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tracing: Have trace_array keep track if snapshot buffer is allocated

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The snapshot buffer belongs to the trace array not the tracer that is
running. The trace array should be the data structure that keeps track
of whether or not the snapshot buffer is allocated, not the tracer
desciptor. Having the trace array keep track of it makes modifications
so much easier.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (Red Hat) 2013-03-05 18:25:02 -05:00 • committed by Steven Rostedt
parent 6de58e6269
commit 45ad21ca55
2 changed files with 16 additions and 18 deletions
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2
kernel/trace/trace.h
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@ -197,6 +197,7 @@ struct trace_array {
* the trace_buffer so the tracing can continue.
*/
struct trace_buffer max_buffer;
bool allocated_snapshot;
#endif
int buffer_disabled;
struct trace_cpu trace_cpu; /* place holder */
@ -367,7 +368,6 @@ struct tracer {
bool enabled;
#ifdef CONFIG_TRACER_MAX_TRACE
bool use_max_tr;
bool allocated_snapshot;
#endif
};