1 files changed, 57 insertions, 0 deletions

diff --git a/include/linux/blkpg.h b/include/linux/blkpg.h
new file mode 100644
index 000000000000..be5d0f4ad24c
--- /dev/null
+++ b/include/linux/blkpg.h
@@ -0,0 +1,57 @@
+#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/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
+
+/* 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 */