From 50512ab576e1ce29953c9259e1f36ce16f350f20 Mon Sep 17 00:00:00 2001 From: "Steven Rostedt (Red Hat)" Date: Tue, 14 Jan 2014 08:52:35 -0500 Subject: [PATCH] tracing: Convert tracer->enabled to counter As tracers will soon be used by instances, the tracer enabled field needs to be converted to a counter instead of a boolean. This counter is protected by the trace_types_lock mutex. Signed-off-by: Steven Rostedt --- kernel/trace/trace.c | 6 +++--- kernel/trace/trace.h | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 7d5913bb46e8..f9f22c435036 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -3916,7 +3916,7 @@ static void tracing_set_nop(struct trace_array *tr) if (tr->current_trace == &nop_trace) return; - tr->current_trace->enabled = false; + tr->current_trace->enabled--; if (tr->current_trace->reset) tr->current_trace->reset(tr); @@ -3962,7 +3962,7 @@ static int tracing_set_tracer(struct trace_array *tr, const char *buf) trace_branch_disable(); - tr->current_trace->enabled = false; + tr->current_trace->enabled--; if (tr->current_trace->reset) tr->current_trace->reset(tr); @@ -4006,7 +4006,7 @@ static int tracing_set_tracer(struct trace_array *tr, const char *buf) } tr->current_trace = t; - tr->current_trace->enabled = true; + tr->current_trace->enabled++; trace_branch_enable(tr); out: mutex_unlock(&trace_types_lock); diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index ea51bb2004d2..86915b220bbe 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -362,8 +362,8 @@ struct tracer { u32 mask, int set); struct tracer *next; struct tracer_flags *flags; + int enabled; bool print_max; - bool enabled; bool allow_instances; #ifdef CONFIG_TRACER_MAX_TRACE bool use_max_tr; -- 2.20.1