On Mon, Jun 30, 2014 at 06:18:49PM +0200, Oleg Nesterov wrote:
> +static inline void __rcu_lock_acquire(struct lockdep_map *map, unsigned long
> ip)
> {
> + lock_acquire(map, 0, 0, 2, 0, NULL, ip);
> }
> +extern void rcu_lock_acquire(void);
> +extern void rcu_lock_release(void);
> +extern void rcu_lock_acquire_bh(void);
> +extern void rcu_lock_release_bh(void);
> +extern void rcu_lock_acquire_sched(void);
> +extern void rcu_lock_release_sched(void);
> diff --git a/include/linux/srcu.h b/include/linux/srcu.h
> index a2783cb..5c06289 100644
> --- a/include/linux/srcu.h
> +++ b/include/linux/srcu.h
> @@ -219,7 +219,7 @@ static inline int srcu_read_lock(struct srcu_struct *sp)
> __acquires(sp)
> {
> int retval = __srcu_read_lock(sp);
>
> - rcu_lock_acquire(&(sp)->dep_map);
> + __rcu_lock_acquire(&(sp)->dep_map, _THIS_IP_);
> return retval;
> }
Would an srcu_lock_acquire() not make sense here?
In any case, not wrong per se, just a consistency thing that stood out.
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