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tracing: Make tracing_cpumask available for all instances

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Allow tracer instances to disable tracing by cpu by moving
the static global tracing_cpumask into trace_array.

Link: http://lkml.kernel.org/r/921622317f239bfc2283cac2242647801ef584f2.1375980149.git.azl@google.com

Cc: Vaibhav Nagarnaik <vnagarnaik@google.com>
Cc: David Sharp <dhsharp@google.com>
Cc: Alexander Z Lam <lambchop468@gmail.com>
Signed-off-by: Alexander Z Lam <azl@google.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Alexander Z Lam 2013-08-08 09:47:45 -07:00 • committed by Steven Rostedt
parent 836d481ed7
commit ccfe9e42e4
2 changed files with 21 additions and 17 deletions
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kernel/trace/trace.h
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@ -206,6 +206,7 @@ struct trace_array {
struct dentry *event_dir;
struct list_head systems;
struct list_head events;
cpumask_var_t tracing_cpumask; /* only trace on set CPUs */
int ref;
};