From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933012AbaGWTgl (ORCPT ); Wed, 23 Jul 2014 15:36:41 -0400 Received: from mx1.redhat.com ([209.132.183.28]:9015 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932387AbaGWTgk (ORCPT ); Wed, 23 Jul 2014 15:36:40 -0400 Date: Wed, 23 Jul 2014 21:35:01 +0200 From: Oleg Nesterov To: Steven Rostedt Cc: Namhyung Kim , Ingo Molnar , linux-kernel@vger.kernel.org Subject: [PATCH 1/2] ftrace: Kill tracing_{start,stop}_sched_switch_record() and tracing_sched_switch_assign_trace() Message-ID: <20140723193501.GA30214@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140723193444.GA30194@redhat.com> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tracing_{start,stop}_sched_switch_record() have no callers since 87d80de2800d "tracing: Remove obsolete sched_switch tracer". The last caller of tracing_sched_switch_assign_trace() was removed by 30dbb20e68e6 "tracing: Remove boot tracer". Signed-off-by: Oleg Nesterov --- kernel/trace/trace.h | 3 -- kernel/trace/trace_sched_switch.c | 48 ------------------------------------- 2 files changed, 0 insertions(+), 51 deletions(-) diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 9258f5a..df2b33b 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -595,9 +595,6 @@ void set_graph_array(struct trace_array *tr); void tracing_start_cmdline_record(void); void tracing_stop_cmdline_record(void); -void tracing_sched_switch_assign_trace(struct trace_array *tr); -void tracing_stop_sched_switch_record(void); -void tracing_start_sched_switch_record(void); int register_tracer(struct tracer *type); int is_tracing_stopped(void); diff --git a/kernel/trace/trace_sched_switch.c b/kernel/trace/trace_sched_switch.c index 3f34dc9..3b60301 100644 --- a/kernel/trace/trace_sched_switch.c +++ b/kernel/trace/trace_sched_switch.c @@ -197,51 +197,3 @@ void tracing_stop_cmdline_record(void) { tracing_stop_sched_switch(); } - -/** - * tracing_start_sched_switch_record - start tracing context switches - * - * Turns on context switch tracing for a tracer. - */ -void tracing_start_sched_switch_record(void) -{ - if (unlikely(!ctx_trace)) { - WARN_ON(1); - return; - } - - tracing_start_sched_switch(); - - mutex_lock(&sched_register_mutex); - tracer_enabled++; - mutex_unlock(&sched_register_mutex); -} - -/** - * tracing_stop_sched_switch_record - start tracing context switches - * - * Turns off context switch tracing for a tracer. - */ -void tracing_stop_sched_switch_record(void) -{ - mutex_lock(&sched_register_mutex); - tracer_enabled--; - WARN_ON(tracer_enabled < 0); - mutex_unlock(&sched_register_mutex); - - tracing_stop_sched_switch(); -} - -/** - * tracing_sched_switch_assign_trace - assign a trace array for ctx switch - * @tr: trace array pointer to assign - * - * Some tracers might want to record the context switches in their - * trace. This function lets those tracers assign the trace array - * to use. - */ -void tracing_sched_switch_assign_trace(struct trace_array *tr) -{ - ctx_trace = tr; -} - -- 1.5.5.1