From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mathieu Desnoyers Subject: Re: [PATCH v8 bpf-next 6/9] bpf: introduce BPF_RAW_TRACEPOINT Date: Wed, 28 Mar 2018 15:48:47 -0400 (EDT) Message-ID: <2000920858.249.1522266527563.JavaMail.zimbra@efficios.com> References: <20180328190540.370956-1-ast@kernel.org> <20180328190540.370956-7-ast@kernel.org> <20180328153435.5e733957@gandalf.local.home> <2a0f6ac2-b13e-b8ad-31b4-a42909a34efa@fb.com> <20180328154027.569206ba@gandalf.local.home> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20180328154027.569206ba@gandalf.local.home> Sender: netdev-owner@vger.kernel.org To: rostedt Cc: Alexei Starovoitov , Alexei Starovoitov , "David S. Miller" , Daniel Borkmann , Linus Torvalds , Peter Zijlstra , netdev , kernel-team , linux-api List-Id: linux-api@vger.kernel.org ----- On Mar 28, 2018, at 3:40 PM, rostedt rostedt@goodmis.org wrote: > On Wed, 28 Mar 2018 12:38:48 -0700 > Alexei Starovoitov wrote: > >> On 3/28/18 12:34 PM, Steven Rostedt wrote: >> > On Wed, 28 Mar 2018 12:05:37 -0700 >> > Alexei Starovoitov wrote: >> > >> >> +++ b/include/linux/tracepoint-defs.h >> >> @@ -35,4 +35,10 @@ struct tracepoint { >> >> struct tracepoint_func __rcu *funcs; >> >> }; >> >> >> >> +struct bpf_raw_event_map { >> >> + struct tracepoint *tp; >> >> + void *bpf_func; >> >> + u32 num_args; >> >> +} __aligned(32); >> >> + >> > >> > If you prefer v7, I'm fine with that. For cache issues, I can pull out >> > the funcs from the tracepoint structure like I posted. >> >> I very much prefer to land this v8 as-is and optimize later. >> >> I still have bpfilter/microkernel patches to finish which were >> practically ready two weeks ago and got delayed but this set. > > Then by all means, you have my Ack. We can optimize later. > > For the whole series... (v7 or v8) > > Acked-by: Steven Rostedt (VMware) I'm fine with either v7 or v8 as well. Thanks, Mathieu > > Thanks! > > -- Steve -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com