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1da177e4 LT |
1 | /* internal.h: internal procfs definitions |
2 | * | |
3 | * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. | |
4 | * Written by David Howells (dhowells@redhat.com) | |
5 | * | |
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. | |
10 | */ | |
11 | ||
12 | #include <linux/proc_fs.h> | |
13 | ||
c74c120a | 14 | extern struct proc_dir_entry proc_root; |
05565b65 | 15 | #ifdef CONFIG_PROC_SYSCTL |
77b14db5 | 16 | extern int proc_sys_init(void); |
05565b65 AM |
17 | #else |
18 | static inline void proc_sys_init(void) { } | |
19 | #endif | |
457c4cbc EB |
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 | |
77b14db5 | 25 | |
1da177e4 LT |
26 | struct vmalloc_info { |
27 | unsigned long used; | |
28 | unsigned long largest_chunk; | |
29 | }; | |
30 | ||
831830b5 AV |
31 | extern struct mm_struct *mm_for_maps(struct task_struct *); |
32 | ||
1da177e4 LT |
33 | #ifdef CONFIG_MMU |
34 | #define VMALLOC_TOTAL (VMALLOC_END - VMALLOC_START) | |
35 | extern void get_vmalloc_info(struct vmalloc_info *vmi); | |
36 | #else | |
37 | ||
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) | |
1da177e4 LT |
44 | #endif |
45 | ||
ee992744 EB |
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); | |
df5f8314 EB |
50 | extern int proc_pid_status(struct seq_file *m, struct pid_namespace *ns, |
51 | struct pid *pid, struct task_struct *task); | |
a56d3fc7 EB |
52 | extern int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns, |
53 | struct pid *pid, struct task_struct *task); | |
85863e47 | 54 | extern loff_t mem_lseek(struct file *file, loff_t offset, int orig); |
1da177e4 | 55 | |
00977a59 AV |
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; | |
f248dcb3 | 59 | extern const struct file_operations proc_clear_refs_operations; |
85863e47 | 60 | extern const struct file_operations proc_pagemap_operations; |
e9720acd PE |
61 | extern const struct file_operations proc_net_operations; |
62 | extern const struct inode_operations proc_net_inode_operations; | |
99f89551 | 63 | |
f2beb798 SW |
64 | struct proc_maps_private { |
65 | struct pid *pid; | |
66 | struct task_struct *task; | |
67 | #ifdef CONFIG_MMU | |
68 | struct vm_area_struct *tail_vma; | |
69 | #endif | |
70 | }; | |
71 | ||
5bcd7ff9 | 72 | void proc_init_inodecache(void); |
fee781e6 | 73 | |
13b41b09 | 74 | static inline struct pid *proc_pid(struct inode *inode) |
99f89551 | 75 | { |
13b41b09 | 76 | return PROC_I(inode)->pid; |
99f89551 EB |
77 | } |
78 | ||
79 | static inline struct task_struct *get_proc_task(struct inode *inode) | |
1da177e4 | 80 | { |
13b41b09 | 81 | return get_pid_task(proc_pid(inode), PIDTYPE_PID); |
1da177e4 LT |
82 | } |
83 | ||
aed7a6c4 | 84 | static inline int proc_fd(struct inode *inode) |
1da177e4 | 85 | { |
aed7a6c4 | 86 | return PROC_I(inode)->fd; |
1da177e4 | 87 | } |
e9720acd PE |
88 | |
89 | struct dentry *proc_lookup_de(struct proc_dir_entry *de, struct inode *ino, | |
90 | struct dentry *dentry); | |
91 | int proc_readdir_de(struct proc_dir_entry *de, struct file *filp, void *dirent, | |
92 | filldir_t filldir); | |
881adb85 AD |
93 | |
94 | struct pde_opener { | |
95 | struct inode *inode; | |
96 | struct file *file; | |
97 | int (*release)(struct inode *, struct file *); | |
98 | struct list_head lh; | |
99 | }; | |
3dec7f59 | 100 | void pde_users_dec(struct proc_dir_entry *pde); |
3174c21b AV |
101 | |
102 | extern spinlock_t proc_subdir_lock; | |
103 | ||
104 | struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *); | |
105 | int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir); | |
106 | unsigned long task_vsize(struct mm_struct *); | |
a2ade7b6 AD |
107 | unsigned long task_statm(struct mm_struct *, |
108 | unsigned long *, unsigned long *, unsigned long *, unsigned long *); | |
3174c21b AV |
109 | void task_mem(struct seq_file *, struct mm_struct *); |
110 | ||
135d5655 AD |
111 | static inline struct proc_dir_entry *pde_get(struct proc_dir_entry *pde) |
112 | { | |
113 | atomic_inc(&pde->count); | |
114 | return pde; | |
115 | } | |
116 | void pde_put(struct proc_dir_entry *pde); | |
3174c21b | 117 | |
3174c21b | 118 | int proc_fill_super(struct super_block *); |
6d1b6e4e | 119 | struct inode *proc_get_inode(struct super_block *, struct proc_dir_entry *); |
3174c21b AV |
120 | |
121 | /* | |
122 | * These are generic /proc routines that use the internal | |
123 | * "struct proc_dir_entry" tree to traverse the filesystem. | |
124 | * | |
125 | * The /proc root directory has extended versions to take care | |
126 | * of the /proc/<pid> subdirectories. | |
127 | */ | |
128 | int proc_readdir(struct file *, void *, filldir_t); | |
129 | struct dentry *proc_lookup(struct inode *, struct dentry *, struct nameidata *); | |
6b4e306a EB |
130 | |
131 | ||
132 | ||
133 | /* Lookups */ | |
134 | typedef struct dentry *instantiate_t(struct inode *, struct dentry *, | |
135 | struct task_struct *, const void *); | |
136 | int proc_fill_cache(struct file *filp, void *dirent, filldir_t filldir, | |
137 | const char *name, int len, | |
138 | instantiate_t instantiate, struct task_struct *task, const void *ptr); | |
139 | int pid_revalidate(struct dentry *dentry, struct nameidata *nd); | |
140 | struct inode *proc_pid_make_inode(struct super_block * sb, struct task_struct *task); | |
141 | extern const struct dentry_operations pid_dentry_operations; | |
142 | int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat); | |
143 | int proc_setattr(struct dentry *dentry, struct iattr *attr); | |
144 | ||
145 | extern const struct inode_operations proc_ns_dir_inode_operations; | |
146 | extern const struct file_operations proc_ns_dir_operations; | |
147 |