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perf: Allow for custom overflow handlers

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in-kernel perf users might wish to have custom actions on the
sample interrupt.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <20091120212508.222339539@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra
2009-11-20 22:19:43 +01:00
committed by Ingo Molnar
parent ef6ae72425
commit 453f19eea7
2 changed files with 13 additions and 1 deletions
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6
include/linux/perf_event.h
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@ -567,6 +567,8 @@ struct perf_pending_entry {
typedef void (*perf_callback_t)(struct perf_event *, void *);
struct perf_sample_data;
/**
* struct perf_event - performance event kernel representation:
*/
@ -658,6 +660,10 @@ struct perf_event {
struct pid_namespace *ns;
u64 id;
void (*overflow_handler)(struct perf_event *event,
int nmi, struct perf_sample_data *data,
struct pt_regs *regs);
#ifdef CONFIG_EVENT_PROFILE
struct event_filter *filter;
#endif