Btrfs: Leaf reference cache update

[net-next-2.6.git] / fs / btrfs / ctree.h

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 34ed23d64eb5e74443880c95847010ebdaceddb2..4eca0aa1ce74cbafab03c45133492f3e236d2297 100644 (file)
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -594,7 +594,6 @@ struct btrfs_fs_info {
 
        spinlock_t ref_cache_lock;
        u64 total_ref_cache_size;
-       u64 running_ref_cache_size;
 
        u64 avail_data_alloc_bits;
        u64 avail_metadata_alloc_bits;
@@ -606,10 +605,18 @@ struct btrfs_fs_info {
        void *bdev_holder;
 };
 
+struct btrfs_leaf_ref_tree {
+       struct rb_root root;
+       struct btrfs_leaf_ref *last;
+       struct list_head list;
+       spinlock_t lock;
+};
+
 /*
  * in ram representation of the tree.  extent_root is used for all allocations
  * and for the extent tree extent_root root.
  */
+struct dirty_root;
 struct btrfs_root {
        struct extent_buffer *node;
 
@@ -618,6 +625,8 @@ struct btrfs_root {
 
        struct extent_buffer *commit_root;
        struct btrfs_leaf_ref_tree *ref_tree;
+       struct btrfs_leaf_ref_tree ref_tree_struct;
+       struct dirty_root *dirty_root;
 
        struct btrfs_root_item root_item;
        struct btrfs_key root_key;