[Cake] [PATCH net] sched: sch_cake: fix bulk flow accounting logic for host fairness

[patchwork-bot+netdevbpf at kernel.org]

Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni at redhat.com>:

On Tue,  3 Sep 2024 18:08:45 +0200 you wrote:
> In sch_cake, we keep track of the count of active bulk flows per host,
> when running in dst/src host fairness mode, which is used as the
> round-robin weight when iterating through flows. The count of active
> bulk flows is updated whenever a flow changes state.
> 
> This has a peculiar interaction with the hash collision handling: when a
> hash collision occurs (after the set-associative hashing), the state of
> the hash bucket is simply updated to match the new packet that collided,
> and if host fairness is enabled, that also means assigning new per-host
> state to the flow. For this reason, the bulk flow counters of the
> host(s) assigned to the flow are decremented, before new state is
> assigned (and the counters, which may not belong to the same host
> anymore, are incremented again).
> 
> [...]

Here is the summary with links:
  - [net] sched: sch_cake: fix bulk flow accounting logic for host fairness
    https://git.kernel.org/netdev/net/c/546ea84d07e3

You are awesome, thank you!
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