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SubjectRe: [PATCH rcu v2 15/20] kernel/notifier: Remove CONFIG_SRCU
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On 1/13/2023 1:11 AM, Paul E. McKenney wrote:
> Now that the SRCU Kconfig option is unconditionally selected, there is
> no longer any point in conditional compilation based on CONFIG_SRCU.
> Therefore, remove the #ifdef.
>
> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
> Cc: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
> Cc: Borislav Petkov <bp@suse.de>
> Cc: Alan Stern <stern@rowland.harvard.edu>
> Reviewed-by: John Ogness <john.ogness@linutronix.de>

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>


> ---
> kernel/notifier.c | 3 ---
> 1 file changed, 3 deletions(-)
>
> diff --git a/kernel/notifier.c b/kernel/notifier.c
> index ab75637fd904f..d353e4b5402d7 100644
> --- a/kernel/notifier.c
> +++ b/kernel/notifier.c
> @@ -456,7 +456,6 @@ int raw_notifier_call_chain(struct raw_notifier_head *nh,
> }
> EXPORT_SYMBOL_GPL(raw_notifier_call_chain);
>
> -#ifdef CONFIG_SRCU
> /*
> * SRCU notifier chain routines. Registration and unregistration
> * use a mutex, and call_chain is synchronized by SRCU (no locks).
> @@ -573,8 +572,6 @@ void srcu_init_notifier_head(struct srcu_notifier_head *nh)
> }
> EXPORT_SYMBOL_GPL(srcu_init_notifier_head);
>
> -#endif /* CONFIG_SRCU */
> -
> static ATOMIC_NOTIFIER_HEAD(die_chain);
>
> int notrace notify_die(enum die_val val, const char *str,

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