diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index afde837644e55f3e7c7db58ea693d37680797ca3..18cc23d164a80b7ccc717a83499214b81f395896 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1186,6 +1186,9 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
 			if (newer_off == (u64)-1)
 				break;
 
+			if (ret > 0)
+				i += ret;
+
 			newer_off = max(newer_off + 1,
 					(u64)i << PAGE_CACHE_SHIFT);