root/fs/proc/internal.h

INCLUDED FROM

DEFINITIONS

1. proc_sys_init
2. proc_net_init
3. proc_pid
4. get_proc_task
5. proc_fd

/* 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)

extern int nommu_vma_show(struct seq_file *, struct vm_area_struct *);
#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 file_operations proc_kmsg_operations;
extern const struct inode_operations proc_net_inode_operations;

void free_proc_entry(struct proc_dir_entry *de);

int 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;
};