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 14 #ifdef CONFIG_PROC_SYSCTL 15 extern int proc_sys_init(void); 16 #else 17 static inline void proc_sys_init(void) { } 18 #endif 19 #ifdef CONFIG_NET 20 extern int proc_net_init(void); 21 #else 22 static inline int proc_net_init(void) { return 0; } 23 #endif 24 25 struct vmalloc_info { 26 unsigned long used; 27 unsigned long largest_chunk; 28 }; 29 30 extern struct mm_struct *mm_for_maps(struct task_struct *); 31 32 #ifdef CONFIG_MMU 33 #define VMALLOC_TOTAL (VMALLOC_END - VMALLOC_START) 34 extern void get_vmalloc_info(struct vmalloc_info *vmi); 35 #else 36 37 #define VMALLOC_TOTAL 0UL 38 #define get_vmalloc_info(vmi) \ 39 do { \ 40 (vmi)->used = 0; \ 41 (vmi)->largest_chunk = 0; \ 42 } while(0) 43 44 extern int nommu_vma_show(struct seq_file *, struct vm_area_struct *); 45 #endif 46 47 extern int maps_protect; 48 49 extern void create_seq_entry(char *name, mode_t mode, 50 const struct file_operations *f); 51 extern int proc_exe_link(struct inode *, struct path *); 52 extern int proc_tid_stat(struct seq_file *m, struct pid_namespace *ns, 53 struct pid *pid, struct task_struct *task); 54 extern int proc_tgid_stat(struct seq_file *m, struct pid_namespace *ns, 55 struct pid *pid, struct task_struct *task); 56 extern int proc_pid_status(struct seq_file *m, struct pid_namespace *ns, 57 struct pid *pid, struct task_struct *task); 58 extern int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns, 59 struct pid *pid, struct task_struct *task); 60 extern loff_t mem_lseek(struct file *file, loff_t offset, int orig); 61 62 extern const struct file_operations proc_maps_operations; 63 extern const struct file_operations proc_numa_maps_operations; 64 extern const struct file_operations proc_smaps_operations; 65 extern const struct file_operations proc_clear_refs_operations; 66 extern const struct file_operations proc_pagemap_operations; 67 extern const struct file_operations proc_net_operations; 68 extern const struct inode_operations proc_net_inode_operations; 69 70 void free_proc_entry(struct proc_dir_entry *de); 71 72 int proc_init_inodecache(void); 73 74 static inline struct pid *proc_pid(struct inode *inode) 75 { 76 return PROC_I(inode)->pid; 77 } 78 79 static inline struct task_struct *get_proc_task(struct inode *inode) 80 { 81 return get_pid_task(proc_pid(inode), PIDTYPE_PID); 82 } 83 84 static inline int proc_fd(struct inode *inode) 85 { 86 return PROC_I(inode)->fd; 87 } 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); 93