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| author | Steven Rostedt (Red Hat) <rostedt@goodmis.org> | 2014-01-14 11:28:38 -0500 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2014-04-21 13:59:26 -0400 |
| commit | 6d9b3fa5e7f663bbfb9d2d80d46136f75319cb28 (patch) | |
| tree | eb21578a00e6e1092ba53c79a4a84e8dc8e13388 /kernel/trace/trace_sched_wakeup.c | |
| parent | 4104d326b670c2b66f575d2004daa28b2d1b4c8d (diff) | |
| download | linux-6d9b3fa5e7f663bbfb9d2d80d46136f75319cb28.tar.gz | |
tracing: Move tracing_max_latency into trace_array
In preparation for letting the latency tracers be used by instances, remove the global tracing_max_latency variable and add a max_latency field to the trace_array that the latency tracers will now use. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_sched_wakeup.c')
| -rw-r--r-- | kernel/trace/trace_sched_wakeup.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c index 4dd986defa60..41e0b8aa78ed 100644 --- a/kernel/trace/trace_sched_wakeup.c +++ b/kernel/trace/trace_sched_wakeup.c @@ -218,7 +218,7 @@ wakeup_set_flag(struct trace_array *tr, u32 old_flags, u32 bit, int set) stop_func_tracer(tr, !set); wakeup_reset(wakeup_trace); - tracing_max_latency = 0; + tr->max_latency = 0; return start_func_tracer(tr, set); } @@ -344,13 +344,13 @@ static void wakeup_print_header(struct seq_file *s) /* * Should this new latency be reported/recorded? */ -static int report_latency(cycle_t delta) +static int report_latency(struct trace_array *tr, cycle_t delta) { if (tracing_thresh) { if (delta < tracing_thresh) return 0; } else { - if (delta <= tracing_max_latency) + if (delta <= tr->max_latency) return 0; } return 1; @@ -418,11 +418,11 @@ probe_wakeup_sched_switch(void *ignore, T1 = ftrace_now(cpu); delta = T1-T0; - if (!report_latency(delta)) + if (!report_latency(wakeup_trace, delta)) goto out_unlock; if (likely(!is_tracing_stopped())) { - tracing_max_latency = delta; + wakeup_trace->max_latency = delta; update_max_tr(wakeup_trace, wakeup_task, wakeup_cpu); } @@ -609,7 +609,7 @@ static int __wakeup_tracer_init(struct trace_array *tr) set_tracer_flag(tr, TRACE_ITER_OVERWRITE, 1); set_tracer_flag(tr, TRACE_ITER_LATENCY_FMT, 1); - tracing_max_latency = 0; + tr->max_latency = 0; wakeup_trace = tr; ftrace_init_array_ops(tr, wakeup_tracer_call); start_wakeup_tracer(tr); |