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