> +/*
> + * Find and return io_wq with given id and grab a reference to it.
> + */
> +struct io_wq *io_wq_create_id(unsigned bounded, struct io_wq_data *data,
> + unsigned int id)
> +{
> + struct io_wq *wq, *ret = NULL;
> +
> + mutex_lock(&wq_lock);
> + list_for_each_entry(wq, &wq_list, wq_list) {
> + if (id != wq->id)
> + continue;
> + if (data->creds != wq->creds || data->user != wq->user)
> + continue;
> + if (data->get_work != wq->get_work ||
> + data->put_work != wq->put_work)
> + continue;
> + if (!refcount_inc_not_zero(&wq->use_refs))
> + continue;
> + ret = wq;
> + break;
> + }
> + mutex_unlock(&wq_lock);
Isn't there a more efficient ida_find function in order to avoid
the loop, which won't really scale in the long run.
metze
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