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gerrit-public.fairphone.software / kernel / msm-4.9 / 5ec9b067bf68c93882650785b18b379cc0c36df6 / . / arch / s390 / hypfs / hypfs.h
blob: f41e0ef7fdf94578166eafee6d55df6a6f946390 [file] [log] [blame]
Michael Holzheu24bbb1f2006-06-23 02:05:06 -0700[diff] [blame]1/*
Michael Holzheu24bbb1f2006-06-23 02:05:06 -0700[diff] [blame]2 * Hypervisor filesystem for Linux on s390.
3 *
Heiko Carstensa53c8fa2012-07-20 11:15:04 +0200[diff] [blame]4 * Copyright IBM Corp. 2006
Michael Holzheu24bbb1f2006-06-23 02:05:06 -0700[diff] [blame]5 * Author(s): Michael Holzheu <holzheu@de.ibm.com>
6 */
7
8#ifndef _HYPFS_H_
9#define _HYPFS_H_
10
11#include <linux/fs.h>
12#include <linux/types.h>
Michael Holzheu57b28f62010-05-17 10:00:20 +0200[diff] [blame]13#include <linux/debugfs.h>
Michael Holzheu2fcb3682011-01-05 12:47:43 +0100[diff] [blame]14#include <linux/workqueue.h>
15#include <linux/kref.h>
Michael Holzheu24bbb1f2006-06-23 02:05:06 -0700[diff] [blame]16
17#define REG_FILE_MODE 0440
18#define UPDATE_FILE_MODE 0220
19#define DIR_MODE 0550
20
21extern struct dentry *hypfs_mkdir(struct super_block *sb, struct dentry *parent,
22 const char *name);
23
24extern struct dentry *hypfs_create_u64(struct super_block *sb,
25 struct dentry *dir, const char *name,
26 __u64 value);
27
28extern struct dentry *hypfs_create_str(struct super_block *sb,
29 struct dentry *dir, const char *name,
30 char *string);
31
Michael Holzheu31cb4bd2007-02-05 21:18:29 +0100[diff] [blame]32/* LPAR Hypervisor */
33extern int hypfs_diag_init(void);
34extern void hypfs_diag_exit(void);
35extern int hypfs_diag_create_files(struct super_block *sb, struct dentry *root);
36
37/* VM Hypervisor */
38extern int hypfs_vm_init(void);
Michael Holzheu57b28f62010-05-17 10:00:20 +0200[diff] [blame]39extern void hypfs_vm_exit(void);
Michael Holzheu31cb4bd2007-02-05 21:18:29 +0100[diff] [blame]40extern int hypfs_vm_create_files(struct super_block *sb, struct dentry *root);
41
Michael Holzheu2fcb3682011-01-05 12:47:43 +0100[diff] [blame]42/* debugfs interface */
43struct hypfs_dbfs_file;
44
45struct hypfs_dbfs_data {
46 void *buf;
47 void *buf_free_ptr;
48 size_t size;
Justin P. Mattock6eab04a2011-04-08 19:49:08 -0700[diff] [blame]49 struct hypfs_dbfs_file *dbfs_file;
Michael Holzheu2fcb3682011-01-05 12:47:43 +0100[diff] [blame]50 struct kref kref;
51};
52
53struct hypfs_dbfs_file {
54 const char *name;
55 int (*data_create)(void **data, void **data_free_ptr,
56 size_t *size);
57 void (*data_free)(const void *buf_free_ptr);
58
59 /* Private data for hypfs_dbfs.c */
60 struct hypfs_dbfs_data *data;
61 struct delayed_work data_free_work;
62 struct mutex lock;
63 struct dentry *dentry;
64};
65
66extern int hypfs_dbfs_init(void);
67extern void hypfs_dbfs_exit(void);
68extern int hypfs_dbfs_create_file(struct hypfs_dbfs_file *df);
69extern void hypfs_dbfs_remove_file(struct hypfs_dbfs_file *df);
70
Michael Holzheu24bbb1f2006-06-23 02:05:06 -0700[diff] [blame]71#endif /* _HYPFS_H_ */