fs/unionfs/union_vnops.c

87 	struct vnode   *dvp, *udvp, *ldvp, *vp, *uvp, *lvp, *dtmpvp;
102 	vp = uvp = lvp = NULLVP;
214 		lerror = VOP_LOOKUP(ldvp, &lvp, cnp);
221 			if (ldvp == lvp) {	/* is dot */
224 				vrele(lvp);
233 				VOP_UNLOCK(lvp, LK_RELEASE);
240 	if (uvp == NULLVP && lvp == NULLVP) {
249 	if (uvp != NULLVP && lvp != NULLVP && uvp->v_type != lvp->v_type) {
250 		vrele(lvp);
251 		lvp = NULLVP;
258 	    lerror == 0 && lvp != NULLVP && lvp->v_type == VDIR &&
262 		error = unionfs_nodeget(dvp->v_mount, NULLVP, lvp, dvp, &vp,
307 		else if (lvp != NULLVP && lvp->v_type == VSOCK) {
308 			vp = lvp;
317 			error = unionfs_nodeget(dvp->v_mount, uvp, lvp,
336 	if (lvp != NULLVP)
337 		vrele(lvp);
467 	struct vnode   *lvp;
479 	lvp = unp->un_lowervp;
491 			targetvp = lvp;
493 		if (targetvp == lvp &&
494 		    (ap->a_mode & FWRITE) && lvp->v_type == VREG)
499 			if ((ap->a_mode & FWRITE) && lvp->v_type == VREG) {
506 				targetvp = lvp;
514 			if (uvp->v_type == VDIR && lvp != NULLVP &&
517 				error = VOP_OPEN(lvp, FREAD, cred, td, NULL);
675 	struct vnode   *lvp;
688 	lvp = unp->un_lowervp;
713 	if (lvp != NULLVP) {
728 					    lvp, &va, ap->a_cred, td);
741 		error = VOP_ACCESS(lvp, accmode, ap->a_cred, td);
756 	struct vnode   *lvp;
767 	lvp = unp->un_lowervp;
781 	error = VOP_GETATTR(lvp, ap->a_vap, ap->a_cred);
808 	struct vnode   *lvp;
819 	lvp = unp->un_lowervp;
829 	if (uvp == NULLVP && lvp->v_type == VREG) {
969 	struct vnode   *lvp;
989 		vp = uvp = lvp = NULLVP;
1013 			lvp = ap->a_vp;
1020 		lvp = unp->un_lowervp;
1033 		    lvp != NULLVP)
1036 	} else if (lvp != NULLVP)
1386 	struct vnode   *lvp;
1400 	lvp = unp->un_lowervp;
1409 		if (lvp != NULLVP) {
1415 		if (ump->um_whitemode == UNIONFS_WHITE_ALWAYS || lvp != NULLVP)
1421 	else if (lvp != NULLVP)
1485 	struct vnode   *lvp;
1502 	lvp = NULLVP;
1522 		lvp = unp->un_lowervp;
1525 			(lvp != NULLVP && unsp->uns_lower_opencnt <= 0)) {
1536 	if (uvp != NULLVP && lvp != NULLVP) {
1540 			lvp = NULLVP;
1544 	if (uvp != NULLVP && lvp == NULLVP) {
1553 	if (uvp == NULLVP && lvp != NULLVP) {
1554 		error = VOP_READDIR(lvp, uio, ap->a_cred, ap->a_eofflag,
1565 	KASSERT(lvp != NULLVP, ("unionfs_readdir: null lower vp"));
1612 	if (lvp == NULLVP) {
1617 	error = VOP_READDIR(lvp, uio, ap->a_cred, ap->a_eofflag,
1839 	struct vnode   *lvp;
1863 	lvp = unp->un_lowervp;
1880 	if (lvp != NULLVP) {
1893 				VOP_UNLOCK(lvp, LK_RELEASE);
1898 		VI_LOCK_FLAGS(lvp, MTX_DUPOK);
1900 		vholdl(lvp);
1905 		error = VOP_LOCK(lvp, flags);
1913 				VOP_UNLOCK(lvp, LK_RELEASE);
1914 			vdrop(lvp);
1946 			if (lvp != NULLVP) {
1947 				VOP_UNLOCK(lvp, LK_RELEASE);
1948 				vdrop(lvp);
1952 		if (error != 0 && lvp != NULLVP) {
1955 			unionfs_revlock(lvp, revlock);
1962 	if (lvp != NULLVP)
1963 		vdrop(lvp);
1982 	struct vnode   *lvp;
2004 	lvp = unp->un_lowervp;
2007 	if (lvp != NULLVP) {
2008 		VI_LOCK_FLAGS(lvp, MTX_DUPOK);
2010 		vholdl(lvp);
2015 		error = VOP_UNLOCK(lvp, flags);
2035 	if (lvp != NULLVP)
2036 		vdrop(lvp);
2171 	struct vnode   *lvp;
2181 	lvp = unp->un_lowervp;
2187 	if (uvp == NULLVP && lvp->v_type == VREG) {
2321 	struct vnode   *lvp;
2331 	lvp = unp->un_lowervp;
2349 	if (ovp == lvp && lvp->v_type == VREG) {
2350 		VOP_CLOSEEXTATTR(lvp, 0, cred, td);
2355 			    VOP_OPENEXTATTR(lvp, cred, td)) {
2410 	struct vnode   *lvp;
2420 	lvp = unp->un_lowervp;
2438 	if (ovp == lvp && lvp->v_type == VREG) {
2439 		VOP_CLOSEEXTATTR(lvp, 0, cred, td);
2444 			    VOP_OPENEXTATTR(lvp, cred, td)) {
2476 	struct vnode   *lvp;
2486 	lvp = unp->un_lowervp;
2492 	if (uvp == NULLVP && lvp->v_type == VREG) {