linux-kernel - Re: [PATCH v2 perf,bpf 01/11] perf, bpf: consider events with attr.bpf

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Message-ID: <20190215141407.GA5784@redhat.com>
Date:   Fri, 15 Feb 2019 12:14:07 -0200
From:   Arnaldo Carvalho de Melo <acme@...hat.com>
To:     Song Liu <songliubraving@...com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        ast@...nel.org, daniel@...earbox.net, kernel-team@...com,
        peterz@...radead.org, jolsa@...nel.org, namhyung@...nel.org
Subject: Re: [PATCH v2 perf,bpf 01/11] perf, bpf: consider events with
 attr.bpf_event as side-band events

Em Thu, Feb 14, 2019 at 03:58:40PM -0800, Song Liu escreveu:
> Events with bpf_event should be considered as side-band event, as they
> carry information about BPF programs.
> 
> Fixes: 6ee52e2a3fe4 ("perf, bpf: Introduce PERF_RECORD_BPF_EVENT")
> Signed-off-by: Song Liu <songliubraving@...com>
> ---
>  kernel/events/core.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/kernel/events/core.c b/kernel/events/core.c
> index 0a8dab322111..9403bdda5f8c 100644
> --- a/kernel/events/core.c
> +++ b/kernel/events/core.c
> @@ -4238,7 +4238,8 @@ static bool is_sb_event(struct perf_event *event)
>  	if (attr->mmap || attr->mmap_data || attr->mmap2 ||
>  	    attr->comm || attr->comm_exec ||
>  	    attr->task || attr->ksymbol ||
> -	    attr->context_switch)
> +	    attr->context_switch ||
> +	    attr->bpf_event)

What about attr->ksymbol?

- Arnaldo

>  		return true;
>  	return false;
>  }
> -- 
> 2.17.1