Re: [PATCH bpf-next v3 3/5] nbd: add tracepoints for send/receive timing
- To: Matt Mullins <mmullins@fb.com>
- Cc: hall@fb.com, ast@kernel.org, bpf@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Josef Bacik <josef@toxicpanda.com>, Jens Axboe <axboe@kernel.dk>, Steven Rostedt <rostedt@goodmis.org>, Ingo Molnar <mingo@redhat.com>, Daniel Borkmann <daniel@iogearbox.net>, Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>, Yonghong Song <yhs@fb.com>, linux-block@vger.kernel.org, nbd@other.debian.org
- Subject: Re: [PATCH bpf-next v3 3/5] nbd: add tracepoints for send/receive timing
- From: Josef Bacik <josef@toxicpanda.com>
- Date: Fri, 19 Apr 2019 17:16:29 -0400
- Message-id: <[🔎] 20190419211628.zzn42bfpqelfq52p@macbook-pro-91.dhcp.thefacebook.com>
- In-reply-to: <20190419210409.5021-4-mmullins@fb.com>
- References: <20190419210409.5021-1-mmullins@fb.com> <20190419210409.5021-4-mmullins@fb.com>
On Fri, Apr 19, 2019 at 02:04:07PM -0700, Matt Mullins wrote:
> From: Andrew Hall <hall@fb.com>
>
> This adds four tracepoints to nbd, enabling separate tracing of payload
> and header sending/receipt.
>
> In the send path for headers that have already been sent, we also
> explicitly initialize the handle so it can be referenced by the later
> tracepoint.
>
> Signed-off-by: Andrew Hall <hall@fb.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Thanks,
Josef
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