extern unsigned long oprofile_started;
extern unsigned long oprofile_backtrace_depth;
-struct super_block;
struct dentry;
-void oprofile_create_files(struct super_block *sb, struct dentry *root);
+void oprofile_create_files(struct dentry *root);
int oprofile_timer_init(struct oprofile_operations *ops);
#ifdef CONFIG_OPROFILE_NMI_TIMER
int op_nmi_timer_init(struct oprofile_operations *ops);