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authorPekka Paalanen <pq@iki.fi>2008-05-12 15:20:58 -0400
committerThomas Gleixner <tglx@linutronix.de>2008-05-24 05:25:16 -0400
commit138295373ccf7625fcb0218dfea114837983bc39 (patch)
tree3d4afbb0d976fa41435fd5806ff0338aa1f15567 /include/linux/mmiotrace.h
parentbd8ac686c73c7e925fcfe0b02dc4e7b947127864 (diff)
ftrace: mmiotrace update, #2
another weekend, another patch. This should apply on top of my previous patch from March 23rd. Summary of changes: - Print PCI device list in output header - work around recursive probe hits on SMP - refactor dis/arm_kmmio_fault_page() and add check for page levels - remove un/reference_kmmio(), the die notifier hook is registered permanently into the list - explicitly check for single stepping in die notifier callback I have tested this version on my UP Athlon64 desktop with Nouveau, and SMP Core 2 Duo laptop with the proprietary nvidia driver. Both systems are 64-bit. One previously unknown bug crept into daylight: the ftrace framework's output routines print the first entry last after buffer has wrapped around. The most important regressions compared to non-ftrace mmiotrace at this time are: - failure of trace_pipe file - illegal lines in output file - unaware of losing data due to buffer full Personally I'd like to see these three solved before submitting to mainline. Other issues may come up once we know when we lose events. Signed-off-by: Pekka Paalanen <pq@iki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/mmiotrace.h')
-rw-r--r--include/linux/mmiotrace.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/include/linux/mmiotrace.h b/include/linux/mmiotrace.h
index c88a9c197d22..dd6b64b160fc 100644
--- a/include/linux/mmiotrace.h
+++ b/include/linux/mmiotrace.h
@@ -31,8 +31,6 @@ static inline int is_kmmio_active(void)
31 return kmmio_count; 31 return kmmio_count;
32} 32}
33 33
34extern void reference_kmmio(void);
35extern void unreference_kmmio(void);
36extern int register_kmmio_probe(struct kmmio_probe *p); 34extern int register_kmmio_probe(struct kmmio_probe *p);
37extern void unregister_kmmio_probe(struct kmmio_probe *p); 35extern void unregister_kmmio_probe(struct kmmio_probe *p);
38 36