netdev - Re: [PATCH bpf-next v3 2/5] nbd: trace sending nbd requests

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Message-ID: <20190419211600.5dvflqu6ryvjgwjg@macbook-pro-91.dhcp.thefacebook.com>
Date:   Fri, 19 Apr 2019 17:16:01 -0400
From:   Josef Bacik <josef@...icpanda.com>
To:     Matt Mullins <mmullins@...com>
Cc:     hall@...com, ast@...nel.org, bpf@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Josef Bacik <josef@...icpanda.com>,
        Jens Axboe <axboe@...nel.dk>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        "David S. Miller" <davem@...emloft.net>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        linux-block@...r.kernel.org, nbd@...er.debian.org
Subject: Re: [PATCH bpf-next v3 2/5] nbd: trace sending nbd requests

On Fri, Apr 19, 2019 at 02:04:06PM -0700, Matt Mullins wrote:
> This adds a tracepoint that can both observe the nbd request being sent
> to the server, as well as modify that request , e.g., setting a flag in
> the request that will cause the server to collect detailed tracing data.
> 
> The struct request * being handled is included to permit correlation
> with the block tracepoints.
> 
> Signed-off-by: Matt Mullins <mmullins@...com>
> ---

Reviewed-by: Josef Bacik <josef@...icpanda.com>

Thanks,

Josef