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Date:   Thu, 13 Apr 2023 07:04:08 -0700
From:   Jakub Kicinski <kuba@kernel.org>
To:     Jason Wang <jasowang@redhat.com>
Cc:     mst@redhat.com, davem@davemloft.net, edumazet@google.com,
        pabeni@redhat.com, virtualization@lists.linux-foundation.org,
        linux-kernel@vger.kernel.org, maxime.coquelin@redhat.com,
        alvaro.karsz@solid-run.com, eperezma@redhat.com,
        xuanzhuo@linux.alibaba.com, david.marchand@redhat.com
Subject: Re: [PATCH net-next V2 0/2] virtio-net: don't busy poll for cvq
 command
Message-ID: <20230413070408.630fa731@kernel.org>
In-Reply-To: <20230413064027.13267-1-jasowang@redhat.com>
References: <20230413064027.13267-1-jasowang@redhat.com>
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On Thu, 13 Apr 2023 14:40:25 +0800 Jason Wang wrote:
> The code used to busy poll for cvq command which turns out to have
> several side effects:
> 
> 1) infinite poll for buggy devices
> 2) bad interaction with scheduler
> 
> So this series tries to use sleep instead of busy polling. In this
> version, I take a step back: the hardening part is not implemented and
> leave for future investigation. We use to aggree to use interruptible
> sleep but it doesn't work for a general workqueue.

CC: netdev missing?