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author | David Woodhouse <David.Woodhouse@intel.com> | 2012-11-21 10:38:13 +0000 |
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committer | David Woodhouse <David.Woodhouse@intel.com> | 2012-11-21 10:38:13 +0000 |
commit | 851462444d421c223965b12b836bef63da61b57f (patch) | |
tree | 495baa14e638817941496c36e1443aed7dae0ea0 /include/uapi/linux/blkpg.h | |
parent | 5a6ea4af0907f995dc06df21a9c9ef764c7cd3bc (diff) | |
parent | 6924d99fcdf1a688538a3cdebd1f135c22eec191 (diff) | |
download | op-kernel-dev-851462444d421c223965b12b836bef63da61b57f.zip op-kernel-dev-851462444d421c223965b12b836bef63da61b57f.tar.gz |
Merge branch 'for-3.7' of git://git.infradead.org/users/dedekind/l2-mtd
Conflicts:
drivers/mtd/nand/nand_base.c
Diffstat (limited to 'include/uapi/linux/blkpg.h')
-rw-r--r-- | include/uapi/linux/blkpg.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/include/uapi/linux/blkpg.h b/include/uapi/linux/blkpg.h new file mode 100644 index 0000000..a851944 --- /dev/null +++ b/include/uapi/linux/blkpg.h @@ -0,0 +1,59 @@ +#ifndef _LINUX_BLKPG_H +#define _LINUX_BLKPG_H + +/* + * Partition table and disk geometry handling + * + * A single ioctl with lots of subfunctions: + * + * Device number stuff: + * get_whole_disk() (given the device number of a partition, + * find the device number of the encompassing disk) + * get_all_partitions() (given the device number of a disk, return the + * device numbers of all its known partitions) + * + * Partition stuff: + * add_partition() + * delete_partition() + * test_partition_in_use() (also for test_disk_in_use) + * + * Geometry stuff: + * get_geometry() + * set_geometry() + * get_bios_drivedata() + * + * For today, only the partition stuff - aeb, 990515 + */ +#include <linux/compiler.h> +#include <linux/ioctl.h> + +#define BLKPG _IO(0x12,105) + +/* The argument structure */ +struct blkpg_ioctl_arg { + int op; + int flags; + int datalen; + void __user *data; +}; + +/* The subfunctions (for the op field) */ +#define BLKPG_ADD_PARTITION 1 +#define BLKPG_DEL_PARTITION 2 +#define BLKPG_RESIZE_PARTITION 3 + +/* Sizes of name fields. Unused at present. */ +#define BLKPG_DEVNAMELTH 64 +#define BLKPG_VOLNAMELTH 64 + +/* The data structure for ADD_PARTITION and DEL_PARTITION */ +struct blkpg_partition { + long long start; /* starting offset in bytes */ + long long length; /* length in bytes */ + int pno; /* partition number */ + char devname[BLKPG_DEVNAMELTH]; /* partition name, like sda5 or c0d1p2, + to be used in kernel messages */ + char volname[BLKPG_VOLNAMELTH]; /* volume label */ +}; + +#endif /* _LINUX_BLKPG_H */ |