On Fri, 22 Jul 2022 21:01:50 +0800 Huichao Cai <chcch...@163.com> wrote:
> Some NIC drivers support MBUF_FAST_FREE(Device supports optimization > for fast release of mbufs. When set application must guarantee that > per-queue all mbufs comes from the same mempool and has refcnt = 1) > offload. In order to adapt to this offload function, add this API. > Add some test data for this API. > > Signed-off-by: Huichao Cai <chcch...@163.com> The code should just be checking that refcnt == 1 directly. There are cases where sender passes a cloned mbuf. This is independent of the fast free optimization. Similar to what Linux kernel does with skb_cow().
