fs/unionfs/union_vnops.c

89 	struct componentname *cnp;
95 	cnp = ap->a_cnp;
96 	nameiop = cnp->cn_nameiop;
97 	cnflags = cnp->cn_flags;
106 	UNIONFS_INTERNAL_DEBUG("unionfs_lookup: enter: nameiop=%ld, flags=%lx, path=%s\n", nameiop, cnflags, cnp->cn_nameptr);
134 		error = VOP_LOOKUP(dtmpvp, &vp, cnp);
148 			    (cnp->cn_lkflags & LK_TYPE_MASK))
158 			else if (cnp->cn_lkflags & LK_TYPE_MASK)
159 				vn_lock(dunp->un_dvp, cnp->cn_lkflags |
165 			cache_enter(dvp, NULLVP, cnp);
176 		uerror = VOP_LOOKUP(udvp, &uvp, cnp);
189 			    (cnp->cn_lkflags & LK_TYPE_MASK))
195 			if (cnp->cn_flags & ISWHITEOUT)
198 			if (!VOP_GETATTR(udvp, &va, cnp->cn_cred) &&
202 		UNIONFS_INTERNAL_DEBUG("unionfs_lookup: debug: whiteout=%d, path=%s\n", iswhiteout, cnp->cn_nameptr);
211 		cnp->cn_nameiop = LOOKUP;
212 		cnflagsbk = cnp->cn_flags;
213 		cnp->cn_flags = cnflags;
215 		lerror = VOP_LOOKUP(ldvp, &lvp, cnp);
217 		cnp->cn_nameiop = nameiop;
219 			cnp->cn_flags = cnflagsbk;
233 			if (cnp->cn_lkflags & LK_TYPE_MASK)
261 	    (1 < cnp->cn_namelen || '.' != *(cnp->cn_nameptr))) {
264 		    cnp, td);
268 		if (LK_SHARED == (cnp->cn_lkflags & LK_TYPE_MASK))
275 		    udvp, VTOUNIONFS(vp), cnp, td);
280 			if ((cnp->cn_lkflags & LK_TYPE_MASK) == LK_EXCLUSIVE)
286 		if ((cnp->cn_lkflags & LK_TYPE_MASK) == LK_SHARED)
305 			if (cnp->cn_lkflags & LK_TYPE_MASK)
306 				vn_lock(vp, cnp->cn_lkflags | LK_RETRY);
311 			if (cnp->cn_lkflags & LK_TYPE_MASK)
312 				vn_lock(vp, cnp->cn_lkflags | LK_RETRY);
319 			    dvp, &vp, cnp, td);
325 		    (cnp->cn_lkflags & LK_TYPE_MASK) == 0)
332 		cache_enter(dvp, vp, cnp);
341 		cache_enter(dvp, NULLVP, cnp);
352 	struct componentname *cnp;
362 	cnp = ap->a_cnp;
367 		error = VOP_CREATE(udvp, &vp, cnp, ap->a_vap);
376 			    ap->a_dvp, ap->a_vpp, cnp, curthread);
391 	struct componentname *cnp;
400 	cnp = ap->a_cnp;
409 			error = VOP_WHITEOUT(udvp, cnp, ap->a_flags);
426 	struct componentname *cnp;
436 	cnp = ap->a_cnp;
441 		error = VOP_MKNOD(udvp, &vp, cnp, ap->a_vap);
450 			    ap->a_dvp, ap->a_vpp, cnp, curthread);
972 	struct componentname *cnp;
983 	cnp = ap->a_cnp;
993 		error = unionfs_relookup(udvp, &vp, cnp, &cn, td,
994 		    cnp->cn_nameptr, strlen(cnp->cn_nameptr), DELETE);
1035 			cnp->cn_flags |= DOWHITEOUT;
1036 		error = VOP_REMOVE(udvp, uvp, cnp);
1038 		error = unionfs_mkwhiteout(udvp, cnp, td, path);
1054 	struct componentname *cnp;
1068 	cnp = ap->a_cnp;
1083 			error = unionfs_copyfile(unp, 1, cnp->cn_cred, td);
1092 		error = unionfs_relookup_for_create(ap->a_tdvp, cnp, td);
1095 		error = VOP_LINK(udvp, uvp, cnp);
1334 	struct componentname *cnp;
1346 	cnp = ap->a_cnp;
1347 	lkflags = cnp->cn_lkflags;
1353 		if (!(cnp->cn_flags & ISWHITEOUT)) {
1354 			error = VOP_GETATTR(udvp, &va, cnp->cn_cred);
1358 				cnp->cn_flags |= ISWHITEOUT;
1361 		if ((error = VOP_MKDIR(udvp, &uvp, cnp, ap->a_vap)) == 0) {
1363 			cnp->cn_lkflags = LK_EXCLUSIVE;
1365 			    ap->a_dvp, ap->a_vpp, cnp, td);
1366 			cnp->cn_lkflags = lkflags;
1383 	struct componentname *cnp;
1397 	cnp = ap->a_cnp;
1411 			error = unionfs_check_rmdir(ap->a_vp, cnp->cn_cred, td);
1417 			cnp->cn_flags |= DOWHITEOUT;
1418 		error = unionfs_relookup_for_delete(ap->a_dvp, cnp, td);
1420 			error = VOP_RMDIR(udvp, uvp, cnp);
1423 		error = unionfs_mkwhiteout(udvp, cnp, td, unp->un_path);
1441 	struct componentname *cnp;
1452 	cnp = ap->a_cnp;
1453 	lkflags = cnp->cn_lkflags;
1458 		error = VOP_SYMLINK(udvp, &uvp, cnp, ap->a_vap, ap->a_target);
1461 			cnp->cn_lkflags = LK_EXCLUSIVE;
1463 			    ap->a_dvp, ap->a_vpp, cnp, td);
1464 			cnp->cn_lkflags = lkflags;