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linux/drivers/oprofile/event_buffer.h
Linus Torvalds 92fb83afd6 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile: (21 commits)
  OProfile: Fix buffer synchronization for IBS
  oprofile: hotplug cpu fix
  oprofile: fixing whitespaces in arch/x86/oprofile/*
  oprofile: fixing whitespaces in arch/x86/oprofile/*
  oprofile: fixing whitespaces in drivers/oprofile/*
  x86/oprofile: add the logic for enabling additional IBS bits
  x86/oprofile: reordering functions in nmi_int.c
  x86/oprofile: removing unused function parameter in add_ibs_begin()
  oprofile: more whitespace fixes
  oprofile: whitespace fixes
  OProfile: Rename IBS sysfs dir into "ibs_op"
  OProfile: Rework string handling in setup_ibs_files()
  OProfile: Rework oprofile_add_ibs_sample() function
  oprofile: discover counters for op ppro too
  oprofile: Implement Intel architectural perfmon support
  oprofile: Don't report Nehalem as core_2
  oprofile: drop const in num counters field
  Revert "Oprofile Multiplexing Patch"
  x86, oprofile: BUG: using smp_processor_id() in preemptible code
  x86/oprofile: fix on_each_cpu build error
  ...

Manually fixed trivial conflicts in
	drivers/oprofile/{cpu_buffer.c,event_buffer.h}
2008-10-23 10:05:40 -07:00

41 lines
858 B
C

/**
* @file event_buffer.h
*
* @remark Copyright 2002 OProfile authors
* @remark Read the file COPYING
*
* @author John Levon <levon@movementarian.org>
*/
#ifndef EVENT_BUFFER_H
#define EVENT_BUFFER_H
#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 INVALID_COOKIE ~0UL
#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 */