Re: [PATCH rdma-next] RDMA/srpt: Fix RCU debug build error

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On Tue, 2018-01-23 at 14:50 -0800, Paul E. McKenney wrote:
> 
>     rcu: Fix init_rcu_head() comment.
>     
>     The current (and implicit) comment header for init_rcu_head() and
>     destroy_rcu_head() incorrectly says that they are not needed for
>     statically allocated rcu_head structures.  This commit therefore
>     fixes this comment.
>     
>     Reported-by: Bart Van Assche <Bart.VanAssche@xxxxxxx>
>     Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
> 
> diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
> index 043d04784675..36360d07f25b 100644
> --- a/include/linux/rcupdate.h
> +++ b/include/linux/rcupdate.h
> @@ -214,10 +214,12 @@ do { \
>  #endif
>  
>  /*
> - * init_rcu_head_on_stack()/destroy_rcu_head_on_stack() are needed for dynamic
> - * initialization and destruction of rcu_head on the stack. rcu_head structures
> - * allocated dynamically in the heap or defined statically don't need any
> - * initialization.
> + * The init_rcu_head_on_stack() and destroy_rcu_head_on_stack() calls
> + * are needed for dynamic initialization and destruction of rcu_head
> + * on the stack, and init_rcu_head()/destroy_rcu_head() are needed for
> + * dynamic initialization and destruction of statically allocated rcu_head
> + * structures.  However, rcu_head structures allocated dynamically in the
> + * heap don't need any initialization.
>   */
>  #ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD
>  void init_rcu_head(struct rcu_head *head);

Thanks!

Feel free to add:

Reviewed-by: Bart Van Assche <bart.vanassche@xxxxxxx>



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