Re: [PATCH 3/7] rcu: fix header guard for rcu_all_qs()

[Sebastian Andrzej Siewior]

On 2024-10-09 09:54:07 [-0700], Ankur Arora wrote:
> rcu_all_qs() is defined for !CONFIG_PREEMPT_RCU but the declaration
> is conditioned on CONFIG_PREEMPTION.
> 
> With CONFIG_PREEMPT_LAZY, CONFIG_PREEMPTION=y does not imply
> CONFIG_PREEMPT_RCU=y.

>From kernel/rcu/Kconfig:
| config PREEMPT_RCU
|         bool
|         default y if PREEMPTION

this looks like PREEMPT_RCU implies PREEMPTION.

> Decouple the two.

Sebastian