80 unionfs_lookup_isroot(struct componentname *cnp, struct vnode *dvp)  in unionfs_lookup_isroot()  argument
84 	if (dvp == NULL)  in unionfs_lookup_isroot()
86 	if ((dvp->v_vflag & VV_ROOT) != 0)  in unionfs_lookup_isroot()
91 	return (vfs_lookup_isroot(ndp, dvp));  in unionfs_lookup_isroot()
98 	struct vnode   *dvp, *udvp, *ldvp, *vp, *uvp, *lvp, *dtmpvp;  in unionfs_lookup()  local
113 	dvp = ap->a_dvp;  in unionfs_lookup()
114 	dunp = VTOUNIONFS(dvp);  in unionfs_lookup()
125 	if (dvp->v_type != VDIR)  in unionfs_lookup()
132 	    (dvp->v_mount->mnt_flag & MNT_RDONLY) &&  in unionfs_lookup()
138 	 * is already in-flight against dvp.  This is done because we may  in unionfs_lookup()
139 	 * end up dropping dvp's lock to look up a lower vnode or to create  in unionfs_lookup()
155 	error = unionfs_set_in_progress_flag(dvp, UNIONFS_LOOKUP_IN_PROGRESS);  in unionfs_lookup()
180 		unionfs_forward_vop_finish(dvp, dtmpvp, lkflags);  in unionfs_lookup()
186 		 * reference, or (if dvp was reclaimed) we'll need to drop  in unionfs_lookup()
191 		dunp = VTOUNIONFS(dvp);  in unionfs_lookup()
198 			VOP_UNLOCK(dvp);  in unionfs_lookup()
208 			vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY);  in unionfs_lookup()
228 			VOP_UNLOCK(dvp);  in unionfs_lookup()
242 		    unionfs_forward_vop_finish(dvp, ldvp, lkflags)) {  in unionfs_lookup()
255 				*(ap->a_vpp) = dvp;  in unionfs_lookup()
256 				vref(dvp);  in unionfs_lookup()
265 			vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY);  in unionfs_lookup()
266 			if (VN_IS_DOOMED(dvp))  in unionfs_lookup()
282 		if (unionfs_forward_vop_finish(dvp, udvp, lkflags)) {  in unionfs_lookup()
294 				*(ap->a_vpp) = dvp;  in unionfs_lookup()
295 				vref(dvp);  in unionfs_lookup()
344 	    !(dvp->v_mount->mnt_flag & MNT_RDONLY) &&  in unionfs_lookup()
347 		error = unionfs_nodeget(dvp->v_mount, NULL, lvp, dvp, &vp,  in unionfs_lookup()
362 			error = unionfs_mkshadowdir(dvp, vp, cnp, td);  in unionfs_lookup()
391 		error = unionfs_nodeget(dvp->v_mount, uvp, lvp,  in unionfs_lookup()
392 		    dvp, &vp, cnp);  in unionfs_lookup()
400 	if (VN_IS_DOOMED(dvp) || VN_IS_DOOMED(vp)) {  in unionfs_lookup()
409 		cache_enter(dvp, vp, cnp);  in unionfs_lookup()
418 	    !VN_IS_DOOMED(dvp))  in unionfs_lookup()
419 		cache_enter(dvp, NULL, cnp);  in unionfs_lookup()
422 	unionfs_clear_in_progress_flag(dvp, UNIONFS_LOOKUP_IN_PROGRESS);  in unionfs_lookup()
1629 	struct vnode   *dvp;  in unionfs_mkdir()  local
1641 	dvp = ap->a_dvp;  in unionfs_mkdir()
1642 	dunp = VTOUNIONFS(dvp);  in unionfs_mkdir()
1663 		if (__predict_false(unionfs_forward_vop_finish(dvp, udvp,  in unionfs_mkdir()
1669 			error = unionfs_nodeget(dvp->v_mount, uvp, NULL,  in unionfs_mkdir()
1670 						dvp, ap->a_vpp, cnp);  in unionfs_mkdir()
1719 			 * We need to keep dvp and vp's upper vnodes locked  in unionfs_rmdir()
1730 			 * ERELOOKUP to re-drive the lookup in case the dvp->  in unionfs_rmdir()
2789 	struct vnode *dvp, *vp, **vpp, *lvp, *uvp, *tvp, *tdvp, *tempvp;  in unionfs_vput_pair()  local
2793 	dvp = ap->a_dvp;  in unionfs_vput_pair()
2801 	dunp = VTOUNIONFS(dvp);  in unionfs_vput_pair()
2866 	vrele(dvp);  in unionfs_vput_pair()
2878 		error = unionfs_nodeget(mp, uvp, lvp, dvp, &tempvp, NULL);  in unionfs_vput_pair()