diff --git a/fs/xfs/xfs_reflink.h b/fs/xfs/xfs_reflink.h
index 9d1ed9bb0bee..683c1841e640 100644
--- a/fs/xfs/xfs_reflink.h
+++ b/fs/xfs/xfs_reflink.h
@@ -48,9 +48,6 @@ extern int xfs_reflink_end_cow(struct xfs_inode *ip, xfs_off_t offset,
 int xfs_reflink_end_atomic_cow(struct xfs_inode *ip, xfs_off_t offset,
 		xfs_off_t count);
 extern int xfs_reflink_recover_cow(struct xfs_mount *mp);
-extern loff_t xfs_reflink_remap_range(struct file *file_in, loff_t pos_in,
-		struct file *file_out, loff_t pos_out, loff_t len,
-		unsigned int remap_flags);
 extern int xfs_reflink_inode_has_shared_extents(struct xfs_trans *tp,
 		struct xfs_inode *ip, bool *has_shared);
 extern int xfs_reflink_clear_inode_flag(struct xfs_inode *ip,