1 files changed, 14 insertions, 0 deletions

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index d60923967347..4f0e1d06c384 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -716,6 +716,7 @@ static int __setup_root(u32 nodesize, u32 leafsize, u32 sectorsize,
         root->node = NULL;
         root->inode = NULL;
         root->commit_root = NULL;
+        root->ref_tree = NULL;
         root->sectorsize = sectorsize;
         root->nodesize = nodesize;
         root->leafsize = leafsize;
@@ -1165,12 +1166,19 @@ static int transaction_kthread(void *arg)
                 vfs_check_frozen(root->fs_info->sb, SB_FREEZE_WRITE);
                 mutex_lock(&root->fs_info->transaction_kthread_mutex);
 
+                printk("btrfs: total reference cache size %Lu\n",
+                        root->fs_info->total_ref_cache_size);
+
                 mutex_lock(&root->fs_info->trans_mutex);
                 cur = root->fs_info->running_transaction;
                 if (!cur) {
                         mutex_unlock(&root->fs_info->trans_mutex);
                         goto sleep;
                 }
+
+                printk("btrfs: running reference cache size %Lu\n",
+                        root->fs_info->running_ref_cache_size);
+
                 now = get_seconds();
                 if (now < cur->start_time || now - cur->start_time < 30) {
                         mutex_unlock(&root->fs_info->trans_mutex);
@@ -1233,6 +1241,7 @@ struct btrfs_root *open_ctree(struct super_block *sb,
         spin_lock_init(&fs_info->hash_lock);
         spin_lock_init(&fs_info->delalloc_lock);
         spin_lock_init(&fs_info->new_trans_lock);
+        spin_lock_init(&fs_info->ref_cache_lock);
 
         init_completion(&fs_info->kobj_unregister);
         fs_info->tree_root = tree_root;
@@ -1699,6 +1708,11 @@ int close_ctree(struct btrfs_root *root)
                 printk("btrfs: at unmount delalloc count %Lu\n",
                        fs_info->delalloc_bytes);
         }
+        if (fs_info->total_ref_cache_size) {
+                printk("btrfs: at umount reference cache size %Lu\n",
+                        fs_info->total_ref_cache_size);
+        }
+        
         if (fs_info->extent_root->node)
                 free_extent_buffer(fs_info->extent_root->node);