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gerrit-public.fairphone.software / kernel / msm-4.9 / 3cadf4b864cab9d19b935289c004799d1065cd03 / . / arch / s390 / hypfs / hypfs.h
blob: d9df5a060a83fdb96ca567974ac443395872f094 [file] [log] [blame]
Michael Holzheu24bbb1f2006-06-23 02:05:06 -0700[diff] [blame]1/*
Michael Holzheuf19bfb22006-09-20 15:58:44 +0200[diff] [blame]2 * arch/s390/hypfs/hypfs.h
Michael Holzheu24bbb1f2006-06-23 02:05:06 -0700[diff] [blame]3 * Hypervisor filesystem for Linux on s390.
4 *
5 * Copyright (C) IBM Corp. 2006
6 * Author(s): Michael Holzheu <holzheu@de.ibm.com>
7 */
8
9#ifndef _HYPFS_H_
10#define _HYPFS_H_
11
12#include <linux/fs.h>
13#include <linux/types.h>
Michael Holzheu57b28f62010-05-17 10:00:20 +0200[diff] [blame]14#include <linux/debugfs.h>
Michael Holzheu2fcb3682011-01-05 12:47:43 +0100[diff] [blame]15#include <linux/workqueue.h>
16#include <linux/kref.h>
Michael Holzheu24bbb1f2006-06-23 02:05:06 -0700[diff] [blame]17
18#define REG_FILE_MODE 0440
19#define UPDATE_FILE_MODE 0220
20#define DIR_MODE 0550
21
22extern struct dentry *hypfs_mkdir(struct super_block *sb, struct dentry *parent,
23 const char *name);
24
25extern struct dentry *hypfs_create_u64(struct super_block *sb,
26 struct dentry *dir, const char *name,
27 __u64 value);
28
29extern struct dentry *hypfs_create_str(struct super_block *sb,
30 struct dentry *dir, const char *name,
31 char *string);
32
Michael Holzheu31cb4bd2007-02-05 21:18:29 +0100[diff] [blame]33/* LPAR Hypervisor */
34extern int hypfs_diag_init(void);
35extern void hypfs_diag_exit(void);
36extern int hypfs_diag_create_files(struct super_block *sb, struct dentry *root);
37
38/* VM Hypervisor */
39extern int hypfs_vm_init(void);
Michael Holzheu57b28f62010-05-17 10:00:20 +0200[diff] [blame]40extern void hypfs_vm_exit(void);
Michael Holzheu31cb4bd2007-02-05 21:18:29 +0100[diff] [blame]41extern int hypfs_vm_create_files(struct super_block *sb, struct dentry *root);
42
Michael Holzheu2fcb3682011-01-05 12:47:43 +0100[diff] [blame]43/* debugfs interface */
44struct hypfs_dbfs_file;
45
46struct hypfs_dbfs_data {
47 void *buf;
48 void *buf_free_ptr;
49 size_t size;
Justin P. Mattock6eab04a2011-04-08 19:49:08 -0700[diff] [blame]50 struct hypfs_dbfs_file *dbfs_file;
Michael Holzheu2fcb3682011-01-05 12:47:43 +0100[diff] [blame]51 struct kref kref;
52};
53
54struct hypfs_dbfs_file {
55 const char *name;
56 int (*data_create)(void **data, void **data_free_ptr,
57 size_t *size);
58 void (*data_free)(const void *buf_free_ptr);
59
60 /* Private data for hypfs_dbfs.c */
61 struct hypfs_dbfs_data *data;
62 struct delayed_work data_free_work;
63 struct mutex lock;
64 struct dentry *dentry;
65};
66
67extern int hypfs_dbfs_init(void);
68extern void hypfs_dbfs_exit(void);
69extern int hypfs_dbfs_create_file(struct hypfs_dbfs_file *df);
70extern void hypfs_dbfs_remove_file(struct hypfs_dbfs_file *df);
71
Michael Holzheu24bbb1f2006-06-23 02:05:06 -0700[diff] [blame]72#endif /* _HYPFS_H_ */