Re: [PATCH] io_uring/napi: remove duplicate io_napi_entry timeout assignation

[Olivier Langlois <olivier@trillion01.com>]

On Mon, 2024-08-12 at 14:40 -0600, Jens Axboe wrote:
> 
> 
> > 3. I am surprised to notice that in __io_napi_do_busy_loop(),
> > list_for_each_entry_rcu() is called to traverse the list but the
> > regular methods list_del() and list_add_tail() are called to update
> > the
> > list instead of their RCU variant.
> 
> Should all just use rcu variants.
> 
> Here's a mashup of the changes. Would be great if you can test - I'll
> do
> some too, but always good with more than one person testing as it
> tends
> to hit more cases.
> 
Jens,

I have integrated our RCU corrections into
https://lore.kernel.org/io-uring/5fc9dd07e48a7178f547ed1b2aaa0814607fa246.1723567469.git.olivier@trillion01.com/T/#u

and my testing so far is not showing any problems...
but I have a very static setup...
I had no issues too without the corrections...