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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2009-06-04 16:53:44 +0200
committerIngo Molnar <mingo@elte.hu>2009-06-04 17:51:38 +0200
commit60313ebed739b331e8e61079da27a11ee3b73a30 (patch)
tree8476fbd05be709595876360765776dd9ca20608d /include
parent20c84e959ec11b1803d2b2832eef703d5fbe7f7b (diff)
downloadop-kernel-dev-60313ebed739b331e8e61079da27a11ee3b73a30.zip
op-kernel-dev-60313ebed739b331e8e61079da27a11ee3b73a30.tar.gz
perf_counter: Add fork event
Create a fork event so that we can easily clone the comm and dso maps without having to generate all those events. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include')
-rw-r--r--include/linux/perf_counter.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h
index 37d5541..380247b 100644
--- a/include/linux/perf_counter.h
+++ b/include/linux/perf_counter.h
@@ -277,6 +277,14 @@ enum perf_event_type {
PERF_EVENT_UNTHROTTLE = 6,
/*
+ * struct {
+ * struct perf_event_header header;
+ * u32 pid, ppid;
+ * };
+ */
+ PERF_EVENT_FORK = 7,
+
+ /*
* When header.misc & PERF_EVENT_MISC_OVERFLOW the event_type field
* will be PERF_RECORD_*
*
@@ -618,6 +626,7 @@ extern void perf_counter_munmap(unsigned long addr, unsigned long len,
unsigned long pgoff, struct file *file);
extern void perf_counter_comm(struct task_struct *tsk);
+extern void perf_counter_fork(struct task_struct *tsk);
extern void perf_counter_task_migration(struct task_struct *task, int cpu);
@@ -673,6 +682,7 @@ perf_counter_munmap(unsigned long addr, unsigned long len,
unsigned long pgoff, struct file *file) { }
static inline void perf_counter_comm(struct task_struct *tsk) { }
+static inline void perf_counter_fork(struct task_struct *tsk) { }
static inline void perf_counter_init(void) { }
static inline void perf_counter_task_migration(struct task_struct *task,
int cpu) { }
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