+#define BCH_IOCTL_DISK_RESIZE _IOW(0xbc, 14, struct bch_ioctl_disk_resize)
+#define BCH_IOCTL_DISK_RESIZE_JOURNAL _IOW(0xbc,15, struct bch_ioctl_disk_resize_journal)
+
+#define BCH_IOCTL_SUBVOLUME_CREATE _IOW(0xbc, 16, struct bch_ioctl_subvolume)
+#define BCH_IOCTL_SUBVOLUME_DESTROY _IOW(0xbc, 17, struct bch_ioctl_subvolume)
+
+/* ioctl below act on a particular file, not the filesystem as a whole: */
+
+#define BCHFS_IOC_REINHERIT_ATTRS _IOR(0xbc, 64, const char __user *)