Re: [PATCH net v4 2/2] vhost_net: fix tx queue stuck when sendmsg fails

[Jason Wang]

On 2020/12/24 下午5:09, wangyunjian wrote:
-EAGAIN and -ENOBFS are fine. But I don't see how -ENOMEM can be returned.
The tun_build_skb() and tun_napi_alloc_frags() return -ENOMEM when memory
allocation fails.

Thanks


You're right. So I think we need check them all.

In the future, we need think of a better way. I feel such check is kind 
of fragile since people may modify core sock codes without having a look 
at what vhost does.

Thanks