Re: [PATCH 3/9] rcu/sync: Remove custom check for reader-section (v2)

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Jul 15, 2019 at 10:36:59AM -0400, Joel Fernandes (Google) wrote:
> The rcu/sync code was doing its own check whether we are in a reader
> section. With RCU consolidating flavors and the generic helper added in
> this series, this is no longer need. We can just use the generic helper
> and it results in a nice cleanup.
> 
> Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
> Acked-by: Oleg Nesterov <oleg@xxxxxxxxxx>
> Signed-off-by: Joel Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx>

This one looks good!

							Thanx, Paul

> ---
>  include/linux/rcu_sync.h | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/include/linux/rcu_sync.h b/include/linux/rcu_sync.h
> index 9b83865d24f9..0027d4c8087c 100644
> --- a/include/linux/rcu_sync.h
> +++ b/include/linux/rcu_sync.h
> @@ -31,9 +31,7 @@ struct rcu_sync {
>   */
>  static inline bool rcu_sync_is_idle(struct rcu_sync *rsp)
>  {
> -	RCU_LOCKDEP_WARN(!rcu_read_lock_held() &&
> -			 !rcu_read_lock_bh_held() &&
> -			 !rcu_read_lock_sched_held(),
> +	RCU_LOCKDEP_WARN(!rcu_read_lock_any_held(),
>  			 "suspicious rcu_sync_is_idle() usage");
>  	return !READ_ONCE(rsp->gp_state); /* GP_IDLE */
>  }
> -- 
> 2.22.0.510.g264f2c817a-goog
> 




[Index of Archives]     [Linux IBM ACPI]     [Linux Power Management]     [Linux Kernel]     [Linux Laptop]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Video 4 Linux]     [Device Mapper]     [Linux Resources]

  Powered by Linux