Btrfs: add nested locking mode for paths

[mirror_ubuntu-artful-kernel.git] / fs / btrfs / delayed-ref.h

diff --git a/fs/btrfs/delayed-ref.h b/fs/btrfs/delayed-ref.h
index 50e3cf92fbdac1610261e02c314a580b71c2f9ab..a5fb2bc83732e5f8946e212c4ac26fe6b4e41957 100644 (file)
--- a/fs/btrfs/delayed-ref.h
+++ b/fs/btrfs/delayed-ref.h
@@ -98,19 +98,15 @@ struct btrfs_delayed_ref_head {
 
 struct btrfs_delayed_tree_ref {
        struct btrfs_delayed_ref_node node;
-       union {
-               u64 root;
-               u64 parent;
-       };
+       u64 root;
+       u64 parent;
        int level;
 };
 
 struct btrfs_delayed_data_ref {
        struct btrfs_delayed_ref_node node;
-       union {
-               u64 root;
-               u64 parent;
-       };
+       u64 root;
+       u64 parent;
        u64 objectid;
        u64 offset;
 };
@@ -151,27 +147,26 @@ static inline void btrfs_put_delayed_ref(struct btrfs_delayed_ref_node *ref)
        }
 }
 
-int btrfs_add_delayed_tree_ref(struct btrfs_trans_handle *trans,
+int btrfs_add_delayed_tree_ref(struct btrfs_fs_info *fs_info,
+                              struct btrfs_trans_handle *trans,
                               u64 bytenr, u64 num_bytes, u64 parent,
                               u64 ref_root, int level, int action,
-                              struct btrfs_delayed_extent_op *extent_op);
-int btrfs_add_delayed_data_ref(struct btrfs_trans_handle *trans,
+                              struct btrfs_delayed_extent_op *extent_op,
+                              int for_cow);
+int btrfs_add_delayed_data_ref(struct btrfs_fs_info *fs_info,
+                              struct btrfs_trans_handle *trans,
                               u64 bytenr, u64 num_bytes,
                               u64 parent, u64 ref_root,
                               u64 owner, u64 offset, int action,
-                              struct btrfs_delayed_extent_op *extent_op);
-int btrfs_add_delayed_extent_op(struct btrfs_trans_handle *trans,
+                              struct btrfs_delayed_extent_op *extent_op,
+                              int for_cow);
+int btrfs_add_delayed_extent_op(struct btrfs_fs_info *fs_info,
+                               struct btrfs_trans_handle *trans,
                                u64 bytenr, u64 num_bytes,
                                struct btrfs_delayed_extent_op *extent_op);
 
 struct btrfs_delayed_ref_head *
 btrfs_find_delayed_ref_head(struct btrfs_trans_handle *trans, u64 bytenr);
-int btrfs_delayed_ref_pending(struct btrfs_trans_handle *trans, u64 bytenr);
-int btrfs_update_delayed_ref(struct btrfs_trans_handle *trans,
-                         u64 bytenr, u64 num_bytes, u64 orig_parent,
-                         u64 parent, u64 orig_ref_root, u64 ref_root,
-                         u64 orig_ref_generation, u64 ref_generation,
-                         u64 owner_objectid, int pin);
 int btrfs_delayed_ref_lock(struct btrfs_trans_handle *trans,
                           struct btrfs_delayed_ref_head *head);
 int btrfs_find_ref_cluster(struct btrfs_trans_handle *trans,