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* @file event_buffer.h
* @remark Copyright 2002 OProfile authors
* @remark Read the file COPYING
* @author John Levon <>
#include <linux/types.h>
#include <asm/mutex.h>
int alloc_event_buffer(void);
void free_event_buffer(void);
* Add data to the event buffer.
* The data passed is free-form, but typically consists of
* file offsets, dcookies, context information, and ESCAPE codes.
void add_event_entry(unsigned long data);
/* wake up the process sleeping on the event file */
void wake_up_buffer_waiter(void);
#define NO_COOKIE 0UL
extern const struct file_operations event_buffer_fops;
/* mutex between sync_cpu_buffers() and the
* file reading code.
extern struct mutex buffer_mutex;
#endif /* EVENT_BUFFER_H */