Btrfs: Add locking around volume management (device add/remove/balance)

[deliverable/linux.git] / fs / btrfs / ctree.h

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index a28796482b4a64abc51fa0fd0d6fb72dfd1630c4..f3783dbd9b600362020dd8296a06a290c39d50f0 100644 (file)
--- 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;