static void __io_req_free_batch_flush(struct io_ring_ctx *ctx,
				      struct req_batch *rb)
{
	kmem_cache_free_bulk(req_cachep, rb->to_free, rb->reqs);
	percpu_ref_put_many(&ctx->refs, rb->to_free);
	rb->to_free = 0;
}
static void __io_req_free_batch_flush(struct io_ring_ctx *ctx,
				      struct req_batch *rb)
{
	kmem_cache_free_bulk(req_cachep, rb->to_free, rb->reqs);
	percpu_ref_put_many(&ctx->refs, rb->to_free);
	rb->to_free = 0;
}