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tracing: Replace the static global per_cpu arrays with allocated per_cpu

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The global and max-tr currently use static per_cpu arrays for the CPU data
descriptors. But in order to get new allocated trace_arrays, they need to
be allocated per_cpu arrays. Instead of using the static arrays, switch
the global and max-tr to use allocated data.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt
2012-08-06 16:24:11 -04:00
committed by Steven Rostedt
parent ccb469a198
commit a7603ff4b5
10 changed files with 80 additions and 62 deletions
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6
kernel/trace/trace_irqsoff.c
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@@ -121,7 +121,7 @@ static int func_prolog_dec(struct trace_array *tr,
if (!irqs_disabled_flags(*flags))
return 0;
*data = tr->data[cpu];
*data = per_cpu_ptr(tr->data, cpu);
disabled = atomic_inc_return(&(*data)->disabled);
if (likely(disabled == 1))
@@ -380,7 +380,7 @@ start_critical_timing(unsigned long ip, unsigned long parent_ip)
if (per_cpu(tracing_cpu, cpu))
return;
data = tr->data[cpu];
data = per_cpu_ptr(tr->data, cpu);
if (unlikely(!data) || atomic_read(&data->disabled))
return;
@@ -418,7 +418,7 @@ stop_critical_timing(unsigned long ip, unsigned long parent_ip)
if (!tracer_enabled)
return;
data = tr->data[cpu];
data = per_cpu_ptr(tr->data, cpu);
if (unlikely(!data) ||
!data->critical_start || atomic_read(&data->disabled))