Re: [PATCH rcu v2 09/20] fs: Remove CONFIG_SRCU

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On Thu, 2023-01-12 at 16:11 -0800, 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 and throw away the #else clause.
> 
> Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
> Cc: Jeff Layton <jlayton@xxxxxxxxxx>
> Cc: Chuck Lever <chuck.lever@xxxxxxxxxx>
> Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>
> Cc: <linux-fsdevel@xxxxxxxxxxxxxxx>
> Reviewed-by: John Ogness <john.ogness@xxxxxxxxxxxxx>
> ---
>  fs/locks.c | 25 -------------------------
>  1 file changed, 25 deletions(-)
> 
> diff --git a/fs/locks.c b/fs/locks.c
> index 8f01bee177159..1909a9de242c8 100644
> --- a/fs/locks.c
> +++ b/fs/locks.c
> @@ -1889,7 +1889,6 @@ int generic_setlease(struct file *filp, long arg, struct file_lock **flp,
>  }
>  EXPORT_SYMBOL(generic_setlease);
>  
> -#if IS_ENABLED(CONFIG_SRCU)
>  /*
>   * Kernel subsystems can register to be notified on any attempt to set
>   * a new lease with the lease_notifier_chain. This is used by (e.g.) nfsd
> @@ -1923,30 +1922,6 @@ void lease_unregister_notifier(struct notifier_block *nb)
>  }
>  EXPORT_SYMBOL_GPL(lease_unregister_notifier);
>  
> -#else /* !IS_ENABLED(CONFIG_SRCU) */
> -static inline void
> -lease_notifier_chain_init(void)
> -{
> -}
> -
> -static inline void
> -setlease_notifier(long arg, struct file_lock *lease)
> -{
> -}
> -
> -int lease_register_notifier(struct notifier_block *nb)
> -{
> -	return 0;
> -}
> -EXPORT_SYMBOL_GPL(lease_register_notifier);
> -
> -void lease_unregister_notifier(struct notifier_block *nb)
> -{
> -}
> -EXPORT_SYMBOL_GPL(lease_unregister_notifier);
> -
> -#endif /* IS_ENABLED(CONFIG_SRCU) */
> -
>  /**
>   * vfs_setlease        -       sets a lease on an open file
>   * @filp:	file pointer

Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>




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