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-rw-r--r--fs/btrfs/free-space-tree.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/free-space-tree.h b/fs/btrfs/free-space-tree.h
index 22b7602bde25..360d50e1cdea 100644
--- a/fs/btrfs/free-space-tree.h
+++ b/fs/btrfs/free-space-tree.h
@@ -6,6 +6,8 @@
#ifndef BTRFS_FREE_SPACE_TREE_H
#define BTRFS_FREE_SPACE_TREE_H
+struct btrfs_caching_control;
+
/*
* The default size for new free space bitmap items. The last bitmap in a block
* group may be truncated, and none of the free space tree code assumes that