Re: [PATCH -v4 2/2] lib, Add lock-less NULL terminated single list

[Peter Zijlstra <peterz@infradead.org>]

On Tue, 2010-11-16 at 08:53 +0800, Huang Ying wrote:
> +/**
> + * llist_del_all - delete all entries from lock-less list
> + * @head:      the head of lock-less list to delete all entries
> + *
> + * If list is empty, return NULL, otherwise, delete all entries and
> + * return the pointer to the first entry.
> + */
> +struct llist_node *llist_del_all(struct llist_head *head)
> +{
> +       return xchg(&head->first, NULL);
> +}
> +EXPORT_SYMBOL_GPL(llist_del_all); 

Its not del_all, since it returns the actual list. move or splice might
be better names.