netdev - Re: [PATCH] vsock/virtio: add support for MSG

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Message-ID: <a7a77f0b-a658-6e46-3381-3dfea55b14d1@gmail.com>
Date:   Fri, 27 Sep 2019 06:37:00 -0700
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     Stefano Garzarella <sgarzare@...hat.com>,
        Eric Dumazet <eric.dumazet@...il.com>,
        Matias Ezequiel Vara Larsen <matiasevara@...il.com>
Cc:     stefanha@...hat.com, davem@...emloft.net, kvm@...r.kernel.org,
        virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] vsock/virtio: add support for MSG_PEEK



On 9/27/19 1:55 AM, Stefano Garzarella wrote:

> Good catch!
> 
> Maybe we can solve in this way:
> 
> 	list_for_each_entry(pkt, &vvs->rx_queue, list) {
> 		size_t off = pkt->off;
> 
> 		if (total == len)
> 			break;
> 
> 		while (total < len && off < pkt->len) {
> 			/* using 'off' instead of 'pkt->off' */
> 			...
> 
> 			total += bytes;
> 			off += bytes;
> 		}
> 	}
> 
> What do you think?
>

Maybe, but I need to see a complete patch, evil is in the details :)