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
43struct orangefs_statfs_response {
44 __s64 block_size;
45 __s64 blocks_total;
46 __s64 blocks_avail;
47 __s64 files_total;
48 __s64 files_avail;
49};
50
51struct orangefs_fs_mount_response {
52 __s32 fs_id;
53 __s32 id;
54 struct orangefs_khandle root_khandle;
55};
56
57/* the getxattr response is the attribute value */
58struct orangefs_getxattr_response {
59 __s32 val_sz;
60 __s32 __pad1;
61 char val[ORANGEFS_MAX_XATTR_VALUELEN];
62};
63
64/* the listxattr response is an array of attribute names */
65struct orangefs_listxattr_response {
66 __s32 returned_count;
67 __s32 __pad1;
68 __u64 token;
69 char key[ORANGEFS_MAX_XATTR_LISTLEN * ORANGEFS_MAX_XATTR_NAMELEN];
70 __s32 keylen;
71 __s32 __pad2;
72 __s32 lengths[ORANGEFS_MAX_XATTR_LISTLEN];
73};
74
75struct orangefs_param_response {
76 union {
77 __s64 value64;
78 __s32 value32[2];
79 } u;
80};
81
82#define PERF_COUNT_BUF_SIZE 4096
83struct orangefs_perf_count_response {
84 char buffer[PERF_COUNT_BUF_SIZE];
85};
86
87#define FS_KEY_BUF_SIZE 4096
88struct orangefs_fs_key_response {
89 __s32 fs_keylen;
90 __s32 __pad1;
91 char fs_key[FS_KEY_BUF_SIZE];
92};
93
94/* 2.9.6 */
95struct orangefs_features_response {
96 __u64 features;
97};
98
99struct orangefs_downcall_s {
100 __s32 type;
101 __s32 status;
102 /* currently trailer is used only by readdir */
103 __s64 trailer_size;
104 char *trailer_buf;
105
106 union {
107 struct orangefs_io_response io;
108 struct orangefs_lookup_response lookup;
109 struct orangefs_create_response create;
110 struct orangefs_symlink_response sym;
111 struct orangefs_getattr_response getattr;
112 struct orangefs_mkdir_response mkdir;
113 struct orangefs_statfs_response statfs;
114 struct orangefs_fs_mount_response fs_mount;
115 struct orangefs_getxattr_response getxattr;
116 struct orangefs_listxattr_response listxattr;
117 struct orangefs_param_response param;
118 struct orangefs_perf_count_response perf_count;
119 struct orangefs_fs_key_response fs_key;
120 struct orangefs_features_response features;
121 } resp;
122};
123
124/*
125 * The readdir response comes in the trailer. It is followed by the
126 * directory entries as described in dir.c.
127 */
128
129struct orangefs_readdir_response_s {
130 __u64 token;
131 __u64 directory_version;
132 __u32 __pad2;
133 __u32 orangefs_dirent_outcount;
134};
135
136#endif /* __DOWNCALL_H */