5 |
* |
* |
6 |
* Copyright (C) 2005-2009 NTT DATA CORPORATION |
* Copyright (C) 2005-2009 NTT DATA CORPORATION |
7 |
* |
* |
8 |
* Version: 1.6.8-pre 2009/05/08 |
* Version: 1.6.8 2009/05/28 |
9 |
* |
* |
10 |
* This file is applicable to both 2.4.30 and 2.6.11 and later. |
* This file is applicable to both 2.4.30 and 2.6.11 and later. |
11 |
* See README.ccs for ChangeLog. |
* See README.ccs for ChangeLog. |
83 |
ret; }) |
ret; }) |
84 |
#endif |
#endif |
85 |
|
|
86 |
/* |
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 0) |
87 |
#ifndef list_for_each |
#define smp_read_barrier_depends smp_rmb |
|
#define list_for_each(pos, head) \ |
|
|
for (pos = (head)->next; prefetch(pos->next), pos != (head); \ |
|
|
pos = pos->next) |
|
88 |
#endif |
#endif |
89 |
|
|
90 |
#ifndef list_for_each_entry |
#ifndef ACCESS_ONCE |
91 |
#define list_for_each_entry(pos, head, member) \ |
#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x)) |
92 |
for (pos = list_entry((head)->next, typeof(*pos), member); \ |
#endif |
93 |
|
|
94 |
|
#ifndef rcu_dereference |
95 |
|
#define rcu_dereference(p) ({ \ |
96 |
|
typeof(p) _________p1 = ACCESS_ONCE(p); \ |
97 |
|
smp_read_barrier_depends(); /* see RCU */ \ |
98 |
|
(_________p1); \ |
99 |
|
}) |
100 |
|
#endif |
101 |
|
|
102 |
|
#ifndef rcu_assign_pointer |
103 |
|
#define rcu_assign_pointer(p, v) \ |
104 |
|
({ \ |
105 |
|
if (!__builtin_constant_p(v) || \ |
106 |
|
((v) != NULL)) \ |
107 |
|
smp_wmb(); /* see RCU */ \ |
108 |
|
(p) = (v); \ |
109 |
|
}) |
110 |
|
#endif |
111 |
|
|
112 |
|
#ifndef list_for_each_rcu |
113 |
|
#define list_for_each_rcu(pos, head) \ |
114 |
|
for (pos = rcu_dereference((head)->next); \ |
115 |
|
prefetch(pos->next), pos != (head); \ |
116 |
|
pos = rcu_dereference(pos->next)) |
117 |
|
#endif |
118 |
|
|
119 |
|
#ifndef list_for_each_entry_rcu |
120 |
|
#define list_for_each_entry_rcu(pos, head, member) \ |
121 |
|
for (pos = list_entry(rcu_dereference((head)->next), typeof(*pos), \ |
122 |
|
member); \ |
123 |
prefetch(pos->member.next), &pos->member != (head); \ |
prefetch(pos->member.next), &pos->member != (head); \ |
124 |
pos = list_entry(pos->member.next, typeof(*pos), member)) |
pos = list_entry(rcu_dereference(pos->member.next), \ |
125 |
|
typeof(*pos), member)) |
126 |
#endif |
#endif |
|
*/ |
|
127 |
|
|
128 |
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0) |
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0) |
129 |
#define s_fs_info u.generic_sbp |
#define s_fs_info u.generic_sbp |