svn commit: r190888 - in head/sys: cddl/compat/opensolaris/sys cddl/contrib/opensolaris/uts/common/fs/zfs fs/devfs fs/fifofs fs/unionfs kern nfs4client nfsclient sys ufs/ffs

Robert Watson rwatson at FreeBSD.org
Fri Apr 10 10:52:21 UTC 2009


Author: rwatson
Date: Fri Apr 10 10:52:19 2009
New Revision: 190888
URL: http://svn.freebsd.org/changeset/base/190888

Log:
  Remove VOP_LEASE and supporting functions.  This hasn't been used since
  the removal of NQNFS, but was left in in case it was required for NFSv4.
  Since our new NFSv4 client and server can't use it for their
  requirements, GC the old mechanism, as well as other unused lease-
  related code and interfaces.
  
  Due to its impact on kernel programming and binary interfaces, this
  change should not be MFC'd.
  
  Proposed by:    jeff
  Reviewed by:    jeff
  Discussed with: rmacklem, zach loafman @ isilon

Modified:
  head/sys/cddl/compat/opensolaris/sys/vnode.h
  head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
  head/sys/fs/devfs/devfs_vnops.c
  head/sys/fs/fifofs/fifo_vnops.c
  head/sys/fs/unionfs/union_subr.c
  head/sys/fs/unionfs/union_vnops.c
  head/sys/kern/kern_acct.c
  head/sys/kern/kern_alq.c
  head/sys/kern/kern_ktrace.c
  head/sys/kern/kern_sig.c
  head/sys/kern/kern_time.c
  head/sys/kern/uipc_usrreq.c
  head/sys/kern/vfs_acl.c
  head/sys/kern/vfs_default.c
  head/sys/kern/vfs_extattr.c
  head/sys/kern/vfs_syscalls.c
  head/sys/kern/vfs_vnops.c
  head/sys/kern/vnode_if.src
  head/sys/nfs4client/nfs4_vnops.c
  head/sys/nfsclient/nfs_vnops.c
  head/sys/sys/vnode.h
  head/sys/ufs/ffs/ffs_snapshot.c

Modified: head/sys/cddl/compat/opensolaris/sys/vnode.h
==============================================================================
--- head/sys/cddl/compat/opensolaris/sys/vnode.h	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/cddl/compat/opensolaris/sys/vnode.h	Fri Apr 10 10:52:19 2009	(r190888)
@@ -217,7 +217,6 @@ zfs_vn_rdwr(enum uio_rw rw, vnode_t *vp,
 	vfslocked = VFS_LOCK_GIANT(vp->v_mount);
 	if (rw == UIO_WRITE) {
 		ioflag = IO_SYNC;
-		VOP_LEASE(vp, td, td->td_ucred, LEASE_WRITE);
 	} else {
 		ioflag = IO_DIRECT;
 	}

Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c	Fri Apr 10 10:52:19 2009	(r190888)
@@ -4577,7 +4577,6 @@ vop_deleteextattr {
 		ZFS_EXIT(zfsvfs);
 		return (error);
 	}
-	VOP_LEASE(nd.ni_dvp, td, ap->a_cred, LEASE_WRITE);
 	error = VOP_REMOVE(nd.ni_dvp, vp, &nd.ni_cnd);
 
 	vput(nd.ni_dvp);
@@ -4639,7 +4638,6 @@ vop_setextattr {
 		return (error);
 	}
 
-	VOP_LEASE(vp, td, ap->a_cred, LEASE_WRITE);
 	VATTR_NULL(&va);
 	va.va_size = 0;
 	error = VOP_SETATTR(vp, &va, ap->a_cred);

Modified: head/sys/fs/devfs/devfs_vnops.c
==============================================================================
--- head/sys/fs/devfs/devfs_vnops.c	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/fs/devfs/devfs_vnops.c	Fri Apr 10 10:52:19 2009	(r190888)
@@ -1549,7 +1549,6 @@ static struct vop_vector devfs_specops =
 	.vop_create =		VOP_PANIC,
 	.vop_fsync =		devfs_fsync,
 	.vop_getattr =		devfs_getattr,
-	.vop_lease =		VOP_NULL,
 	.vop_link =		VOP_PANIC,
 	.vop_mkdir =		VOP_PANIC,
 	.vop_mknod =		VOP_PANIC,

Modified: head/sys/fs/fifofs/fifo_vnops.c
==============================================================================
--- head/sys/fs/fifofs/fifo_vnops.c	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/fs/fifofs/fifo_vnops.c	Fri Apr 10 10:52:19 2009	(r190888)
@@ -118,7 +118,6 @@ struct vop_vector fifo_specops = {
 	.vop_getattr =		VOP_EBADF,
 	.vop_ioctl =		fifo_ioctl,
 	.vop_kqfilter =		fifo_kqfilter,
-	.vop_lease =		VOP_NULL,
 	.vop_link =		VOP_PANIC,
 	.vop_mkdir =		VOP_PANIC,
 	.vop_mknod =		VOP_PANIC,

Modified: head/sys/fs/unionfs/union_subr.c
==============================================================================
--- head/sys/fs/unionfs/union_subr.c	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/fs/unionfs/union_subr.c	Fri Apr 10 10:52:19 2009	(r190888)
@@ -805,10 +805,6 @@ unionfs_mkshadowdir(struct unionfs_mount
 
 	if ((error = vn_start_write(udvp, &mp, V_WAIT | PCATCH)))
 		goto unionfs_mkshadowdir_free_out;
-	if ((error = VOP_LEASE(udvp, td, cn.cn_cred, LEASE_WRITE))) {
-		vn_finished_write(mp);
-		goto unionfs_mkshadowdir_free_out;
-	}
 	unionfs_create_uppervattr_core(ump, &lva, &va, td);
 
 	error = VOP_MKDIR(udvp, &uvp, &cn, &va);
@@ -874,8 +870,7 @@ unionfs_mkwhiteout(struct vnode *dvp, st
 
 	if ((error = vn_start_write(dvp, &mp, V_WAIT | PCATCH)))
 		goto unionfs_mkwhiteout_free_out;
-	if (!(error = VOP_LEASE(dvp, td, td->td_ucred, LEASE_WRITE)))
-		error = VOP_WHITEOUT(dvp, &cn, CREATE);
+	error = VOP_WHITEOUT(dvp, &cn, CREATE);
 
 	vn_finished_write(mp);
 
@@ -949,9 +944,6 @@ unionfs_vn_create_on_upper(struct vnode 
 		goto unionfs_vn_create_on_upper_free_out1;
 	}
 
-	if ((error = VOP_LEASE(udvp, td, cred, LEASE_WRITE)) != 0)
-		goto unionfs_vn_create_on_upper_free_out1;
-
 	if ((error = VOP_CREATE(udvp, &vp, &cn, uvap)) != 0)
 		goto unionfs_vn_create_on_upper_free_out1;
 
@@ -999,10 +991,6 @@ unionfs_copyfile_core(struct vnode *lvp,
 	uio.uio_segflg = UIO_SYSSPACE;
 	uio.uio_offset = 0;
 
-	if ((error = VOP_LEASE(lvp, td, cred, LEASE_READ)) != 0)
-		return (error);
-	if ((error = VOP_LEASE(uvp, td, cred, LEASE_WRITE)) != 0)
-		return (error);
 	buf = malloc(MAXBSIZE, M_TEMP, M_WAITOK);
 
 	while (error == 0) {

Modified: head/sys/fs/unionfs/union_vnops.c
==============================================================================
--- head/sys/fs/unionfs/union_vnops.c	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/fs/unionfs/union_vnops.c	Fri Apr 10 10:52:19 2009	(r190888)
@@ -902,27 +902,6 @@ unionfs_write(struct vop_write_args *ap)
 }
 
 static int
-unionfs_lease(struct vop_lease_args *ap)
-{
-	int error;
-	struct unionfs_node *unp;
-	struct vnode   *vp;
-
-	UNIONFS_INTERNAL_DEBUG("unionfs_lease: enter\n");
-
-	KASSERT_UNIONFS_VNODE(ap->a_vp);
-
-	unp = VTOUNIONFS(ap->a_vp);
-	vp = (unp->un_uppervp != NULLVP ? unp->un_uppervp : unp->un_lowervp);
-
-	error = VOP_LEASE(vp, ap->a_td, ap->a_cred, ap->a_flag);
-
-	UNIONFS_INTERNAL_DEBUG("unionfs_lease: lease (%d)\n", error);
-
-	return (error);
-}
-
-static int
 unionfs_ioctl(struct vop_ioctl_args *ap)
 {
 	int error;
@@ -947,7 +926,7 @@ unionfs_ioctl(struct vop_ioctl_args *ap)
 	error = VOP_IOCTL(ovp, ap->a_command, ap->a_data, ap->a_fflag,
 	    ap->a_cred, ap->a_td);
 
-	UNIONFS_INTERNAL_DEBUG("unionfs_ioctl: lease (%d)\n", error);
+	UNIONFS_INTERNAL_DEBUG("unionfs_ioctl: leave (%d)\n", error);
 
 	return (error);
 }
@@ -2461,7 +2440,6 @@ struct vop_vector unionfs_vnodeops = {
 	.vop_getwritemount =	unionfs_getwritemount,
 	.vop_inactive =		unionfs_inactive,
 	.vop_ioctl =		unionfs_ioctl,
-	.vop_lease =		unionfs_lease,
 	.vop_link =		unionfs_link,
 	.vop_listextattr =	unionfs_listextattr,
 	.vop_lock1 =		unionfs_lock,

Modified: head/sys/kern/kern_acct.c
==============================================================================
--- head/sys/kern/kern_acct.c	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/kern/kern_acct.c	Fri Apr 10 10:52:19 2009	(r190888)
@@ -436,7 +436,6 @@ acct_process(struct thread *td)
 	 * Write the accounting information to the file.
 	 */
 	vfslocked = VFS_LOCK_GIANT(acct_vp->v_mount);
-	VOP_LEASE(acct_vp, td, acct_cred, LEASE_WRITE);
 	ret = vn_rdwr(UIO_WRITE, acct_vp, (caddr_t)&acct, sizeof (acct),
 	    (off_t)0, UIO_SYSSPACE, IO_APPEND|IO_UNIT, acct_cred, NOCRED,
 	    (int *)0, td);

Modified: head/sys/kern/kern_alq.c
==============================================================================
--- head/sys/kern/kern_alq.c	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/kern/kern_alq.c	Fri Apr 10 10:52:19 2009	(r190888)
@@ -293,7 +293,6 @@ alq_doio(struct alq *alq)
 	vfslocked = VFS_LOCK_GIANT(vp->v_mount);
 	vn_start_write(vp, &mp, V_WAIT);
 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
-	VOP_LEASE(vp, td, alq->aq_cred, LEASE_WRITE);
 	/*
 	 * XXX: VOP_WRITE error checks are ignored.
 	 */

Modified: head/sys/kern/kern_ktrace.c
==============================================================================
--- head/sys/kern/kern_ktrace.c	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/kern/kern_ktrace.c	Fri Apr 10 10:52:19 2009	(r190888)
@@ -992,7 +992,6 @@ ktr_writerequest(struct thread *td, stru
 	vfslocked = VFS_LOCK_GIANT(vp->v_mount);
 	vn_start_write(vp, &mp, V_WAIT);
 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
-	(void)VOP_LEASE(vp, td, cred, LEASE_WRITE);
 #ifdef MAC
 	error = mac_vnode_check_write(cred, NOCRED, vp);
 	if (error == 0)

Modified: head/sys/kern/kern_sig.c
==============================================================================
--- head/sys/kern/kern_sig.c	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/kern/kern_sig.c	Fri Apr 10 10:52:19 2009	(r190888)
@@ -2984,7 +2984,6 @@ restart:
 	if (set_core_nodump_flag)
 		vattr.va_flags = UF_NODUMP;
 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
-	VOP_LEASE(vp, td, cred, LEASE_WRITE);
 	VOP_SETATTR(vp, &vattr, cred);
 	VOP_UNLOCK(vp, 0);
 	vn_finished_write(mp);

Modified: head/sys/kern/kern_time.c
==============================================================================
--- head/sys/kern/kern_time.c	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/kern/kern_time.c	Fri Apr 10 10:52:19 2009	(r190888)
@@ -74,7 +74,6 @@ static uma_zone_t	itimer_zone = NULL;
 
 static int	settime(struct thread *, struct timeval *);
 static void	timevalfix(struct timeval *);
-static void	no_lease_updatetime(int);
 
 static void	itimer_start(void);
 static int	itimer_init(void *, int, int);
@@ -106,14 +105,6 @@ int		itimespecfix(struct timespec *ts);
 SYSINIT(posix_timer, SI_SUB_P1003_1B, SI_ORDER_FIRST+4, itimer_start, NULL);
 
 
-static void 
-no_lease_updatetime(deltat)
-	int deltat;
-{
-}
-
-void (*lease_updatetime)(int)  = no_lease_updatetime;
-
 static int
 settime(struct thread *td, struct timeval *tv)
 {
@@ -168,9 +159,6 @@ settime(struct thread *td, struct timeva
 	ts.tv_nsec = tv->tv_usec * 1000;
 	mtx_lock(&Giant);
 	tc_setclock(&ts);
-	(void) splsoftclock();
-	lease_updatetime(delta.tv_sec);
-	splx(s);
 	resettodr();
 	mtx_unlock(&Giant);
 	return (0);

Modified: head/sys/kern/uipc_usrreq.c
==============================================================================
--- head/sys/kern/uipc_usrreq.c	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/kern/uipc_usrreq.c	Fri Apr 10 10:52:19 2009	(r190888)
@@ -457,10 +457,8 @@ restart:
 	error = mac_vnode_check_create(td->td_ucred, nd.ni_dvp, &nd.ni_cnd,
 	    &vattr);
 #endif
-	if (error == 0) {
-		VOP_LEASE(nd.ni_dvp, td, td->td_ucred, LEASE_WRITE);
+	if (error == 0)
 		error = VOP_CREATE(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &vattr);
-	}
 	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vput(nd.ni_dvp);
 	if (error) {

Modified: head/sys/kern/vfs_acl.c
==============================================================================
--- head/sys/kern/vfs_acl.c	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/kern/vfs_acl.c	Fri Apr 10 10:52:19 2009	(r190888)
@@ -91,7 +91,6 @@ vacl_set_acl(struct thread *td, struct v
 	error = vn_start_write(vp, &mp, V_WAIT | PCATCH);
 	if (error != 0)
 		return (error);
-	VOP_LEASE(vp, td, td->td_ucred, LEASE_WRITE);
 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
 #ifdef MAC
 	error = mac_vnode_check_setacl(td->td_ucred, vp, type, &inkernacl);
@@ -117,7 +116,6 @@ vacl_get_acl(struct thread *td, struct v
 	struct acl inkernelacl;
 	int error;
 
-	VOP_LEASE(vp, td, td->td_ucred, LEASE_WRITE);
 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
 #ifdef MAC
 	error = mac_vnode_check_getacl(td->td_ucred, vp, type);
@@ -146,7 +144,6 @@ vacl_delete(struct thread *td, struct vn
 	error = vn_start_write(vp, &mp, V_WAIT | PCATCH);
 	if (error)
 		return (error);
-	VOP_LEASE(vp, td, td->td_ucred, LEASE_WRITE);
 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
 #ifdef MAC
 	error = mac_vnode_check_deleteacl(td->td_ucred, vp, type);

Modified: head/sys/kern/vfs_default.c
==============================================================================
--- head/sys/kern/vfs_default.c	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/kern/vfs_default.c	Fri Apr 10 10:52:19 2009	(r190888)
@@ -98,7 +98,6 @@ struct vop_vector default_vnodeops = {
 	.vop_ioctl =		VOP_ENOTTY,
 	.vop_kqfilter =		vop_stdkqfilter,
 	.vop_islocked =		vop_stdislocked,
-	.vop_lease =		VOP_NULL,
 	.vop_lock1 =		vop_stdlock,
 	.vop_lookup =		vop_nolookup,
 	.vop_open =		VOP_NULL,

Modified: head/sys/kern/vfs_extattr.c
==============================================================================
--- head/sys/kern/vfs_extattr.c	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/kern/vfs_extattr.c	Fri Apr 10 10:52:19 2009	(r190888)
@@ -175,7 +175,6 @@ extattr_set_vp(struct vnode *vp, int att
 	error = vn_start_write(vp, &mp, V_WAIT | PCATCH);
 	if (error)
 		return (error);
-	VOP_LEASE(vp, td, td->td_ucred, LEASE_WRITE);
 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
 
 	aiov.iov_base = data;
@@ -341,7 +340,6 @@ extattr_get_vp(struct vnode *vp, int att
 	int error;
 
 	VFS_ASSERT_GIANT(vp->v_mount);
-	VOP_LEASE(vp, td, td->td_ucred, LEASE_READ);
 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
 
 	/*
@@ -522,7 +520,6 @@ extattr_delete_vp(struct vnode *vp, int 
 	error = vn_start_write(vp, &mp, V_WAIT | PCATCH);
 	if (error)
 		return (error);
-	VOP_LEASE(vp, td, td->td_ucred, LEASE_WRITE);
 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
 
 #ifdef MAC
@@ -664,7 +661,6 @@ extattr_list_vp(struct vnode *vp, int at
 	int error;
 
 	VFS_ASSERT_GIANT(vp->v_mount);
-	VOP_LEASE(vp, td, td->td_ucred, LEASE_READ);
 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
 
 	auiop = NULL;

Modified: head/sys/kern/vfs_syscalls.c
==============================================================================
--- head/sys/kern/vfs_syscalls.c	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/kern/vfs_syscalls.c	Fri Apr 10 10:52:19 2009	(r190888)
@@ -1161,7 +1161,6 @@ kern_openat(struct thread *td, int fd, c
 	if (flags & O_TRUNC) {
 		if ((error = vn_start_write(vp, &mp, V_WAIT | PCATCH)) != 0)
 			goto bad;
-		VOP_LEASE(vp, td, td->td_ucred, LEASE_WRITE);
 		VATTR_NULL(&vat);
 		vat.va_size = 0;
 		vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
@@ -1353,7 +1352,6 @@ restart:
 		    &nd.ni_cnd, &vattr);
 #endif
 	if (!error) {
-		VOP_LEASE(nd.ni_dvp, td, td->td_ucred, LEASE_WRITE);
 		if (whiteout)
 			error = VOP_WHITEOUT(nd.ni_dvp, &nd.ni_cnd, CREATE);
 		else {
@@ -1460,7 +1458,6 @@ restart:
 	if (error)
 		goto out;
 #endif
-	VOP_LEASE(nd.ni_dvp, td, td->td_ucred, LEASE_WRITE);
 	error = VOP_MKNOD(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &vattr);
 	if (error == 0)
 		vput(nd.ni_vp);
@@ -1606,8 +1603,6 @@ kern_linkat(struct thread *td, int fd1, 
 			error = EEXIST;
 		} else if ((error = vn_lock(vp, LK_EXCLUSIVE | LK_RETRY))
 		    == 0) {
-			VOP_LEASE(nd.ni_dvp, td, td->td_ucred, LEASE_WRITE);
-			VOP_LEASE(vp, td, td->td_ucred, LEASE_WRITE);
 			error = can_hardlink(vp, td->td_ucred);
 			if (error == 0)
 #ifdef MAC
@@ -1727,7 +1722,6 @@ restart:
 	if (error)
 		goto out2;
 #endif
-	VOP_LEASE(nd.ni_dvp, td, td->td_ucred, LEASE_WRITE);
 	error = VOP_SYMLINK(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &vattr, syspath);
 	if (error == 0)
 		vput(nd.ni_vp);
@@ -1787,7 +1781,6 @@ restart:
 			return (error);
 		goto restart;
 	}
-	VOP_LEASE(nd.ni_dvp, td, td->td_ucred, LEASE_WRITE);
 	error = VOP_WHITEOUT(nd.ni_dvp, &nd.ni_cnd, DELETE);
 	NDFREE(&nd, NDF_ONLY_PNBUF);
 	vput(nd.ni_dvp);
@@ -1893,7 +1886,6 @@ restart:
 		if (error)
 			goto out;
 #endif
-		VOP_LEASE(nd.ni_dvp, td, td->td_ucred, LEASE_WRITE);
 		error = VOP_REMOVE(nd.ni_dvp, vp, &nd.ni_cnd);
 #ifdef MAC
 out:
@@ -2667,7 +2659,6 @@ setfflags(td, vp, flags)
 
 	if ((error = vn_start_write(vp, &mp, V_WAIT | PCATCH)) != 0)
 		return (error);
-	VOP_LEASE(vp, td, td->td_ucred, LEASE_WRITE);
 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
 	VATTR_NULL(&vattr);
 	vattr.va_flags = flags;
@@ -2795,7 +2786,6 @@ setfmode(td, vp, mode)
 
 	if ((error = vn_start_write(vp, &mp, V_WAIT | PCATCH)) != 0)
 		return (error);
-	VOP_LEASE(vp, td, td->td_ucred, LEASE_WRITE);
 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
 	VATTR_NULL(&vattr);
 	vattr.va_mode = mode & ALLPERMS;
@@ -2958,7 +2948,6 @@ setfown(td, vp, uid, gid)
 
 	if ((error = vn_start_write(vp, &mp, V_WAIT | PCATCH)) != 0)
 		return (error);
-	VOP_LEASE(vp, td, td->td_ucred, LEASE_WRITE);
 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
 	VATTR_NULL(&vattr);
 	vattr.va_uid = uid;
@@ -3172,7 +3161,6 @@ setutimes(td, vp, ts, numtimes, nullflag
 
 	if ((error = vn_start_write(vp, &mp, V_WAIT | PCATCH)) != 0)
 		return (error);
-	VOP_LEASE(vp, td, td->td_ucred, LEASE_WRITE);
 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
 	setbirthtime = 0;
 	if (numtimes < 3 && !VOP_GETATTR(vp, &vattr, td->td_ucred) &&
@@ -3403,7 +3391,6 @@ kern_truncate(struct thread *td, char *p
 		return (error);
 	}
 	NDFREE(&nd, NDF_ONLY_PNBUF);
-	VOP_LEASE(vp, td, td->td_ucred, LEASE_WRITE);
 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
 	if (vp->v_type == VDIR)
 		error = EISDIR;
@@ -3647,13 +3634,6 @@ kern_renameat(struct thread *td, int old
 #endif
 out:
 	if (!error) {
-		VOP_LEASE(tdvp, td, td->td_ucred, LEASE_WRITE);
-		if (fromnd.ni_dvp != tdvp) {
-			VOP_LEASE(fromnd.ni_dvp, td, td->td_ucred, LEASE_WRITE);
-		}
-		if (tvp) {
-			VOP_LEASE(tvp, td, td->td_ucred, LEASE_WRITE);
-		}
 		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);
@@ -3779,7 +3759,6 @@ restart:
 	if (error)
 		goto out;
 #endif
-	VOP_LEASE(nd.ni_dvp, td, td->td_ucred, LEASE_WRITE);
 	error = VOP_MKDIR(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &vattr);
 #ifdef MAC
 out:
@@ -3872,8 +3851,6 @@ restart:
 			return (error);
 		goto restart;
 	}
-	VOP_LEASE(nd.ni_dvp, td, td->td_ucred, LEASE_WRITE);
-	VOP_LEASE(vp, td, td->td_ucred, LEASE_WRITE);
 	error = VOP_RMDIR(nd.ni_dvp, nd.ni_vp, &nd.ni_cnd);
 	vn_finished_write(mp);
 out:
@@ -4462,7 +4439,6 @@ fhopen(td, uap)
 			vrele(vp);
 			goto out;
 		}
-		VOP_LEASE(vp, td, td->td_ucred, LEASE_WRITE);
 		vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);	/* XXX */
 #ifdef MAC
 		/*

Modified: head/sys/kern/vfs_vnops.c
==============================================================================
--- head/sys/kern/vfs_vnops.c	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/kern/vfs_vnops.c	Fri Apr 10 10:52:19 2009	(r190888)
@@ -153,14 +153,10 @@ restart:
 #ifdef MAC
 			error = mac_vnode_check_create(cred, ndp->ni_dvp,
 			    &ndp->ni_cnd, vap);
-			if (error == 0) {
+			if (error == 0)
 #endif
-				VOP_LEASE(ndp->ni_dvp, td, cred, LEASE_WRITE);
 				error = VOP_CREATE(ndp->ni_dvp, &ndp->ni_vp,
 						   &ndp->ni_cnd, vap);
-#ifdef MAC
-			}
-#endif
 			vput(ndp->ni_dvp);
 			vn_finished_write(mp);
 			if (error) {
@@ -521,7 +517,6 @@ vn_read(fp, uio, active_cred, flags, td)
 	if (fp->f_flag & O_DIRECT)
 		ioflag |= IO_DIRECT;
 	vfslocked = VFS_LOCK_GIANT(vp->v_mount);
-	VOP_LEASE(vp, td, fp->f_cred, LEASE_READ);
 	/*
 	 * According to McKusick the vn lock was protecting f_offset here.
 	 * It is now protected by the FOFFSET_LOCKED flag.
@@ -598,7 +593,6 @@ vn_write(fp, uio, active_cred, flags, td
 	if (vp->v_type != VCHR &&
 	    (error = vn_start_write(vp, &mp, V_WAIT | PCATCH)) != 0)
 		goto unlock;
-	VOP_LEASE(vp, td, fp->f_cred, LEASE_WRITE);
 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
 	if ((flags & FOF_OFFSET) == 0)
 		uio->uio_offset = fp->f_offset;
@@ -642,7 +636,6 @@ vn_truncate(fp, length, active_cred, td)
 		VFS_UNLOCK_GIANT(vfslocked);
 		return (error);
 	}
-	VOP_LEASE(vp, td, active_cred, LEASE_WRITE);
 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
 	if (vp->v_type == VDIR) {
 		error = EISDIR;

Modified: head/sys/kern/vnode_if.src
==============================================================================
--- head/sys/kern/vnode_if.src	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/kern/vnode_if.src	Fri Apr 10 10:52:19 2009	(r190888)
@@ -199,16 +199,6 @@ vop_write {
 };
 
 
-%% lease	vp	= = =
-
-vop_lease {
-	IN struct vnode *vp;
-	IN struct thread *td;
-	IN struct ucred *cred;
-	IN int flag;
-};
-
-
 %% ioctl	vp	U U U
 
 vop_ioctl {

Modified: head/sys/nfs4client/nfs4_vnops.c
==============================================================================
--- head/sys/nfs4client/nfs4_vnops.c	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/nfs4client/nfs4_vnops.c	Fri Apr 10 10:52:19 2009	(r190888)
@@ -173,7 +173,6 @@ struct vop_vector nfs4_vnodeops = {
 	.vop_getpages =		nfs_getpages,
 	.vop_putpages =		nfs_putpages,
 	.vop_inactive =		nfs_inactive,
-	.vop_lease =		VOP_NULL,
 	.vop_link =		nfs4_link,
 	.vop_lookup =		nfs4_lookup,
 	.vop_mkdir =		nfs4_mkdir,

Modified: head/sys/nfsclient/nfs_vnops.c
==============================================================================
--- head/sys/nfsclient/nfs_vnops.c	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/nfsclient/nfs_vnops.c	Fri Apr 10 10:52:19 2009	(r190888)
@@ -168,7 +168,6 @@ struct vop_vector nfs_vnodeops = {
 	.vop_getpages =		nfs_getpages,
 	.vop_putpages =		nfs_putpages,
 	.vop_inactive =		nfs_inactive,
-	.vop_lease =		VOP_NULL,
 	.vop_link =		nfs_link,
 	.vop_lookup =		nfs_lookup,
 	.vop_mkdir =		nfs_mkdir,

Modified: head/sys/sys/vnode.h
==============================================================================
--- head/sys/sys/vnode.h	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/sys/vnode.h	Fri Apr 10 10:52:19 2009	(r190888)
@@ -412,14 +412,6 @@ extern	struct uma_zone *namei_zone;
 extern	int prtactive;			/* nonzero to call vprint() */
 extern	struct vattr va_null;		/* predefined null vattr structure */
 
-/*
- * Macro/function to check for client cache inconsistency w.r.t. leasing.
- */
-#define	LEASE_READ	0x1		/* Check lease for readers */
-#define	LEASE_WRITE	0x2		/* Check lease for modifiers */
-
-extern void	(*lease_updatetime)(int deltat);
-
 #define	VI_LOCK(vp)	mtx_lock(&(vp)->v_interlock)
 #define	VI_LOCK_FLAGS(vp, flags) mtx_lock_flags(&(vp)->v_interlock, (flags))
 #define	VI_TRYLOCK(vp)	mtx_trylock(&(vp)->v_interlock)
@@ -587,8 +579,6 @@ struct uio;
 struct vattr;
 struct vnode;
 
-extern int	(*lease_check_hook)(struct vop_lease_args *);
-
 /* cache_* may belong in namei.h. */
 void	cache_enter(struct vnode *dvp, struct vnode *vp,
 	    struct componentname *cnp);
@@ -607,7 +597,6 @@ int	insmntque1(struct vnode *vp, struct 
 	    void (*dtr)(struct vnode *, void *), void *dtr_arg);
 int	insmntque(struct vnode *vp, struct mount *mp);
 u_quad_t init_va_filerev(void);
-int	lease_check(struct vop_lease_args *ap);
 int	speedup_syncer(void);
 #define textvp_fullpath(p, rb, rfb) \
 	vn_fullpath(FIRST_THREAD_IN_PROC(p), (p)->p_textvp, rb, rfb)

Modified: head/sys/ufs/ffs/ffs_snapshot.c
==============================================================================
--- head/sys/ufs/ffs/ffs_snapshot.c	Fri Apr 10 10:22:44 2009	(r190887)
+++ head/sys/ufs/ffs/ffs_snapshot.c	Fri Apr 10 10:52:19 2009	(r190888)
@@ -278,7 +278,6 @@ restart:
 			return (error);
 		goto restart;
 	}
-	VOP_LEASE(nd.ni_dvp, td, KERNCRED, LEASE_WRITE);
 	error = VOP_CREATE(nd.ni_dvp, &nd.ni_vp, &nd.ni_cnd, &vat);
 	VOP_UNLOCK(nd.ni_dvp, 0);
 	if (error) {


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