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, const struct file_operations *f); 50 extern int proc_exe_link(struct inode *, struct dentry **, struct vfsmount **); 51 extern int proc_tid_stat(struct task_struct *, char *); 52 extern int proc_tgid_stat(struct task_struct *, char *); 53 extern int proc_pid_status(struct task_struct *, char *); 54 extern int proc_pid_statm(struct task_struct *, char *); 55 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 60 extern const struct file_operations proc_maps_operations; 61 extern const struct file_operations proc_numa_maps_operations; 62 extern const struct file_operations proc_smaps_operations; 63 64 65 void free_proc_entry(struct proc_dir_entry *de); 66 67 int proc_init_inodecache(void); 68 69 static inline struct pid *proc_pid(struct inode *inode) 70 { 71 return PROC_I(inode)->pid; 72 } 73 74 static inline struct task_struct *get_proc_task(struct inode *inode) 75 { 76 return get_pid_task(proc_pid(inode), PIDTYPE_PID); 77 } 78 79 static inline int proc_fd(struct inode *inode) 80 { 81 return PROC_I(inode)->fd; 82 } 83