> + spin_lock(&block_group->tree_lock);
> + if (btrfs_block_group_free_space(block_group) !=
This function call can be replaced by block_group->free_space, so
we don't have to iterate the tree.
(This function gets removed in my patchset for inode number caching)
> + (block_group->key.offset - used - block_group->bytes_super)) {
> + spin_unlock(&block_group->tree_lock);
> + printk(KERN_ERR "block group %llu has an wrong amount of free "
> + "space\n", block_group->key.objectid);
> + ret = 0;
> + goto free_cache;
> + }
> + spin_unlock(&block_group->tree_lock);
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