LXR linux/include/uapi/linux/blkpg.h

   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2#ifndef _UAPI__LINUX_BLKPG_H
   3#define _UAPI__LINUX_BLKPG_H
   4
   5#include <linux/compiler.h>
   6#include <linux/ioctl.h>
   7
   8#define BLKPG      _IO(0x12,105)
   9
  10/* The argument structure */
  11struct blkpg_ioctl_arg {
  12        int op;
  13        int flags;
  14        int datalen;
  15        void __user *data;
  16};
  17
  18/* The subfunctions (for the op field) */
  19#define BLKPG_ADD_PARTITION     1
  20#define BLKPG_DEL_PARTITION     2
  21#define BLKPG_RESIZE_PARTITION  3
  22
  23/* Sizes of name fields. Unused at present. */
  24#define BLKPG_DEVNAMELTH        64
  25#define BLKPG_VOLNAMELTH        64
  26
  27/* The data structure for ADD_PARTITION and DEL_PARTITION */
  28struct blkpg_partition {
  29        long long start;                /* starting offset in bytes */
  30        long long length;               /* length in bytes */
  31        int pno;                        /* partition number */
  32        char devname[BLKPG_DEVNAMELTH]; /* unused / ignored */
  33        char volname[BLKPG_VOLNAMELTH]; /* unused / ignore */
  34};
  35
  36#endif /* _UAPI__LINUX_BLKPG_H */
  37