fs/unionfs/union_subr.c

112 	struct vnode   *vp;
123 			vp = UNIONFSTOV(unp);
124 			VI_LOCK_FLAGS(vp, MTX_DUPOK);
126 			vp->v_iflag &= ~VI_OWEINACT;
127 			if ((vp->v_iflag & (VI_DOOMED | VI_DOINGINACT)) != 0) {
128 				VI_UNLOCK(vp);
129 				vp = NULLVP;
131 				VI_UNLOCK(vp);
132 			return (vp);
149 	struct vnode   *vp;
160 			vp = UNIONFSTOV(unp);
161 			VI_LOCK_FLAGS(vp, MTX_DUPOK);
162 			vp->v_iflag &= ~VI_OWEINACT;
163 			if ((vp->v_iflag & (VI_DOOMED | VI_DOINGINACT)) != 0) {
165 				VI_UNLOCK(vp);
166 				vp = NULLVP;
168 				VI_UNLOCK(vp);
170 			return (vp);
214 	struct vnode   *vp;
236 		vp = unionfs_get_cached_vnode(uppervp, lowervp, dvp, path);
237 		if (vp != NULLVP) {
238 			vref(vp);
239 			*vpp = vp;
259 	error = getnewvnode("unionfs", mp, &unionfs_vnodeops, &vp);
264 	error = insmntque(vp, mp);	/* XXX: Too early for mpsafe fs */
280 	unp->un_vnode = vp;
285 		vp->v_vnlock = uppervp->v_vnlock;
287 		vp->v_vnlock = lowervp->v_vnlock;
295 	vp->v_type = vt;
296 	vp->v_data = unp;
300 		vp->v_vflag |= VV_ROOT;
315 		vrele(vp);
316 		vp = *vpp;
317 		vref(vp);
319 		*vpp = vp;
323 		vn_lock(vp, lkflags | LK_RETRY);
332 unionfs_noderem(struct vnode *vp, struct thread *td)
347 	VI_LOCK(vp);
348 	unp = VTOUNIONFS(vp);
353 	vp->v_vnlock = &(vp->v_lock);
354 	vp->v_data = NULL;
355 	vp->v_object = NULL;
356 	VI_UNLOCK(vp);
366 	if (lockmgr(vp->v_vnlock, LK_EXCLUSIVE, VI_MTX(vp)) != 0)
583 	struct vnode *vp;
587 	vp = NULLVP;
589 	error = unionfs_relookup(udvp, &vp, cnp, &cn, td, cnp->cn_nameptr,
594 	if (vp != NULLVP) {
595 		if (udvp == vp)
596 			vrele(vp);
598 			vput(vp);
627 	struct vnode *vp;
631 	vp = NULLVP;
633 	error = unionfs_relookup(udvp, &vp, cnp, &cn, td, cnp->cn_nameptr,
638 	if (vp == NULLVP)
641 		if (udvp == vp)
642 			vrele(vp);
644 			vput(vp);
671 	struct vnode *vp;
675 	vp = NULLVP;
677 	error = unionfs_relookup(udvp, &vp, cnp, &cn, td, cnp->cn_nameptr,
682 	if (vp != NULLVP) {
683 		if (udvp == vp)
684 			vrele(vp);
686 			vput(vp);
714 	struct vnode   *vp;
718 	vp = UNIONFSTOV(unp);
726 	VI_LOCK(vp);
728 	vp->v_vnlock = uvp->v_vnlock;
729 	VI_UNLOCK(vp);
737 	if (unp->un_path != NULL && dvp != NULLVP && vp->v_type == VDIR) {
903 	struct vnode   *vp;
912 	vp = NULLVP;
937 	if ((error = relookup(udvp, &vp, &cn)) != 0)
941 	if (vp != NULLVP) {
942 		if (vp == udvp)
943 			vrele(vp);
945 			vput(vp);
950 	if ((error = VOP_CREATE(udvp, &vp, &cn, uvap)) != 0)
953 	if ((error = VOP_OPEN(vp, fmode, cred, td, NULL)) != 0) {
954 		vput(vp);
957 	VOP_ADD_WRITECOUNT(vp, 1);
958 	*vpp = vp;
1108  * It checks whether vp can rmdir. (check empty)
1110  * vp is unionfs vnode.
1111  * vp should be locked.
1114 unionfs_check_rmdir(struct vnode *vp, struct ucred *cred, struct thread *td)
1133 	ASSERT_VOP_ELOCKED(vp, "unionfs_check_rmdir");
1136 	uvp = UNIONFSVPTOUPPERVP(vp);
1137 	lvp = UNIONFSVPTOLOWERVP(vp);
1147 	if ((error = mac_vnode_check_open(cred, vp, VEXEC|VREAD)) != 0)
1150 	if ((error = VOP_ACCESS(vp, VEXEC|VREAD, cred, td)) != 0)
1152 	if ((error = VOP_OPEN(vp, FREAD, cred, td, NULL)) != 0)
1231 	VOP_CLOSE(vp, FREAD, cred, td);
1239 unionfs_checkuppervp(struct vnode *vp, char *fil, int lno)
1243 	unp = VTOUNIONFS(vp);
1246 	if (vp->v_op != unionfs_vnodeop_p) {
1259 unionfs_checklowervp(struct vnode *vp, char *fil, int lno)
1263 	unp = VTOUNIONFS(vp);
1266 	if (vp->v_op != unionfs_vnodeop_p) {