linux-kernel - Re: [PATCH 3/5] perf/hw_breakpoint: Remove superfluous bp->attr.disabled = 0

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Date:   Thu, 9 Aug 2018 15:59:55 +0200
From:   Oleg Nesterov <oleg@...hat.com>
To:     Jiri Olsa <jolsa@...nel.org>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        lkml <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        David Ahern <dsahern@...il.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Milind Chabbi <chabbi.milind@...il.com>,
        Frederic Weisbecker <frederic@...nel.org>
Subject: Re: [PATCH 3/5] perf/hw_breakpoint: Remove superfluous
 bp->attr.disabled = 0

On 08/09, Jiri Olsa wrote:
>
> @@ -526,10 +526,9 @@ int modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *att
>  	if (err)
>  		return err;
>  
> -	if (!attr->disabled) {
> +	if (!attr->disabled)
>  		perf_event_enable(bp);
> -		bp->attr.disabled = 0;
> -	}

Acked-by: Oleg Nesterov <oleg@...hat.com>