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Date:   Mon, 04 Jul 2022 10:20:12 +0000
To:     Rick Lindsley <>
Subject: Re: [PATCH net v2] ibmvnic: Properly dispose of all skbs during a


This patch was applied to netdev/net.git (master)
by David S. Miller <>:

On Sat,  2 Jul 2022 03:37:12 -0700 you wrote:
> During a reset, there may have been transmits in flight that are no
> longer valid and cannot be fulfilled.  Resetting and clearing the
> queues is insufficient; each skb also needs to be explicitly freed
> so that upper levels are not left waiting for confirmation of a
> transmit that will never happen.  If this happens frequently enough,
> the apparent backlog will cause TCP to begin "congestion control"
> unnecessarily, culminating in permanently decreased throughput.
> [...]

Here is the summary with links:
  - [net,v2] ibmvnic: Properly dispose of all skbs during a failover.

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