tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * (C) 2001 Clemson University and The University of Chicago
3 *
4 * See COPYING in top-level directory.
5 */
6
7/*
8 * Definitions of downcalls used in Linux kernel module.
9 */
10
11#ifndef __DOWNCALL_H
12#define __DOWNCALL_H
13
14/*
15 * Sanitized the device-client core interaction
16 * for clean 32-64 bit usage
17 */
18struct orangefs_io_response {
19 __s64 amt_complete;
20};
21
22struct orangefs_lookup_response {
23 struct orangefs_object_kref refn;
24};
25
26struct orangefs_create_response {
27 struct orangefs_object_kref refn;
28};
29
30struct orangefs_symlink_response {
31 struct orangefs_object_kref refn;
32};
33
34struct orangefs_getattr_response {
35 struct ORANGEFS_sys_attr_s attributes;
36 char link_target[ORANGEFS_NAME_MAX];
37};
38
39struct orangefs_mkdir_response {
40 struct orangefs_object_kref refn;
41};
42
43/*
44 * duplication of some system interface structures so that I don't have
45 * to allocate extra memory
46 */
47struct orangefs_dirent {
48 char *d_name;
49 int d_length;
50 struct orangefs_khandle khandle;
51};
52
53struct orangefs_statfs_response {
54 __s64 block_size;
55 __s64 blocks_total;
56 __s64 blocks_avail;
57 __s64 files_total;
58 __s64 files_avail;
59};
60
61struct orangefs_fs_mount_response {
62 __s32 fs_id;
63 __s32 id;
64 struct orangefs_khandle root_khandle;
65};
66
67/* the getxattr response is the attribute value */
68struct orangefs_getxattr_response {
69 __s32 val_sz;
70 __s32 __pad1;
71 char val[ORANGEFS_MAX_XATTR_VALUELEN];
72};
73
74/* the listxattr response is an array of attribute names */
75struct orangefs_listxattr_response {
76 __s32 returned_count;
77 __s32 __pad1;
78 __u64 token;
79 char key[ORANGEFS_MAX_XATTR_LISTLEN * ORANGEFS_MAX_XATTR_NAMELEN];
80 __s32 keylen;
81 __s32 __pad2;
82 __s32 lengths[ORANGEFS_MAX_XATTR_LISTLEN];
83};
84
85struct orangefs_param_response {
86 union {
87 __s64 value64;
88 __s32 value32[2];
89 } u;
90};
91
92#define PERF_COUNT_BUF_SIZE 4096
93struct orangefs_perf_count_response {
94 char buffer[PERF_COUNT_BUF_SIZE];
95};
96
97#define FS_KEY_BUF_SIZE 4096
98struct orangefs_fs_key_response {
99 __s32 fs_keylen;
100 __s32 __pad1;
101 char fs_key[FS_KEY_BUF_SIZE];
102};
103
104/* 2.9.6 */
105struct orangefs_features_response {
106 __u64 features;
107};
108
109struct orangefs_downcall_s {
110 __s32 type;
111 __s32 status;
112 /* currently trailer is used only by readdir */
113 __s64 trailer_size;
114 char *trailer_buf;
115
116 union {
117 struct orangefs_io_response io;
118 struct orangefs_lookup_response lookup;
119 struct orangefs_create_response create;
120 struct orangefs_symlink_response sym;
121 struct orangefs_getattr_response getattr;
122 struct orangefs_mkdir_response mkdir;
123 struct orangefs_statfs_response statfs;
124 struct orangefs_fs_mount_response fs_mount;
125 struct orangefs_getxattr_response getxattr;
126 struct orangefs_listxattr_response listxattr;
127 struct orangefs_param_response param;
128 struct orangefs_perf_count_response perf_count;
129 struct orangefs_fs_key_response fs_key;
130 struct orangefs_features_response features;
131 } resp;
132};
133
134struct orangefs_readdir_response_s {
135 __u64 token;
136 __u64 directory_version;
137 __u32 __pad2;
138 __u32 orangefs_dirent_outcount;
139 struct orangefs_dirent *dirent_array;
140};
141
142#endif /* __DOWNCALL_H */