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-rw-r--r--kernel/spinlock.c306
1 files changed, 154 insertions, 152 deletions
diff --git a/kernel/spinlock.c b/kernel/spinlock.c
index 41e042219ff6..be6517fb9c14 100644
--- a/kernel/spinlock.c
+++ b/kernel/spinlock.c
@@ -32,6 +32,8 @@
32 * include/linux/spinlock_api_smp.h 32 * include/linux/spinlock_api_smp.h
33 */ 33 */
34#else 34#else
35#define raw_read_can_lock(l) read_can_lock(l)
36#define raw_write_can_lock(l) write_can_lock(l)
35/* 37/*
36 * We build the __lock_function inlines here. They are too large for 38 * We build the __lock_function inlines here. They are too large for
37 * inlining all over the place, but here is only one user per function 39 * inlining all over the place, but here is only one user per function
@@ -42,49 +44,49 @@
42 * towards that other CPU that it should break the lock ASAP. 44 * towards that other CPU that it should break the lock ASAP.
43 */ 45 */
44#define BUILD_LOCK_OPS(op, locktype) \ 46#define BUILD_LOCK_OPS(op, locktype) \
45void __lockfunc __##op##_lock(locktype##_t *lock) \ 47void __lockfunc __raw_##op##_lock(locktype##_t *lock) \
46{ \ 48{ \
47 for (;;) { \ 49 for (;;) { \
48 preempt_disable(); \ 50 preempt_disable(); \
49 if (likely(_raw_##op##_trylock(lock))) \ 51 if (likely(do_raw_##op##_trylock(lock))) \
50 break; \ 52 break; \
51 preempt_enable(); \ 53 preempt_enable(); \
52 \ 54 \
53 if (!(lock)->break_lock) \ 55 if (!(lock)->break_lock) \
54 (lock)->break_lock = 1; \ 56 (lock)->break_lock = 1; \
55 while (!op##_can_lock(lock) && (lock)->break_lock) \ 57 while (!raw_##op##_can_lock(lock) && (lock)->break_lock)\
56 _raw_##op##_relax(&lock->raw_lock); \ 58 arch_##op##_relax(&lock->raw_lock); \
57 } \ 59 } \
58 (lock)->break_lock = 0; \ 60 (lock)->break_lock = 0; \
59} \ 61} \
60 \ 62 \
61unsigned long __lockfunc __##op##_lock_irqsave(locktype##_t *lock) \ 63unsigned long __lockfunc __raw_##op##_lock_irqsave(locktype##_t *lock) \
62{ \ 64{ \
63 unsigned long flags; \ 65 unsigned long flags; \
64 \ 66 \
65 for (;;) { \ 67 for (;;) { \
66 preempt_disable(); \ 68 preempt_disable(); \
67 local_irq_save(flags); \ 69 local_irq_save(flags); \
68 if (likely(_raw_##op##_trylock(lock))) \ 70 if (likely(do_raw_##op##_trylock(lock))) \
69 break; \ 71 break; \
70 local_irq_restore(flags); \ 72 local_irq_restore(flags); \
71 preempt_enable(); \ 73 preempt_enable(); \
72 \ 74 \
73 if (!(lock)->break_lock) \ 75 if (!(lock)->break_lock) \
74 (lock)->break_lock = 1; \ 76 (lock)->break_lock = 1; \
75 while (!op##_can_lock(lock) && (lock)->break_lock) \ 77 while (!raw_##op##_can_lock(lock) && (lock)->break_lock)\
76 _raw_##op##_relax(&lock->raw_lock); \ 78 arch_##op##_relax(&lock->raw_lock); \
77 } \ 79 } \
78 (lock)->break_lock = 0; \ 80 (lock)->break_lock = 0; \
79 return flags; \ 81 return flags; \
80} \ 82} \
81 \ 83 \
82void __lockfunc __##op##_lock_irq(locktype##_t *lock) \ 84void __lockfunc __raw_##op##_lock_irq(locktype##_t *lock) \
83{ \ 85{ \
84 _##op##_lock_irqsave(lock); \ 86 _raw_##op##_lock_irqsave(lock); \
85} \ 87} \
86 \ 88 \
87void __lockfunc __##op##_lock_bh(locktype##_t *lock) \ 89void __lockfunc __raw_##op##_lock_bh(locktype##_t *lock) \
88{ \ 90{ \
89 unsigned long flags; \ 91 unsigned long flags; \
90 \ 92 \
@@ -93,7 +95,7 @@ void __lockfunc __##op##_lock_bh(locktype##_t *lock) \
93 /* irq-disabling. We use the generic preemption-aware */ \ 95 /* irq-disabling. We use the generic preemption-aware */ \
94 /* function: */ \ 96 /* function: */ \
95 /**/ \ 97 /**/ \
96 flags = _##op##_lock_irqsave(lock); \ 98 flags = _raw_##op##_lock_irqsave(lock); \
97 local_bh_disable(); \ 99 local_bh_disable(); \
98 local_irq_restore(flags); \ 100 local_irq_restore(flags); \
99} \ 101} \
@@ -107,269 +109,269 @@ void __lockfunc __##op##_lock_bh(locktype##_t *lock) \
107 * __[spin|read|write]_lock_irqsave() 109 * __[spin|read|write]_lock_irqsave()
108 * __[spin|read|write]_lock_bh() 110 * __[spin|read|write]_lock_bh()
109 */ 111 */
110BUILD_LOCK_OPS(spin, spinlock); 112BUILD_LOCK_OPS(spin, raw_spinlock);
111BUILD_LOCK_OPS(read, rwlock); 113BUILD_LOCK_OPS(read, rwlock);
112BUILD_LOCK_OPS(write, rwlock); 114BUILD_LOCK_OPS(write, rwlock);
113 115
114#endif 116#endif
115 117
116#ifdef CONFIG_DEBUG_LOCK_ALLOC 118#ifndef CONFIG_INLINE_SPIN_TRYLOCK
117 119int __lockfunc _raw_spin_trylock(raw_spinlock_t *lock)
118void __lockfunc _spin_lock_nested(spinlock_t *lock, int subclass)
119{ 120{
120 preempt_disable(); 121 return __raw_spin_trylock(lock);
121 spin_acquire(&lock->dep_map, subclass, 0, _RET_IP_);
122 LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock);
123} 122}
124EXPORT_SYMBOL(_spin_lock_nested); 123EXPORT_SYMBOL(_raw_spin_trylock);
124#endif
125 125
126unsigned long __lockfunc _spin_lock_irqsave_nested(spinlock_t *lock, 126#ifndef CONFIG_INLINE_SPIN_TRYLOCK_BH
127 int subclass) 127int __lockfunc _raw_spin_trylock_bh(raw_spinlock_t *lock)
128{ 128{
129 unsigned long flags; 129 return __raw_spin_trylock_bh(lock);
130
131 local_irq_save(flags);
132 preempt_disable();
133 spin_acquire(&lock->dep_map, subclass, 0, _RET_IP_);
134 LOCK_CONTENDED_FLAGS(lock, _raw_spin_trylock, _raw_spin_lock,
135 _raw_spin_lock_flags, &flags);
136 return flags;
137} 130}
138EXPORT_SYMBOL(_spin_lock_irqsave_nested); 131EXPORT_SYMBOL(_raw_spin_trylock_bh);
132#endif
139 133
140void __lockfunc _spin_lock_nest_lock(spinlock_t *lock, 134#ifndef CONFIG_INLINE_SPIN_LOCK
141 struct lockdep_map *nest_lock) 135void __lockfunc _raw_spin_lock(raw_spinlock_t *lock)
142{ 136{
143 preempt_disable(); 137 __raw_spin_lock(lock);
144 spin_acquire_nest(&lock->dep_map, 0, 0, nest_lock, _RET_IP_);
145 LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock);
146} 138}
147EXPORT_SYMBOL(_spin_lock_nest_lock); 139EXPORT_SYMBOL(_raw_spin_lock);
148
149#endif 140#endif
150 141
151#ifndef CONFIG_INLINE_SPIN_TRYLOCK 142#ifndef CONFIG_INLINE_SPIN_LOCK_IRQSAVE
152int __lockfunc _spin_trylock(spinlock_t *lock) 143unsigned long __lockfunc _raw_spin_lock_irqsave(raw_spinlock_t *lock)
153{ 144{
154 return __spin_trylock(lock); 145 return __raw_spin_lock_irqsave(lock);
155} 146}
156EXPORT_SYMBOL(_spin_trylock); 147EXPORT_SYMBOL(_raw_spin_lock_irqsave);
157#endif 148#endif
158 149
159#ifndef CONFIG_INLINE_READ_TRYLOCK 150#ifndef CONFIG_INLINE_SPIN_LOCK_IRQ
160int __lockfunc _read_trylock(rwlock_t *lock) 151void __lockfunc _raw_spin_lock_irq(raw_spinlock_t *lock)
161{ 152{
162 return __read_trylock(lock); 153 __raw_spin_lock_irq(lock);
163} 154}
164EXPORT_SYMBOL(_read_trylock); 155EXPORT_SYMBOL(_raw_spin_lock_irq);
165#endif 156#endif
166 157
167#ifndef CONFIG_INLINE_WRITE_TRYLOCK 158#ifndef CONFIG_INLINE_SPIN_LOCK_BH
168int __lockfunc _write_trylock(rwlock_t *lock) 159void __lockfunc _raw_spin_lock_bh(raw_spinlock_t *lock)
169{ 160{
170 return __write_trylock(lock); 161 __raw_spin_lock_bh(lock);
171} 162}
172EXPORT_SYMBOL(_write_trylock); 163EXPORT_SYMBOL(_raw_spin_lock_bh);
173#endif 164#endif
174 165
175#ifndef CONFIG_INLINE_READ_LOCK 166#ifndef CONFIG_INLINE_SPIN_UNLOCK
176void __lockfunc _read_lock(rwlock_t *lock) 167void __lockfunc _raw_spin_unlock(raw_spinlock_t *lock)
177{ 168{
178 __read_lock(lock); 169 __raw_spin_unlock(lock);
179} 170}
180EXPORT_SYMBOL(_read_lock); 171EXPORT_SYMBOL(_raw_spin_unlock);
181#endif 172#endif
182 173
183#ifndef CONFIG_INLINE_SPIN_LOCK_IRQSAVE 174#ifndef CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE
184unsigned long __lockfunc _spin_lock_irqsave(spinlock_t *lock) 175void __lockfunc _raw_spin_unlock_irqrestore(raw_spinlock_t *lock, unsigned long flags)
185{ 176{
186 return __spin_lock_irqsave(lock); 177 __raw_spin_unlock_irqrestore(lock, flags);
187} 178}
188EXPORT_SYMBOL(_spin_lock_irqsave); 179EXPORT_SYMBOL(_raw_spin_unlock_irqrestore);
189#endif 180#endif
190 181
191#ifndef CONFIG_INLINE_SPIN_LOCK_IRQ 182#ifndef CONFIG_INLINE_SPIN_UNLOCK_IRQ
192void __lockfunc _spin_lock_irq(spinlock_t *lock) 183void __lockfunc _raw_spin_unlock_irq(raw_spinlock_t *lock)
193{ 184{
194 __spin_lock_irq(lock); 185 __raw_spin_unlock_irq(lock);
195} 186}
196EXPORT_SYMBOL(_spin_lock_irq); 187EXPORT_SYMBOL(_raw_spin_unlock_irq);
197#endif 188#endif
198 189
199#ifndef CONFIG_INLINE_SPIN_LOCK_BH 190#ifndef CONFIG_INLINE_SPIN_UNLOCK_BH
200void __lockfunc _spin_lock_bh(spinlock_t *lock) 191void __lockfunc _raw_spin_unlock_bh(raw_spinlock_t *lock)
201{ 192{
202 __spin_lock_bh(lock); 193 __raw_spin_unlock_bh(lock);
203} 194}
204EXPORT_SYMBOL(_spin_lock_bh); 195EXPORT_SYMBOL(_raw_spin_unlock_bh);
205#endif 196#endif
206 197
207#ifndef CONFIG_INLINE_READ_LOCK_IRQSAVE 198#ifndef CONFIG_INLINE_READ_TRYLOCK
208unsigned long __lockfunc _read_lock_irqsave(rwlock_t *lock) 199int __lockfunc _raw_read_trylock(rwlock_t *lock)
209{ 200{
210 return __read_lock_irqsave(lock); 201 return __raw_read_trylock(lock);
211} 202}
212EXPORT_SYMBOL(_read_lock_irqsave); 203EXPORT_SYMBOL(_raw_read_trylock);
213#endif 204#endif
214 205
215#ifndef CONFIG_INLINE_READ_LOCK_IRQ 206#ifndef CONFIG_INLINE_READ_LOCK
216void __lockfunc _read_lock_irq(rwlock_t *lock) 207void __lockfunc _raw_read_lock(rwlock_t *lock)
217{ 208{
218 __read_lock_irq(lock); 209 __raw_read_lock(lock);
219} 210}
220EXPORT_SYMBOL(_read_lock_irq); 211EXPORT_SYMBOL(_raw_read_lock);
221#endif 212#endif
222 213
223#ifndef CONFIG_INLINE_READ_LOCK_BH 214#ifndef CONFIG_INLINE_READ_LOCK_IRQSAVE
224void __lockfunc _read_lock_bh(rwlock_t *lock) 215unsigned long __lockfunc _raw_read_lock_irqsave(rwlock_t *lock)
225{ 216{
226 __read_lock_bh(lock); 217 return __raw_read_lock_irqsave(lock);
227} 218}
228EXPORT_SYMBOL(_read_lock_bh); 219EXPORT_SYMBOL(_raw_read_lock_irqsave);
229#endif 220#endif
230 221
231#ifndef CONFIG_INLINE_WRITE_LOCK_IRQSAVE 222#ifndef CONFIG_INLINE_READ_LOCK_IRQ
232unsigned long __lockfunc _write_lock_irqsave(rwlock_t *lock) 223void __lockfunc _raw_read_lock_irq(rwlock_t *lock)
233{ 224{
234 return __write_lock_irqsave(lock); 225 __raw_read_lock_irq(lock);
235} 226}
236EXPORT_SYMBOL(_write_lock_irqsave); 227EXPORT_SYMBOL(_raw_read_lock_irq);
237#endif 228#endif
238 229
239#ifndef CONFIG_INLINE_WRITE_LOCK_IRQ 230#ifndef CONFIG_INLINE_READ_LOCK_BH
240void __lockfunc _write_lock_irq(rwlock_t *lock) 231void __lockfunc _raw_read_lock_bh(rwlock_t *lock)
241{ 232{
242 __write_lock_irq(lock); 233 __raw_read_lock_bh(lock);
243} 234}
244EXPORT_SYMBOL(_write_lock_irq); 235EXPORT_SYMBOL(_raw_read_lock_bh);
245#endif 236#endif
246 237
247#ifndef CONFIG_INLINE_WRITE_LOCK_BH 238#ifndef CONFIG_INLINE_READ_UNLOCK
248void __lockfunc _write_lock_bh(rwlock_t *lock) 239void __lockfunc _raw_read_unlock(rwlock_t *lock)
249{ 240{
250 __write_lock_bh(lock); 241 __raw_read_unlock(lock);
251} 242}
252EXPORT_SYMBOL(_write_lock_bh); 243EXPORT_SYMBOL(_raw_read_unlock);
253#endif 244#endif
254 245
255#ifndef CONFIG_INLINE_SPIN_LOCK 246#ifndef CONFIG_INLINE_READ_UNLOCK_IRQRESTORE
256void __lockfunc _spin_lock(spinlock_t *lock) 247void __lockfunc _raw_read_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
257{ 248{
258 __spin_lock(lock); 249 __raw_read_unlock_irqrestore(lock, flags);
259} 250}
260EXPORT_SYMBOL(_spin_lock); 251EXPORT_SYMBOL(_raw_read_unlock_irqrestore);
261#endif 252#endif
262 253
263#ifndef CONFIG_INLINE_WRITE_LOCK 254#ifndef CONFIG_INLINE_READ_UNLOCK_IRQ
264void __lockfunc _write_lock(rwlock_t *lock) 255void __lockfunc _raw_read_unlock_irq(rwlock_t *lock)
265{ 256{
266 __write_lock(lock); 257 __raw_read_unlock_irq(lock);
267} 258}
268EXPORT_SYMBOL(_write_lock); 259EXPORT_SYMBOL(_raw_read_unlock_irq);
269#endif 260#endif
270 261
271#ifndef CONFIG_INLINE_SPIN_UNLOCK 262#ifndef CONFIG_INLINE_READ_UNLOCK_BH
272void __lockfunc _spin_unlock(spinlock_t *lock) 263void __lockfunc _raw_read_unlock_bh(rwlock_t *lock)
273{ 264{
274 __spin_unlock(lock); 265 __raw_read_unlock_bh(lock);
275} 266}
276EXPORT_SYMBOL(_spin_unlock); 267EXPORT_SYMBOL(_raw_read_unlock_bh);
277#endif 268#endif
278 269
279#ifndef CONFIG_INLINE_WRITE_UNLOCK 270#ifndef CONFIG_INLINE_WRITE_TRYLOCK
280void __lockfunc _write_unlock(rwlock_t *lock) 271int __lockfunc _raw_write_trylock(rwlock_t *lock)
281{ 272{
282 __write_unlock(lock); 273 return __raw_write_trylock(lock);
283} 274}
284EXPORT_SYMBOL(_write_unlock); 275EXPORT_SYMBOL(_raw_write_trylock);
285#endif 276#endif
286 277
287#ifndef CONFIG_INLINE_READ_UNLOCK 278#ifndef CONFIG_INLINE_WRITE_LOCK
288void __lockfunc _read_unlock(rwlock_t *lock) 279void __lockfunc _raw_write_lock(rwlock_t *lock)
289{ 280{
290 __read_unlock(lock); 281 __raw_write_lock(lock);
291} 282}
292EXPORT_SYMBOL(_read_unlock); 283EXPORT_SYMBOL(_raw_write_lock);
293#endif 284#endif
294 285
295#ifndef CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE 286#ifndef CONFIG_INLINE_WRITE_LOCK_IRQSAVE
296void __lockfunc _spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags) 287unsigned long __lockfunc _raw_write_lock_irqsave(rwlock_t *lock)
297{ 288{
298 __spin_unlock_irqrestore(lock, flags); 289 return __raw_write_lock_irqsave(lock);
299} 290}
300EXPORT_SYMBOL(_spin_unlock_irqrestore); 291EXPORT_SYMBOL(_raw_write_lock_irqsave);
301#endif 292#endif
302 293
303#ifndef CONFIG_INLINE_SPIN_UNLOCK_IRQ 294#ifndef CONFIG_INLINE_WRITE_LOCK_IRQ
304void __lockfunc _spin_unlock_irq(spinlock_t *lock) 295void __lockfunc _raw_write_lock_irq(rwlock_t *lock)
305{ 296{
306 __spin_unlock_irq(lock); 297 __raw_write_lock_irq(lock);
307} 298}
308EXPORT_SYMBOL(_spin_unlock_irq); 299EXPORT_SYMBOL(_raw_write_lock_irq);
309#endif 300#endif
310 301
311#ifndef CONFIG_INLINE_SPIN_UNLOCK_BH 302#ifndef CONFIG_INLINE_WRITE_LOCK_BH
312void __lockfunc _spin_unlock_bh(spinlock_t *lock) 303void __lockfunc _raw_write_lock_bh(rwlock_t *lock)
313{ 304{
314 __spin_unlock_bh(lock); 305 __raw_write_lock_bh(lock);
315} 306}
316EXPORT_SYMBOL(_spin_unlock_bh); 307EXPORT_SYMBOL(_raw_write_lock_bh);
317#endif 308#endif
318 309
319#ifndef CONFIG_INLINE_READ_UNLOCK_IRQRESTORE 310#ifndef CONFIG_INLINE_WRITE_UNLOCK
320void __lockfunc _read_unlock_irqrestore(rwlock_t *lock, unsigned long flags) 311void __lockfunc _raw_write_unlock(rwlock_t *lock)
321{ 312{
322 __read_unlock_irqrestore(lock, flags); 313 __raw_write_unlock(lock);
323} 314}
324EXPORT_SYMBOL(_read_unlock_irqrestore); 315EXPORT_SYMBOL(_raw_write_unlock);
325#endif 316#endif
326 317
327#ifndef CONFIG_INLINE_READ_UNLOCK_IRQ 318#ifndef CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE
328void __lockfunc _read_unlock_irq(rwlock_t *lock) 319void __lockfunc _raw_write_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
329{ 320{
330 __read_unlock_irq(lock); 321 __raw_write_unlock_irqrestore(lock, flags);
331} 322}
332EXPORT_SYMBOL(_read_unlock_irq); 323EXPORT_SYMBOL(_raw_write_unlock_irqrestore);
333#endif 324#endif
334 325
335#ifndef CONFIG_INLINE_READ_UNLOCK_BH 326#ifndef CONFIG_INLINE_WRITE_UNLOCK_IRQ
336void __lockfunc _read_unlock_bh(rwlock_t *lock) 327void __lockfunc _raw_write_unlock_irq(rwlock_t *lock)
337{ 328{
338 __read_unlock_bh(lock); 329 __raw_write_unlock_irq(lock);
339} 330}
340EXPORT_SYMBOL(_read_unlock_bh); 331EXPORT_SYMBOL(_raw_write_unlock_irq);
341#endif 332#endif
342 333
343#ifndef CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE 334#ifndef CONFIG_INLINE_WRITE_UNLOCK_BH
344void __lockfunc _write_unlock_irqrestore(rwlock_t *lock, unsigned long flags) 335void __lockfunc _raw_write_unlock_bh(rwlock_t *lock)
345{ 336{
346 __write_unlock_irqrestore(lock, flags); 337 __raw_write_unlock_bh(lock);
347} 338}
348EXPORT_SYMBOL(_write_unlock_irqrestore); 339EXPORT_SYMBOL(_raw_write_unlock_bh);
349#endif 340#endif
350 341
351#ifndef CONFIG_INLINE_WRITE_UNLOCK_IRQ 342#ifdef CONFIG_DEBUG_LOCK_ALLOC
352void __lockfunc _write_unlock_irq(rwlock_t *lock) 343
344void __lockfunc _raw_spin_lock_nested(raw_spinlock_t *lock, int subclass)
353{ 345{
354 __write_unlock_irq(lock); 346 preempt_disable();
347 spin_acquire(&lock->dep_map, subclass, 0, _RET_IP_);
348 LOCK_CONTENDED(lock, do_raw_spin_trylock, do_raw_spin_lock);
355} 349}
356EXPORT_SYMBOL(_write_unlock_irq); 350EXPORT_SYMBOL(_raw_spin_lock_nested);
357#endif
358 351
359#ifndef CONFIG_INLINE_WRITE_UNLOCK_BH 352unsigned long __lockfunc _raw_spin_lock_irqsave_nested(raw_spinlock_t *lock,
360void __lockfunc _write_unlock_bh(rwlock_t *lock) 353 int subclass)
361{ 354{
362 __write_unlock_bh(lock); 355 unsigned long flags;
356
357 local_irq_save(flags);
358 preempt_disable();
359 spin_acquire(&lock->dep_map, subclass, 0, _RET_IP_);
360 LOCK_CONTENDED_FLAGS(lock, do_raw_spin_trylock, do_raw_spin_lock,
361 do_raw_spin_lock_flags, &flags);
362 return flags;
363} 363}
364EXPORT_SYMBOL(_write_unlock_bh); 364EXPORT_SYMBOL(_raw_spin_lock_irqsave_nested);
365#endif
366 365
367#ifndef CONFIG_INLINE_SPIN_TRYLOCK_BH 366void __lockfunc _raw_spin_lock_nest_lock(raw_spinlock_t *lock,
368int __lockfunc _spin_trylock_bh(spinlock_t *lock) 367 struct lockdep_map *nest_lock)
369{ 368{
370 return __spin_trylock_bh(lock); 369 preempt_disable();
370 spin_acquire_nest(&lock->dep_map, 0, 0, nest_lock, _RET_IP_);
371 LOCK_CONTENDED(lock, do_raw_spin_trylock, do_raw_spin_lock);
371} 372}
372EXPORT_SYMBOL(_spin_trylock_bh); 373EXPORT_SYMBOL(_raw_spin_lock_nest_lock);
374
373#endif 375#endif
374 376
375notrace int in_lock_functions(unsigned long addr) 377notrace int in_lock_functions(unsigned long addr)