1 files changed, 1 insertions, 2 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 4f8f75d9e839..0334452a7be1 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -748,8 +748,7 @@ struct btrfs_fs_info {
 	struct rb_root block_group_cache_tree;
 
 	/* keep track of unallocated space */
-	spinlock_t free_chunk_lock;
-	u64 free_chunk_space;
+	atomic64_t free_chunk_space;
 
 	struct extent_io_tree freed_extents[2];
 	struct extent_io_tree *pinned_extents;