From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965961AbZLHT5l (ORCPT ); Tue, 8 Dec 2009 14:57:41 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756250AbZLHT52 (ORCPT ); Tue, 8 Dec 2009 14:57:28 -0500 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.123]:47651 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756243AbZLHT50 (ORCPT ); Tue, 8 Dec 2009 14:57:26 -0500 X-Authority-Analysis: v=1.0 c=1 a=Mjnsj-nqntgA:10 a=VwQbUJbxAAAA:8 a=oucFqDjQXLSq3mRFSdkA:9 a=a8Ui4mX3SXyM8wp7XmFkQsid8_4A:4 X-Cloudmark-Score: 0 X-Originating-IP: 74.67.89.75 Message-Id: <20091208195405.653797300@goodmis.org> User-Agent: quilt/0.48-1 Date: Tue, 08 Dec 2009 14:54:05 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , Frederic Weisbecker , Li Zefan , Lai Jiangshan Subject: [PATCH 0/2][RFC] [RFC] tracing: separate out buffer from trace_seq Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an RFC patch set. The trace_seq currently has its buffer within the structure itself. But this limits its ability and efficiency. This patch set separates it out, but now it requires the callers to supply their own buffer. But this helps out the splice code because it can now write directly into the splice pages. This may be too much for 33? But it is a nice fix. Thoughs? The following patches are in: git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace.git branch: rfc/tracing/core Steven Rostedt (2): tracing: Change trace_seq to use separate buffer tracing: Write directly into splice page for trace_pipe ---- include/linux/ftrace_event.h | 6 ++++- include/linux/trace_seq.h | 22 +++++++++++++++- include/trace/ftrace.h | 20 +++++++++++---- kernel/trace/ftrace.c | 3 +- kernel/trace/trace.c | 54 ++++++++++++++++------------------------- kernel/trace/trace_events.c | 45 +++++++++++++++++++++++++++++++---- kernel/trace/trace_ksym.c | 10 +++++++- kernel/trace/trace_output.c | 24 ++++++++++-------- 8 files changed, 125 insertions(+), 59 deletions(-)