netdev - Re: [Patch net-next 2/3] net_sched: plug in qdisc ops change_tx_queue

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Date:   Tue, 23 Jan 2018 10:07:12 -0800
From:   Cong Wang <xiyou.wangcong@...il.com>
To:     John Fastabend <john.fastabend@...il.com>
Cc:     Linux Kernel Network Developers <netdev@...r.kernel.org>
Subject: Re: [Patch net-next 2/3] net_sched: plug in qdisc ops change_tx_queue_len

On Mon, Jan 22, 2018 at 2:44 PM, Cong Wang <xiyou.wangcong@...il.com> wrote:
>
> Good point, but netdev_for_each_tx_queue() doesn't handle errors
> in current code base, it is not trivial to make it returning int to reflect
> errors, since we have to rollback a partial failure too.

I think for now we can just check for errors but not rollback,
at least attach_default_qdiscs() does not rollback either.
And I will add a comment saying we need to do it in future.