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 extern int proc_sys_init(void); 15 16 struct vmalloc_info { 17 unsigned long used; 18 unsigned long largest_chunk; 19 }; 20 21 #ifdef CONFIG_MMU 22 #define VMALLOC_TOTAL (VMALLOC_END - VMALLOC_START) 23 extern void get_vmalloc_info(struct vmalloc_info *vmi); 24 #else 25 26 #define VMALLOC_TOTAL 0UL 27 #define get_vmalloc_info(vmi) \ 28 do { \ 29 (vmi)->used = 0; \ 30 (vmi)->largest_chunk = 0; \ 31 } while(0) 32 33 extern int nommu_vma_show(struct seq_file *, struct vm_area_struct *); 34 #endif 35 36 extern void create_seq_entry(char *name, mode_t mode, const struct file_operations *f); 37 extern int proc_exe_link(struct inode *, struct dentry **, struct vfsmount **); 38 extern int proc_tid_stat(struct task_struct *, char *); 39 extern int proc_tgid_stat(struct task_struct *, char *); 40 extern int proc_pid_status(struct task_struct *, char *); 41 extern int proc_pid_statm(struct task_struct *, char *); 42 43 extern const struct file_operations proc_maps_operations; 44 extern const struct file_operations proc_numa_maps_operations; 45 extern const struct file_operations proc_smaps_operations; 46 47 extern const struct file_operations proc_maps_operations; 48 extern const struct file_operations proc_numa_maps_operations; 49 extern const struct file_operations proc_smaps_operations; 50 51 52 void free_proc_entry(struct proc_dir_entry *de); 53 54 int proc_init_inodecache(void); 55 56 static inline struct pid *proc_pid(struct inode *inode) 57 { 58 return PROC_I(inode)->pid; 59 } 60 61 static inline struct task_struct *get_proc_task(struct inode *inode) 62 { 63 return get_pid_task(proc_pid(inode), PIDTYPE_PID); 64 } 65 66 static inline int proc_fd(struct inode *inode) 67 { 68 return PROC_I(inode)->fd; 69 } 70