Re: [PATCH mptcp-next v2 2/3] mptcp: allow overridden write_space to be invoked

[Matthieu Baerts <matttbe@kernel.org>]

Hi Geliang,

On 03/02/2026 07:54, Geliang Tang wrote:
> Hi Matt, Mat, Paolo,
> 
> On Sun, 2026-01-04 at 13:29 +0800, Geliang Tang wrote:
>> From: Geliang Tang <tanggeliang@kylinos.cn>
>>
>> psock may override its own sk_write_space functions. This patch
>> ensures
>> that the overridden sk_write_space can be invoked by MPTCP.
>>
>> Note: This patch was initially included in the NVME MPTCP set.
> 
> This patch was initially developed to resolve the "timeout" errors
> observed in the NVMe MPTCP tests described in [1], because NVMe TCP
> overrides its own sk_write_space. During subsequent development, I
> discovered that not only NVMe TCP overrides its own sk_write_space, but
> KTLS and psock also override it. 
> 
> Therefore, this patch is needed in all three series. To reduce
> dependencies between these three series, I propose to merge this patch
> into the mainline first.

Just to be sure, when you say "mainline", do you mean our MPTCP tree
with the export branch?

Because we are at the end of a cycle here, my priority is to flush
patches that are ready or fix issues. If I'm not mistaken, this patch is
needed for new features that are not in our tree, not in net or net-next
trees, right?

Cheers,
Matt
-- 
Sponsored by the NGI0 Core fund.