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tracing: Add TRACE_SYSTEM_VAR to kvm-s390

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New code will require TRACE_SYSTEM to be a valid C variable name,
but some tracepoints have TRACE_SYSTEM with '-' and not '_', so
it can not be used. Instead, add a TRACE_SYSTEM_VAR that can
give the tracing infrastructure a unique name for the trace system.

Link: http://lkml.kernel.org/r/[email protected]

Cc: Martin Schwidefsky <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Acked-by: Cornelia Huck <[email protected]>
Reviewed-by: Masami Hiramatsu <[email protected]>
Tested-by: Masami Hiramatsu <[email protected]>
Signed-off-by: Steven Rostedt <[email protected]>
This commit is contained in:
Steven Rostedt (Red Hat) authored and Steven Rostedt committed 2015-04-07 12:31:39 -04:00
1 parent 882156e040
commit bd41202214
1 file changed
+7
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arch/s390/kvm/trace-s390.h
+7
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@@ -9,6 +9,13 @@
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE trace-s390
/*
* The TRACE_SYSTEM_VAR defaults to TRACE_SYSTEM, but must be a
* legitimate C variable. It is not exported to user space.
*/
#undef TRACE_SYSTEM_VAR
#define TRACE_SYSTEM_VAR kvm_s390
/*
* Trace point for the creation of the kvm instance.
*/