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From: Pranith Kumar <bobby.prani@gmail.com>
To: peterz@infradead.org, paulmck@linux.vnet.ibm.com
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: [RFC PATCH v2 1/1] rename {before/after}_atomic_{inc/dec} to {before/after}_atomic
Date: Thu, 29 May 2014 00:44:03 -0400	[thread overview]
Message-ID: <5386BB13.1070908@gmail.com> (raw)
In-Reply-To: <5386B75A.3010806@gmail.com>

On 05/29/2014 12:28 AM, Pranith Kumar wrote:

> diff --git a/kernel/sched/cpupri.c b/kernel/sched/cpupri.c
> index 3031bac..a5635ad 100644
> --- a/kernel/sched/cpupri.c
> +++ b/kernel/sched/cpupri.c
> @@ -164,7 +164,7 @@ void cpupri_set(struct cpupri *cp, int cpu, int newpri)
>  		 * do a write memory barrier, and then update the count, to
>  		 * make sure the vector is visible when count is set.
>  		 */
> -		smp_mb__before_atomic_inc();
> +		smp_mb__before_atomic();
>  		atomic_inc(&(vec)->count);
>  		do_mb = 1;
>  	}
> @@ -184,14 +184,14 @@ void cpupri_set(struct cpupri *cp, int cpu, int newpri)
>  		 * the new priority vec.
>  		 */
>  		if (do_mb)
> -			smp_mb__after_atomic_inc();
> +			smp_mb__after_atomic();
>  
>  		/*
>  		 * When removing from the vector, we decrement the counter first
>  		 * do a memory barrier and then clear the mask.
>  		 */
>  		atomic_dec(&(vec)->count);
> -		smp_mb__after_atomic_inc();
> +		smp_mb__after_atomic();
>  		cpumask_clear_cpu(cpu, vec->mask);
>  	}
>  

We should at the least fix this :)




  reply	other threads:[~2014-05-29  4:43 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-29  4:28 [RFC PATCH v2 1/1] rename {before/after}_atomic_{inc/dec} to {before/after}_atomic Pranith Kumar
2014-05-29  4:44 ` Pranith Kumar [this message]
2014-05-29  6:43 ` Peter Zijlstra
2014-05-29 12:52   ` Pranith Kumar

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