[Devel] [PATCH hci-8.1 4/8] ms/mptcp: let the retrans scheduler do its job

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> From: Paolo Abeni <pabeni at redhat.com>
> 
> Currently the MPTCP core enforces that when MPTCP-level retrans timer
> fires, at most a single dfrag is retransmitted. In some corner-cases, it
> may be necessary to retransmit multiple dfrags, and the MPTCP socket
> will need to wait multiple retrans timeout to accomplish that.
> 
> Remove the mentioned constraint, allowing to transmit multiple dfrags
> per retrans period, as long as the scheduler keeps selecting subflows
> for retransmissions and pending data is available in the rtx queue.
> The default scheduler will transmit a dfrag per available subflow.
> 
> Tested-by: Gang Yan <yangang at kylinos.cn>
> Tested-by: Geliang Tang <geliang at kernel.org>
> Acked-by: Geliang Tang <geliang at kernel.org>
> Signed-off-by: Paolo Abeni <pabeni at redhat.com>
> Signed-off-by: Matthieu Baerts (NGI0) <matttbe at kernel.org>
> Link: https://patch.msgid.link/20260807-net-next-mptcp-oooq-pruning-v3-3-dbc1eb853cc3@kernel.org
> Signed-off-by: Jakub Kicinski <kuba at kernel.org>
> (cherry picked from commit 96d846e3e2a7ea01ff8a584a0b5e2a42fa9ccc1e)
> 
> https://virtuozzo.atlassian.net/browse/VSTOR-153491
> Feature: fix ms/net
> Signed-off-by: Eva Kurchatova <eva.kurchatova at virtuozzo.com>

Sashiko has reviewed this patch and found no issues. It looks great!

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Sashiko AI review · https://sashiko.vzint.dev/#/patchset/20261106030306.16014-1-eva.kurchatova@virtuozzo.com?part=4