From: Kyle Huey <me@kylehuey.com>
To: Kyle Huey <khuey@kylehuey.com>,
linux-kernel@vger.kernel.org,
Andrii Nakryiko <andrii.nakryiko@gmail.com>,
Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
Marco Elver <elver@google.com>,
Yonghong Song <yonghong.song@linux.dev>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>,
Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Robert O'Callahan <robert@ocallahan.org>,
bpf@vger.kernel.org, Ingo Molnar <mingo@redhat.com>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Ian Rogers <irogers@google.com>,
Adrian Hunter <adrian.hunter@intel.com>,
linux-perf-users@vger.kernel.org
Subject: [PATCH v6 2/7] perf/bpf: Create bpf_overflow_handler() stub for !CONFIG_BPF_SYSCALL
Date: Thu, 11 Apr 2024 18:50:14 -0700 [thread overview]
Message-ID: <20240412015019.7060-3-khuey@kylehuey.com> (raw)
In-Reply-To: <20240412015019.7060-1-khuey@kylehuey.com>
This will allow __perf_event_overflow() (which is independent of
CONFIG_BPF_SYSCALL) to call bpf_overflow_handler().
Signed-off-by: Kyle Huey <khuey@kylehuey.com>
---
kernel/events/core.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/kernel/events/core.c b/kernel/events/core.c
index ee025125a681..a7c2a739a27c 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -9624,6 +9624,12 @@ static void perf_event_free_bpf_handler(struct perf_event *event)
bpf_prog_put(prog);
}
#else
+static void bpf_overflow_handler(struct perf_event *event,
+ struct perf_sample_data *data,
+ struct pt_regs *regs)
+{
+}
+
static int perf_event_set_bpf_handler(struct perf_event *event,
struct bpf_prog *prog,
u64 bpf_cookie)
--
2.34.1
next prev parent reply other threads:[~2024-04-12 1:50 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20240412015019.7060-1-khuey@kylehuey.com>
2024-04-12 1:50 ` [PATCH v6 1/7] perf/bpf: Reorder bpf_overflow_handler() ahead of __perf_event_overflow() Kyle Huey
2024-04-12 1:50 ` Kyle Huey [this message]
2024-04-12 1:50 ` [PATCH v6 3/7] perf/bpf: Remove #ifdef CONFIG_BPF_SYSCALL from struct perf_event members Kyle Huey
2024-04-12 1:50 ` [PATCH v6 4/7] perf/bpf: Call bpf handler directly, not through overflow machinery Kyle Huey
2024-04-12 1:50 ` [PATCH v6 5/7] perf/bpf: Remove unneeded uses_default_overflow_handler() Kyle Huey
2024-04-12 1:50 ` [PATCH v6 6/7] perf/bpf: Allow a bpf program to suppress all sample side effects Kyle Huey
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=20240412015019.7060-3-khuey@kylehuey.com \
--to=me@kylehuey.com \
--cc=acme@kernel.org \
--cc=adrian.hunter@intel.com \
--cc=alexander.shishkin@linux.intel.com \
--cc=andrii.nakryiko@gmail.com \
--cc=bpf@vger.kernel.org \
--cc=elver@google.com \
--cc=irogers@google.com \
--cc=jolsa@kernel.org \
--cc=khuey@kylehuey.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-perf-users@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=mingo@kernel.org \
--cc=mingo@redhat.com \
--cc=namhyung@kernel.org \
--cc=peterz@infradead.org \
--cc=robert@ocallahan.org \
--cc=yonghong.song@linux.dev \
/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;
as well as URLs for NNTP newsgroup(s).