diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c
index b846af6..2e03b6d 100644
--- a/drivers/oprofile/cpu_buffer.c
+++ b/drivers/oprofile/cpu_buffer.c
@@ -364,10 +364,11 @@
 /*
  * Add samples with data to the ring buffer.
  *
- * Use op_cpu_buffer_add_data(&entry, val) to add data and
- * op_cpu_buffer_write_commit(&entry) to commit the sample.
+ * Use oprofile_add_data(&entry, val) to add data and
+ * oprofile_write_commit(&entry) to commit the sample.
  */
-void oprofile_add_data(struct op_entry *entry, struct pt_regs * const regs,
+void
+oprofile_write_reserve(struct op_entry *entry, struct pt_regs * const regs,
 		       unsigned long pc, int code, int size)
 {
 	struct op_sample *sample;
@@ -395,6 +396,16 @@
 	cpu_buf->sample_lost_overflow++;
 }
 
+int oprofile_add_data(struct op_entry *entry, unsigned long val)
+{
+	return op_cpu_buffer_add_data(entry, val);
+}
+
+int oprofile_write_commit(struct op_entry *entry)
+{
+	return op_cpu_buffer_write_commit(entry);
+}
+
 void oprofile_add_pc(unsigned long pc, int is_kernel, unsigned long event)
 {
 	struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(cpu_buffer);
diff --git a/drivers/oprofile/cpu_buffer.h b/drivers/oprofile/cpu_buffer.h
index 525cc4d..63f81c4 100644
--- a/drivers/oprofile/cpu_buffer.h
+++ b/drivers/oprofile/cpu_buffer.h
@@ -35,13 +35,7 @@
 	unsigned long data[0];
 };
 
-struct op_entry {
-	struct ring_buffer_event *event;
-	struct op_sample *sample;
-	unsigned long irq_flags;
-	unsigned long size;
-	unsigned long *data;
-};
+struct op_entry;
 
 struct oprofile_cpu_buffer {
 	unsigned long buffer_size;