extern unsigned long fs_buffer_size;
extern unsigned long fs_cpu_buffer_size;
extern unsigned long fs_buffer_watershed;
-extern struct oprofile_operations * oprofile_ops;
+extern struct oprofile_operations oprofile_ops;
extern unsigned long oprofile_started;
+extern unsigned long backtrace_depth;
struct super_block;
struct dentry;
void oprofile_create_files(struct super_block * sb, struct dentry * root);
+void oprofile_timer_init(struct oprofile_operations * ops);
+
+int oprofile_set_backtrace(unsigned long depth);
#endif /* OPROF_H */