From: Steven Rostedt <rostedt@goodmis.org>
To: Song Liu <songliubraving@fb.com>
Cc: Matt Mullins <mmullins@fb.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"daniel@iogearbox.net" <daniel@iogearbox.net>,
"bpf@vger.kernel.org" <bpf@vger.kernel.org>,
"ast@kernel.org" <ast@kernel.org>, Andrew Hall <hall@fb.com>,
"mingo@redhat.com" <mingo@redhat.com>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
Martin Lau <kafai@fb.com>, Yonghong Song <yhs@fb.com>
Subject: Re: [PATCH bpf] bpf: preallocate a perf_sample_data per event fd
Date: Sat, 8 Jun 2019 16:39:33 -0400 [thread overview]
Message-ID: <20190608163933.50033e9f@oasis.local.home> (raw)
In-Reply-To: <C9035893-C2C6-4051-BF19-9AC931D475ED@fb.com>
On Fri, 31 May 2019 05:26:30 +0000
Song Liu <songliubraving@fb.com> wrote:
> We can also do something like
>
> ee = kzalloc(sizeof(struct bpf_event_entry) + sizeof(struct perf_sample_data));
> ee->sd = (void *)ee + sizeof(struct bpf_event_entry);
Or perhaps:
ee->sd = (struct perf_sample_data *)(ee + 1);
-- Steve
prev parent reply other threads:[~2019-06-08 20:39 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-30 22:55 [PATCH bpf] bpf: preallocate a perf_sample_data per event fd Matt Mullins
2019-05-30 23:28 ` Song Liu
2019-05-31 0:01 ` Matt Mullins
2019-05-31 5:26 ` Song Liu
2019-06-08 20:39 ` Steven Rostedt [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190608163933.50033e9f@oasis.local.home \
--to=rostedt@goodmis.org \
--cc=ast@kernel.org \
--cc=bpf@vger.kernel.org \
--cc=daniel@iogearbox.net \
--cc=hall@fb.com \
--cc=kafai@fb.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=mmullins@fb.com \
--cc=netdev@vger.kernel.org \
--cc=songliubraving@fb.com \
--cc=yhs@fb.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox