Btrfs: fix the file clone ioctl for preallocated extents

1 files changed, 4 insertions, 2 deletions

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index eff18f5b5362..9f4db848db10 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1028,7 +1028,8 @@ static long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
                                                 struct btrfs_file_extent_item);
                         comp = btrfs_file_extent_compression(leaf, extent);
                         type = btrfs_file_extent_type(leaf, extent);
-                        if (type == BTRFS_FILE_EXTENT_REG) {
+                        if (type == BTRFS_FILE_EXTENT_REG ||
+                            type == BTRFS_FILE_EXTENT_PREALLOC) {
                                 disko = btrfs_file_extent_disk_bytenr(leaf,
                                                                       extent);
                                 diskl = btrfs_file_extent_disk_num_bytes(leaf,
@@ -1051,7 +1052,8 @@ static long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
                         new_key.objectid = inode->i_ino;
                         new_key.offset = key.offset + destoff - off;
 
-                        if (type == BTRFS_FILE_EXTENT_REG) {
+                        if (type == BTRFS_FILE_EXTENT_REG ||
+                            type == BTRFS_FILE_EXTENT_PREALLOC) {
                                 ret = btrfs_insert_empty_item(trans, root, path,
                                                               &new_key, size);
                                 if (ret)