The commit b37392ea ("Btrfs: cleanup unnecessary parameter
and variant of prepare_pages()") makes it redundant.
Reviewed-by: NDavid Sterba <dsterba@suse.com>
Signed-off-by: NShan Hai <haishan.bai@hotmail.com>
Signed-off-by: NDavid Sterba <dsterba@suse.com>