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tracing: Move tracing_max_latency into trace_array

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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>
This commit is contained in:
Steven Rostedt (Red Hat)
2014-01-14 11:28:38 -05:00
committed by Steven Rostedt
parent 4104d326b6
commit 6d9b3fa5e7
5 changed files with 33 additions and 36 deletions
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3
kernel/trace/trace.h
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@@ -190,6 +190,7 @@ struct trace_array {
*/
struct trace_buffer max_buffer;
bool allocated_snapshot;
unsigned long max_latency;
#endif
int buffer_disabled;
#ifdef CONFIG_FTRACE_SYSCALLS
@@ -599,8 +600,6 @@ extern unsigned long nsecs_to_usecs(unsigned long nsecs);
extern unsigned long tracing_thresh;
#ifdef CONFIG_TRACER_MAX_TRACE
extern unsigned long tracing_max_latency;
void update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu);
void update_max_tr_single(struct trace_array *tr,
struct task_struct *tsk, int cpu);