On 5/21/23 7:07 PM, Ze Gao wrote:

Oops, I missed that. Thanks for pointing that out, which I thought is
conditional use of rcu_is_watching before.

One last point, I think we should double check on this
      "fentry does not filter with !rcu_is_watching"
as quoted from Yonghong and argue whether it needs
the same check for fentry as well.

I would suggest that we address rcu_is_watching issue for fentry
only if we do have a reproducible case to show something goes wrong...

Regards,
Ze