#ifndef _SYS_MOUNT_H
#define _SYS_MOUNT_H
+#include <sys/ioctl.h>
+
+#define BLKROSET _IO(0x12, 93)
+#define BLKROGET _IO(0x12, 94)
+#define BLKRRPART _IO(0x12, 95)
+#define BLKGETSIZE _IO(0x12, 96)
+#define BLKFLSBUF _IO(0x12, 97)
+#define BLKRASET _IO(0x12, 98)
+#define BLKRAGET _IO(0x12, 99)
+#define BLKFRASET _IO(0x12,100)
+#define BLKFRAGET _IO(0x12,101)
+#define BLKSECTSET _IO(0x12,102)
+#define BLKSECTGET _IO(0x12,103)
+#define BLKSSZGET _IO(0x12,104)
+#define BLKBSZGET _IOR(0x12,112,size_t)
+#define BLKBSZSET _IOW(0x12,113,size_t)
+#define BLKGETSIZE64 _IOR(0x12,114,size_t)
+
#define MS_RDONLY 1
#define MS_NOSUID 2
#define MS_NODEV 4