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);