Btrfs-progs: update ioctl.h to support clone range ioctl

Added missing btrfs_ioctl_clone_range_args and BTRFS_IOC_CLONE_RANGE
to ioctl.h

Signed-off-by: Alexander Block <ablock84@googlemail.com>

diff --git a/ioctl.h b/ioctl.h
index 6670e08..023ca4c 100644 (file)
--- a/ioctl.h
+++ b/ioctl.h
@@ -281,6 +281,13 @@ struct btrfs_ioctl_logical_ino_args {
                                   struct btrfs_ioctl_vol_args)
 #define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
                                   struct btrfs_ioctl_vol_args)
+
+struct btrfs_ioctl_clone_range_args {
+       __s64 src_fd;
+       __u64 src_offset, src_length;
+       __u64 dest_offset;
+};
+
 /* trans start and trans end are dangerous, and only for
  * use by applications that know how to avoid the
  * resulting deadlocks
@@ -296,7 +303,8 @@ struct btrfs_ioctl_logical_ino_args {
                                   struct btrfs_ioctl_vol_args)
 #define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, \
                                   struct btrfs_ioctl_vol_args)
-/* 13 is for CLONE_RANGE */
+#define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
+                                  struct btrfs_ioctl_clone_range_args)
 #define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \
                                   struct btrfs_ioctl_vol_args)
 #define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \