1 // SPDX-License-Identifier: CDDL-1.0
2 /*
3 * CDDL HEADER START
4 *
5 * The contents of this file are subject to the terms of the
6 * Common Development and Distribution License (the "License").
7 * You may not use this file except in compliance with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or https://opensource.org/licenses/CDDL-1.0.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22
23 /*
24 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
25 * Use is subject to license terms.
26 */
27
28 /*
29 * Copyright (c) 2012 by Delphix. All rights reserved.
30 */
31
32 /*
33 * Assertion:
34 * Create two directory trees in zfs filesystem, and rename
35 * directory across the directory structure. ZFS can handle
36 * the race situation.
37 */
38
39 /*
40 * Need to create the following directory structures before
41 * running this program:
42 *
43 * mkdir -p 1/2/3/4/5 a/b/c/d/e
44 */
45
46
47 #include <stdlib.h>
48 #include <unistd.h>
49 #include <stdio.h>
50
51 int
main(void)52 main(void)
53 {
54 int i = 1;
55
56 switch (fork()) {
57 case -1:
58 perror("fork");
59 exit(1);
60 break;
61
62 case 0:
63 while (i > 0) {
64 int c_count = 0;
65 if (rename("a/b/c", "1/2/3/c") == 0)
66 c_count++;
67 if (rename("1/2/3/c", "a/b/c") == 0)
68 c_count++;
69 if (c_count)
70 (void) fprintf(stderr, "c_count: %d", c_count);
71 }
72 _exit(0);
73
74 default:
75 while (i > 0) {
76 int p_count = 0;
77 if (rename("1", "a/b/c/d/e/1") == 0)
78 p_count++;
79 if (rename("a/b/c/d/e/1", "1") == 0)
80 p_count++;
81 if (p_count)
82 (void) fprintf(stderr, "p_count: %d", p_count);
83 }
84 return (0);
85 }
86 }
87