Thread (17 messages) 17 messages, 2 authors, 6d ago

Re: [PATCH net-next 01/15] batman-adv: create hardif only for netdevs that are part of a mesh

From: patchwork-bot+netdevbpf@kernel.org
Date: 2026-07-02 08:41:44
Also in: batman

Hello:

This series was applied to netdev/net-next.git (main)
by Sven Eckelmann [off-list ref]:

On Tue, 30 Jun 2026 16:06:09 +0200 you wrote:
From: Nora Schiffer <redacted>

batman-adv is using netdev notifiers to create a hard_iface struct for
every Ethernet-like netdev in the system. These hardifs are tracked in a
global linked list, which results in a few performance issues:

Lookups in this list are O(n) in the total number of netdevs. As a
hardif is looked up when a netdev is removed, this also takes O(n) in
the number of netdevs, and removing n netdevs may take O(n^2). This
slowdown will always happen when the batman-adv module is loaded, no
mesh needs to be active.

[...]
Here is the summary with links:
  - [net-next,01/15] batman-adv: create hardif only for netdevs that are part of a mesh
    https://git.kernel.org/netdev/net-next/c/fcba102e0e4a
  - [net-next,02/15] batman-adv: remove global hardif list
    https://git.kernel.org/netdev/net-next/c/49e9de6e124f
  - [net-next,03/15] batman-adv: make hard_iface->mesh_iface immutable
    https://git.kernel.org/netdev/net-next/c/f846e779532e
  - [net-next,04/15] batman-adv: remove BATADV_IF_NOT_IN_USE hardif state
    https://git.kernel.org/netdev/net-next/c/48ea7b6b7b94
  - [net-next,05/15] batman-adv: move hardif generation counter into batadv_priv
    https://git.kernel.org/netdev/net-next/c/cbda6a6cf2a5
  - [net-next,06/15] batman-adv: drop unneeded goto and initialization from batadv_hardif_disable_interface()
    https://git.kernel.org/netdev/net-next/c/2b429dbc50b4
  - [net-next,07/15] batman-adv: drop NULL check for immutable hardif->mesh_iface
    https://git.kernel.org/netdev/net-next/c/b58c36b804f4
  - [net-next,08/15] Revert "batman-adv: v: stop OGMv2 on disabled interface"
    https://git.kernel.org/netdev/net-next/c/5fa5f64fc018
  - [net-next,09/15] batman-adv: iv: drop migration check for batadv_hard_iface
    https://git.kernel.org/netdev/net-next/c/ba2d97e8736e
  - [net-next,10/15] batman-adv: tvlv: extract tvlv header iterator
    https://git.kernel.org/netdev/net-next/c/278e5890704c
  - [net-next,11/15] batman-adv: tp_meter: simplify unordered ack calculation
    https://git.kernel.org/netdev/net-next/c/71b7987ec001
  - [net-next,12/15] batman-adv: tp_meter: combine adjacent/overlapping unacked entries
    https://git.kernel.org/netdev/net-next/c/936a1c10cece
  - [net-next,13/15] batman-adv: tp_meter: keep unacked list for receivers
    https://git.kernel.org/netdev/net-next/c/3bbb8b94217a
  - [net-next,14/15] batman-adv: tp_meter: adjust name of receiver lock
    https://git.kernel.org/netdev/net-next/c/6cd45ef4dfa5
  - [net-next,15/15] batman-adv: tp_meter: delay allocation of unacked entry
    https://git.kernel.org/netdev/net-next/c/247691642fd4

You are awesome, thank you!
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