1 /*
2 * Copyright (c) 2016 Cyril Hrubis <chrubis@suse.cz>
3 *
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18 #ifndef UMOUNT2_H__
19 #define UMOUNT2_H__
20
umount2_retry(const char * target,int flags)21 static inline int umount2_retry(const char *target, int flags)
22 {
23 int i, ret;
24
25 for (i = 0; i < 50; i++) {
26 ret = umount2(target, flags);
27
28 if (ret == 0 || errno != EBUSY)
29 return ret;
30
31 tst_resm(TINFO, "umount('%s', %i) failed with EBUSY, try %2i...",
32 target, flags, i);
33
34 usleep(100000);
35 }
36
37 tst_resm(TWARN, "Failed to umount('%s', %i) after 50 retries",
38 target, flags);
39
40 errno = EBUSY;
41 return -1;
42 }
43
44 #endif /* UMOUNT2_H__ */
45