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 TST_DEVICE_H__ 19 #define TST_DEVICE_H__ 20 21 struct tst_device { 22 const char *dev; 23 const char *fs_type; 24 }; 25 26 /* 27 * Automatically initialized if test.needs_device is set. 28 */ 29 extern struct tst_device *tst_device; 30 31 /* 32 * Just like umount() but retries several times on failure. 33 * @path: Path to umount 34 */ 35 int tst_umount(const char *path); 36 37 /* 38 * Clears a first few blocks of the device. This is needed when device has 39 * already been formatted with a filesystems, subset of mkfs.foo utils aborts 40 * the operation if it finds a filesystem signature there. 41 * 42 * Note that this is called from tst_mkfs() automatically, so you probably will 43 * not need to use this from the test yourself. 44 */ 45 int tst_clear_device(const char *dev); 46 47 /* 48 * Reads test block device stat file and returns the bytes written since the 49 * last call of this function. 50 * @dev: test block device 51 */ 52 unsigned long tst_dev_bytes_written(const char *dev); 53 54 #endif /* TST_DEVICE_H__ */ 55