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1 | /*****************************************************************************\ |
2 | * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC. | |
3 | * Copyright (C) 2007 The Regents of the University of California. | |
4 | * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER). | |
5 | * Written by Brian Behlendorf <behlendorf1@llnl.gov>. | |
715f6251 | 6 | * UCRL-CODE-235197 |
7 | * | |
716154c5 BB |
8 | * This file is part of the SPL, Solaris Porting Layer. |
9 | * For details, see <http://github.com/behlendorf/spl/>. | |
10 | * | |
11 | * The SPL is free software; you can redistribute it and/or modify it | |
12 | * under the terms of the GNU General Public License as published by the | |
13 | * Free Software Foundation; either version 2 of the License, or (at your | |
14 | * option) any later version. | |
715f6251 | 15 | * |
716154c5 | 16 | * The SPL is distributed in the hope that it will be useful, but WITHOUT |
715f6251 | 17 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
18 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
19 | * for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License along | |
716154c5 BB |
22 | * with the SPL. If not, see <http://www.gnu.org/licenses/>. |
23 | \*****************************************************************************/ | |
715f6251 | 24 | |
7c50328b | 25 | #ifndef _SPLAT_INTERNAL_H |
26 | #define _SPLAT_INTERNAL_H | |
27 | ||
46c685d0 | 28 | #include "spl-device.h" |
55abb092 | 29 | #include "spl-debug.h" |
596e65b4 | 30 | #include "splat-ctl.h" |
7c50328b | 31 | |
32 | #define SPLAT_SUBSYSTEM_INIT(type) \ | |
8d0f1ee9 | 33 | ({ splat_subsystem_t *_sub_; \ |
7c50328b | 34 | \ |
8d0f1ee9 | 35 | _sub_ = (splat_subsystem_t *)splat_##type##_init(); \ |
7c50328b | 36 | if (_sub_ == NULL) { \ |
8d0f1ee9 | 37 | printk(KERN_ERR "splat: Error initializing: " #type "\n"); \ |
7c50328b | 38 | } else { \ |
8d0f1ee9 | 39 | spin_lock(&splat_module_lock); \ |
40 | list_add_tail(&(_sub_->subsystem_list), \ | |
7c50328b | 41 | &splat_module_list); \ |
8d0f1ee9 | 42 | spin_unlock(&splat_module_lock); \ |
7c50328b | 43 | } \ |
44 | }) | |
45 | ||
46 | #define SPLAT_SUBSYSTEM_FINI(type) \ | |
8d0f1ee9 | 47 | ({ splat_subsystem_t *_sub_, *_tmp_; \ |
7c50328b | 48 | int _id_, _flag_ = 0; \ |
49 | \ | |
8d0f1ee9 | 50 | _id_ = splat_##type##_id(); \ |
51 | spin_lock(&splat_module_lock); \ | |
7c50328b | 52 | list_for_each_entry_safe(_sub_, _tmp_, &splat_module_list, \ |
53 | subsystem_list) { \ | |
54 | if (_sub_->desc.id == _id_) { \ | |
55 | list_del_init(&(_sub_->subsystem_list)); \ | |
8d0f1ee9 | 56 | spin_unlock(&splat_module_lock); \ |
57 | splat_##type##_fini(_sub_); \ | |
7c50328b | 58 | spin_lock(&splat_module_lock); \ |
59 | _flag_ = 1; \ | |
60 | } \ | |
61 | } \ | |
8d0f1ee9 | 62 | spin_unlock(&splat_module_lock); \ |
7c50328b | 63 | \ |
64 | if (!_flag_) \ | |
8d0f1ee9 | 65 | printk(KERN_ERR "splat: Error finalizing: " #type "\n"); \ |
7c50328b | 66 | }) |
67 | ||
68 | #define SPLAT_TEST_INIT(sub, n, d, tid, func) \ | |
8d0f1ee9 | 69 | ({ splat_test_t *_test_; \ |
7c50328b | 70 | \ |
8d0f1ee9 | 71 | _test_ = (splat_test_t *)kmalloc(sizeof(*_test_), GFP_KERNEL); \ |
7c50328b | 72 | if (_test_ == NULL) { \ |
8d0f1ee9 | 73 | printk(KERN_ERR "splat: Error initializing: " n "/" #tid" \n");\ |
7c50328b | 74 | } else { \ |
75 | memset(_test_, 0, sizeof(*_test_)); \ | |
ac569b72 | 76 | strncpy(_test_->desc.name, n, SPLAT_NAME_SIZE-1); \ |
77 | strncpy(_test_->desc.desc, d, SPLAT_DESC_SIZE-1); \ | |
7c50328b | 78 | _test_->desc.id = tid; \ |
79 | _test_->test = func; \ | |
80 | INIT_LIST_HEAD(&(_test_->test_list)); \ | |
81 | spin_lock(&((sub)->test_lock)); \ | |
82 | list_add_tail(&(_test_->test_list),&((sub)->test_list));\ | |
83 | spin_unlock(&((sub)->test_lock)); \ | |
84 | } \ | |
85 | }) | |
86 | ||
87 | #define SPLAT_TEST_FINI(sub, tid) \ | |
8d0f1ee9 | 88 | ({ splat_test_t *_test_, *_tmp_; \ |
7c50328b | 89 | int _flag_ = 0; \ |
90 | \ | |
91 | spin_lock(&((sub)->test_lock)); \ | |
92 | list_for_each_entry_safe(_test_, _tmp_, \ | |
93 | &((sub)->test_list), test_list) { \ | |
94 | if (_test_->desc.id == tid) { \ | |
95 | list_del_init(&(_test_->test_list)); \ | |
96 | _flag_ = 1; \ | |
97 | } \ | |
98 | } \ | |
99 | spin_unlock(&((sub)->test_lock)); \ | |
100 | \ | |
101 | if (!_flag_) \ | |
8d0f1ee9 | 102 | printk(KERN_ERR "splat: Error finalizing: " #tid "\n"); \ |
7c50328b | 103 | }) |
104 | ||
105 | typedef int (*splat_test_func_t)(struct file *, void *); | |
106 | ||
107 | typedef struct splat_test { | |
108 | struct list_head test_list; | |
109 | splat_user_t desc; | |
110 | splat_test_func_t test; | |
111 | } splat_test_t; | |
112 | ||
113 | typedef struct splat_subsystem { | |
114 | struct list_head subsystem_list;/* List had to chain entries */ | |
115 | splat_user_t desc; | |
116 | spinlock_t test_lock; | |
117 | struct list_head test_list; | |
118 | } splat_subsystem_t; | |
119 | ||
120 | #define SPLAT_INFO_BUFFER_SIZE 65536 | |
121 | #define SPLAT_INFO_BUFFER_REDZONE 256 | |
122 | ||
123 | typedef struct splat_info { | |
0e149d42 | 124 | struct mutex info_lock; |
7c50328b | 125 | int info_size; |
126 | char *info_buffer; | |
127 | char *info_head; /* Internal kernel use only */ | |
128 | } splat_info_t; | |
129 | ||
130 | #define sym2str(sym) (char *)(#sym) | |
131 | ||
132 | #define splat_print(file, format, args...) \ | |
d6a26c6a | 133 | ({ splat_info_t *_info_ = (splat_info_t *)file->private_data; \ |
7c50328b | 134 | int _rc_; \ |
135 | \ | |
136 | ASSERT(_info_); \ | |
137 | ASSERT(_info_->info_buffer); \ | |
138 | \ | |
0e149d42 | 139 | mutex_lock(&_info_->info_lock); \ |
7c50328b | 140 | \ |
141 | /* Don't allow the kernel to start a write in the red zone */ \ | |
142 | if ((int)(_info_->info_head - _info_->info_buffer) > \ | |
143 | (SPLAT_INFO_BUFFER_SIZE - SPLAT_INFO_BUFFER_REDZONE)) { \ | |
144 | _rc_ = -EOVERFLOW; \ | |
145 | } else { \ | |
146 | _rc_ = sprintf(_info_->info_head, format, args); \ | |
147 | if (_rc_ >= 0) \ | |
148 | _info_->info_head += _rc_; \ | |
149 | } \ | |
150 | \ | |
0e149d42 | 151 | mutex_unlock(&_info_->info_lock); \ |
7c50328b | 152 | _rc_; \ |
153 | }) | |
154 | ||
d6a26c6a | 155 | #define splat_vprint(file, test, format, args...) \ |
7c50328b | 156 | splat_print(file, "%*s: " format, SPLAT_NAME_SIZE, test, args) |
157 | ||
e811949a BB |
158 | #define splat_locked_test(lock, test) \ |
159 | ({ \ | |
160 | int _rc_; \ | |
161 | spin_lock(lock); \ | |
162 | _rc_ = (test) ? 1 : 0; \ | |
163 | spin_unlock(lock); \ | |
164 | _rc_; \ | |
165 | }) | |
166 | ||
d702c04f BB |
167 | splat_subsystem_t *splat_condvar_init(void); |
168 | splat_subsystem_t *splat_kmem_init(void); | |
169 | splat_subsystem_t *splat_mutex_init(void); | |
170 | splat_subsystem_t *splat_krng_init(void); | |
171 | splat_subsystem_t *splat_rwlock_init(void); | |
172 | splat_subsystem_t *splat_taskq_init(void); | |
173 | splat_subsystem_t *splat_thread_init(void); | |
174 | splat_subsystem_t *splat_time_init(void); | |
175 | splat_subsystem_t *splat_vnode_init(void); | |
176 | splat_subsystem_t *splat_kobj_init(void); | |
177 | splat_subsystem_t *splat_atomic_init(void); | |
178 | splat_subsystem_t *splat_list_init(void); | |
b871b8cd | 179 | splat_subsystem_t *splat_generic_init(void); |
ec7d53e9 | 180 | splat_subsystem_t *splat_cred_init(void); |
19c1eb82 | 181 | splat_subsystem_t *splat_zlib_init(void); |
bf0c60c0 | 182 | splat_subsystem_t *splat_linux_init(void); |
7c50328b | 183 | |
184 | void splat_condvar_fini(splat_subsystem_t *); | |
185 | void splat_kmem_fini(splat_subsystem_t *); | |
186 | void splat_mutex_fini(splat_subsystem_t *); | |
187 | void splat_krng_fini(splat_subsystem_t *); | |
188 | void splat_rwlock_fini(splat_subsystem_t *); | |
189 | void splat_taskq_fini(splat_subsystem_t *); | |
190 | void splat_thread_fini(splat_subsystem_t *); | |
191 | void splat_time_fini(splat_subsystem_t *); | |
4b171585 | 192 | void splat_vnode_fini(splat_subsystem_t *); |
9490c148 | 193 | void splat_kobj_fini(splat_subsystem_t *); |
9f4c835a | 194 | void splat_atomic_fini(splat_subsystem_t *); |
d702c04f | 195 | void splat_list_fini(splat_subsystem_t *); |
b871b8cd | 196 | void splat_generic_fini(splat_subsystem_t *); |
ec7d53e9 | 197 | void splat_cred_fini(splat_subsystem_t *); |
19c1eb82 | 198 | void splat_zlib_fini(splat_subsystem_t *); |
bf0c60c0 | 199 | void splat_linux_fini(splat_subsystem_t *); |
7c50328b | 200 | |
201 | int splat_condvar_id(void); | |
202 | int splat_kmem_id(void); | |
203 | int splat_mutex_id(void); | |
204 | int splat_krng_id(void); | |
205 | int splat_rwlock_id(void); | |
206 | int splat_taskq_id(void); | |
207 | int splat_thread_id(void); | |
208 | int splat_time_id(void); | |
4b171585 | 209 | int splat_vnode_id(void); |
9490c148 | 210 | int splat_kobj_id(void); |
9f4c835a | 211 | int splat_atomic_id(void); |
d702c04f | 212 | int splat_list_id(void); |
b871b8cd | 213 | int splat_generic_id(void); |
ec7d53e9 | 214 | int splat_cred_id(void); |
19c1eb82 | 215 | int splat_zlib_id(void); |
bf0c60c0 | 216 | int splat_linux_id(void); |
7c50328b | 217 | |
218 | #endif /* _SPLAT_INTERNAL_H */ |