From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753734AbaCXSOH (ORCPT ); Mon, 24 Mar 2014 14:14:07 -0400 Received: from mail-oa0-f73.google.com ([209.85.219.73]:58934 "EHLO mail-oa0-f73.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752675AbaCXSOF (ORCPT ); Mon, 24 Mar 2014 14:14:05 -0400 From: Bharath Ravi To: Steven Rostedt Cc: Vaibhav Nagarnaik , David Sharp , Bharath Ravi , Laurent Chavey , linux-kernel@vger.kernel.org Subject: [PATCH 0/3] Allow instances to independently set trace options. Date: Mon, 24 Mar 2014 11:13:43 -0700 Message-Id: <1395684826-22931-1-git-send-email-rbharath@google.com> X-Mailer: git-send-email 1.9.1.423.g4596e3a Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Currently, the trace options are global, and shared among all instances. This patchset allows instances to set certain trace options independently, without affecting the global instance or other instances. With this change, trace_overwrite will become an instance specific option, while others remain global options. This is achieved in three steps 1. Replace references to the global trace_flags mask with get/set accessors. This allows global trace_flags to be replaced by instance specific flags in step 2. 2. Replace the global trace_flags mask with instance specific trace_flags from the trace_array. Divide the set of trace options into global options, and instance options (that may be set independently by instances). 3. Make trace_overwrite an instance specific option. Bharath Ravi (3): tracing: Replace usage of trace_flags with new accessors. tracing: Allow instances to have independent trace flags/trace options. tracing: Allow instances to independently set trace_overwrite. kernel/trace/blktrace.c | 3 +- kernel/trace/ftrace.c | 4 +- kernel/trace/trace.c | 127 +++++++++++++++++++++++++---------- kernel/trace/trace.h | 48 ++++++------- kernel/trace/trace_events.c | 2 +- kernel/trace/trace_functions_graph.c | 10 +-- kernel/trace/trace_irqsoff.c | 4 +- kernel/trace/trace_kdb.c | 6 +- kernel/trace/trace_output.c | 8 +-- kernel/trace/trace_printk.c | 8 +-- kernel/trace/trace_sched_wakeup.c | 3 +- kernel/trace/trace_syscalls.c | 2 +- 12 files changed, 143 insertions(+), 82 deletions(-) -- 1.9.1.423.g4596e3a