perf_counter: generalize pending infrastructure
Prepare the pending infrastructure to do more than wakeups.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
LKML-Reference: <20090406094517.634732847@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h
index 8d5d11b..977fb15 100644
--- a/include/linux/perf_counter.h
+++ b/include/linux/perf_counter.h
@@ -321,8 +321,9 @@
void *data_pages[0];
};
-struct perf_wakeup_entry {
- struct perf_wakeup_entry *next;
+struct perf_pending_entry {
+ struct perf_pending_entry *next;
+ void (*func)(struct perf_pending_entry *);
};
/**
@@ -401,7 +402,7 @@
wait_queue_head_t waitq;
struct fasync_struct *fasync;
/* optional: for NMIs */
- struct perf_wakeup_entry wakeup;
+ struct perf_pending_entry pending;
void (*destroy)(struct perf_counter *);
struct rcu_head rcu_head;