Merge pull request #16678 from poettering/loop-configure
[thirdparty/systemd.git] / src / basic / blockdev-util.h
1 /* SPDX-License-Identifier: LGPL-2.1+ */
2 #pragma once
3
4 #include <sys/types.h>
5
6 #include "macro.h"
7 #include "stdio-util.h"
8 #include "string-util.h"
9
10 #define SYS_BLOCK_PATH_MAX(suffix) \
11 (STRLEN("/sys/dev/block/") + DECIMAL_STR_MAX(dev_t) + 1 + DECIMAL_STR_MAX(dev_t) + strlen_ptr(suffix))
12 #define xsprintf_sys_block_path(buf, suffix, devno) \
13 xsprintf(buf, "/sys/dev/block/%u:%u%s", major(devno), minor(devno), strempty(suffix))
14
15 int block_get_whole_disk(dev_t d, dev_t *ret);
16 int block_get_originating(dev_t d, dev_t *ret);
17
18 int get_block_device(const char *path, dev_t *dev);
19
20 int get_block_device_harder(const char *path, dev_t *dev);
21
22 int lock_whole_block_device(dev_t devt, int operation);
23
24 int blockdev_partscan_enabled(int fd);