1 files changed, 10 insertions, 0 deletions

diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 88f866f85e7a..0b8f36d4400a 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -186,6 +186,9 @@ static struct btrfs_trans_handle *start_transaction(struct btrfs_root *root,
         h->alloc_exclude_start = 0;
         h->delayed_ref_updates = 0;
 
+        if (!current->journal_info)
+                current->journal_info = h;
+
         root->fs_info->running_transaction->use_count++;
         record_root_in_trans(h, root);
         mutex_unlock(&root->fs_info->trans_mutex);
@@ -317,6 +320,9 @@ static int __btrfs_end_transaction(struct btrfs_trans_handle *trans,
                 wake_up(&cur_trans->writer_wait);
         put_transaction(cur_trans);
         mutex_unlock(&info->trans_mutex);
+
+        if (current->journal_info == trans)
+                current->journal_info = NULL;
         memset(trans, 0, sizeof(*trans));
         kmem_cache_free(btrfs_trans_handle_cachep, trans);
 
@@ -743,6 +749,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
         memcpy(&pending->root_key, &key, sizeof(key));
 fail:
         kfree(new_root_item);
+        btrfs_unreserve_metadata_space(root, 6);
         return ret;
 }
 
@@ -1059,6 +1066,9 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
 
         mutex_unlock(&root->fs_info->trans_mutex);
 
+        if (current->journal_info == trans)
+                current->journal_info = NULL;
+
         kmem_cache_free(btrfs_trans_handle_cachep, trans);
         return ret;
 }