On Wed, May 28, 2025 at 2:55 AM Tejun Heo <t...@kernel.org> wrote:
>
> Hello,
>
> On Sun, May 25, 2025 at 11:51:55AM +0800, Jason Xing wrote:
> > Sorry to revive the old thread! I noticed this change because I've
> > been doing an investigation around TSQ recently. I'm very cautious
> > about the change in the core/sensitive part of the networking area
> > because it might affect some corner cases beyond our limited test,
> > even though I've tested many rounds and no regression results
> > (including the latency between tcp_wfree and tcp_tsq_handler) show up.
> > My main concern is what the exact benefit/improvement it could bring
> > with the change applied since your BH workqueue commit[1] says the
> > tasklet mechanism has some flaws. I'd like to see if I can
> > reproduce/verify it.
>
> There won't be any behavioral benefits. It's mostly that it'd be great to
> get rid of tasklets with something which is more generic, so if BH workqueue
> doesn't regress, we want to keep moving users to BH workqueue until all
> tasklet users are gone and then remove tasklet.

I see. So far I haven't see any side effect especially with testing
bulk transfer/multi-thread transfer, so if you're willing to repost it
after the merge window, please feel free to add:

Reviewed-by: Jason Xing <kerneljasonx...@gmail.com>

Thanks,
Jason

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