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SubjectRe: [PATCH 2/4] x86/pvops: target CREATE_TRACE_POINTS to particular subsystems

On Fri, 17 Apr 2009, Jeremy Fitzhardinge wrote:

> Steven Rostedt wrote:
> > Ah yes! It needs to be:
> >
> > #ifdef CONFIG_IRQ_TRACE_POINTS
> > #undef CONFIG_IRQ_TRACE_POINTS
> > #include <trace/define_trace.h>
> > #endif
> >
> > Otherwise we get into the recursion again.
> >
>
> We should probably also move the #define TRACE_SYS in there as well (without
> the #undef), as it should only have one definition at a time...

Actually, I'm kind of against that. Just because as it stands, the
TRACE_SYSTEM macro is up at the top, and it is easy to see.

Actually, we could do (from the top of the file)

#ifdef CONFIG_IRQ_TRACE_POINTS
#undef CONFIG_IRQ_TRACE_POINTS

#define TRACE_SYSTEM irq

#include <trace/define_trace.h>

#elif !defined(_TRACE_IRQ_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_IRQ_H
#include <linux/tracepoint.h>
#include <linux/interrupt.h>


[...]

#endif


-- Steve



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