/* 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> extern struct proc_dir_entry proc_root; #ifdef CONFIG_PROC_SYSCTL extern int proc_sys_init(void); #else static inline void proc_sys_init(void) { } #endif #ifdef CONFIG_NET extern int proc_net_init(void); #else static inline int proc_net_init(void) { return 0; } #endif struct vmalloc_info { unsigned long used; unsigned long largest_chunk; }; extern struct mm_struct *mm_for_maps(struct task_struct *); #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_maps_operations; extern const struct file_operations proc_numa_maps_operations; extern const struct file_operations proc_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; void free_proc_entry(struct proc_dir_entry *de); 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 *); int task_statm(struct mm_struct *, int *, int *, int *, int *); void task_mem(struct seq_file *, struct mm_struct *); struct proc_dir_entry *de_get(struct proc_dir_entry *de); void de_put(struct proc_dir_entry *de); extern struct vfsmount *proc_mnt; int proc_fill_super(struct super_block *); struct inode *proc_get_inode(struct super_block *, unsigned int, struct proc_dir_entry *); /* * 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 *);