp = ndp->ni_vp->v_mount;
 	bsd_statfs = &mp->mnt_stat;
 	vrele(ndp->ni_vp);
diff --git a/sys/i386/linux/linux_util.c b/sys/i386/linux/linux_util.c
index 7c87174..0864ae7 100644
--- a/sys/i386/linux/linux_util.c
+++ b/sys/i386/linux/linux_util.c
@@ -39,6 +39,8 @@
 
 #include <i386/linux/linux_util.h>
 
+#include <vm/vm_zone.h>
+
 const char      linux_emul_path[] = "/compat/linux";
 
 /*
@@ -135,6 +137,7 @@ linux_emul_find(p, sgp, prefix, path, pbuf, cflag)
 		if ((error = namei(&ndroot)) != 0) {
 			/* Cannot happen! */
 			free(buf, M_TEMP);
+			NDFREE(&nd, NDF_ONLY_PNBUF);
 			vrele(nd.ni_vp);
 			return error;
 		}
@@ -164,13 +167,18 @@ linux_emul_find(p, sgp, prefix, path, pbuf, cflag)
 		free(buf, M_TEMP);
 	}
 
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vrele(nd.ni_vp);
-	if (!cflag)
+	if (!cflag) {
+		NDFREE(&ndroot, NDF_ONLY_PNBUF);
 		vrele(ndroot.ni_vp);
+	}
 	return error;
 
 bad:
+	NDFREE(&ndroot, NDF_ONLY_PNBUF);
 	vrele(ndroot.ni_vp);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vrele(nd.ni_vp);
 	free(buf, M_TEMP);
 	return error;
diff --git a/sys/isofs/cd9660/cd9660_vfsops.c b/sys/isofs/cd9660/cd9660_vfsops.c
index 8702879..3ecdb06 100644
--- a/sys/isofs/cd9660/cd9660_vfsops.c
+++ b/sys/isofs/cd9660/cd9660_vfsops.c
@@ -54,6 +54,8 @@
 #include <sys/stat.h>
 #include <sys/syslog.h>
 
+#include <vm/vm_zone.h>
+
 #include <isofs/cd9660/iso.h>
 #include <isofs/cd9660/iso_rrip.h>
 #include <isofs/cd9660/cd9660_node.h>
@@ -209,6 +211,7 @@ cd9660_mount(mp, path, data, ndp, p)
 	NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, args.fspec, p);
 	if ((error = namei(ndp)))
 		return (error);
+	NDFREE(ndp, NDF_ONLY_PNBUF);
 	devvp = ndp->ni_vp;
 
 	if (!vn_isdisk(devvp)) {
diff --git a/sys/isofs/cd9660/cd9660_vnops.c b/sys/isofs/cd9660/cd9660_vnops.c
index 2f93731..65ad938 100644
--- a/sys/isofs/cd9660/cd9660_vnops.c
+++ b/sys/isofs/cd9660/cd9660_vnops.c
@@ -73,7 +73,6 @@ static int iso_uiodir __P((struct isoreaddir *idp, struct dirent *dp,
 static int iso_shipdir __P((struct isoreaddir *idp));
 static int cd9660_readdir __P((struct vop_readdir_args *));
 static int cd9660_readlink __P((struct vop_readlink_args *ap));
-static int cd9660_abortop __P((struct vop_abortop_args *));
 static int cd9660_strategy __P((struct vop_strategy_args *));
 static int cd9660_print __P((struct vop_print_args *));
 static int cd9660_getpages __P((struct vop_getpages_args *));
@@ -737,22 +736,6 @@ cd9660_readlink(ap)
 }
 
 /*
- * Ufs abort op, called after namei() when a CREATE/DELETE isn't actually
- * done. If a buffer has been saved in anticipation of a CREATE, delete it.
- */
-static int
-cd9660_abortop(ap)
-	struct vop_abortop_args /* {
-		struct vnode *a_dvp;
-		struct componentname *a_cnp;
-	} */ *ap;
-{
-	if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
-		zfree(namei_zone, ap->a_cnp->cn_pnbuf);
-	return (0);
-}
-
-/*
  * Calculate the logical to physical mapping if not done already,
  * then call the device strategy routine.
  */
@@ -880,7 +863,6 @@ cd9660_putpages(ap)
 vop_t **cd9660_vnodeop_p;
 static struct vnodeopv_entry_desc cd9660_vnodeop_entries[] = {
 	{ &vop_default_desc,		(vop_t *) vop_defaultop },
-	{ &vop_abortop_desc,		(vop_t *) cd9660_abortop },
 	{ &vop_access_desc,		(vop_t *) cd9660_access },
 	{ &vop_bmap_desc,		(vop_t *) cd9660_bmap },
 	{ &vop_cachedlookup_desc,	(vop_t *) cd9660_lookup },
diff --git a/sys/kern/imgact_elf.c b/sys/kern/imgact_elf.c
index da938c5..c541147 100644
--- a/sys/kern/imgact_elf.c
+++ b/sys/kern/imgact_elf.c
@@ -60,6 +60,7 @@
 #include <vm/vm_map.h>
 #include <vm/vm_object.h>
 #include <vm/vm_extern.h>
+#include <vm/vm_zone.h>
 
 #include <machine/elf.h>
 #include <machine/md_var.h>
@@ -332,7 +333,7 @@ elf_load_file(struct proc *p, const char *file, u_long *addr, u_long *entry)
 		nd.ni_vp = NULL;
 		goto fail;
 	}
-
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	imgp->vp = nd.ni_vp;
 
 	/*
diff --git a/sys/kern/kern_acct.c b/sys/kern/kern_acct.c
index 3222b16..6f0cfb5 100644
--- a/sys/kern/kern_acct.c
+++ b/sys/kern/kern_acct.c
@@ -56,6 +56,8 @@
 #include <sys/resourcevar.h>
 #include <sys/tty.h>
 
+#include <vm/vm_zone.h>
+
 /*
  * The routines implemented in this file are described in:
  *      Leffler, et al.: The Design and Implementation of the 4.3BSD
@@ -133,6 +135,7 @@ acct(a1, uap)
 		error = vn_open(&nd, FWRITE, 0);
 		if (error)
 			return (error);
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 		VOP_UNLOCK(nd.ni_vp, 0, p);
 		if (nd.ni_vp->v_type != VREG) {
 			vn_close(nd.ni_vp, FWRITE, p->p_ucred, p);
diff --git a/sys/kern/kern_exec.c b/sys/kern/kern_exec.c
index d78f562..60c7f55 100644
--- a/sys/kern/kern_exec.c
+++ b/sys/kern/kern_exec.c
@@ -193,9 +193,9 @@ interpret:
 			goto exec_fail_dealloc;
 		if (imgp->interpreted) {
 			exec_unmap_first_page(imgp);
-			/* free old vnode and name buffer */
+			/* free name buffer and old vnode */
+			NDFREE(ndp, NDF_ONLY_PNBUF);
 			vrele(ndp->ni_vp);
-			zfree(namei_zone, ndp->ni_cnd.cn_pnbuf);
 			/* set new name to that of the interpreter */
 			NDINIT(ndp, LOOKUP, LOCKLEAF | FOLLOW | SAVENAME,
 			    UIO_SYSSPACE, imgp->interpreter_name, p);
@@ -353,8 +353,8 @@ exec_fail_dealloc:
 			ARG_MAX + PAGE_SIZE);
 
 	if (imgp->vp) {
+		NDFREE(ndp, NDF_ONLY_PNBUF);
 		vrele(imgp->vp);
-		zfree(namei_zone, ndp->ni_cnd.cn_pnbuf);
 	}
 
 	if (error == 0)
diff --git a/sys/kern/kern_ktrace.c b/sys/kern/kern_ktrace.c
index 266ea31..8258271 100644
--- a/sys/kern/kern_ktrace.c
+++ b/sys/kern/kern_ktrace.c
@@ -49,6 +49,8 @@
 #include <sys/malloc.h>
 #include <sys/syslog.h>
 
+#include <vm/vm_zone.h>
+
 #include <stddef.h>
 
 static MALLOC_DEFINE(M_KTRACE, "KTRACE", "KTRACE");
@@ -280,6 +282,7 @@ ktrace(curp, uap)
 			curp->p_traceflag &= ~KTRFAC_ACTIVE;
 			return (error);
 		}
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 		vp = nd.ni_vp;
 		VOP_UNLOCK(vp, 0, curp);
 		if (vp->v_type != VREG) {
diff --git a/sys/kern/kern_linker.c b/sys/kern/kern_linker.c
index 9262e54..13a2491 100644
--- a/sys/kern/kern_linker.c
+++ b/sys/kern/kern_linker.c
@@ -44,6 +44,8 @@
 #include <sys/vnode.h>
 #include <sys/sysctl.h>
 
+#include <vm/vm_zone.h>
+
 #ifdef KLD_DEBUG
 int kld_debug = 0;
 #endif
@@ -1017,6 +1019,7 @@ linker_search_path(const char *name)
 	NDINIT(&nd, LOOKUP, FOLLOW, UIO_SYSSPACE, result, p);
 	error = vn_open(&nd, FREAD, 0);
 	if (error == 0) {
+	    NDFREE(&nd, NDF_ONLY_PNBUF);
 	    type = nd.ni_vp->v_type;
 	    VOP_UNLOCK(nd.ni_vp, 0, p);
 	    vn_close(nd.ni_vp, FREAD, p->p_ucred, p);
diff --git a/sys/kern/kern_sig.c b/sys/kern/kern_sig.c
index cf27029..6bb03de 100644
--- a/sys/kern/kern_sig.c
+++ b/sys/kern/kern_sig.c
@@ -62,6 +62,8 @@
 #include <sys/sysctl.h>
 #include <sys/malloc.h>
 
+#include <vm/vm_zone.h>
+
 #include <machine/cpu.h>
 #ifdef SMP
 #include <machine/smp.h>
@@ -1604,6 +1606,7 @@ coredump(p)
 	free(name, M_TEMP);
 	if (error)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vp = nd.ni_vp;
 
 	/* Don't dump to non-regular files or files with links. */
diff --git a/sys/kern/link_aout.c b/sys/kern/link_aout.c
index bc46101..605a812 100644
--- a/sys/kern/link_aout.c
+++ b/sys/kern/link_aout.c
@@ -40,6 +40,8 @@
 #include <sys/vnode.h>
 #include <sys/linker.h>
 
+#include <vm/vm_zone.h>
+
 #ifndef __ELF__
 #include <vm/vm.h>
 #include <vm/pmap.h>
@@ -201,6 +203,7 @@ link_aout_load_file(const char* filename, linker_file_t* result)
     free(pathname, M_LINKER);
     if (error)
 	return error;
+    NDFREE(&nd, NDF_ONLY_PNBUF);
 
     /*
      * Read the a.out header from the file.
diff --git a/sys/kern/link_elf.c b/sys/kern/link_elf.c
index ab4abf8..0fefb50 100644
--- a/sys/kern/link_elf.c
+++ b/sys/kern/link_elf.c
@@ -38,9 +38,8 @@
 #include <machine/elf.h>
 
 #include <vm/vm.h>
-#ifdef SPARSE_MAPPING
-#endif
 #include <vm/vm_param.h>
+#include <vm/vm_zone.h>
 #include <sys/lock.h>
 #ifdef SPARSE_MAPPING
 #include <vm/vm_object.h>
@@ -430,6 +429,7 @@ link_elf_load_file(const char* filename, linker_file_t* result)
     free(pathname, M_LINKER);
     if (error)
 	return error;
+    NDFREE(&nd, NDF_ONLY_PNBUF);
 
     /*
      * Read the elf header from the file.
diff --git a/sys/kern/link_elf_obj.c b/sys/kern/link_elf_obj.c
index ab4abf8..0fefb50 100644
--- a/sys/kern/link_elf_obj.c
+++ b/sys/kern/link_elf_obj.c
@@ -38,9 +38,8 @@
 #include <machine/elf.h>
 
 #include <vm/vm.h>
-#ifdef SPARSE_MAPPING
-#endif
 #include <vm/vm_param.h>
+#include <vm/vm_zone.h>
 #include <sys/lock.h>
 #ifdef SPARSE_MAPPING
 #include <vm/vm_object.h>
@@ -430,6 +429,7 @@ link_elf_load_file(const char* filename, linker_file_t* result)
     free(pathname, M_LINKER);
     if (error)
 	return error;
+    NDFREE(&nd, NDF_ONLY_PNBUF);
 
     /*
      * Read the elf header from the file.
diff --git a/sys/kern/uipc_usrreq.c b/sys/kern/uipc_usrreq.c
index 34222b2..4876889 100644
--- a/sys/kern/uipc_usrreq.c
+++ b/sys/kern/uipc_usrreq.c
@@ -559,7 +559,7 @@ unp_bind(unp, nam, p)
 		return (error);
 	vp = nd.ni_vp;
 	if (vp != NULL) {
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 		if (nd.ni_dvp == vp)
 			vrele(nd.ni_dvp);
 		else
@@ -572,6 +572,7 @@ unp_bind(unp, nam, p)
 	vattr.va_mode = (ACCESSPERMS & ~p->p_fd->fd_cmask);
 	VOP_LEASE(nd.ni_dvp, p, p->p_ucred, LEASE_WRITE);
 	error = VOP_CREATE(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &vattr);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vput(nd.ni_dvp);
 	if (error)
 		return (error);
@@ -608,6 +609,7 @@ unp_connect(so, nam, p)
 	if (error)
 		return (error);
 	vp = nd.ni_vp;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (vp->v_type != VSOCK) {
 		error = ENOTSOCK;
 		goto bad;
diff --git a/sys/kern/vfs_default.c b/sys/kern/vfs_default.c
index 600df41..35df911 100644
--- a/sys/kern/vfs_default.c
+++ b/sys/kern/vfs_default.c
@@ -63,7 +63,6 @@ static int vop_nostrategy __P((struct vop_strategy_args *));
 vop_t **default_vnodeop_p;
 static struct vnodeopv_entry_desc default_vnodeop_entries[] = {
 	{ &vop_default_desc,		(vop_t *) vop_eopnotsupp },
-	{ &vop_abortop_desc,		(vop_t *) vop_null },
 	{ &vop_advlock_desc,		(vop_t *) vop_einval },
 	{ &vop_bwrite_desc,		(vop_t *) vop_stdbwrite },
 	{ &vop_close_desc,		(vop_t *) vop_null },
diff --git a/sys/kern/vfs_extattr.c b/sys/kern/vfs_extattr.c
index 4d5d394..1de7cf1 100644
--- a/sys/kern/vfs_extattr.c
+++ b/sys/kern/vfs_extattr.c
@@ -142,6 +142,7 @@ mount(p, uap)
 	    SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vp = nd.ni_vp;
 	if (SCARG(uap, flags) & MNT_UPDATE) {
 		if ((vp->v_flag & VROOT) == 0) {
@@ -264,8 +265,7 @@ mount(p, uap)
 	/*
 	 * Allocate and initialize the filesystem.
 	 */
-	mp = (struct mount *)malloc((u_long)sizeof(struct mount),
-		M_MOUNT, M_WAITOK);
+	mp = malloc(sizeof(struct mount), M_MOUNT, M_WAITOK);
 	bzero((char *)mp, (u_long)sizeof(struct mount));
 	lockinit(&mp->mnt_lock, PVFS, "vfslock", 0, LK_NOPAUSE);
 	(void)vfs_busy(mp, LK_NOWAIT, 0, p);
@@ -297,6 +297,8 @@ update:
 	    MNT_NOATIME | MNT_NOCLUSTERR | MNT_NOCLUSTERW | MNT_SUIDDIR);
 	/*
 	 * Mount the filesystem.
+	 * XXX The final recipients of VFS_MOUNT just overwrite the ndp they
+	 * get.  No freeing of cn_pnbuf.
 	 */
 	error = VFS_MOUNT(mp, SCARG(uap, path), SCARG(uap, data), &nd, p);
 	if (mp->mnt_flag & MNT_UPDATE) {
@@ -421,6 +423,7 @@ unmount(p, uap)
 	if ((error = namei(&nd)) != 0)
 		return (error);
 	vp = nd.ni_vp;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	mp = vp->v_mount;
 
 	/*
@@ -602,6 +605,7 @@ quotactl(p, uap)
 	if ((error = namei(&nd)) != 0)
 		return (error);
 	mp = nd.ni_vp->v_mount;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vrele(nd.ni_vp);
 	return (VFS_QUOTACTL(mp, SCARG(uap, cmd), SCARG(uap, uid),
 	    SCARG(uap, arg), p));
@@ -636,6 +640,7 @@ statfs(p, uap)
 		return (error);
 	mp = nd.ni_vp->v_mount;
 	sp = &mp->mnt_stat;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vrele(nd.ni_vp);
 	error = VFS_STATFS(mp, sp, p);
 	if (error)
@@ -833,6 +838,7 @@ chdir(p, uap)
 	    SCARG(uap, path), p);
 	if ((error = change_dir(&nd, p)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vrele(fdp->fd_cdir);
 	fdp->fd_cdir = nd.ni_vp;
 	return (0);
@@ -908,6 +914,7 @@ chroot(p, uap)
 	    SCARG(uap, path), p);
 	if ((error = change_dir(&nd, p)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vrele(fdp->fd_rdir);
 	fdp->fd_rdir = nd.ni_vp;
 	if (!fdp->fd_jdir) {
@@ -999,6 +1006,7 @@ open(p, uap)
 		return (error);
 	}
 	p->p_dupfd = 0;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vp = nd.ni_vp;
 
 	fp->f_data = (caddr_t)vp;
@@ -1134,20 +1142,18 @@ mknod(p, uap)
 	}
 	if (!error) {
 		VOP_LEASE(nd.ni_dvp, p, p->p_ucred, LEASE_WRITE);
-		if (whiteout) {
+		if (whiteout)
 			error = VOP_WHITEOUT(nd.ni_dvp, &nd.ni_cnd, CREATE);
-			if (error)
-				VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
-			vput(nd.ni_dvp);
-		} else {
+		else {
 			error = VOP_MKNOD(nd.ni_dvp, &nd.ni_vp,
 						&nd.ni_cnd, &vattr);
 			if (error == 0)
 				vput(nd.ni_vp);
-			vput(nd.ni_dvp);
 		}
+		NDFREE(&nd, NDF_ONLY_PNBUF);
+		vput(nd.ni_dvp);
 	} else {
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 		if (nd.ni_dvp == vp)
 			vrele(nd.ni_dvp);
 		else
@@ -1186,7 +1192,7 @@ mkfifo(p, uap)
 	if ((error = namei(&nd)) != 0)
 		return (error);
 	if (nd.ni_vp != NULL) {
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 		if (nd.ni_dvp == nd.ni_vp)
 			vrele(nd.ni_dvp);
 		else
@@ -1201,6 +1207,7 @@ mkfifo(p, uap)
 	error = VOP_MKNOD(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &vattr);
 	if (error == 0)
 		vput(nd.ni_vp);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vput(nd.ni_dvp);
 	return (error);
 }
@@ -1230,6 +1237,7 @@ link(p, uap)
 	NDINIT(&nd, LOOKUP, FOLLOW|NOOBJ, UIO_USERSPACE, SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vp = nd.ni_vp;
 	if (vp->v_type == VDIR)
 		error = EPERM;		/* POSIX */
@@ -1238,7 +1246,6 @@ link(p, uap)
 		error = namei(&nd);
 		if (!error) {
 			if (nd.ni_vp != NULL) {
-				VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
 				if (nd.ni_vp)
 					vrele(nd.ni_vp);
 				error = EEXIST;
@@ -1248,6 +1255,7 @@ link(p, uap)
 				VOP_LEASE(vp, p, p->p_ucred, LEASE_WRITE);
 				error = VOP_LINK(nd.ni_dvp, vp, &nd.ni_cnd);
 			}
+			NDFREE(&nd, NDF_ONLY_PNBUF);
 			if (nd.ni_dvp == nd.ni_vp)
 				vrele(nd.ni_dvp);
 			else
@@ -1290,7 +1298,7 @@ symlink(p, uap)
 	if ((error = namei(&nd)) != 0)
 		goto out;
 	if (nd.ni_vp) {
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 		if (nd.ni_dvp == nd.ni_vp)
 			vrele(nd.ni_dvp);
 		else
@@ -1303,6 +1311,7 @@ symlink(p, uap)
 	vattr.va_mode = ACCESSPERMS &~ p->p_fd->fd_cmask;
 	VOP_LEASE(nd.ni_dvp, p, p->p_ucred, LEASE_WRITE);
 	error = VOP_SYMLINK(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &vattr, path);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (error == 0)
 		vput(nd.ni_vp);
 	vput(nd.ni_dvp);
@@ -1334,7 +1343,7 @@ undelete(p, uap)
 		return (error);
 
 	if (nd.ni_vp != NULLVP || !(nd.ni_cnd.cn_flags & ISWHITEOUT)) {
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 		if (nd.ni_dvp == nd.ni_vp)
 			vrele(nd.ni_dvp);
 		else
@@ -1345,8 +1354,8 @@ undelete(p, uap)
 	}
 
 	VOP_LEASE(nd.ni_dvp, p, p->p_ucred, LEASE_WRITE);
-	if ((error = VOP_WHITEOUT(nd.ni_dvp, &nd.ni_cnd, DELETE)) != 0)
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
+	error = VOP_WHITEOUT(nd.ni_dvp, &nd.ni_cnd, DELETE);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vput(nd.ni_dvp);
 	ASSERT_VOP_UNLOCKED(nd.ni_dvp, "undelete");
 	ASSERT_VOP_UNLOCKED(nd.ni_vp, "undelete");
@@ -1395,9 +1404,8 @@ unlink(p, uap)
 	if (!error) {
 		VOP_LEASE(nd.ni_dvp, p, p->p_ucred, LEASE_WRITE);
 		error = VOP_REMOVE(nd.ni_dvp, vp, &nd.ni_cnd);
-	} else {
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
 	}
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (nd.ni_dvp == vp)
 		vrele(nd.ni_dvp);
 	else
@@ -1541,6 +1549,7 @@ access(p, uap)
 		if ((flags & VWRITE) == 0 || (error = vn_writechk(vp)) == 0)
 			error = VOP_ACCESS(vp, flags, cred, p);
 	}
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vput(vp);
 out1:
 	cred->cr_uid = t_uid;
@@ -1576,6 +1585,7 @@ ostat(p, uap)
 	    SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = vn_stat(nd.ni_vp, &sb, p);
 	vput(nd.ni_vp);
 	if (error)
@@ -1615,6 +1625,7 @@ olstat(p, uap)
 		return (error);
 	vp = nd.ni_vp;
 	error = vn_stat(vp, &sb, p);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vput(vp);
 	if (error)
 		return (error);
@@ -1680,6 +1691,7 @@ stat(p, uap)
 	if ((error = namei(&nd)) != 0)
 		return (error);
 	error = vn_stat(nd.ni_vp, &sb, p);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vput(nd.ni_vp);
 	if (error)
 		return (error);
@@ -1716,6 +1728,7 @@ lstat(p, uap)
 		return (error);
 	vp = nd.ni_vp;
 	error = vn_stat(vp, &sb, p);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vput(vp);
 	if (error)
 		return (error);
@@ -1771,6 +1784,7 @@ nstat(p, uap)
 	    SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = vn_stat(nd.ni_vp, &sb, p);
 	vput(nd.ni_vp);
 	if (error)
@@ -1809,6 +1823,7 @@ nlstat(p, uap)
 	if ((error = namei(&nd)) != 0)
 		return (error);
 	vp = nd.ni_vp;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = vn_stat(vp, &sb, p);
 	vput(vp);
 	if (error)
@@ -1843,6 +1858,7 @@ pathconf(p, uap)
 	    SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = VOP_PATHCONF(nd.ni_vp, SCARG(uap, name), p->p_retval);
 	vput(nd.ni_vp);
 	return (error);
@@ -1878,6 +1894,7 @@ readlink(p, uap)
 	    SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vp = nd.ni_vp;
 	if (vp->v_type != VLNK)
 		error = EINVAL;
@@ -1950,6 +1967,7 @@ chflags(p, uap)
 	NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = setfflags(p, nd.ni_vp, SCARG(uap, flags));
 	vrele(nd.ni_vp);
 	return error;
@@ -2023,6 +2041,7 @@ chmod(p, uap)
 	NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = setfmode(p, nd.ni_vp, SCARG(uap, mode));
 	vrele(nd.ni_vp);
 	return error;
@@ -2052,6 +2071,7 @@ lchmod(p, uap)
 	NDINIT(&nd, LOOKUP, NOFOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = setfmode(p, nd.ni_vp, SCARG(uap, mode));
 	vrele(nd.ni_vp);
 	return error;
@@ -2129,9 +2149,9 @@ chown(p, uap)
 	NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = setfown(p, nd.ni_vp, SCARG(uap, uid), SCARG(uap, gid));
 	vrele(nd.ni_vp);
-
 	return (error);
 }
 
@@ -2161,6 +2181,7 @@ lchown(p, uap)
 	NDINIT(&nd, LOOKUP, NOFOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = setfown(p, nd.ni_vp, SCARG(uap, uid), SCARG(uap, gid));
 	vrele(nd.ni_vp);
 	return (error);
@@ -2267,6 +2288,7 @@ utimes(p, uap)
 	NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = setutimes(p, nd.ni_vp, ts, usrtvp == NULL);
 	vrele(nd.ni_vp);
 	return (error);
@@ -2301,6 +2323,7 @@ lutimes(p, uap)
 	NDINIT(&nd, LOOKUP, NOFOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = setutimes(p, nd.ni_vp, ts, usrtvp == NULL);
 	vrele(nd.ni_vp);
 	return (error);
@@ -2368,6 +2391,7 @@ truncate(p, uap)
 	if ((error = namei(&nd)) != 0)
 		return (error);
 	vp = nd.ni_vp;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	VOP_LEASE(vp, p, p->p_ucred, LEASE_WRITE);
 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
 	if (vp->v_type == VDIR)
@@ -2557,7 +2581,7 @@ rename(p, uap)
 		/* Translate error code for rename("dir1", "dir2/."). */
 		if (error == EISDIR && fvp->v_type == VDIR)
 			error = EINVAL;
-		VOP_ABORTOP(fromnd.ni_dvp, &fromnd.ni_cnd);
+		NDFREE(&fromnd, NDF_ONLY_PNBUF);
 		vrele(fromnd.ni_dvp);
 		vrele(fvp);
 		goto out1;
@@ -2596,15 +2620,17 @@ out:
 		}
 		error = VOP_RENAME(fromnd.ni_dvp, fromnd.ni_vp, &fromnd.ni_cnd,
 				   tond.ni_dvp, tond.ni_vp, &tond.ni_cnd);
+		NDFREE(&fromnd, NDF_ONLY_PNBUF);
+		NDFREE(&tond, NDF_ONLY_PNBUF);
 	} else {
-		VOP_ABORTOP(tond.ni_dvp, &tond.ni_cnd);
+		NDFREE(&fromnd, NDF_ONLY_PNBUF);
+		NDFREE(&tond, NDF_ONLY_PNBUF);
 		if (tdvp == tvp)
 			vrele(tdvp);
 		else
 			vput(tdvp);
 		if (tvp)
 			vput(tvp);
-		VOP_ABORTOP(fromnd.ni_dvp, &fromnd.ni_cnd);
 		vrele(fromnd.ni_dvp);
 		vrele(fvp);
 	}
@@ -2613,11 +2639,9 @@ out:
 	ASSERT_VOP_UNLOCKED(fromnd.ni_vp, "rename");
 	ASSERT_VOP_UNLOCKED(tond.ni_dvp, "rename");
 	ASSERT_VOP_UNLOCKED(tond.ni_vp, "rename");
-	zfree(namei_zone, tond.ni_cnd.cn_pnbuf);
 out1:
 	if (fromnd.ni_startdir)
 		vrele(fromnd.ni_startdir);
-	zfree(namei_zone, fromnd.ni_cnd.cn_pnbuf);
 	if (error == -1)
 		return (0);
 	return (error);
@@ -2652,7 +2676,7 @@ mkdir(p, uap)
 		return (error);
 	vp = nd.ni_vp;
 	if (vp != NULL) {
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 		if (nd.ni_dvp == vp)
 			vrele(nd.ni_dvp);
 		else
@@ -2665,6 +2689,7 @@ mkdir(p, uap)
 	vattr.va_mode = (SCARG(uap, mode) & ACCESSPERMS) &~ p->p_fd->fd_cmask;
 	VOP_LEASE(nd.ni_dvp, p, p->p_ucred, LEASE_WRITE);
 	error = VOP_MKDIR(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &vattr);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vput(nd.ni_dvp);
 	if (!error)
 		vput(nd.ni_vp);
@@ -2714,14 +2739,13 @@ rmdir(p, uap)
 	 */
 	if (vp->v_flag & VROOT)
 		error = EBUSY;
-out:
-	if (!error) {
+	else {
 		VOP_LEASE(nd.ni_dvp, p, p->p_ucred, LEASE_WRITE);
 		VOP_LEASE(vp, p, p->p_ucred, LEASE_WRITE);
 		error = VOP_RMDIR(nd.ni_dvp, nd.ni_vp, &nd.ni_cnd);
-	} else {
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
 	}
+out:
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (nd.ni_dvp == vp)
 		vrele(nd.ni_dvp);
 	else
@@ -3013,6 +3037,7 @@ revoke(p, uap)
 	if ((error = namei(&nd)) != 0)
 		return (error);
 	vp = nd.ni_vp;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (vp->v_type != VCHR && vp->v_type != VBLK) {
 		error = EINVAL;
 		goto out;
@@ -3077,6 +3102,7 @@ getfh(p, uap)
 	error = namei(&nd);
 	if (error)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vp = nd.ni_vp;
 	bzero(&fh, sizeof(fh));
 	fh.fh_fsid = vp->v_mount->mnt_stat.f_fsid;
diff --git a/sys/kern/vfs_lookup.c b/sys/kern/vfs_lookup.c
index 18e0bda..4cdec9e 100644
--- a/sys/kern/vfs_lookup.c
+++ b/sys/kern/vfs_lookup.c
@@ -372,6 +372,7 @@ dirloop:
 		ndp->ni_vp = dp;
 		if (!(cnp->cn_flags & (LOCKPARENT | LOCKLEAF)))
 			VOP_UNLOCK(dp, 0, p);
+		/* XXX This should probably move to the top of function. */
 		if (cnp->cn_flags & SAVESTART)
 			panic("lookup: SAVESTART");
 		return (0);
@@ -527,9 +528,8 @@ nextname:
 			cnp->cn_nameptr++;
 			ndp->ni_pathlen--;
 		}
-		if (ndp->ni_dvp != ndp->ni_vp) {
-		    ASSERT_VOP_UNLOCKED(ndp->ni_dvp, "lookup");
-		}
+		if (ndp->ni_dvp != ndp->ni_vp)
+			ASSERT_VOP_UNLOCKED(ndp->ni_dvp, "lookup");
 		vrele(ndp->ni_dvp);
 		goto dirloop;
 	}
@@ -629,6 +629,7 @@ relookup(dvp, vpp, cnp)
 		if (!(cnp->cn_flags & LOCKLEAF))
 			VOP_UNLOCK(dp, 0, p);
 		*vpp = dp;
+		/* XXX This should probably move to the top of function. */
 		if (cnp->cn_flags & SAVESTART)
 			panic("lookup: SAVESTART");
 		return (0);
diff --git a/sys/kern/vfs_syscalls.c b/sys/kern/vfs_syscalls.c
index 4d5d394..1de7cf1 100644
--- a/sys/kern/vfs_syscalls.c
+++ b/sys/kern/vfs_syscalls.c
@@ -142,6 +142,7 @@ mount(p, uap)
 	    SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vp = nd.ni_vp;
 	if (SCARG(uap, flags) & MNT_UPDATE) {
 		if ((vp->v_flag & VROOT) == 0) {
@@ -264,8 +265,7 @@ mount(p, uap)
 	/*
 	 * Allocate and initialize the filesystem.
 	 */
-	mp = (struct mount *)malloc((u_long)sizeof(struct mount),
-		M_MOUNT, M_WAITOK);
+	mp = malloc(sizeof(struct mount), M_MOUNT, M_WAITOK);
 	bzero((char *)mp, (u_long)sizeof(struct mount));
 	lockinit(&mp->mnt_lock, PVFS, "vfslock", 0, LK_NOPAUSE);
 	(void)vfs_busy(mp, LK_NOWAIT, 0, p);
@@ -297,6 +297,8 @@ update:
 	    MNT_NOATIME | MNT_NOCLUSTERR | MNT_NOCLUSTERW | MNT_SUIDDIR);
 	/*
 	 * Mount the filesystem.
+	 * XXX The final recipients of VFS_MOUNT just overwrite the ndp they
+	 * get.  No freeing of cn_pnbuf.
 	 */
 	error = VFS_MOUNT(mp, SCARG(uap, path), SCARG(uap, data), &nd, p);
 	if (mp->mnt_flag & MNT_UPDATE) {
@@ -421,6 +423,7 @@ unmount(p, uap)
 	if ((error = namei(&nd)) != 0)
 		return (error);
 	vp = nd.ni_vp;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	mp = vp->v_mount;
 
 	/*
@@ -602,6 +605,7 @@ quotactl(p, uap)
 	if ((error = namei(&nd)) != 0)
 		return (error);
 	mp = nd.ni_vp->v_mount;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vrele(nd.ni_vp);
 	return (VFS_QUOTACTL(mp, SCARG(uap, cmd), SCARG(uap, uid),
 	    SCARG(uap, arg), p));
@@ -636,6 +640,7 @@ statfs(p, uap)
 		return (error);
 	mp = nd.ni_vp->v_mount;
 	sp = &mp->mnt_stat;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vrele(nd.ni_vp);
 	error = VFS_STATFS(mp, sp, p);
 	if (error)
@@ -833,6 +838,7 @@ chdir(p, uap)
 	    SCARG(uap, path), p);
 	if ((error = change_dir(&nd, p)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vrele(fdp->fd_cdir);
 	fdp->fd_cdir = nd.ni_vp;
 	return (0);
@@ -908,6 +914,7 @@ chroot(p, uap)
 	    SCARG(uap, path), p);
 	if ((error = change_dir(&nd, p)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vrele(fdp->fd_rdir);
 	fdp->fd_rdir = nd.ni_vp;
 	if (!fdp->fd_jdir) {
@@ -999,6 +1006,7 @@ open(p, uap)
 		return (error);
 	}
 	p->p_dupfd = 0;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vp = nd.ni_vp;
 
 	fp->f_data = (caddr_t)vp;
@@ -1134,20 +1142,18 @@ mknod(p, uap)
 	}
 	if (!error) {
 		VOP_LEASE(nd.ni_dvp, p, p->p_ucred, LEASE_WRITE);
-		if (whiteout) {
+		if (whiteout)
 			error = VOP_WHITEOUT(nd.ni_dvp, &nd.ni_cnd, CREATE);
-			if (error)
-				VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
-			vput(nd.ni_dvp);
-		} else {
+		else {
 			error = VOP_MKNOD(nd.ni_dvp, &nd.ni_vp,
 						&nd.ni_cnd, &vattr);
 			if (error == 0)
 				vput(nd.ni_vp);
-			vput(nd.ni_dvp);
 		}
+		NDFREE(&nd, NDF_ONLY_PNBUF);
+		vput(nd.ni_dvp);
 	} else {
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 		if (nd.ni_dvp == vp)
 			vrele(nd.ni_dvp);
 		else
@@ -1186,7 +1192,7 @@ mkfifo(p, uap)
 	if ((error = namei(&nd)) != 0)
 		return (error);
 	if (nd.ni_vp != NULL) {
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 		if (nd.ni_dvp == nd.ni_vp)
 			vrele(nd.ni_dvp);
 		else
@@ -1201,6 +1207,7 @@ mkfifo(p, uap)
 	error = VOP_MKNOD(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &vattr);
 	if (error == 0)
 		vput(nd.ni_vp);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vput(nd.ni_dvp);
 	return (error);
 }
@@ -1230,6 +1237,7 @@ link(p, uap)
 	NDINIT(&nd, LOOKUP, FOLLOW|NOOBJ, UIO_USERSPACE, SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vp = nd.ni_vp;
 	if (vp->v_type == VDIR)
 		error = EPERM;		/* POSIX */
@@ -1238,7 +1246,6 @@ link(p, uap)
 		error = namei(&nd);
 		if (!error) {
 			if (nd.ni_vp != NULL) {
-				VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
 				if (nd.ni_vp)
 					vrele(nd.ni_vp);
 				error = EEXIST;
@@ -1248,6 +1255,7 @@ link(p, uap)
 				VOP_LEASE(vp, p, p->p_ucred, LEASE_WRITE);
 				error = VOP_LINK(nd.ni_dvp, vp, &nd.ni_cnd);
 			}
+			NDFREE(&nd, NDF_ONLY_PNBUF);
 			if (nd.ni_dvp == nd.ni_vp)
 				vrele(nd.ni_dvp);
 			else
@@ -1290,7 +1298,7 @@ symlink(p, uap)
 	if ((error = namei(&nd)) != 0)
 		goto out;
 	if (nd.ni_vp) {
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 		if (nd.ni_dvp == nd.ni_vp)
 			vrele(nd.ni_dvp);
 		else
@@ -1303,6 +1311,7 @@ symlink(p, uap)
 	vattr.va_mode = ACCESSPERMS &~ p->p_fd->fd_cmask;
 	VOP_LEASE(nd.ni_dvp, p, p->p_ucred, LEASE_WRITE);
 	error = VOP_SYMLINK(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &vattr, path);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (error == 0)
 		vput(nd.ni_vp);
 	vput(nd.ni_dvp);
@@ -1334,7 +1343,7 @@ undelete(p, uap)
 		return (error);
 
 	if (nd.ni_vp != NULLVP || !(nd.ni_cnd.cn_flags & ISWHITEOUT)) {
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 		if (nd.ni_dvp == nd.ni_vp)
 			vrele(nd.ni_dvp);
 		else
@@ -1345,8 +1354,8 @@ undelete(p, uap)
 	}
 
 	VOP_LEASE(nd.ni_dvp, p, p->p_ucred, LEASE_WRITE);
-	if ((error = VOP_WHITEOUT(nd.ni_dvp, &nd.ni_cnd, DELETE)) != 0)
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
+	error = VOP_WHITEOUT(nd.ni_dvp, &nd.ni_cnd, DELETE);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vput(nd.ni_dvp);
 	ASSERT_VOP_UNLOCKED(nd.ni_dvp, "undelete");
 	ASSERT_VOP_UNLOCKED(nd.ni_vp, "undelete");
@@ -1395,9 +1404,8 @@ unlink(p, uap)
 	if (!error) {
 		VOP_LEASE(nd.ni_dvp, p, p->p_ucred, LEASE_WRITE);
 		error = VOP_REMOVE(nd.ni_dvp, vp, &nd.ni_cnd);
-	} else {
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
 	}
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (nd.ni_dvp == vp)
 		vrele(nd.ni_dvp);
 	else
@@ -1541,6 +1549,7 @@ access(p, uap)
 		if ((flags & VWRITE) == 0 || (error = vn_writechk(vp)) == 0)
 			error = VOP_ACCESS(vp, flags, cred, p);
 	}
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vput(vp);
 out1:
 	cred->cr_uid = t_uid;
@@ -1576,6 +1585,7 @@ ostat(p, uap)
 	    SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = vn_stat(nd.ni_vp, &sb, p);
 	vput(nd.ni_vp);
 	if (error)
@@ -1615,6 +1625,7 @@ olstat(p, uap)
 		return (error);
 	vp = nd.ni_vp;
 	error = vn_stat(vp, &sb, p);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vput(vp);
 	if (error)
 		return (error);
@@ -1680,6 +1691,7 @@ stat(p, uap)
 	if ((error = namei(&nd)) != 0)
 		return (error);
 	error = vn_stat(nd.ni_vp, &sb, p);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vput(nd.ni_vp);
 	if (error)
 		return (error);
@@ -1716,6 +1728,7 @@ lstat(p, uap)
 		return (error);
 	vp = nd.ni_vp;
 	error = vn_stat(vp, &sb, p);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vput(vp);
 	if (error)
 		return (error);
@@ -1771,6 +1784,7 @@ nstat(p, uap)
 	    SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = vn_stat(nd.ni_vp, &sb, p);
 	vput(nd.ni_vp);
 	if (error)
@@ -1809,6 +1823,7 @@ nlstat(p, uap)
 	if ((error = namei(&nd)) != 0)
 		return (error);
 	vp = nd.ni_vp;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = vn_stat(vp, &sb, p);
 	vput(vp);
 	if (error)
@@ -1843,6 +1858,7 @@ pathconf(p, uap)
 	    SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = VOP_PATHCONF(nd.ni_vp, SCARG(uap, name), p->p_retval);
 	vput(nd.ni_vp);
 	return (error);
@@ -1878,6 +1894,7 @@ readlink(p, uap)
 	    SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vp = nd.ni_vp;
 	if (vp->v_type != VLNK)
 		error = EINVAL;
@@ -1950,6 +1967,7 @@ chflags(p, uap)
 	NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = setfflags(p, nd.ni_vp, SCARG(uap, flags));
 	vrele(nd.ni_vp);
 	return error;
@@ -2023,6 +2041,7 @@ chmod(p, uap)
 	NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = setfmode(p, nd.ni_vp, SCARG(uap, mode));
 	vrele(nd.ni_vp);
 	return error;
@@ -2052,6 +2071,7 @@ lchmod(p, uap)
 	NDINIT(&nd, LOOKUP, NOFOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = setfmode(p, nd.ni_vp, SCARG(uap, mode));
 	vrele(nd.ni_vp);
 	return error;
@@ -2129,9 +2149,9 @@ chown(p, uap)
 	NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = setfown(p, nd.ni_vp, SCARG(uap, uid), SCARG(uap, gid));
 	vrele(nd.ni_vp);
-
 	return (error);
 }
 
@@ -2161,6 +2181,7 @@ lchown(p, uap)
 	NDINIT(&nd, LOOKUP, NOFOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = setfown(p, nd.ni_vp, SCARG(uap, uid), SCARG(uap, gid));
 	vrele(nd.ni_vp);
 	return (error);
@@ -2267,6 +2288,7 @@ utimes(p, uap)
 	NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = setutimes(p, nd.ni_vp, ts, usrtvp == NULL);
 	vrele(nd.ni_vp);
 	return (error);
@@ -2301,6 +2323,7 @@ lutimes(p, uap)
 	NDINIT(&nd, LOOKUP, NOFOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
 	if ((error = namei(&nd)) != 0)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	error = setutimes(p, nd.ni_vp, ts, usrtvp == NULL);
 	vrele(nd.ni_vp);
 	return (error);
@@ -2368,6 +2391,7 @@ truncate(p, uap)
 	if ((error = namei(&nd)) != 0)
 		return (error);
 	vp = nd.ni_vp;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	VOP_LEASE(vp, p, p->p_ucred, LEASE_WRITE);
 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
 	if (vp->v_type == VDIR)
@@ -2557,7 +2581,7 @@ rename(p, uap)
 		/* Translate error code for rename("dir1", "dir2/."). */
 		if (error == EISDIR && fvp->v_type == VDIR)
 			error = EINVAL;
-		VOP_ABORTOP(fromnd.ni_dvp, &fromnd.ni_cnd);
+		NDFREE(&fromnd, NDF_ONLY_PNBUF);
 		vrele(fromnd.ni_dvp);
 		vrele(fvp);
 		goto out1;
@@ -2596,15 +2620,17 @@ out:
 		}
 		error = VOP_RENAME(fromnd.ni_dvp, fromnd.ni_vp, &fromnd.ni_cnd,
 				   tond.ni_dvp, tond.ni_vp, &tond.ni_cnd);
+		NDFREE(&fromnd, NDF_ONLY_PNBUF);
+		NDFREE(&tond, NDF_ONLY_PNBUF);
 	} else {
-		VOP_ABORTOP(tond.ni_dvp, &tond.ni_cnd);
+		NDFREE(&fromnd, NDF_ONLY_PNBUF);
+		NDFREE(&tond, NDF_ONLY_PNBUF);
 		if (tdvp == tvp)
 			vrele(tdvp);
 		else
 			vput(tdvp);
 		if (tvp)
 			vput(tvp);
-		VOP_ABORTOP(fromnd.ni_dvp, &fromnd.ni_cnd);
 		vrele(fromnd.ni_dvp);
 		vrele(fvp);
 	}
@@ -2613,11 +2639,9 @@ out:
 	ASSERT_VOP_UNLOCKED(fromnd.ni_vp, "rename");
 	ASSERT_VOP_UNLOCKED(tond.ni_dvp, "rename");
 	ASSERT_VOP_UNLOCKED(tond.ni_vp, "rename");
-	zfree(namei_zone, tond.ni_cnd.cn_pnbuf);
 out1:
 	if (fromnd.ni_startdir)
 		vrele(fromnd.ni_startdir);
-	zfree(namei_zone, fromnd.ni_cnd.cn_pnbuf);
 	if (error == -1)
 		return (0);
 	return (error);
@@ -2652,7 +2676,7 @@ mkdir(p, uap)
 		return (error);
 	vp = nd.ni_vp;
 	if (vp != NULL) {
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 		if (nd.ni_dvp == vp)
 			vrele(nd.ni_dvp);
 		else
@@ -2665,6 +2689,7 @@ mkdir(p, uap)
 	vattr.va_mode = (SCARG(uap, mode) & ACCESSPERMS) &~ p->p_fd->fd_cmask;
 	VOP_LEASE(nd.ni_dvp, p, p->p_ucred, LEASE_WRITE);
 	error = VOP_MKDIR(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &vattr);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vput(nd.ni_dvp);
 	if (!error)
 		vput(nd.ni_vp);
@@ -2714,14 +2739,13 @@ rmdir(p, uap)
 	 */
 	if (vp->v_flag & VROOT)
 		error = EBUSY;
-out:
-	if (!error) {
+	else {
 		VOP_LEASE(nd.ni_dvp, p, p->p_ucred, LEASE_WRITE);
 		VOP_LEASE(vp, p, p->p_ucred, LEASE_WRITE);
 		error = VOP_RMDIR(nd.ni_dvp, nd.ni_vp, &nd.ni_cnd);
-	} else {
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
 	}
+out:
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (nd.ni_dvp == vp)
 		vrele(nd.ni_dvp);
 	else
@@ -3013,6 +3037,7 @@ revoke(p, uap)
 	if ((error = namei(&nd)) != 0)
 		return (error);
 	vp = nd.ni_vp;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (vp->v_type != VCHR && vp->v_type != VBLK) {
 		error = EINVAL;
 		goto out;
@@ -3077,6 +3102,7 @@ getfh(p, uap)
 	error = namei(&nd);
 	if (error)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vp = nd.ni_vp;
 	bzero(&fh, sizeof(fh));
 	fh.fh_fsid = vp->v_mount->mnt_stat.f_fsid;
diff --git a/sys/kern/vfs_vnops.c b/sys/kern/vfs_vnops.c
index ebe3497..7013308 100644
--- a/sys/kern/vfs_vnops.c
+++ b/sys/kern/vfs_vnops.c
@@ -52,6 +52,7 @@
 #include <sys/filio.h>
 #include <sys/ttycom.h>
 #include <sys/conf.h>
+#include <vm/vm_zone.h>
 
 static int vn_closefile __P((struct file *fp, struct proc *p));
 static int vn_ioctl __P((struct file *fp, u_long com, caddr_t data, 
@@ -70,6 +71,9 @@ struct 	fileops vnops =
 /*
  * Common code for vnode open operations.
  * Check permissions, and call the VOP_OPEN or VOP_CREATE routine.
+ * 
+ * Note that this do NOT free nameidata for the successful case,
+ * due to the NDINIT being done elsewhere.
  */
 int
 vn_open(ndp, fmode, cmode)
@@ -100,15 +104,17 @@ vn_open(ndp, fmode, cmode)
 			VOP_LEASE(ndp->ni_dvp, p, cred, LEASE_WRITE);
 			error = VOP_CREATE(ndp->ni_dvp, &ndp->ni_vp,
 					   &ndp->ni_cnd, vap);
-			vput(ndp->ni_dvp);
-			if (error)
+			if (error) {
+				NDFREE(ndp, NDF_ONLY_PNBUF);
+				vput(ndp->ni_dvp);
 				return (error);
+			}
+			vput(ndp->ni_dvp);
 			ASSERT_VOP_UNLOCKED(ndp->ni_dvp, "create");
 			ASSERT_VOP_LOCKED(ndp->ni_vp, "create");
 			fmode &= ~O_TRUNC;
 			vp = ndp->ni_vp;
 		} else {
-			VOP_ABORTOP(ndp->ni_dvp, &ndp->ni_cnd);
 			if (ndp->ni_dvp == ndp->ni_vp)
 				vrele(ndp->ni_dvp);
 			else
@@ -183,6 +189,7 @@ vn_open(ndp, fmode, cmode)
 		vp->v_writecount++;
 	return (0);
 bad:
+	NDFREE(ndp, NDF_ONLY_PNBUF);
 	vput(vp);
 	return (error);
 }
diff --git a/sys/kern/vnode_if.src b/sys/kern/vnode_if.src
index c418164..9fd57af 100644
--- a/sys/kern/vnode_if.src
+++ b/sys/kern/vnode_if.src
@@ -339,14 +339,6 @@ vop_readlink {
 };
 
 #
-#% abortop	dvp	= = =
-#
-vop_abortop {
-	IN struct vnode *dvp;
-	IN struct componentname *cnp;
-};
-
-#
 #% inactive	vp	L U U
 #
 vop_inactive {
diff --git a/sys/miscfs/devfs/devfs_vnops.c b/sys/miscfs/devfs/devfs_vnops.c
index 52cff5c..1771ac8 100644
--- a/sys/miscfs/devfs/devfs_vnops.c
+++ b/sys/miscfs/devfs/devfs_vnops.c
@@ -680,7 +680,6 @@ DBPRINT(("remove\n"));
 	 */
 	if ((error = devfs_vntodn(dvp, &tdp)) != 0) {
 abortit:
-		VOP_ABORTOP(dvp, cnp); 
 		return (error);
 	}
 	if ((error = devfs_vntodn(vp, &tp)) != 0) goto abortit;
@@ -790,7 +789,6 @@ DBPRINT(("link\n"));
 	 || (vp->v_tag != tdvp->v_tag) ) {
 		error = EXDEV;
 abortit:
-		VOP_ABORTOP(tdvp, cnp); 
 		goto out;
 	}
 
@@ -904,14 +902,12 @@ devfs_rename(struct vop_rename_args *ap)
 	 || ((fp->type == DEV_DIR) && (fp->dvm != tdp->dvm ))) {
 		error = EXDEV;
 abortit:
-		VOP_ABORTOP(tdvp, tcnp); 
 		if (tdvp == tvp) /* eh? */
 			vrele(tdvp);
 		else
 			vput(tdvp);
 		if (tvp)
 			vput(tvp);
-		VOP_ABORTOP(fdvp, fcnp); /* XXX, why not in NFS? */
 		vrele(fdvp);
 		vrele(fvp);
 		return (error);
@@ -981,12 +977,10 @@ abortit:
 		}
 
 		/* Release destination completely. */
-		VOP_ABORTOP(tdvp, tcnp);
 		vput(tdvp);
 		vput(tvp);
 
 		/* Delete source. */
-		VOP_ABORTOP(fdvp, fcnp); /*XXX*/
 		vrele(fdvp);
 		vrele(fvp);
 		dev_free_name(fnp);
@@ -1225,22 +1219,6 @@ DBPRINT(("readlink\n"));
 	return error;
 }
 
-#ifdef notyet
-static int
-devfs_abortop(struct vop_abortop_args *ap)
-        /*struct vop_abortop_args {
-                struct vnode *a_dvp;
-                struct componentname *a_cnp;
-        } */
-{
-DBPRINT(("abortop\n"));
-	if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
-		zfree(namei_zone, ap->a_cnp->cn_pnbuf);
-	return 0;
-}
-#endif /* notyet */
-
-
 static int
 devfs_reclaim(struct vop_reclaim_args *ap)
         /*struct vop_reclaim_args {
diff --git a/sys/miscfs/fifofs/fifo_vnops.c b/sys/miscfs/fifofs/fifo_vnops.c
index 4a8199a..b64f957 100644
--- a/sys/miscfs/fifofs/fifo_vnops.c
+++ b/sys/miscfs/fifofs/fifo_vnops.c
@@ -79,7 +79,6 @@ static int	fifo_advlock __P((struct vop_advlock_args *));
 vop_t **fifo_vnodeop_p;
 static struct vnodeopv_entry_desc fifo_vnodeop_entries[] = {
 	{ &vop_default_desc,		(vop_t *) vop_defaultop },
-	{ &vop_abortop_desc,		(vop_t *) fifo_badop },
 	{ &vop_access_desc,		(vop_t *) vop_ebadf },
 	{ &vop_advlock_desc,		(vop_t *) fifo_advlock },
 	{ &vop_bmap_desc,		(vop_t *) fifo_bmap },
diff --git a/sys/miscfs/nullfs/null_vfsops.c b/sys/miscfs/nullfs/null_vfsops.c
index e48a516..1bdc083 100644
--- a/sys/miscfs/nullfs/null_vfsops.c
+++ b/sys/miscfs/nullfs/null_vfsops.c
@@ -53,6 +53,7 @@
 #include <sys/mount.h>
 #include <sys/namei.h>
 #include <miscfs/nullfs/null.h>
+#include <vm/vm_zone.h>
 
 static MALLOC_DEFINE(M_NULLFSMNT, "NULLFS mount", "NULLFS mount structure");
 
@@ -137,6 +138,7 @@ nullfs_mount(mp, path, data, ndp, p)
 
 	if (error)
 		return (error);
+	NDFREE(ndp, NDF_ONLY_PNBUF);
 
 	/*
 	 * Sanity check on lower vnode
diff --git a/sys/miscfs/procfs/procfs_vnops.c b/sys/miscfs/procfs/procfs_vnops.c
index 17075db..d7de7ce 100644
--- a/sys/miscfs/procfs/procfs_vnops.c
+++ b/sys/miscfs/procfs/procfs_vnops.c
@@ -60,7 +60,6 @@
 #include <miscfs/procfs/procfs.h>
 #include <sys/pioctl.h>
 
-static int	procfs_abortop __P((struct vop_abortop_args *));
 static int	procfs_access __P((struct vop_access_args *));
 static int	procfs_badop __P((void));
 static int	procfs_bmap __P((struct vop_bmap_args *));
@@ -391,25 +390,6 @@ procfs_print(ap)
 }
 
 /*
- * _abortop is called when operations such as
- * rename and create fail.  this entry is responsible
- * for undoing any side-effects caused by the lookup.
- * this will always include freeing the pathname buffer.
- */
-static int
-procfs_abortop(ap)
-	struct vop_abortop_args /* {
-		struct vnode *a_dvp;
-		struct componentname *a_cnp;
-	} */ *ap;
-{
-
-	if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
-		zfree(namei_zone, ap->a_cnp->cn_pnbuf);
-	return (0);
-}
-
-/*
  * generic entry point for unsupported operations
  */
 static int
@@ -997,7 +977,6 @@ atopid(b, len)
 vop_t **procfs_vnodeop_p;
 static struct vnodeopv_entry_desc procfs_vnodeop_entries[] = {
 	{ &vop_default_desc,		(vop_t *) vop_defaultop },
-	{ &vop_abortop_desc,		(vop_t *) procfs_abortop },
 	{ &vop_access_desc,		(vop_t *) procfs_access },
 	{ &vop_advlock_desc,		(vop_t *) procfs_badop },
 	{ &vop_bmap_desc,		(vop_t *) procfs_bmap },
diff --git a/sys/miscfs/umapfs/umap_vfsops.c b/sys/miscfs/umapfs/umap_vfsops.c
index afa44f0..48894fe 100644
--- a/sys/miscfs/umapfs/umap_vfsops.c
+++ b/sys/miscfs/umapfs/umap_vfsops.c
@@ -52,6 +52,7 @@
 #include <sys/namei.h>
 #include <sys/malloc.h>
 #include <miscfs/umapfs/umap.h>
+#include <vm/vm_zone.h>
 
 static MALLOC_DEFINE(M_UMAPFSMNT, "UMAP mount", "UMAP mount structure");
 
@@ -129,6 +130,7 @@ umapfs_mount(mp, path, data, ndp, p)
 	error = namei(ndp);
 	if (error)
 		return (error);
+	NDFREE(ndp, NDF_ONLY_PNBUF);
 
 	/*
 	 * Sanity check on lower vnode
diff --git a/sys/miscfs/union/union_subr.c b/sys/miscfs/union/union_subr.c
index d7caf10..6b88bef 100644
--- a/sys/miscfs/union/union_subr.c
+++ b/sys/miscfs/union/union_subr.c
@@ -846,8 +846,6 @@ union_relookup(um, dvp, vpp, cnp, cn, path, pathlen)
 	 * by namei, some of the work done by lookup and some of
 	 * the work done by VOP_LOOKUP when given a CREATE flag.
 	 * Conclusion: Horrible.
-	 *
-	 * The pathname buffer will be FREEed by VOP_MKDIR.
 	 */
 	cn->cn_namelen = pathlen;
 	cn->cn_pnbuf = zalloc(namei_zone);
@@ -874,8 +872,6 @@ union_relookup(um, dvp, vpp, cnp, cn, path, pathlen)
 	 */
 
 	if ((error = relookup(dvp, vpp, cn)) != 0) {
-		zfree(namei_zone, cn->cn_pnbuf);
-		cn->cn_pnbuf = NULL;
 		vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY, cnp->cn_proc);
 		return(error);
 	}
@@ -921,7 +917,10 @@ union_mkshadow(um, dvp, cnp, vpp)
 		return (error);
 
 	if (*vpp) {
-		VOP_ABORTOP(dvp, &cn);
+		if (cn.cn_flags & HASBUF) {
+			zfree(namei_zone, cn.cn_pnbuf);
+			cn.cn_flags &= ~HASBUF;
+		}
 		if (dvp == *vpp)
 			vrele(*vpp);
 		else
@@ -946,6 +945,10 @@ union_mkshadow(um, dvp, cnp, vpp)
 	VOP_LEASE(dvp, p, cn.cn_cred, LEASE_WRITE);
 
 	error = VOP_MKDIR(dvp, vpp, &cn, &va);
+	if (cn.cn_flags & HASBUF) {
+		zfree(namei_zone, cn.cn_pnbuf);
+		cn.cn_flags &= ~HASBUF;
+	}
 	/*vput(dvp);*/
 	return (error);
 }
@@ -976,7 +979,10 @@ union_mkwhiteout(um, dvp, cnp, path)
 		return (error);
 
 	if (wvp) {
-		VOP_ABORTOP(dvp, &cn);
+		if (cn.cn_flags & HASBUF) {
+			zfree(namei_zone, cn.cn_pnbuf);
+			cn.cn_flags &= ~HASBUF;
+		}
 		if (wvp == dvp)
 			vrele(wvp);
 		else
@@ -988,8 +994,10 @@ union_mkwhiteout(um, dvp, cnp, path)
 	VOP_LEASE(dvp, p, p->p_ucred, LEASE_WRITE);
 
 	error = VOP_WHITEOUT(dvp, &cn, CREATE);
-	if (error)
-		VOP_ABORTOP(dvp, &cn);
+	if (cn.cn_flags & HASBUF) {
+		zfree(namei_zone, cn.cn_pnbuf);
+		cn.cn_flags &= ~HASBUF;
+	}
 	return (error);
 }
 
@@ -1059,7 +1067,10 @@ union_vn_create(vpp, un, p)
 	 */
 	if (vp) {
 		vput(un->un_dirvp);
-		VOP_ABORTOP(un->un_dirvp, &cn);
+		if (cn.cn_flags & HASBUF) {
+			zfree(namei_zone, cn.cn_pnbuf);
+			cn.cn_flags &= ~HASBUF;
+		}
 		if (vp == un->un_dirvp)
 			vrele(vp);
 		else
@@ -1082,6 +1093,10 @@ union_vn_create(vpp, un, p)
 	vap->va_mode = cmode;
 	VOP_LEASE(un->un_dirvp, p, cred, LEASE_WRITE);
 	error = VOP_CREATE(un->un_dirvp, &vp, &cn, vap);
+	if (cn.cn_flags & HASBUF) {
+		zfree(namei_zone, cn.cn_pnbuf);
+		cn.cn_flags &= ~HASBUF;
+	}
 	vput(un->un_dirvp);
 	if (error)
 		return (error);
diff --git a/sys/miscfs/union/union_vfsops.c b/sys/miscfs/union/union_vfsops.c
index ccd9a13..f5782fa 100644
--- a/sys/miscfs/union/union_vfsops.c
+++ b/sys/miscfs/union/union_vfsops.c
@@ -52,6 +52,7 @@
 #include <sys/malloc.h>
 #include <sys/filedesc.h>
 #include <miscfs/union/union.h>
+#include <vm/vm_zone.h>
 
 static MALLOC_DEFINE(M_UNIONFSMNT, "UNION mount", "UNION mount structure");
 
@@ -144,6 +145,7 @@ union_mount(mp, path, data, ndp, p)
 	if (error)
 		goto bad;
 
+	NDFREE(ndp, NDF_ONLY_PNBUF);
 	upperrootvp = ndp->ni_vp;
 	vrele(ndp->ni_dvp);
 	ndp->ni_dvp = NULL;
diff --git a/sys/miscfs/union/union_vnops.c b/sys/miscfs/union/union_vnops.c
index 5ab1036..03d41a0 100644
--- a/sys/miscfs/union/union_vnops.c
+++ b/sys/miscfs/union/union_vnops.c
@@ -67,7 +67,6 @@ SYSCTL_INT(_vfs, OID_AUTO, uniondebug, CTLFLAG_RW, &uniondebug, 0, "");
 SYSCTL_INT(_vfs, OID_AUTO, uniondebug, CTLFLAG_RD, &uniondebug, 0, "");
 #endif
 
-static int	union_abortop __P((struct vop_abortop_args *ap));
 static int	union_access __P((struct vop_access_args *ap));
 static int	union_advlock __P((struct vop_advlock_args *ap));
 static int	union_bmap __P((struct vop_bmap_args *ap));
@@ -1682,43 +1681,6 @@ union_readlink(ap)
 }
 
 /*
- *	union_abortop:
- *
- *	dvp is locked on entry and left locked on return
- *
- */
-
-static int
-union_abortop(ap)
-	struct vop_abortop_args /* {
-		struct vnode *a_dvp;
-		struct componentname *a_cnp;
-	} */ *ap;
-{
-	struct componentname *cnp = ap->a_cnp;
-	struct proc *p = cnp->cn_proc;
-	struct union_node *un = VTOUNION(ap->a_dvp);
-	int islocked = VOP_ISLOCKED(ap->a_dvp, NULL);
-	struct vnode *vp;
-	int error;
-
-	if (islocked) {
-		vp = union_lock_other(un, p);
-	} else {
-		vp = OTHERVP(ap->a_dvp);
-	}
-	KASSERT(vp != NULL, ("union_abortop: backing vnode missing!"));
-
-	ap->a_dvp = vp;
-	error = VCALL(vp, VOFFSET(vop_abortop), ap);
-
-	if (islocked)
-		union_unlock_other(vp, p);
-
-	return (error);
-}
-
-/*
  *	union_inactive:
  *
  *	Called with the vnode locked.  We are expected to unlock the vnode.
@@ -1974,7 +1936,6 @@ union_strategy(ap)
 vop_t **union_vnodeop_p;
 static struct vnodeopv_entry_desc union_vnodeop_entries[] = {
 	{ &vop_default_desc,		(vop_t *) vop_defaultop },
-	{ &vop_abortop_desc,		(vop_t *) union_abortop },
 	{ &vop_access_desc,		(vop_t *) union_access },
 	{ &vop_advlock_desc,		(vop_t *) union_advlock },
 	{ &vop_bmap_desc,		(vop_t *) union_bmap },
diff --git a/sys/msdosfs/msdosfs_vfsops.c b/sys/msdosfs/msdosfs_vfsops.c
index 5005de3..3fd65ec 100644
--- a/sys/msdosfs/msdosfs_vfsops.c
+++ b/sys/msdosfs/msdosfs_vfsops.c
@@ -60,6 +60,7 @@
 #include <sys/fcntl.h>
 #include <sys/malloc.h>
 #include <sys/stat.h> 				/* defines ALLPERMS */
+#include <vm/vm_zone.h>
 
 #include <msdosfs/bpb.h>
 #include <msdosfs/bootsect.h>
@@ -288,6 +289,7 @@ msdosfs_mount(mp, path, data, ndp, p)
 	if (error)
 		return (error);
 	devvp = ndp->ni_vp;
+	NDFREE(ndp, NDF_ONLY_PNBUF);
 
 	if (!vn_isdisk(devvp)) {
 		vrele(devvp);
diff --git a/sys/msdosfs/msdosfs_vnops.c b/sys/msdosfs/msdosfs_vnops.c
index 05139a7..3ef8e74 100644
--- a/sys/msdosfs/msdosfs_vnops.c
+++ b/sys/msdosfs/msdosfs_vnops.c
@@ -93,7 +93,6 @@ static int msdosfs_mkdir __P((struct vop_mkdir_args *));
 static int msdosfs_rmdir __P((struct vop_rmdir_args *));
 static int msdosfs_symlink __P((struct vop_symlink_args *));
 static int msdosfs_readdir __P((struct vop_readdir_args *));
-static int msdosfs_abortop __P((struct vop_abortop_args *));
 static int msdosfs_bmap __P((struct vop_bmap_args *));
 static int msdosfs_strategy __P((struct vop_strategy_args *));
 static int msdosfs_print __P((struct vop_print_args *));
@@ -185,13 +184,10 @@ msdosfs_create(ap)
 	error = createde(&ndirent, pdep, &dep, cnp);
 	if (error)
 		goto bad;
-	if ((cnp->cn_flags & SAVESTART) == 0)
-		zfree(namei_zone, cnp->cn_pnbuf);
 	*ap->a_vpp = DETOV(dep);
 	return (0);
 
 bad:
-	zfree(namei_zone, cnp->cn_pnbuf);
 	return (error);
 }
 
@@ -215,7 +211,6 @@ msdosfs_mknod(ap)
 		break;
 
 	default:
-		zfree(namei_zone, ap->a_cnp->cn_pnbuf);
 		return (EINVAL);
 	}
 	/* NOTREACHED */
@@ -906,7 +901,6 @@ msdosfs_link(ap)
 		struct componentname *a_cnp;
 	} */ *ap;
 {
-	VOP_ABORTOP(ap->a_tdvp, ap->a_cnp);
 	return (EOPNOTSUPP);
 }
 
@@ -1015,14 +1009,12 @@ msdosfs_rename(ap)
 	    (tvp && (fvp->v_mount != tvp->v_mount))) {
 		error = EXDEV;
 abortit:
-		VOP_ABORTOP(tdvp, tcnp);
 		if (tdvp == tvp)
 			vrele(tdvp);
 		else
 			vput(tdvp);
 		if (tvp)
 			vput(tvp);
-		VOP_ABORTOP(fdvp, fcnp);
 		vrele(fdvp);
 		vrele(fvp);
 		return (error);
@@ -1420,15 +1412,12 @@ msdosfs_mkdir(ap)
 	error = createde(&ndirent, pdep, &dep, cnp);
 	if (error)
 		goto bad;
-	if ((cnp->cn_flags & SAVESTART) == 0)
-		zfree(namei_zone, cnp->cn_pnbuf);
 	*ap->a_vpp = DETOV(dep);
 	return (0);
 
 bad:
 	clusterfree(pmp, newcluster, NULL);
 bad2:
-	zfree(namei_zone, cnp->cn_pnbuf);
 	return (error);
 }
 
@@ -1504,8 +1493,6 @@ msdosfs_symlink(ap)
 		char *a_target;
 	} */ *ap;
 {
-	zfree(namei_zone, ap->a_cnp->cn_pnbuf);
-	/* VOP_ABORTOP(ap->a_dvp, ap->a_cnp); ??? */
 	return (EOPNOTSUPP);
 }
 
@@ -1776,18 +1763,6 @@ out:
 	return (error);
 }
 
-static int
-msdosfs_abortop(ap)
-	struct vop_abortop_args /* {
-		struct vnode *a_dvp;
-		struct componentname *a_cnp;
-	} */ *ap;
-{
-	if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
-		zfree(namei_zone, ap->a_cnp->cn_pnbuf);
-	return (0);
-}
-
 /*
  * vp  - address of vnode file the file
  * bn  - which cluster we are interested in mapping to a filesystem block number.
@@ -1950,7 +1925,6 @@ msdosfs_putpages(ap)
 vop_t **msdosfs_vnodeop_p;
 static struct vnodeopv_entry_desc msdosfs_vnodeop_entries[] = {
 	{ &vop_default_desc,		(vop_t *) vop_defaultop },
-	{ &vop_abortop_desc,		(vop_t *) msdosfs_abortop },
 	{ &vop_access_desc,		(vop_t *) msdosfs_access },
 	{ &vop_bmap_desc,		(vop_t *) msdosfs_bmap },
 	{ &vop_cachedlookup_desc,	(vop_t *) msdosfs_lookup },
diff --git a/sys/nfs/nfs_node.c b/sys/nfs/nfs_node.c
index 4db6fc2..89cbdce 100644
--- a/sys/nfs/nfs_node.c
+++ b/sys/nfs/nfs_node.c
@@ -388,20 +388,3 @@ nfs_islocked(ap)
 }
 #endif
 
-/*
- * Nfs abort op, called after namei() when a CREATE/DELETE isn't actually
- * done. Currently nothing to do.
- */
-/* ARGSUSED */
-int
-nfs_abortop(ap)
-	struct vop_abortop_args /* {
-		struct vnode *a_dvp;
-		struct componentname *a_cnp;
-	} */ *ap;
-{
-
-	if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
-		zfree(namei_zone, ap->a_cnp->cn_pnbuf);
-	return (0);
-}
diff --git a/sys/nfs/nfs_serv.c b/sys/nfs/nfs_serv.c
index ffaeea7..405e437 100644
--- a/sys/nfs/nfs_serv.c
+++ b/sys/nfs/nfs_serv.c
@@ -61,21 +61,13 @@
  *	and note that nfsm_*() macros can terminate a procedure on certain
  *	errors.
  *
- *	VOP_ABORTOP() only frees the path component if HASBUF is set and
- *	SAVESTART is *not* set.
- *
- *	Various VOP_*() routines tend to free the path component if an 
- *	error occurs.  If no error occurs, the VOP_*() routines only free
- *	the path component if SAVESTART is NOT set.
- *
  *	lookup() and namei()
  *	may return garbage in various structural fields/return elements
  *	if an error is returned, and may garbage up nd.ni_dvp even if no
  *	error is returned and you did not request LOCKPARENT or WANTPARENT.
  *
  *	We use the ni_cnd.cn_flags 'HASBUF' flag to track whether the name
- *	buffer has been freed or not.  This is unique to nfs_serv.c for
- *	the moment, the rest of the system sets HASBUF but never clears it.
+ *	buffer has been freed or not.
  */
 
 #include <sys/param.h>
@@ -604,8 +596,7 @@ nfsrv_lookup(nfsd, slp, procp, mrq)
 	 */
 	vrele(ndp->ni_startdir);
 	ndp->ni_startdir = NULL;
-	zfree(namei_zone, nd.ni_cnd.cn_pnbuf);
-	nd.ni_cnd.cn_flags &= ~HASBUF;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 
 	/*
 	 * Get underlying attribute, then release remaining resources ( for
@@ -638,8 +629,7 @@ nfsrv_lookup(nfsd, slp, procp, mrq)
 nfsmout:
 	if (dirp)
 		vrele(dirp);
-	if (nd.ni_cnd.cn_flags & HASBUF)
-		zfree(namei_zone, nd.ni_cnd.cn_pnbuf);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (ndp->ni_startdir)
 		vrele(ndp->ni_startdir);
 	if (ndp->ni_vp)
@@ -1736,9 +1726,9 @@ nfsrv_create(nfsd, slp, procp, mrq)
 		if (vap->va_type == VREG || vap->va_type == VSOCK) {
 			nqsrv_getl(nd.ni_dvp, ND_WRITE);
 			error = VOP_CREATE(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, vap);
-			if (error) {
-				nd.ni_cnd.cn_flags &= ~HASBUF;
-			} else {
+			if (error)
+				NDFREE(&nd, NDF_ONLY_PNBUF);
+			else {
 			    	nfsrv_object_create(nd.ni_vp);
 				if (exclusive_flag) {
 					exclusive_flag = 0;
@@ -1769,7 +1759,7 @@ nfsrv_create(nfsd, slp, procp, mrq)
 
 			error = VOP_MKNOD(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, vap);
 			if (error) {
-				nd.ni_cnd.cn_flags &= ~HASBUF;
+				NDFREE(&nd, NDF_ONLY_PNBUF);
 				goto nfsmreply0;
 			}
 			vput(nd.ni_vp);
@@ -1864,15 +1854,7 @@ nfsmout:
 	}
 	if (dirp)
 		vrele(dirp);
-	if (nd.ni_cnd.cn_flags & HASBUF) {
-		/*
-		 * Since SAVESTART is set, we own the buffer and need to
-		 * zfree it ourselves.
-		 */
-		if (nd.ni_dvp)
-			VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
-		zfree(namei_zone, nd.ni_cnd.cn_pnbuf);
-	}
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (nd.ni_dvp) {
 		if (nd.ni_dvp == nd.ni_vp)
 			vrele(nd.ni_dvp);
@@ -1970,7 +1952,7 @@ nfsrv_mknod(nfsd, slp, procp, mrq)
 		nqsrv_getl(nd.ni_dvp, ND_WRITE);
 		error = VOP_CREATE(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, vap);
 		if (error)
-			nd.ni_cnd.cn_flags &= ~HASBUF;
+			NDFREE(&nd, NDF_ONLY_PNBUF);
 	} else {
 		if (vtyp != VFIFO && (error = suser_xxx(cred, 0, 0)))
 			goto out;
@@ -1978,7 +1960,7 @@ nfsrv_mknod(nfsd, slp, procp, mrq)
 
 		error = VOP_MKNOD(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, vap);
 		if (error) {
-			nd.ni_cnd.cn_flags &= ~HASBUF;
+			NDFREE(&nd, NDF_ONLY_PNBUF);
 			goto out;
 		}
 		vput(nd.ni_vp);
@@ -2012,16 +1994,7 @@ out:
 		vrele(nd.ni_startdir);
 		nd.ni_startdir = NULL;
 	}
-	if (nd.ni_cnd.cn_flags & HASBUF) {
-		/*
-		 * Since SAVESTART is set, we own the buffer and need to
-		 * zfree it ourselves.
-		 */
-		if (nd.ni_dvp)
-			VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
-		nd.ni_cnd.cn_flags &= ~HASBUF;
-		zfree(namei_zone, nd.ni_cnd.cn_pnbuf);
-	}
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (nd.ni_dvp) {
 		if (nd.ni_dvp == nd.ni_vp)
 			vrele(nd.ni_dvp);
@@ -2057,15 +2030,7 @@ nfsmout:
 		vrele(dirp);
 	if (nd.ni_startdir)
 		vrele(nd.ni_startdir);
-	if (nd.ni_cnd.cn_flags & HASBUF) {
-		/*
-		 * Since SAVESTART is set, we own the buffer and need to
-		 * zfree it ourselves.
-		 */
-		if (nd.ni_dvp)
-			VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
-		zfree(namei_zone, nd.ni_cnd.cn_pnbuf);
-	}
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (nd.ni_dvp) {
 		if (nd.ni_dvp == nd.ni_vp)
 			vrele(nd.ni_dvp);
@@ -2143,7 +2108,7 @@ out:
 			nqsrv_getl(nd.ni_dvp, ND_WRITE);
 			nqsrv_getl(nd.ni_vp, ND_WRITE);
 			error = VOP_REMOVE(nd.ni_dvp, nd.ni_vp, &nd.ni_cnd);
-			nd.ni_cnd.cn_flags &= ~HASBUF;
+			NDFREE(&nd, NDF_ONLY_PNBUF);
 		}
 	}
 	if (dirp && v3) {
@@ -2157,14 +2122,7 @@ out:
 		error = 0;
 	}
 nfsmout:
-	if (nd.ni_cnd.cn_flags & HASBUF) {
-		/*
-		 * Since SAVESTART is not set, this is sufficient to free
-		 * the component buffer.  It's actually a NOP since we
-		 * do not save the name, but what the hey.
-		 */
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
-	}
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (nd.ni_dvp) {
 		if (nd.ni_dvp == nd.ni_vp)
 			vrele(nd.ni_dvp);
@@ -2327,11 +2285,6 @@ nfsrv_rename(nfsd, slp, procp, mrq)
 out:
 	if (!error) {
 		/*
-		 * Do rename.  If an error occured, the underlying path
-		 * components are freed by the VOP routine.  If no error
-		 * occured, the SAVESTART flag prevents them from being
-		 * freed.
-		 *
 		 * The VOP_RENAME function releases all vnode references &
 		 * locks prior to returning so we need to clear the pointers
 		 * to bypass cleanup code later on.
@@ -2378,15 +2331,7 @@ nfsmout:
 		vrele(tdirp);
 	if (tond.ni_startdir)
 		vrele(tond.ni_startdir);
-	if (tond.ni_cnd.cn_flags & HASBUF) {
-		/*
-		 * The VOP_ABORTOP is probably a NOP.  Since we have set
-		 * SAVESTART, we need to zfree the buffer ourselves.
-		 */
-		if (tond.ni_dvp)
-			VOP_ABORTOP(tond.ni_dvp, &tond.ni_cnd);
-		zfree(namei_zone, tond.ni_cnd.cn_pnbuf);
-	}
+	NDFREE(&tond, NDF_ONLY_PNBUF);
 	if (tond.ni_dvp) {
 		if (tond.ni_dvp == tond.ni_vp)
 			vrele(tond.ni_dvp);
@@ -2403,11 +2348,7 @@ nfsmout:
 		vrele(fdirp);
 	if (fromnd.ni_startdir)
 		vrele(fromnd.ni_startdir);
-	if (fromnd.ni_cnd.cn_flags & HASBUF) {
-		if (fromnd.ni_dvp)
-			VOP_ABORTOP(fromnd.ni_dvp, &fromnd.ni_cnd);
-		zfree(namei_zone, fromnd.ni_cnd.cn_pnbuf);
-	}
+	NDFREE(&fromnd, NDF_ONLY_PNBUF);
 	if (fromnd.ni_dvp)
 		vrele(fromnd.ni_dvp);
 	if (fromnd.ni_vp)
@@ -2494,15 +2435,10 @@ nfsrv_link(nfsd, slp, procp, mrq)
 		error = EXDEV;
 out:
 	if (!error) {
-		/*
-		 * Do the link op.  Since SAVESTART is not set, the 
-		 * underlying path component is freed whether an error
-		 * is returned or not.
-		 */
 		nqsrv_getl(vp, ND_WRITE);
 		nqsrv_getl(xp, ND_WRITE);
 		error = VOP_LINK(nd.ni_dvp, vp, &nd.ni_cnd);
-		nd.ni_cnd.cn_flags &= ~HASBUF;
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 	}
 	/* fall through */
 
@@ -2520,14 +2456,7 @@ out1:
 	/* fall through */
 
 nfsmout:
-	if (nd.ni_cnd.cn_flags & HASBUF) {
-		/*
-		 * Since we are not using SAVESTART,
-		 * VOP_ABORTOP is sufficient to free the path component
-		 */
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
-		/* zfree(namei_zone, nd.ni_cnd.cn_pnbuf); */
-	}
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (dirp)
 		vrele(dirp);
 	if (vp)
@@ -2629,7 +2558,7 @@ nfsrv_symlink(nfsd, slp, procp, mrq)
 	nqsrv_getl(nd.ni_dvp, ND_WRITE);
 	error = VOP_SYMLINK(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, vap, pathcp);
 	if (error)
-		nd.ni_cnd.cn_flags &= ~HASBUF;
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 	else {
 		vput(nd.ni_vp);
 		nd.ni_vp = NULL;
@@ -2700,15 +2629,7 @@ out:
 	/* fall through */
 
 nfsmout:
-	if (nd.ni_cnd.cn_flags & HASBUF) {
-		/*
-		 * Since SAVESTART is set, we own the buffer and need to
-		 * zfree it ourselves.
-		 */
-		if (nd.ni_dvp)
-			VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
-		zfree(namei_zone, nd.ni_cnd.cn_pnbuf);
-	}
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (nd.ni_dvp) {
 		if (nd.ni_dvp == nd.ni_vp)
 			vrele(nd.ni_dvp);
@@ -2801,12 +2722,7 @@ nfsrv_mkdir(nfsd, slp, procp, mrq)
 
 	vap->va_type = VDIR;
 	if (nd.ni_vp != NULL) {
-		/*
-		 * Freeup path component.  Since SAVESTART was not set,
-		 * VOP_ABORTOP() will handle it.
-		 */
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
-		nd.ni_cnd.cn_flags &= ~HASBUF;
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 		error = EEXIST;
 		goto out;
 	}
@@ -2818,7 +2734,7 @@ nfsrv_mkdir(nfsd, slp, procp, mrq)
 	 */
 	nqsrv_getl(nd.ni_dvp, ND_WRITE);
 	error = VOP_MKDIR(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, vap);
-	nd.ni_cnd.cn_flags &= ~HASBUF;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vpexcl = 1;
 
 	vput(nd.ni_dvp);
@@ -2853,12 +2769,7 @@ nfsmout:
 	if (dirp)
 		vrele(dirp);
 	if (nd.ni_dvp) {
-		/*
-		 * Since SAVESTART is not set, VOP_ABORTOP will always free
-		 * the path component.
-		 */
-		if (nd.ni_cnd.cn_flags & HASBUF)
-			VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 		if (nd.ni_dvp == nd.ni_vp && vpexcl)
 			vrele(nd.ni_dvp);
 		else
@@ -2953,10 +2864,8 @@ out:
 		nqsrv_getl(nd.ni_dvp, ND_WRITE);
 		nqsrv_getl(vp, ND_WRITE);
 		error = VOP_RMDIR(nd.ni_dvp, nd.ni_vp, &nd.ni_cnd);
-	} else {
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
 	}
-	nd.ni_cnd.cn_flags &= ~HASBUF;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 
 	if (dirp)
 		diraft_ret = VOP_GETATTR(dirp, &diraft, cred, procp);
@@ -2968,12 +2877,7 @@ out:
 	/* fall through */
 
 nfsmout:
-	/*
-	 * Since SAVESTART is not set, a VOP_ABORTOP is sufficient to
-	 * deal with the pathname component.
-	 */
-	if (nd.ni_cnd.cn_flags & HASBUF)
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (dirp)
 		vrele(dirp);
 	if (nd.ni_dvp) {
diff --git a/sys/nfs/nfs_syscalls.c b/sys/nfs/nfs_syscalls.c
index cd4b351..7519e68 100644
--- a/sys/nfs/nfs_syscalls.c
+++ b/sys/nfs/nfs_syscalls.c
@@ -55,6 +55,7 @@
 #include <sys/domain.h>
 #include <sys/protosw.h>
 #include <sys/namei.h>
+#include <vm/vm_zone.h>
 
 #include <netinet/in.h>
 #include <netinet/tcp.h>
@@ -179,6 +180,7 @@ nfssvc(p, uap)
 		error = namei(&nd);
 		if (error)
 			return (error);
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 		if ((nd.ni_vp->v_flag & VROOT) == 0)
 			error = EINVAL;
 		nmp = VFSTONFS(nd.ni_vp->v_mount);
diff --git a/sys/nfs/nfs_vnops.c b/sys/nfs/nfs_vnops.c
index 7774b8b..4097d96 100644
--- a/sys/nfs/nfs_vnops.c
+++ b/sys/nfs/nfs_vnops.c
@@ -138,7 +138,6 @@ static int	nfs_bwrite __P((struct vop_bwrite_args *));
 vop_t **nfsv2_vnodeop_p;
 static struct vnodeopv_entry_desc nfsv2_vnodeop_entries[] = {
 	{ &vop_default_desc,		(vop_t *) vop_defaultop },
-	{ &vop_abortop_desc,		(vop_t *) nfs_abortop },
 	{ &vop_access_desc,		(vop_t *) nfs_access },
 	{ &vop_advlock_desc,		(vop_t *) nfs_advlock },
 	{ &vop_bmap_desc,		(vop_t *) nfs_bmap },
@@ -1249,11 +1248,9 @@ nfs_mknodrpc(dvp, vpp, cnp, vap)
 	else if (vap->va_type == VFIFO || vap->va_type == VSOCK)
 		rdev = nfs_xdrneg1;
 	else {
-		VOP_ABORTOP(dvp, cnp);
 		return (EOPNOTSUPP);
 	}
 	if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_proc)) != 0) {
-		VOP_ABORTOP(dvp, cnp);
 		return (error);
 	}
 	nfsstats.rpccnt[NFSPROC_MKNOD]++;
@@ -1304,7 +1301,6 @@ nfs_mknodrpc(dvp, vpp, cnp, vap)
 			cache_enter(dvp, newvp, cnp);
 		*vpp = newvp;
 	}
-	zfree(namei_zone, cnp->cn_pnbuf);
 	VTONFS(dvp)->n_flag |= NMODIFIED;
 	if (!wccflag)
 		VTONFS(dvp)->n_attrstamp = 0;
@@ -1363,7 +1359,6 @@ nfs_create(ap)
 		return (nfs_mknodrpc(dvp, ap->a_vpp, cnp, vap));
 
 	if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_proc)) != 0) {
-		VOP_ABORTOP(dvp, cnp);
 		return (error);
 	}
 	if (vap->va_vaflags & VA_EXCLUSIVE)
@@ -1430,8 +1425,6 @@ again:
 			cache_enter(dvp, newvp, cnp);
 		*ap->a_vpp = newvp;
 	}
-	if (error || (cnp->cn_flags & SAVESTART) == 0)
-		zfree(namei_zone, cnp->cn_pnbuf);
 	VTONFS(dvp)->n_flag |= NMODIFIED;
 	if (!wccflag)
 		VTONFS(dvp)->n_attrstamp = 0;
@@ -1503,7 +1496,6 @@ nfs_remove(ap)
 			error = 0;
 	} else if (!np->n_sillyrename)
 		error = nfs_sillyrename(dvp, vp, cnp);
-	zfree(namei_zone, cnp->cn_pnbuf);
 	np->n_attrstamp = 0;
 	return (error);
 }
@@ -1623,14 +1615,12 @@ nfs_rename(ap)
 	}
 
 out:
-	VOP_ABORTOP(tdvp, tcnp);
 	if (tdvp == tvp)
 		vrele(tdvp);
 	else
 		vput(tdvp);
 	if (tvp)
 		vput(tvp);
-	VOP_ABORTOP(fdvp, fcnp);
 	vrele(fdvp);
 	vrele(fvp);
 	/*
@@ -1722,7 +1712,6 @@ nfs_link(ap)
 	int v3;
 
 	if (vp->v_mount != tdvp->v_mount) {
-		VOP_ABORTOP(tdvp, cnp);
 		return (EXDEV);
 	}
 
@@ -1746,7 +1735,6 @@ nfs_link(ap)
 		nfsm_wcc_data(tdvp, wccflag);
 	}
 	nfsm_reqdone;
-	zfree(namei_zone, cnp->cn_pnbuf);
 	VTONFS(tdvp)->n_flag |= NMODIFIED;
 	if (!attrflag)
 		VTONFS(vp)->n_attrstamp = 0;
@@ -1856,12 +1844,6 @@ nfs_symlink(ap)
 	VTONFS(dvp)->n_flag |= NMODIFIED;
 	if (!wccflag)
 		VTONFS(dvp)->n_attrstamp = 0;
-	/*
-	 * cnp's buffer expected to be freed if SAVESTART not set or
-	 * if an error was returned.
-	 */
-	if (error || (cnp->cn_flags & SAVESTART) == 0)
-		zfree(namei_zone, cnp->cn_pnbuf);
 	return (error);
 }
 
@@ -1895,7 +1877,6 @@ nfs_mkdir(ap)
 	int v3 = NFS_ISV3(dvp);
 
 	if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_proc)) != 0) {
-		VOP_ABORTOP(dvp, cnp);
 		return (error);
 	}
 	len = cnp->cn_namelen;
@@ -1946,8 +1927,6 @@ nfs_mkdir(ap)
 			vrele(newvp);
 	} else
 		*ap->a_vpp = newvp;
-	if (error || (cnp->cn_flags & SAVESTART) == 0)
-		zfree(namei_zone, cnp->cn_pnbuf);
 	return (error);
 }
 
@@ -1984,7 +1963,6 @@ nfs_rmdir(ap)
 	if (v3)
 		nfsm_wcc_data(dvp, wccflag);
 	nfsm_reqdone;
-	zfree(namei_zone, cnp->cn_pnbuf);
 	VTONFS(dvp)->n_flag |= NMODIFIED;
 	if (!wccflag)
 		VTONFS(dvp)->n_attrstamp = 0;
diff --git a/sys/nfs/nfsnode.h b/sys/nfs/nfsnode.h
index 1ca4529..e654bc0 100644
--- a/sys/nfs/nfsnode.h
+++ b/sys/nfs/nfsnode.h
@@ -194,7 +194,6 @@ int	nfs_getpages __P((struct vop_getpages_args *));
 int	nfs_putpages __P((struct vop_putpages_args *));
 int	nfs_write __P((struct vop_write_args *));
 int	nqnfs_vop_lease_check __P((struct vop_lease_args *));
-int	nfs_abortop __P((struct vop_abortop_args *));
 int	nfs_inactive __P((struct vop_inactive_args *));
 int	nfs_reclaim __P((struct vop_reclaim_args *));
 
diff --git a/sys/nfsclient/nfs_nfsiod.c b/sys/nfsclient/nfs_nfsiod.c
index cd4b351..7519e68 100644
--- a/sys/nfsclient/nfs_nfsiod.c
+++ b/sys/nfsclient/nfs_nfsiod.c
@@ -55,6 +55,7 @@
 #include <sys/domain.h>
 #include <sys/protosw.h>
 #include <sys/namei.h>
+#include <vm/vm_zone.h>
 
 #include <netinet/in.h>
 #include <netinet/tcp.h>
@@ -179,6 +180,7 @@ nfssvc(p, uap)
 		error = namei(&nd);
 		if (error)
 			return (error);
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 		if ((nd.ni_vp->v_flag & VROOT) == 0)
 			error = EINVAL;
 		nmp = VFSTONFS(nd.ni_vp->v_mount);
diff --git a/sys/nfsclient/nfs_node.c b/sys/nfsclient/nfs_node.c
index 4db6fc2..89cbdce 100644
--- a/sys/nfsclient/nfs_node.c
+++ b/sys/nfsclient/nfs_node.c
@@ -388,20 +388,3 @@ nfs_islocked(ap)
 }
 #endif
 
-/*
- * Nfs abort op, called after namei() when a CREATE/DELETE isn't actually
- * done. Currently nothing to do.
- */
-/* ARGSUSED */
-int
-nfs_abortop(ap)
-	struct vop_abortop_args /* {
-		struct vnode *a_dvp;
-		struct componentname *a_cnp;
-	} */ *ap;
-{
-
-	if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
-		zfree(namei_zone, ap->a_cnp->cn_pnbuf);
-	return (0);
-}
diff --git a/sys/nfsclient/nfs_vnops.c b/sys/nfsclient/nfs_vnops.c
index 7774b8b..4097d96 100644
--- a/sys/nfsclient/nfs_vnops.c
+++ b/sys/nfsclient/nfs_vnops.c
@@ -138,7 +138,6 @@ static int	nfs_bwrite __P((struct vop_bwrite_args *));
 vop_t **nfsv2_vnodeop_p;
 static struct vnodeopv_entry_desc nfsv2_vnodeop_entries[] = {
 	{ &vop_default_desc,		(vop_t *) vop_defaultop },
-	{ &vop_abortop_desc,		(vop_t *) nfs_abortop },
 	{ &vop_access_desc,		(vop_t *) nfs_access },
 	{ &vop_advlock_desc,		(vop_t *) nfs_advlock },
 	{ &vop_bmap_desc,		(vop_t *) nfs_bmap },
@@ -1249,11 +1248,9 @@ nfs_mknodrpc(dvp, vpp, cnp, vap)
 	else if (vap->va_type == VFIFO || vap->va_type == VSOCK)
 		rdev = nfs_xdrneg1;
 	else {
-		VOP_ABORTOP(dvp, cnp);
 		return (EOPNOTSUPP);
 	}
 	if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_proc)) != 0) {
-		VOP_ABORTOP(dvp, cnp);
 		return (error);
 	}
 	nfsstats.rpccnt[NFSPROC_MKNOD]++;
@@ -1304,7 +1301,6 @@ nfs_mknodrpc(dvp, vpp, cnp, vap)
 			cache_enter(dvp, newvp, cnp);
 		*vpp = newvp;
 	}
-	zfree(namei_zone, cnp->cn_pnbuf);
 	VTONFS(dvp)->n_flag |= NMODIFIED;
 	if (!wccflag)
 		VTONFS(dvp)->n_attrstamp = 0;
@@ -1363,7 +1359,6 @@ nfs_create(ap)
 		return (nfs_mknodrpc(dvp, ap->a_vpp, cnp, vap));
 
 	if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_proc)) != 0) {
-		VOP_ABORTOP(dvp, cnp);
 		return (error);
 	}
 	if (vap->va_vaflags & VA_EXCLUSIVE)
@@ -1430,8 +1425,6 @@ again:
 			cache_enter(dvp, newvp, cnp);
 		*ap->a_vpp = newvp;
 	}
-	if (error || (cnp->cn_flags & SAVESTART) == 0)
-		zfree(namei_zone, cnp->cn_pnbuf);
 	VTONFS(dvp)->n_flag |= NMODIFIED;
 	if (!wccflag)
 		VTONFS(dvp)->n_attrstamp = 0;
@@ -1503,7 +1496,6 @@ nfs_remove(ap)
 			error = 0;
 	} else if (!np->n_sillyrename)
 		error = nfs_sillyrename(dvp, vp, cnp);
-	zfree(namei_zone, cnp->cn_pnbuf);
 	np->n_attrstamp = 0;
 	return (error);
 }
@@ -1623,14 +1615,12 @@ nfs_rename(ap)
 	}
 
 out:
-	VOP_ABORTOP(tdvp, tcnp);
 	if (tdvp == tvp)
 		vrele(tdvp);
 	else
 		vput(tdvp);
 	if (tvp)
 		vput(tvp);
-	VOP_ABORTOP(fdvp, fcnp);
 	vrele(fdvp);
 	vrele(fvp);
 	/*
@@ -1722,7 +1712,6 @@ nfs_link(ap)
 	int v3;
 
 	if (vp->v_mount != tdvp->v_mount) {
-		VOP_ABORTOP(tdvp, cnp);
 		return (EXDEV);
 	}
 
@@ -1746,7 +1735,6 @@ nfs_link(ap)
 		nfsm_wcc_data(tdvp, wccflag);
 	}
 	nfsm_reqdone;
-	zfree(namei_zone, cnp->cn_pnbuf);
 	VTONFS(tdvp)->n_flag |= NMODIFIED;
 	if (!attrflag)
 		VTONFS(vp)->n_attrstamp = 0;
@@ -1856,12 +1844,6 @@ nfs_symlink(ap)
 	VTONFS(dvp)->n_flag |= NMODIFIED;
 	if (!wccflag)
 		VTONFS(dvp)->n_attrstamp = 0;
-	/*
-	 * cnp's buffer expected to be freed if SAVESTART not set or
-	 * if an error was returned.
-	 */
-	if (error || (cnp->cn_flags & SAVESTART) == 0)
-		zfree(namei_zone, cnp->cn_pnbuf);
 	return (error);
 }
 
@@ -1895,7 +1877,6 @@ nfs_mkdir(ap)
 	int v3 = NFS_ISV3(dvp);
 
 	if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_proc)) != 0) {
-		VOP_ABORTOP(dvp, cnp);
 		return (error);
 	}
 	len = cnp->cn_namelen;
@@ -1946,8 +1927,6 @@ nfs_mkdir(ap)
 			vrele(newvp);
 	} else
 		*ap->a_vpp = newvp;
-	if (error || (cnp->cn_flags & SAVESTART) == 0)
-		zfree(namei_zone, cnp->cn_pnbuf);
 	return (error);
 }
 
@@ -1984,7 +1963,6 @@ nfs_rmdir(ap)
 	if (v3)
 		nfsm_wcc_data(dvp, wccflag);
 	nfsm_reqdone;
-	zfree(namei_zone, cnp->cn_pnbuf);
 	VTONFS(dvp)->n_flag |= NMODIFIED;
 	if (!wccflag)
 		VTONFS(dvp)->n_attrstamp = 0;
diff --git a/sys/nfsclient/nfsnode.h b/sys/nfsclient/nfsnode.h
index 1ca4529..e654bc0 100644
--- a/sys/nfsclient/nfsnode.h
+++ b/sys/nfsclient/nfsnode.h
@@ -194,7 +194,6 @@ int	nfs_getpages __P((struct vop_getpages_args *));
 int	nfs_putpages __P((struct vop_putpages_args *));
 int	nfs_write __P((struct vop_write_args *));
 int	nqnfs_vop_lease_check __P((struct vop_lease_args *));
-int	nfs_abortop __P((struct vop_abortop_args *));
 int	nfs_inactive __P((struct vop_inactive_args *));
 int	nfs_reclaim __P((struct vop_reclaim_args *));
 
diff --git a/sys/nfsserver/nfs_serv.c b/sys/nfsserver/nfs_serv.c
index ffaeea7..405e437 100644
--- a/sys/nfsserver/nfs_serv.c
+++ b/sys/nfsserver/nfs_serv.c
@@ -61,21 +61,13 @@
  *	and note that nfsm_*() macros can terminate a procedure on certain
  *	errors.
  *
- *	VOP_ABORTOP() only frees the path component if HASBUF is set and
- *	SAVESTART is *not* set.
- *
- *	Various VOP_*() routines tend to free the path component if an 
- *	error occurs.  If no error occurs, the VOP_*() routines only free
- *	the path component if SAVESTART is NOT set.
- *
  *	lookup() and namei()
  *	may return garbage in various structural fields/return elements
  *	if an error is returned, and may garbage up nd.ni_dvp even if no
  *	error is returned and you did not request LOCKPARENT or WANTPARENT.
  *
  *	We use the ni_cnd.cn_flags 'HASBUF' flag to track whether the name
- *	buffer has been freed or not.  This is unique to nfs_serv.c for
- *	the moment, the rest of the system sets HASBUF but never clears it.
+ *	buffer has been freed or not.
  */
 
 #include <sys/param.h>
@@ -604,8 +596,7 @@ nfsrv_lookup(nfsd, slp, procp, mrq)
 	 */
 	vrele(ndp->ni_startdir);
 	ndp->ni_startdir = NULL;
-	zfree(namei_zone, nd.ni_cnd.cn_pnbuf);
-	nd.ni_cnd.cn_flags &= ~HASBUF;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 
 	/*
 	 * Get underlying attribute, then release remaining resources ( for
@@ -638,8 +629,7 @@ nfsrv_lookup(nfsd, slp, procp, mrq)
 nfsmout:
 	if (dirp)
 		vrele(dirp);
-	if (nd.ni_cnd.cn_flags & HASBUF)
-		zfree(namei_zone, nd.ni_cnd.cn_pnbuf);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (ndp->ni_startdir)
 		vrele(ndp->ni_startdir);
 	if (ndp->ni_vp)
@@ -1736,9 +1726,9 @@ nfsrv_create(nfsd, slp, procp, mrq)
 		if (vap->va_type == VREG || vap->va_type == VSOCK) {
 			nqsrv_getl(nd.ni_dvp, ND_WRITE);
 			error = VOP_CREATE(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, vap);
-			if (error) {
-				nd.ni_cnd.cn_flags &= ~HASBUF;
-			} else {
+			if (error)
+				NDFREE(&nd, NDF_ONLY_PNBUF);
+			else {
 			    	nfsrv_object_create(nd.ni_vp);
 				if (exclusive_flag) {
 					exclusive_flag = 0;
@@ -1769,7 +1759,7 @@ nfsrv_create(nfsd, slp, procp, mrq)
 
 			error = VOP_MKNOD(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, vap);
 			if (error) {
-				nd.ni_cnd.cn_flags &= ~HASBUF;
+				NDFREE(&nd, NDF_ONLY_PNBUF);
 				goto nfsmreply0;
 			}
 			vput(nd.ni_vp);
@@ -1864,15 +1854,7 @@ nfsmout:
 	}
 	if (dirp)
 		vrele(dirp);
-	if (nd.ni_cnd.cn_flags & HASBUF) {
-		/*
-		 * Since SAVESTART is set, we own the buffer and need to
-		 * zfree it ourselves.
-		 */
-		if (nd.ni_dvp)
-			VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
-		zfree(namei_zone, nd.ni_cnd.cn_pnbuf);
-	}
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (nd.ni_dvp) {
 		if (nd.ni_dvp == nd.ni_vp)
 			vrele(nd.ni_dvp);
@@ -1970,7 +1952,7 @@ nfsrv_mknod(nfsd, slp, procp, mrq)
 		nqsrv_getl(nd.ni_dvp, ND_WRITE);
 		error = VOP_CREATE(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, vap);
 		if (error)
-			nd.ni_cnd.cn_flags &= ~HASBUF;
+			NDFREE(&nd, NDF_ONLY_PNBUF);
 	} else {
 		if (vtyp != VFIFO && (error = suser_xxx(cred, 0, 0)))
 			goto out;
@@ -1978,7 +1960,7 @@ nfsrv_mknod(nfsd, slp, procp, mrq)
 
 		error = VOP_MKNOD(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, vap);
 		if (error) {
-			nd.ni_cnd.cn_flags &= ~HASBUF;
+			NDFREE(&nd, NDF_ONLY_PNBUF);
 			goto out;
 		}
 		vput(nd.ni_vp);
@@ -2012,16 +1994,7 @@ out:
 		vrele(nd.ni_startdir);
 		nd.ni_startdir = NULL;
 	}
-	if (nd.ni_cnd.cn_flags & HASBUF) {
-		/*
-		 * Since SAVESTART is set, we own the buffer and need to
-		 * zfree it ourselves.
-		 */
-		if (nd.ni_dvp)
-			VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
-		nd.ni_cnd.cn_flags &= ~HASBUF;
-		zfree(namei_zone, nd.ni_cnd.cn_pnbuf);
-	}
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (nd.ni_dvp) {
 		if (nd.ni_dvp == nd.ni_vp)
 			vrele(nd.ni_dvp);
@@ -2057,15 +2030,7 @@ nfsmout:
 		vrele(dirp);
 	if (nd.ni_startdir)
 		vrele(nd.ni_startdir);
-	if (nd.ni_cnd.cn_flags & HASBUF) {
-		/*
-		 * Since SAVESTART is set, we own the buffer and need to
-		 * zfree it ourselves.
-		 */
-		if (nd.ni_dvp)
-			VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
-		zfree(namei_zone, nd.ni_cnd.cn_pnbuf);
-	}
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (nd.ni_dvp) {
 		if (nd.ni_dvp == nd.ni_vp)
 			vrele(nd.ni_dvp);
@@ -2143,7 +2108,7 @@ out:
 			nqsrv_getl(nd.ni_dvp, ND_WRITE);
 			nqsrv_getl(nd.ni_vp, ND_WRITE);
 			error = VOP_REMOVE(nd.ni_dvp, nd.ni_vp, &nd.ni_cnd);
-			nd.ni_cnd.cn_flags &= ~HASBUF;
+			NDFREE(&nd, NDF_ONLY_PNBUF);
 		}
 	}
 	if (dirp && v3) {
@@ -2157,14 +2122,7 @@ out:
 		error = 0;
 	}
 nfsmout:
-	if (nd.ni_cnd.cn_flags & HASBUF) {
-		/*
-		 * Since SAVESTART is not set, this is sufficient to free
-		 * the component buffer.  It's actually a NOP since we
-		 * do not save the name, but what the hey.
-		 */
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
-	}
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (nd.ni_dvp) {
 		if (nd.ni_dvp == nd.ni_vp)
 			vrele(nd.ni_dvp);
@@ -2327,11 +2285,6 @@ nfsrv_rename(nfsd, slp, procp, mrq)
 out:
 	if (!error) {
 		/*
-		 * Do rename.  If an error occured, the underlying path
-		 * components are freed by the VOP routine.  If no error
-		 * occured, the SAVESTART flag prevents them from being
-		 * freed.
-		 *
 		 * The VOP_RENAME function releases all vnode references &
 		 * locks prior to returning so we need to clear the pointers
 		 * to bypass cleanup code later on.
@@ -2378,15 +2331,7 @@ nfsmout:
 		vrele(tdirp);
 	if (tond.ni_startdir)
 		vrele(tond.ni_startdir);
-	if (tond.ni_cnd.cn_flags & HASBUF) {
-		/*
-		 * The VOP_ABORTOP is probably a NOP.  Since we have set
-		 * SAVESTART, we need to zfree the buffer ourselves.
-		 */
-		if (tond.ni_dvp)
-			VOP_ABORTOP(tond.ni_dvp, &tond.ni_cnd);
-		zfree(namei_zone, tond.ni_cnd.cn_pnbuf);
-	}
+	NDFREE(&tond, NDF_ONLY_PNBUF);
 	if (tond.ni_dvp) {
 		if (tond.ni_dvp == tond.ni_vp)
 			vrele(tond.ni_dvp);
@@ -2403,11 +2348,7 @@ nfsmout:
 		vrele(fdirp);
 	if (fromnd.ni_startdir)
 		vrele(fromnd.ni_startdir);
-	if (fromnd.ni_cnd.cn_flags & HASBUF) {
-		if (fromnd.ni_dvp)
-			VOP_ABORTOP(fromnd.ni_dvp, &fromnd.ni_cnd);
-		zfree(namei_zone, fromnd.ni_cnd.cn_pnbuf);
-	}
+	NDFREE(&fromnd, NDF_ONLY_PNBUF);
 	if (fromnd.ni_dvp)
 		vrele(fromnd.ni_dvp);
 	if (fromnd.ni_vp)
@@ -2494,15 +2435,10 @@ nfsrv_link(nfsd, slp, procp, mrq)
 		error = EXDEV;
 out:
 	if (!error) {
-		/*
-		 * Do the link op.  Since SAVESTART is not set, the 
-		 * underlying path component is freed whether an error
-		 * is returned or not.
-		 */
 		nqsrv_getl(vp, ND_WRITE);
 		nqsrv_getl(xp, ND_WRITE);
 		error = VOP_LINK(nd.ni_dvp, vp, &nd.ni_cnd);
-		nd.ni_cnd.cn_flags &= ~HASBUF;
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 	}
 	/* fall through */
 
@@ -2520,14 +2456,7 @@ out1:
 	/* fall through */
 
 nfsmout:
-	if (nd.ni_cnd.cn_flags & HASBUF) {
-		/*
-		 * Since we are not using SAVESTART,
-		 * VOP_ABORTOP is sufficient to free the path component
-		 */
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
-		/* zfree(namei_zone, nd.ni_cnd.cn_pnbuf); */
-	}
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (dirp)
 		vrele(dirp);
 	if (vp)
@@ -2629,7 +2558,7 @@ nfsrv_symlink(nfsd, slp, procp, mrq)
 	nqsrv_getl(nd.ni_dvp, ND_WRITE);
 	error = VOP_SYMLINK(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, vap, pathcp);
 	if (error)
-		nd.ni_cnd.cn_flags &= ~HASBUF;
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 	else {
 		vput(nd.ni_vp);
 		nd.ni_vp = NULL;
@@ -2700,15 +2629,7 @@ out:
 	/* fall through */
 
 nfsmout:
-	if (nd.ni_cnd.cn_flags & HASBUF) {
-		/*
-		 * Since SAVESTART is set, we own the buffer and need to
-		 * zfree it ourselves.
-		 */
-		if (nd.ni_dvp)
-			VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
-		zfree(namei_zone, nd.ni_cnd.cn_pnbuf);
-	}
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (nd.ni_dvp) {
 		if (nd.ni_dvp == nd.ni_vp)
 			vrele(nd.ni_dvp);
@@ -2801,12 +2722,7 @@ nfsrv_mkdir(nfsd, slp, procp, mrq)
 
 	vap->va_type = VDIR;
 	if (nd.ni_vp != NULL) {
-		/*
-		 * Freeup path component.  Since SAVESTART was not set,
-		 * VOP_ABORTOP() will handle it.
-		 */
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
-		nd.ni_cnd.cn_flags &= ~HASBUF;
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 		error = EEXIST;
 		goto out;
 	}
@@ -2818,7 +2734,7 @@ nfsrv_mkdir(nfsd, slp, procp, mrq)
 	 */
 	nqsrv_getl(nd.ni_dvp, ND_WRITE);
 	error = VOP_MKDIR(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, vap);
-	nd.ni_cnd.cn_flags &= ~HASBUF;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vpexcl = 1;
 
 	vput(nd.ni_dvp);
@@ -2853,12 +2769,7 @@ nfsmout:
 	if (dirp)
 		vrele(dirp);
 	if (nd.ni_dvp) {
-		/*
-		 * Since SAVESTART is not set, VOP_ABORTOP will always free
-		 * the path component.
-		 */
-		if (nd.ni_cnd.cn_flags & HASBUF)
-			VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 		if (nd.ni_dvp == nd.ni_vp && vpexcl)
 			vrele(nd.ni_dvp);
 		else
@@ -2953,10 +2864,8 @@ out:
 		nqsrv_getl(nd.ni_dvp, ND_WRITE);
 		nqsrv_getl(vp, ND_WRITE);
 		error = VOP_RMDIR(nd.ni_dvp, nd.ni_vp, &nd.ni_cnd);
-	} else {
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
 	}
-	nd.ni_cnd.cn_flags &= ~HASBUF;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 
 	if (dirp)
 		diraft_ret = VOP_GETATTR(dirp, &diraft, cred, procp);
@@ -2968,12 +2877,7 @@ out:
 	/* fall through */
 
 nfsmout:
-	/*
-	 * Since SAVESTART is not set, a VOP_ABORTOP is sufficient to
-	 * deal with the pathname component.
-	 */
-	if (nd.ni_cnd.cn_flags & HASBUF)
-		VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (dirp)
 		vrele(dirp);
 	if (nd.ni_dvp) {
diff --git a/sys/nfsserver/nfs_syscalls.c b/sys/nfsserver/nfs_syscalls.c
index cd4b351..7519e68 100644
--- a/sys/nfsserver/nfs_syscalls.c
+++ b/sys/nfsserver/nfs_syscalls.c
@@ -55,6 +55,7 @@
 #include <sys/domain.h>
 #include <sys/protosw.h>
 #include <sys/namei.h>
+#include <vm/vm_zone.h>
 
 #include <netinet/in.h>
 #include <netinet/tcp.h>
@@ -179,6 +180,7 @@ nfssvc(p, uap)
 		error = namei(&nd);
 		if (error)
 			return (error);
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 		if ((nd.ni_vp->v_flag & VROOT) == 0)
 			error = EINVAL;
 		nmp = VFSTONFS(nd.ni_vp->v_mount);
diff --git a/sys/ntfs/ntfs_vfsops.c b/sys/ntfs/ntfs_vfsops.c
index 9ad0775..6bc0555 100644
--- a/sys/ntfs/ntfs_vfsops.c
+++ b/sys/ntfs/ntfs_vfsops.c
@@ -53,6 +53,7 @@
 #include <vm/vm_page.h>
 #include <vm/vm_object.h>
 #include <vm/vm_extern.h>
+#include <vm/vm_zone.h>
 
 #if defined(__NetBSD__)
 #include <miscfs/specfs/specdev.h>
@@ -316,7 +317,7 @@ ntfs_mount (
 		/* can't get devvp!*/
 		goto error_1;
 	}
-
+	NDFREE(ndp, NDF_ONLY_PNBUF);
 	devvp = ndp->ni_vp;
 
 #if defined(__FreeBSD__)
diff --git a/sys/nwfs/nwfs_vnops.c b/sys/nwfs/nwfs_vnops.c
index 29d7a82..22df1b3 100644
--- a/sys/nwfs/nwfs_vnops.c
+++ b/sys/nwfs/nwfs_vnops.c
@@ -77,7 +77,6 @@ static int nwfs_mkdir __P((struct vop_mkdir_args *));
 static int nwfs_rmdir __P((struct vop_rmdir_args *));
 static int nwfs_symlink __P((struct vop_symlink_args *));
 static int nwfs_readdir __P((struct vop_readdir_args *));
-static int nwfs_abortop __P((struct vop_abortop_args *));
 static int nwfs_bmap __P((struct vop_bmap_args *));
 static int nwfs_strategy __P((struct vop_strategy_args *));
 static int nwfs_print __P((struct vop_print_args *));
@@ -87,7 +86,6 @@ static int nwfs_pathconf __P((struct vop_pathconf_args *ap));
 vop_t **nwfs_vnodeop_p;
 static struct vnodeopv_entry_desc nwfs_vnodeop_entries[] = {
 	{ &vop_default_desc,		(vop_t *) vop_defaultop },
-	{ &vop_abortop_desc,		(vop_t *) nwfs_abortop },
 	{ &vop_access_desc,		(vop_t *) nwfs_access },
 	{ &vop_bmap_desc,		(vop_t *) nwfs_bmap },
 	{ &vop_open_desc,		(vop_t *) nwfs_open },
@@ -453,7 +451,6 @@ nwfs_create(ap)
 	if (vap->va_type == VSOCK)
 		return (EOPNOTSUPP);
 	if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_proc))) {
-		VOP_ABORTOP(dvp, cnp);
 		return (error);
 	}
 	fmode = AR_READ | AR_WRITE;
@@ -476,7 +473,6 @@ nwfs_create(ap)
 		if (cnp->cn_flags & MAKEENTRY)
 			cache_enter(dvp, vp, cnp);
 	}
-	zfree(namei_zone, cnp->cn_pnbuf);
 	return (error);
 }
 
@@ -510,7 +506,6 @@ nwfs_remove(ap)
 		    cnp->cn_namelen,cnp->cn_nameptr,cnp->cn_proc,cnp->cn_cred);
 		if (error == 0x899c) error = EACCES;
 	}
-	zfree(namei_zone, cnp->cn_pnbuf);
 	return (error);
 }
 
@@ -604,9 +599,7 @@ out:
 
 /*
  * nwfs hard link create call
- * Netware filesystems don't know what links are. But since we already called
- * nwfs_lookup() with create and lockparent, the parent is locked so we
- * have to free it before we return the error.
+ * Netware filesystems don't know what links are.
  */
 static int
 nwfs_link(ap)
@@ -616,8 +609,6 @@ nwfs_link(ap)
 		struct componentname *a_cnp;
 	} */ *ap;
 {
-/*	VOP_ABORTOP(ap->a_tdvp, ap->a_cnp);*/
-	zfree(namei_zone, ap->a_cnp->cn_pnbuf);
 	return EOPNOTSUPP;
 }
 
@@ -635,8 +626,6 @@ nwfs_symlink(ap)
 		char *a_target;
 	} */ *ap;
 {
-	zfree(namei_zone, ap->a_cnp->cn_pnbuf);
-	/* VOP_ABORTOP(ap->a_dvp, ap->a_cnp); ??? */
 	return (EOPNOTSUPP);
 }
 
@@ -672,11 +661,9 @@ nwfs_mkdir(ap)
 	char *name=cnp->cn_nameptr;
 
 	if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_proc))) {
-		VOP_ABORTOP(dvp, cnp);
 		return (error);
 	}	
 	if ((name[0] == '.') && ((len == 1) || ((len == 2) && (name[1] == '.')))) {
-		VOP_ABORTOP(dvp, cnp);
 		return EEXIST;
 	}
 	if (ncp_open_create_file_or_subdir(VTONWFS(dvp),dvp, cnp->cn_namelen,
@@ -696,7 +683,6 @@ nwfs_mkdir(ap)
 			*ap->a_vpp = newvp;
 		}
 	}
-	zfree(namei_zone, cnp->cn_pnbuf);
 	return (error);
 }
 
@@ -724,7 +710,6 @@ nwfs_rmdir(ap)
 	error = ncp_DeleteNSEntry(nmp, dnp->n_fid.f_id, 
 		cnp->cn_namelen, cnp->cn_nameptr,cnp->cn_proc,cnp->cn_cred);
 	if (error == NWE_DIR_NOT_EMPTY) error = ENOTEMPTY;
-	zfree(namei_zone, cnp->cn_pnbuf);
 	dnp->n_flag |= NMODIFIED;
 	nwfs_attr_cacheremove(dvp);
 	cache_purge(dvp);
@@ -864,23 +849,6 @@ nwfs_bmap(ap)
 		*ap->a_runb = 0;
 	return (0);
 }
-/*
- * nwfs abort op, called after namei() when a CREATE/DELETE isn't actually
- * done. Currently nothing to do.
- */
-/* ARGSUSED */
-int
-nwfs_abortop(ap)
-	struct vop_abortop_args /* {
-		struct vnode *a_dvp;
-		struct componentname *a_cnp;
-	} */ *ap;
-{
-
-	if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
-		zfree(namei_zone, ap->a_cnp->cn_pnbuf);
-	return (0);
-}
 
 int
 nwfs_nget(struct mount *mp, ncpfid fid, struct nw_entry_info *fap,
diff --git a/sys/svr4/svr4_misc.c b/sys/svr4/svr4_misc.c
index 2abacee..6399049 100644
--- a/sys/svr4/svr4_misc.c
+++ b/sys/svr4/svr4_misc.c
@@ -1650,7 +1650,7 @@ svr4_sys_resolvepath(p, uap)
 	*retval = strlen(nd.ni_cnd.cn_pnbuf) < SCARG(uap, bufsiz) ? 
 	  strlen(nd.ni_cnd.cn_pnbuf) + 1 : SCARG(uap, bufsiz);
 bad:
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vput(nd.ni_vp);
-	zfree(namei_zone, nd.ni_cnd.cn_pnbuf);
 	return error;
 }
diff --git a/sys/svr4/svr4_sysvec.c b/sys/svr4/svr4_sysvec.c
index f88b7d1..fbd4212 100644
--- a/sys/svr4/svr4_sysvec.c
+++ b/sys/svr4/svr4_sysvec.c
@@ -296,6 +296,7 @@ svr4_emul_find(p, sgp, prefix, path, pbuf, cflag)
 			free(buf, M_TEMP);
 			return error;
 		}
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 
 		*cp = '/';
 	}
@@ -306,6 +307,7 @@ svr4_emul_find(p, sgp, prefix, path, pbuf, cflag)
 			free(buf, M_TEMP);
 			return error;
 		}
+		NDFREE(&nd, NDF_ONLY_PNBUF);
 
 		/*
 		 * We now compare the vnode of the svr4_root to the one
@@ -324,6 +326,7 @@ svr4_emul_find(p, sgp, prefix, path, pbuf, cflag)
 			vrele(nd.ni_vp);
 			return error;
 		}
+		NDFREE(&ndroot, NDF_ONLY_PNBUF);
 
 		if ((error = VOP_GETATTR(nd.ni_vp, &vat, p->p_ucred, p)) != 0) {
 			goto done;
diff --git a/sys/sys/namei.h b/sys/sys/namei.h
index 79ad5f3..854d779 100644
--- a/sys/sys/namei.h
+++ b/sys/sys/namei.h
@@ -144,13 +144,62 @@ struct nameidata {
 /*
  * Initialization of an nameidata structure.
  */
-#define NDINIT(ndp, op, flags, segflg, namep, p) { \
-	(ndp)->ni_cnd.cn_nameiop = op; \
-	(ndp)->ni_cnd.cn_flags = flags; \
-	(ndp)->ni_segflg = segflg; \
-	(ndp)->ni_dirp = namep; \
-	(ndp)->ni_cnd.cn_proc = p; \
+static void NDINIT __P((struct nameidata *, u_long, u_long, enum uio_seg,
+	    const char *, struct proc *));
+static __inline void
+NDINIT(ndp, op, flags, segflg, namep, p)
+	struct nameidata *ndp;
+	u_long op, flags;
+	enum uio_seg segflg;
+	const char *namep;
+	struct proc *p;
+{
+	ndp->ni_cnd.cn_nameiop = op;
+	ndp->ni_cnd.cn_flags = flags;
+	ndp->ni_segflg = segflg;
+	ndp->ni_dirp = namep;
+	ndp->ni_cnd.cn_proc = p;
 }
+
+#define NDF_NO_DVP_RELE		0x00000001
+#define NDF_NO_DVP_UNLOCK	0x00000002
+#define NDF_NO_DVP_PUT		0x00000003
+#define NDF_NO_VP_RELE		0x00000004
+#define NDF_NO_VP_UNLOCK	0x00000008
+#define NDF_NO_VP_PUT		0x0000000c
+#define NDF_NO_STARTDIR_RELE	0x00000010
+#define NDF_NO_FREE_PNBUF	0x00000020
+#define NDF_ONLY_PNBUF		(~NDF_NO_FREE_PNBUF)
+
+#define NDFREE(ndp, flags) do {						\
+	struct nameidata *_ndp = (ndp);					\
+	unsigned int _flags = (flags);					\
+									\
+	if (!(_flags & NDF_NO_FREE_PNBUF) &&				\
+	    (_ndp->ni_cnd.cn_flags & HASBUF)) {				\
+		zfree(namei_zone, _ndp->ni_cnd.cn_pnbuf);		\
+		_ndp->ni_cnd.cn_flags &= ~HASBUF;			\
+	}								\
+	if (!(_flags & NDF_NO_DVP_UNLOCK) &&				\
+	    (_ndp->ni_cnd.cn_flags & LOCKPARENT))			\
+		VOP_UNLOCK(_ndp->ni_dvp, 0, _ndp->ni_cnd.cn_proc);	\
+	if (!(_flags & NDF_NO_DVP_RELE) &&				\
+	    (_ndp->ni_cnd.cn_flags & (LOCKPARENT|WANTPARENT))) {	\
+		vrele(_ndp->ni_dvp);					\
+		_ndp->ni_dvp = NULL;					\
+	}								\
+	if (!(_flags & NDF_NO_VP_RELE) &&				\
+	    _ndp->ni_vp) {						\
+		vrele(_ndp->ni_vp);					\
+		_ndp->ni_vp = NULL;					\
+	}								\
+	if (!(_flags & NDF_NO_STARTDIR_RELE) &&				\
+	    (_ndp->ni_cnd.cn_flags & SAVESTART)) {			\
+		vrele(_ndp->ni_startdir);				\
+		_ndp->ni_startdir = NULL;				\
+	}								\
+} while (0)
+
 #endif
 
 #ifdef KERNEL
diff --git a/sys/ufs/ffs/ffs_vfsops.c b/sys/ufs/ffs/ffs_vfsops.c
index 3652f54..216bb45 100644
--- a/sys/ufs/ffs/ffs_vfsops.c
+++ b/sys/ufs/ffs/ffs_vfsops.c
@@ -59,6 +59,7 @@
 
 #include <vm/vm.h>
 #include <vm/vm_page.h>
+#include <vm/vm_zone.h>
 
 static MALLOC_DEFINE(M_FFSNODE, "FFS node", "FFS vnode private part");
 
@@ -272,6 +273,7 @@ ffs_mount( mp, path, data, ndp, p)
 		goto error_1;
 	}
 
+	NDFREE(ndp, NDF_ONLY_PNBUF);
 	devvp = ndp->ni_vp;
 
 	if (!vn_isdisk(devvp)) {
diff --git a/sys/ufs/ufs/ufs_quota.c b/sys/ufs/ufs/ufs_quota.c
index e1b5b5d..c9865f5 100644
--- a/sys/ufs/ufs/ufs_quota.c
+++ b/sys/ufs/ufs/ufs_quota.c
@@ -46,6 +46,7 @@
 #include <sys/proc.h>
 #include <sys/vnode.h>
 #include <sys/mount.h>
+#include <vm/vm_zone.h>
 
 #include <ufs/ufs/quota.h>
 #include <ufs/ufs/inode.h>
@@ -390,6 +391,7 @@ quotaon(p, mp, type, fname)
 	error = vn_open(&nd, FREAD|FWRITE, 0);
 	if (error)
 		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vp = nd.ni_vp;
 	VOP_UNLOCK(vp, 0, p);
 	if (vp->v_type != VREG) {
diff --git a/sys/ufs/ufs/ufs_vnops.c b/sys/ufs/ufs/ufs_vnops.c
index 437b4f5..9adae8c 100644
--- a/sys/ufs/ufs/ufs_vnops.c
+++ b/sys/ufs/ufs/ufs_vnops.c
@@ -71,7 +71,6 @@
 #include <ufs/ufs/ufsmount.h>
 #include <ufs/ufs/ufs_extern.h>
 
-static int ufs_abortop __P((struct vop_abortop_args *));
 static int ufs_access __P((struct vop_access_args *));
 static int ufs_advlock __P((struct vop_advlock_args *));
 static int ufs_chmod __P((struct vnode *, int, struct ucred *, struct proc *));
@@ -736,22 +735,18 @@ ufs_link(ap)
 		panic("ufs_link: no name");
 #endif
 	if (tdvp->v_mount != vp->v_mount) {
-		VOP_ABORTOP(tdvp, cnp);
 		error = EXDEV;
 		goto out2;
 	}
 	if (tdvp != vp && (error = vn_lock(vp, LK_EXCLUSIVE, p))) {
-		VOP_ABORTOP(tdvp, cnp);
 		goto out2;
 	}
 	ip = VTOI(vp);
 	if ((nlink_t)ip->i_nlink >= LINK_MAX) {
-		VOP_ABORTOP(tdvp, cnp);
 		error = EMLINK;
 		goto out1;
 	}
 	if (ip->i_flags & (IMMUTABLE | APPEND)) {
-		VOP_ABORTOP(tdvp, cnp);
 		error = EPERM;
 		goto out1;
 	}
@@ -771,7 +766,6 @@ ufs_link(ap)
 		ip->i_nlink--;
 		ip->i_flag |= IN_CHANGE;
 	}
-	zfree(namei_zone, cnp->cn_pnbuf);
 out1:
 	if (tdvp != vp)
 		VOP_UNLOCK(vp, 0, p);
@@ -833,10 +827,6 @@ ufs_whiteout(ap)
 	default:
 		panic("ufs_whiteout: unknown op");
 	}
-	if (cnp->cn_flags & HASBUF) {
-		zfree(namei_zone, cnp->cn_pnbuf);
-		cnp->cn_flags &= ~HASBUF;
-	}
 	return (error);
 }
 
@@ -899,14 +889,12 @@ ufs_rename(ap)
 	    (tvp && (fvp->v_mount != tvp->v_mount))) {
 		error = EXDEV;
 abortit:
-		VOP_ABORTOP(tdvp, tcnp);
 		if (tdvp == tvp)
 			vrele(tdvp);
 		else
 			vput(tdvp);
 		if (tvp)
 			vput(tvp);
-		VOP_ABORTOP(fdvp, fcnp);
 		vrele(fdvp);
 		vrele(fvp);
 		return (error);
@@ -940,7 +928,6 @@ abortit:
 		}
 
 		/* Release destination completely. */
-		VOP_ABORTOP(tdvp, tcnp);
 		vput(tdvp);
 		vput(tvp);
 
@@ -1349,7 +1336,6 @@ ufs_mkdir(ap)
 #ifdef QUOTA
 		if ((error = getinoquota(ip)) ||
 	    	    (error = chkiq(ip, 1, ucp, 0))) {
-			zfree(namei_zone, cnp->cn_pnbuf);
 			UFS_VFREE(tvp, ip->i_number, dmode);
 			vput(tvp);
 			return (error);
@@ -1361,7 +1347,6 @@ ufs_mkdir(ap)
 #ifdef QUOTA
 	if ((error = getinoquota(ip)) ||
 	    (error = chkiq(ip, 1, cnp->cn_cred, 0))) {
-		zfree(namei_zone, cnp->cn_pnbuf);
 		UFS_VFREE(tvp, ip->i_number, dmode);
 		vput(tvp);
 		return (error);
@@ -1465,7 +1450,6 @@ bad:
 		vput(tvp);
 	}
 out:
-	zfree(namei_zone, cnp->cn_pnbuf);
 	return (error);
 }
 
@@ -1733,23 +1717,6 @@ ufs_readlink(ap)
 }
 
 /*
- * Ufs abort op, called after namei() when a CREATE/DELETE isn't actually
- * done. If a buffer has been saved in anticipation of a CREATE, delete it.
- */
-/* ARGSUSED */
-int
-ufs_abortop(ap)
-	struct vop_abortop_args /* {
-		struct vnode *a_dvp;
-		struct componentname *a_cnp;
-	} */ *ap;
-{
-	if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
-		zfree(namei_zone, ap->a_cnp->cn_pnbuf);
-	return (0);
-}
-
-/*
  * Calculate the logical to physical mapping if not done already,
  * then call the device strategy routine.
  *
@@ -2087,10 +2054,8 @@ ufs_makeinode(mode, dvp, vpp, cnp)
 		mode |= IFREG;
 
 	error = UFS_VALLOC(dvp, mode, cnp->cn_cred, &tvp);
-	if (error) {
-		zfree(namei_zone, cnp->cn_pnbuf);
+	if (error)
 		return (error);
-	}
 	ip = VTOI(tvp);
 	ip->i_gid = pdir->i_gid;
 #ifdef SUIDDIR
@@ -2131,7 +2096,6 @@ ufs_makeinode(mode, dvp, vpp, cnp)
 #ifdef QUOTA
 		if ((error = getinoquota(ip)) ||
 	    	    (error = chkiq(ip, 1, ucp, 0))) {
-			zfree(namei_zone, cnp->cn_pnbuf);
 			UFS_VFREE(tvp, ip->i_number, mode);
 			vput(tvp);
 			return (error);
@@ -2143,7 +2107,6 @@ ufs_makeinode(mode, dvp, vpp, cnp)
 #ifdef QUOTA
 	if ((error = getinoquota(ip)) ||
 	    (error = chkiq(ip, 1, cnp->cn_cred, 0))) {
-		zfree(namei_zone, cnp->cn_pnbuf);
 		UFS_VFREE(tvp, ip->i_number, mode);
 		vput(tvp);
 		return (error);
@@ -2174,9 +2137,6 @@ ufs_makeinode(mode, dvp, vpp, cnp)
 	error = ufs_direnter(dvp, tvp, &newdir, cnp, NULL);
 	if (error)
 		goto bad;
-
-	if ((cnp->cn_flags & SAVESTART) == 0)
-		zfree(namei_zone, cnp->cn_pnbuf);
 	*vpp = tvp;
 	return (0);
 
@@ -2185,7 +2145,6 @@ bad:
 	 * Write error occurred trying to update the inode
 	 * or the directory so must deallocate the inode.
 	 */
-	zfree(namei_zone, cnp->cn_pnbuf);
 	ip->i_effnlink = 0;
 	ip->i_nlink = 0;
 	ip->i_flag |= IN_CHANGE;
@@ -2210,7 +2169,6 @@ static struct vnodeopv_entry_desc ufs_vnodeop_entries[] = {
 	{ &vop_read_desc,		(vop_t *) ufs_missingop },
 	{ &vop_reallocblks_desc,	(vop_t *) ufs_missingop },
 	{ &vop_write_desc,		(vop_t *) ufs_missingop },
-	{ &vop_abortop_desc,		(vop_t *) ufs_abortop },
 	{ &vop_access_desc,		(vop_t *) ufs_access },
 	{ &vop_advlock_desc,		(vop_t *) ufs_advlock },
 	{ &vop_bmap_desc,		(vop_t *) ufs_bmap },
diff --git a/sys/vm/vm_swap.c b/sys/vm/vm_swap.c
index 08825b1..9140c1f 100644
--- a/sys/vm/vm_swap.c
+++ b/sys/vm/vm_swap.c
@@ -53,6 +53,7 @@
 #include <vm/vm.h>
 #include <vm/vm_extern.h>
 #include <vm/swap_pager.h>
+#include <vm/vm_zone.h>
 
 /*
  * Indirect driver for multi-controller paging.
@@ -173,6 +174,7 @@ swapon(p, uap)
 	if (error)
 		return (error);
 
+	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vp = nd.ni_vp;
 
 	if (!vn_isdisk(vp))