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Linux kernel mirror (for testing)
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linux
1/*
2 * arch/s390/hypfs/hypfs.h
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>
14#include <linux/debugfs.h>
15#include <linux/workqueue.h>
16#include <linux/kref.h>
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
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);
40extern void hypfs_vm_exit(void);
41extern int hypfs_vm_create_files(struct super_block *sb, struct dentry *root);
42
43/* debugfs interface */
44struct hypfs_dbfs_file;
45
46struct hypfs_dbfs_data {
47 void *buf;
48 void *buf_free_ptr;
49 size_t size;
50 struct hypfs_dbfs_file *dbfs_file;;
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
72#endif /* _HYPFS_H_ */