1 /* 2 * Copyright (c) 2016 Cyril Hrubis <chrubis (at) 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 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
