On Wed, Mar 02, 2022 at 10:27:53AM +0800, Wang Yufen wrote:
> diff --git a/net/ipv4/tcp_bpf.c b/net/ipv4/tcp_bpf.c
> index 9b9b02052fd3..ac9f491cc139 100644
> --- a/net/ipv4/tcp_bpf.c
> +++ b/net/ipv4/tcp_bpf.c
> @@ -421,8 +421,10 @@ static int tcp_bpf_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
> osize = msg_tx->sg.size;
> err = sk_msg_alloc(sk, msg_tx, msg_tx->sg.size + copy, msg_tx->sg.end - 1);
> if (err) {
> - if (err != -ENOSPC)
> + if (err != -ENOSPC) {
> + sk_msg_trim(sk, msg_tx, osize);
> goto wait_for_memory;
Is it a good idea to handle this logic inside sk_msg_alloc()?
