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| author | Li Zefan <lizf@cn.fujitsu.com> | 2009-10-15 11:21:42 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-10-15 11:35:23 +0200 |
| commit | 6fb2915df7f0747d9044da9dbff5b46dc2e20830 (patch) | |
| tree | b4c5d7d913362ae6161c2859a7a385263330e965 /include/linux/ftrace_event.h | |
| parent | b0f1a59a98d7ac2102e7e4f22904c26d564a5628 (diff) | |
| download | lwn-6fb2915df7f0747d9044da9dbff5b46dc2e20830.tar.gz lwn-6fb2915df7f0747d9044da9dbff5b46dc2e20830.zip | |
tracing/profile: Add filter support
- Add an ioctl to allocate a filter for a perf event.
- Free the filter when the associated perf event is to be freed.
- Do the filtering in perf_swevent_match().
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <4AD69546.8050401@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/ftrace_event.h')
| -rw-r--r-- | include/linux/ftrace_event.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h index 4ec5e67e18cf..d11770472bc8 100644 --- a/include/linux/ftrace_event.h +++ b/include/linux/ftrace_event.h @@ -144,7 +144,7 @@ extern char *trace_profile_buf_nmi; #define MAX_FILTER_STR_VAL 256 /* Should handle KSYM_SYMBOL_LEN */ extern void destroy_preds(struct ftrace_event_call *call); -extern int filter_match_preds(struct ftrace_event_call *call, void *rec); +extern int filter_match_preds(struct event_filter *filter, void *rec); extern int filter_current_check_discard(struct ring_buffer *buffer, struct ftrace_event_call *call, void *rec, @@ -186,4 +186,13 @@ do { \ __trace_printk(ip, fmt, ##args); \ } while (0) +#ifdef CONFIG_EVENT_PROFILE +struct perf_event; +extern int ftrace_profile_enable(int event_id); +extern void ftrace_profile_disable(int event_id); +extern int ftrace_profile_set_filter(struct perf_event *event, int event_id, + char *filter_str); +extern void ftrace_profile_free_filter(struct perf_event *event); +#endif + #endif /* _LINUX_FTRACE_EVENT_H */ |