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tracing: x86, mmiotrace: only register for die notifier when tracer active

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Follow up to afcfe024ae in Linus' tree
("x86: mmiotrace: quieten spurious warning message")

Signed-off-by: Stuart Bennett <stuart@freedesktop.org>
Acked-by: Pekka Paalanen <pq@iki.fi>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <1240946271-7083-5-git-send-email-stuart@freedesktop.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Stuart Bennett
2009-04-28 20:17:51 +01:00
committed by Ingo Molnar
parent 46e91d00b1
commit 0f9a623dd6
3 changed files with 26 additions and 5 deletions
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include/linux/mmiotrace.h
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@ -30,6 +30,8 @@ extern unsigned int kmmio_count;
extern int register_kmmio_probe(struct kmmio_probe *p);
extern void unregister_kmmio_probe(struct kmmio_probe *p);
extern int kmmio_init(void);
extern void kmmio_cleanup(void);
#ifdef CONFIG_MMIOTRACE
/* kmmio is active by some kmmio_probes? */