From: Alexei Starovoitov <ast@plumgrid.com>
To: "David S. Miller" <davem@davemloft.net>
Cc: Andy Lutomirski <luto@amacapital.net>,
Ingo Molnar <mingo@kernel.org>,
Steven Rostedt <rostedt@goodmis.org>,
Wang Nan <wangnan0@huawei.com>,
lizefan@huawei.com, Daniel Wagner <daniel.wagner@bmw-carit.de>,
Daniel Borkmann <daniel@iogearbox.net>,
linux-api@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v2 net-next 3/3] bpf: let kprobe programs use bpf_get_smp_processor_id() helper
Date: Fri, 12 Jun 2015 19:39:14 -0700 [thread overview]
Message-ID: <1434163154-5218-4-git-send-email-ast@plumgrid.com> (raw)
In-Reply-To: <1434163154-5218-1-git-send-email-ast@plumgrid.com>
It's useful to do per-cpu histograms.
Suggested-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
---
v1->v2: no changes
kernel/trace/bpf_trace.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c
index 4f9b5d41869b..88a041adee90 100644
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -181,6 +181,8 @@ static const struct bpf_func_proto *kprobe_prog_func_proto(enum bpf_func_id func
return &bpf_get_current_comm_proto;
case BPF_FUNC_trace_printk:
return bpf_get_trace_printk_proto();
+ case BPF_FUNC_get_smp_processor_id:
+ return &bpf_get_smp_processor_id_proto;
default:
return NULL;
}
--
1.7.9.5
next prev parent reply other threads:[~2015-06-13 2:39 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-13 2:39 [PATCH v2 net-next 0/3] bpf: share helpers between tracing and networking Alexei Starovoitov
2015-06-13 2:39 ` [PATCH v2 net-next 2/3] bpf: allow networking programs to use bpf_trace_printk() for debugging Alexei Starovoitov
2015-06-13 2:39 ` Alexei Starovoitov [this message]
[not found] ` <1434163154-5218-4-git-send-email-ast-uqk4Ao+rVK5Wk0Htik3J/w@public.gmane.org>
2015-06-13 8:23 ` [PATCH v2 net-next 3/3] bpf: let kprobe programs use bpf_get_smp_processor_id() helper Daniel Borkmann
[not found] ` <1434163154-5218-1-git-send-email-ast-uqk4Ao+rVK5Wk0Htik3J/w@public.gmane.org>
2015-06-13 2:39 ` [PATCH v2 net-next 1/3] bpf: introduce current->pid, tgid, uid, gid, comm accessors Alexei Starovoitov
2015-06-15 23:01 ` [PATCH v2 net-next 0/3] bpf: share helpers between tracing and networking David Miller
[not found] ` <20150615.160130.583783771772303463.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2015-06-16 3:28 ` Alexei Starovoitov
2015-06-16 9:19 ` Daniel Borkmann
[not found] ` <557FEA2C.5080408-FeC+5ew28dpmcu3hnIyYJQ@public.gmane.org>
2015-06-16 17:10 ` Alexei Starovoitov
[not found] ` <558058A0.7030201-uqk4Ao+rVK5Wk0Htik3J/w@public.gmane.org>
2015-06-18 8:10 ` Daniel Borkmann
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