ring_buffer.c File Reference

#include <linux/perf_event.h>
#include <linux/vmalloc.h>
#include <linux/slab.h>
#include "internal.h"

Go to the source code of this file.

Functions
int	perf_output_begin (struct perf_output_handle *handle, struct perf_event *event, unsigned int size)
unsigned int	perf_output_copy (struct perf_output_handle *handle, const void *buf, unsigned int len)
unsigned int	perf_output_skip (struct perf_output_handle *handle, unsigned int len)
void	perf_output_end (struct perf_output_handle *handle)
struct page *	perf_mmap_to_page (struct ring_buffer *rb, unsigned long pgoff)
struct ring_buffer *	rb_alloc (int nr_pages, long watermark, int cpu, int flags)
void	rb_free (struct ring_buffer *rb)

Function Documentation

struct page* perf_mmap_to_page ( struct ring_buffer *  rb, unsigned long  pgoff  )

read

Definition at line 230 of file ring_buffer.c.

int perf_output_begin	(	struct perf_output_handle *	handle,
		struct perf_event *	event,
		unsigned int	size
	)

Definition at line 100 of file ring_buffer.c.

unsigned int perf_output_copy	(	struct perf_output_handle *	handle,
		const void *	buf,
		unsigned int	len
	)

Definition at line 185 of file ring_buffer.c.

void perf_output_end

(

struct perf_output_handle *

handle

)

Definition at line 197 of file ring_buffer.c.

unsigned int perf_output_skip	(	struct perf_output_handle *	handle,
		unsigned int	len
	)

Definition at line 191 of file ring_buffer.c.

struct ring_buffer* rb_alloc ( int  nr_pages, long  watermark, int  cpu, int  flags  )

read

Definition at line 254 of file ring_buffer.c.

void rb_free

(

struct ring_buffer *

rb

)

Definition at line 304 of file ring_buffer.c.