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-rw-r--r--fs/btrfs/ctree.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index a28796482b4a..f3783dbd9b60 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -523,6 +523,7 @@ struct btrfs_fs_info {
struct mutex alloc_mutex;
struct mutex chunk_mutex;
struct mutex drop_mutex;
+ struct mutex volume_mutex;
struct list_head trans_list;
struct list_head hashers;
struct list_head dead_roots;