struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *);
struct dentry *proc_pid_unhash(struct task_struct *p);
void proc_pid_flush(struct dentry *proc_dentry);
int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir);
struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *);
struct dentry *proc_pid_unhash(struct task_struct *p);
void proc_pid_flush(struct dentry *proc_dentry);
int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir);