File: /usr/src/linux/include/linux/raid/md_compatible.h
1
2 /*
3 md.h : Multiple Devices driver compatibility layer for Linux 2.0/2.2
4 Copyright (C) 1998 Ingo Molnar
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
9 any later version.
10
11 You should have received a copy of the GNU General Public License
12 (for example /usr/src/linux/COPYING); if not, write to the Free
13 Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
14 */
15
16 #include <linux/version.h>
17
18 #ifndef _MD_COMPATIBLE_H
19 #define _MD_COMPATIBLE_H
20
21 /** 2.3/2.4 stuff: **/
22
23 #include <linux/reboot.h>
24 #include <linux/vmalloc.h>
25 #include <linux/blkpg.h>
26
27 /* 000 */
28 #define md__get_free_pages(x,y) __get_free_pages(x,y)
29
30 #if defined(__i386__) || defined(__x86_64__)
31 /* 001 */
32 static __inline__ int md_cpu_has_mmx(void)
33 {
34 return test_bit(X86_FEATURE_MMX, &boot_cpu_data.x86_capability);
35 }
36 #else
37 #define md_cpu_has_mmx(x) (0)
38 #endif
39
40 /* 002 */
41 #define md_clear_page(page) clear_page(page)
42
43 /* 003 */
44 #define MD_EXPORT_SYMBOL(x) EXPORT_SYMBOL(x)
45
46 /* 004 */
47 #define md_copy_to_user(x,y,z) copy_to_user(x,y,z)
48
49 /* 005 */
50 #define md_copy_from_user(x,y,z) copy_from_user(x,y,z)
51
52 /* 006 */
53 #define md_put_user put_user
54
55 /* 007 */
56 static inline int md_capable_admin(void)
57 {
58 return capable(CAP_SYS_ADMIN);
59 }
60
61 /* 008 */
62 #define MD_FILE_TO_INODE(file) ((file)->f_dentry->d_inode)
63
64 /* 009 */
65 static inline void md_flush_signals (void)
66 {
67 spin_lock(¤t->sigmask_lock);
68 flush_signals(current);
69 spin_unlock(¤t->sigmask_lock);
70 }
71
72 /* 010 */
73 static inline void md_init_signals (void)
74 {
75 current->exit_signal = SIGCHLD;
76 siginitsetinv(¤t->blocked, sigmask(SIGKILL));
77 }
78
79 /* 011 */
80 #define md_signal_pending signal_pending
81
82 /* 012 - md_set_global_readahead - nowhere used */
83
84 /* 013 */
85 #define md_mdelay(x) mdelay(x)
86
87 /* 014 */
88 #define MD_SYS_DOWN SYS_DOWN
89 #define MD_SYS_HALT SYS_HALT
90 #define MD_SYS_POWER_OFF SYS_POWER_OFF
91
92 /* 015 */
93 #define md_register_reboot_notifier register_reboot_notifier
94
95 /* 016 */
96 #define md_test_and_set_bit test_and_set_bit
97
98 /* 017 */
99 #define md_test_and_clear_bit test_and_clear_bit
100
101 /* 018 */
102 #define md_atomic_read atomic_read
103 #define md_atomic_set atomic_set
104
105 /* 019 */
106 #define md_lock_kernel lock_kernel
107 #define md_unlock_kernel unlock_kernel
108
109 /* 020 */
110
111 #include <linux/init.h>
112
113 #define md__init __init
114 #define md__initdata __initdata
115 #define md__initfunc(__arginit) __initfunc(__arginit)
116
117 /* 021 */
118
119
120 /* 022 */
121
122 #define md_list_head list_head
123 #define MD_LIST_HEAD(name) LIST_HEAD(name)
124 #define MD_INIT_LIST_HEAD(ptr) INIT_LIST_HEAD(ptr)
125 #define md_list_add list_add
126 #define md_list_del list_del
127 #define md_list_empty list_empty
128
129 #define md_list_entry(ptr, type, member) list_entry(ptr, type, member)
130
131 /* 023 */
132
133 #define md_schedule_timeout schedule_timeout
134
135 /* 024 */
136 #define md_need_resched(tsk) ((tsk)->need_resched)
137
138 /* 025 */
139 #define md_spinlock_t spinlock_t
140 #define MD_SPIN_LOCK_UNLOCKED SPIN_LOCK_UNLOCKED
141
142 #define md_spin_lock spin_lock
143 #define md_spin_unlock spin_unlock
144 #define md_spin_lock_irq spin_lock_irq
145 #define md_spin_unlock_irq spin_unlock_irq
146 #define md_spin_unlock_irqrestore spin_unlock_irqrestore
147 #define md_spin_lock_irqsave spin_lock_irqsave
148
149 /* 026 */
150 typedef wait_queue_head_t md_wait_queue_head_t;
151 #define MD_DECLARE_WAITQUEUE(w,t) DECLARE_WAITQUEUE((w),(t))
152 #define MD_DECLARE_WAIT_QUEUE_HEAD(x) DECLARE_WAIT_QUEUE_HEAD(x)
153 #define md_init_waitqueue_head init_waitqueue_head
154
155 /* END */
156
157 #endif
158
159