Re: [PATCH AUTOSEL 5.15 10/39] net/smc: Transfer remaining wait queue entries during fallback

[Jakub Kicinski]

On Thu, 25 Nov 2021 21:31:27 -0500 Sasha Levin wrote:
> From: Wen Gu <guwen@xxxxxxxxxxxxxxxxx>
> 
> [ Upstream commit 2153bd1e3d3dbf6a3403572084ef6ed31c53c5f0 ]
> 
> The SMC fallback is incomplete currently. There may be some
> wait queue entries remaining in smc socket->wq, which should
> be removed to clcsocket->wq during the fallback.
> 
> For example, in nginx/wrk benchmark, this issue causes an
> all-zeros test result:

Hold this one, please, there is a fix coming: 7a61432dc813 ("net/smc:
Avoid warning of possible recursive locking").