/* internal.h: internal procfs definitions * * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #include <linux/proc_fs.h>struct  ctl_table_header; extern struct proc_dir_entry proc_root;#ifdef CONFIG_PROC_SYSCTLextern int proc_sys_init(void);extern void sysctl_head_put(struct ctl_table_header *head);#elsestatic inline void proc_sys_init(void) { }static inline void sysctl_head_put(struct ctl_table_header *head) { }#endif#ifdef CONFIG_NETextern int proc_net_init(void);#elsestatic inline int proc_net_init(void) { return 0; }#endif struct vmalloc_info {	unsigned long	used;	unsigned long	largest_chunk;}; #ifdef CONFIG_MMU#define VMALLOC_TOTAL (VMALLOC_END - VMALLOC_START)extern void get_vmalloc_info(struct vmalloc_info *vmi);#else #define VMALLOC_TOTAL 0UL#define get_vmalloc_info(vmi)			\do {						\	(vmi)->used = 0;			\	(vmi)->largest_chunk = 0;		\} while(0)#endif extern int proc_tid_stat(struct seq_file *m, struct pid_namespace *ns,				struct pid *pid, struct task_struct *task);extern int proc_tgid_stat(struct seq_file *m, struct pid_namespace *ns,				struct pid *pid, struct task_struct *task);extern int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,				struct pid *pid, struct task_struct *task);extern int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,				struct pid *pid, struct task_struct *task);extern loff_t mem_lseek(struct file *file, loff_t offset, int orig); extern const struct file_operations proc_tid_children_operations;extern const struct file_operations proc_pid_maps_operations;extern const struct file_operations proc_tid_maps_operations;extern const struct file_operations proc_pid_numa_maps_operations;extern const struct file_operations proc_tid_numa_maps_operations;extern const struct file_operations proc_pid_smaps_operations;extern const struct file_operations proc_tid_smaps_operations;extern const struct file_operations proc_clear_refs_operations;extern const struct file_operations proc_pagemap_operations;extern const struct file_operations proc_net_operations;extern const struct inode_operations proc_net_inode_operations; struct proc_maps_private {	struct pid *pid;	struct task_struct *task;#ifdef CONFIG_MMU	struct vm_area_struct *tail_vma;#endif}; void proc_init_inodecache(void); static inline struct pid *proc_pid(struct inode *inode){	return PROC_I(inode)->pid;} static inline struct task_struct *get_proc_task(struct inode *inode){	return get_pid_task(proc_pid(inode), PIDTYPE_PID);} static inline int proc_fd(struct inode *inode){	return PROC_I(inode)->fd;} struct dentry *proc_lookup_de(struct proc_dir_entry *de, struct inode *ino,		struct dentry *dentry);int proc_readdir_de(struct proc_dir_entry *de, struct file *filp, void *dirent,		filldir_t filldir); struct pde_opener {	struct inode *inode;	struct file *file;	int (*release)(struct inode *, struct file *);	struct list_head lh;};void pde_users_dec(struct proc_dir_entry *pde); extern spinlock_t proc_subdir_lock; struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *);int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir);unsigned long task_vsize(struct mm_struct *);unsigned long task_statm(struct mm_struct *,	unsigned long *, unsigned long *, unsigned long *, unsigned long *);void task_mem(struct seq_file *, struct mm_struct *); static inline struct proc_dir_entry *pde_get(struct proc_dir_entry *pde){	atomic_inc(&pde->count);	return pde;}void pde_put(struct proc_dir_entry *pde); int proc_fill_super(struct super_block *);struct inode *proc_get_inode(struct super_block *, struct proc_dir_entry *);int proc_remount(struct super_block *sb, int *flags, char *data); /* * These are generic /proc routines that use the internal * "struct proc_dir_entry" tree to traverse the filesystem. * * The /proc root directory has extended versions to take care * of the /proc/<pid> subdirectories. */int proc_readdir(struct file *, void *, filldir_t);struct dentry *proc_lookup(struct inode *, struct dentry *, struct nameidata *);   /* Lookups */typedef struct dentry *instantiate_t(struct inode *, struct dentry *,				struct task_struct *, const void *);int proc_fill_cache(struct file *filp, void *dirent, filldir_t filldir,	const char *name, int len,	instantiate_t instantiate, struct task_struct *task, const void *ptr);int pid_revalidate(struct dentry *dentry, struct nameidata *nd);struct inode *proc_pid_make_inode(struct super_block * sb, struct task_struct *task);extern const struct dentry_operations pid_dentry_operations;int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat);int proc_setattr(struct dentry *dentry, struct iattr *attr); extern const struct inode_operations proc_ns_dir_inode_operations;extern const struct file_operations proc_ns_dir_operations;