btrfs_ioctl      2906 fs/btrfs/ctree.h long btrfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
btrfs_ioctl      3477 fs/btrfs/file.c 	.unlocked_ioctl	= btrfs_ioctl,
btrfs_ioctl      11095 fs/btrfs/inode.c 	.unlocked_ioctl	= btrfs_ioctl,
btrfs_ioctl      5615 fs/btrfs/ioctl.c 	return btrfs_ioctl(file, cmd, (unsigned long) compat_ptr(arg));