3 #include <linux/ioctl.h>
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];
11 #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
12 struct btrfs_ioctl_vol_args)