diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 010aec8..a9c4636 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1073,12 +1073,6 @@ static noinline int prepare_pages(struct btrfs_root
*root, struct file *file,
start_pos = pos ~((u64)root-sectorsize - 1);
last_pos
When we write some data to the place that is beyond the end of the file
in direct I/O mode, a data hole will be created. And Btrfs should insert
a file extent item that point to this hole into the fs tree. But unfortunately
Btrfs forgets doing it.
The following is a simple way to reproduce it:
#
