ioctl.h

   1 #ifndef __IOCTL_
   2 #define __IOCTL_
   3 #include <linux/ioctl.h>
   4
   5 #define BTRFS_IOCTL_MAGIC 0x94
   6 #define BTRFS_VOL_NAME_MAX 255
   7 struct btrfs_ioctl_vol_args {
   8         char name[BTRFS_VOL_NAME_MAX + 1];
   9 };
  10
  11 #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
  12                                    struct btrfs_ioctl_vol_args)
  13 #endif