Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
[cris-mirror.git] / fs / proc / internal.h
blobc03e8d3a3a5b550ef8b88bc60776b48b42795065
1 /* internal.h: internal procfs definitions
3 * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
12 #include <linux/proc_fs.h>
14 extern struct proc_dir_entry proc_root;
15 #ifdef CONFIG_PROC_SYSCTL
16 extern int proc_sys_init(void);
17 #else
18 static inline void proc_sys_init(void) { }
19 #endif
20 #ifdef CONFIG_NET
21 extern int proc_net_init(void);
22 #else
23 static inline int proc_net_init(void) { return 0; }
24 #endif
26 struct vmalloc_info {
27 unsigned long used;
28 unsigned long largest_chunk;
31 extern struct mm_struct *mm_for_maps(struct task_struct *);
33 #ifdef CONFIG_MMU
34 #define VMALLOC_TOTAL (VMALLOC_END - VMALLOC_START)
35 extern void get_vmalloc_info(struct vmalloc_info *vmi);
36 #else
38 #define VMALLOC_TOTAL 0UL
39 #define get_vmalloc_info(vmi) \
40 do { \
41 (vmi)->used = 0; \
42 (vmi)->largest_chunk = 0; \
43 } while(0)
44 #endif
46 extern int proc_tid_stat(struct seq_file *m, struct pid_namespace *ns,
47 struct pid *pid, struct task_struct *task);
48 extern int proc_tgid_stat(struct seq_file *m, struct pid_namespace *ns,
49 struct pid *pid, struct task_struct *task);
50 extern int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
51 struct pid *pid, struct task_struct *task);
52 extern int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
53 struct pid *pid, struct task_struct *task);
54 extern loff_t mem_lseek(struct file *file, loff_t offset, int orig);
56 extern const struct file_operations proc_maps_operations;
57 extern const struct file_operations proc_numa_maps_operations;
58 extern const struct file_operations proc_smaps_operations;
59 extern const struct file_operations proc_clear_refs_operations;
60 extern const struct file_operations proc_pagemap_operations;
61 extern const struct file_operations proc_net_operations;
62 extern const struct inode_operations proc_net_inode_operations;
64 void proc_init_inodecache(void);
66 static inline struct pid *proc_pid(struct inode *inode)
68 return PROC_I(inode)->pid;
71 static inline struct task_struct *get_proc_task(struct inode *inode)
73 return get_pid_task(proc_pid(inode), PIDTYPE_PID);
76 static inline int proc_fd(struct inode *inode)
78 return PROC_I(inode)->fd;
81 struct dentry *proc_lookup_de(struct proc_dir_entry *de, struct inode *ino,
82 struct dentry *dentry);
83 int proc_readdir_de(struct proc_dir_entry *de, struct file *filp, void *dirent,
84 filldir_t filldir);
86 struct pde_opener {
87 struct inode *inode;
88 struct file *file;
89 int (*release)(struct inode *, struct file *);
90 struct list_head lh;
92 void pde_users_dec(struct proc_dir_entry *pde);
94 extern spinlock_t proc_subdir_lock;
96 struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *);
97 int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir);
98 unsigned long task_vsize(struct mm_struct *);
99 unsigned long task_statm(struct mm_struct *,
100 unsigned long *, unsigned long *, unsigned long *, unsigned long *);
101 void task_mem(struct seq_file *, struct mm_struct *);
103 static inline struct proc_dir_entry *pde_get(struct proc_dir_entry *pde)
105 atomic_inc(&pde->count);
106 return pde;
108 void pde_put(struct proc_dir_entry *pde);
110 int proc_fill_super(struct super_block *);
111 struct inode *proc_get_inode(struct super_block *, struct proc_dir_entry *);
114 * These are generic /proc routines that use the internal
115 * "struct proc_dir_entry" tree to traverse the filesystem.
117 * The /proc root directory has extended versions to take care
118 * of the /proc/<pid> subdirectories.
120 int proc_readdir(struct file *, void *, filldir_t);
121 struct dentry *proc_lookup(struct inode *, struct dentry *, struct nameidata *);