Btrfs: introduce grab/put functions for the root of the fs/file tree

[platform/adaptation/renesas_rcar/renesas_kernel.git] / fs / btrfs / ctree.h

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index a84e59b..91a8ca7 100644 (file)
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1746,6 +1746,7 @@ struct btrfs_root {
        int force_cow;
 
        spinlock_t root_item_lock;
+       atomic_t refs;
 };
 
 struct btrfs_ioctl_defrag_range_args {