]>
git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blob - include/linux/blkpg.h
5 * Partition table and disk geometry handling
7 * A single ioctl with lots of subfunctions:
10 * get_whole_disk() (given the device number of a partition,
11 * find the device number of the encompassing disk)
12 * get_all_partitions() (given the device number of a disk, return the
13 * device numbers of all its known partitions)
18 * test_partition_in_use() (also for test_disk_in_use)
23 * get_bios_drivedata()
25 * For today, only the partition stuff - aeb, 990515
27 #include <linux/ioctl.h>
29 #define BLKPG _IO(0x12,105)
31 /* The argument structure */
32 struct blkpg_ioctl_arg
{
39 /* The subfunctions (for the op field) */
40 #define BLKPG_ADD_PARTITION 1
41 #define BLKPG_DEL_PARTITION 2
43 /* Sizes of name fields. Unused at present. */
44 #define BLKPG_DEVNAMELTH 64
45 #define BLKPG_VOLNAMELTH 64
47 /* The data structure for ADD_PARTITION and DEL_PARTITION */
48 struct blkpg_partition
{
49 long long start
; /* starting offset in bytes */
50 long long length
; /* length in bytes */
51 int pno
; /* partition number */
52 char devname
[BLKPG_DEVNAMELTH
]; /* partition name, like sda5 or c0d1p2,
53 to be used in kernel messages */
54 char volname
[BLKPG_VOLNAMELTH
]; /* volume label */
57 #endif /* _LINUX_BLKPG_H */