On Wed, Apr 18, 2012 at 01:29:46PM +0200, Jan Schmidt wrote:
> I think the correct way to fix this is:
>
> diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
> index a844204..9af261a 100644
> --- a/fs/btrfs/extent-tree.c
> +++ b/fs/btrfs/extent-tree.c
> @@ -2450,7 +2450,6 @@ again:
>
> ret = run_clustered_refs(trans, root, &cluster);
> if (ret < 0) {
> - spin_unlock(&delayed_refs->lock);
> btrfs_abort_transaction(trans, root, ret);
> return ret;
> }
That's another way to fix it, but I'd rather see the lock/unlock
balanced within a function, and in this case the extra lock does not
hurt as it's a rare codepath.
david
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