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authorThomas Gleixner <tglx@linutronix.de>2009-11-16 12:48:37 -0500
committerThomas Gleixner <tglx@linutronix.de>2009-12-14 17:55:32 -0500
commit6b6b4792f89346e47437682c7ba3438e6681c0f9 (patch)
tree3c3cc94369bc5edaeb5ec8b67c8e172708fdf496 /include/linux
parentef12f10994281e2e44526fa0abf23fdd7d5bd87f (diff)
locking: Separate rwlock api from spinlock api
Move the rwlock smp api defines and functions into a separate header file. Makes the -rt selection simpler and less intrusive. No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/rwlock_api_smp.h277
-rw-r--r--include/linux/spinlock_api_smp.h252
2 files changed, 280 insertions, 249 deletions
diff --git a/include/linux/rwlock_api_smp.h b/include/linux/rwlock_api_smp.h
new file mode 100644
index 000000000000..090f876f828d
--- /dev/null
+++ b/include/linux/rwlock_api_smp.h
@@ -0,0 +1,277 @@
1#ifndef __LINUX_RWLOCK_API_SMP_H
2#define __LINUX_RWLOCK_API_SMP_H
3
4#ifndef __LINUX_SPINLOCK_API_SMP_H
5# error "please don't include this file directly"
6#endif
7
8/*
9 * include/linux/rwlock_api_smp.h
10 *
11 * spinlock API declarations on SMP (and debug)
12 * (implemented in kernel/spinlock.c)
13 *
14 * portions Copyright 2005, Red Hat, Inc., Ingo Molnar
15 * Released under the General Public License (GPL).
16 */
17
18void __lockfunc _read_lock(rwlock_t *lock) __acquires(lock);
19void __lockfunc _write_lock(rwlock_t *lock) __acquires(lock);
20void __lockfunc _read_lock_bh(rwlock_t *lock) __acquires(lock);
21void __lockfunc _write_lock_bh(rwlock_t *lock) __acquires(lock);
22void __lockfunc _read_lock_irq(rwlock_t *lock) __acquires(lock);
23void __lockfunc _write_lock_irq(rwlock_t *lock) __acquires(lock);
24unsigned long __lockfunc _read_lock_irqsave(rwlock_t *lock)
25 __acquires(lock);
26unsigned long __lockfunc _write_lock_irqsave(rwlock_t *lock)
27 __acquires(lock);
28int __lockfunc _read_trylock(rwlock_t *lock);
29int __lockfunc _write_trylock(rwlock_t *lock);
30void __lockfunc _read_unlock(rwlock_t *lock) __releases(lock);
31void __lockfunc _write_unlock(rwlock_t *lock) __releases(lock);
32void __lockfunc _read_unlock_bh(rwlock_t *lock) __releases(lock);
33void __lockfunc _write_unlock_bh(rwlock_t *lock) __releases(lock);
34void __lockfunc _read_unlock_irq(rwlock_t *lock) __releases(lock);
35void __lockfunc _write_unlock_irq(rwlock_t *lock) __releases(lock);
36void __lockfunc _read_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
37 __releases(lock);
38void __lockfunc _write_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
39 __releases(lock);
40
41#ifdef CONFIG_INLINE_READ_LOCK
42#define _read_lock(lock) __read_lock(lock)
43#endif
44
45#ifdef CONFIG_INLINE_WRITE_LOCK
46#define _write_lock(lock) __write_lock(lock)
47#endif
48
49#ifdef CONFIG_INLINE_READ_LOCK_BH
50#define _read_lock_bh(lock) __read_lock_bh(lock)
51#endif
52
53#ifdef CONFIG_INLINE_WRITE_LOCK_BH
54#define _write_lock_bh(lock) __write_lock_bh(lock)
55#endif
56
57#ifdef CONFIG_INLINE_READ_LOCK_IRQ
58#define _read_lock_irq(lock) __read_lock_irq(lock)
59#endif
60
61#ifdef CONFIG_INLINE_WRITE_LOCK_IRQ
62#define _write_lock_irq(lock) __write_lock_irq(lock)
63#endif
64
65#ifdef CONFIG_INLINE_READ_LOCK_IRQSAVE
66#define _read_lock_irqsave(lock) __read_lock_irqsave(lock)
67#endif
68
69#ifdef CONFIG_INLINE_WRITE_LOCK_IRQSAVE
70#define _write_lock_irqsave(lock) __write_lock_irqsave(lock)
71#endif
72
73#ifdef CONFIG_INLINE_READ_TRYLOCK
74#define _read_trylock(lock) __read_trylock(lock)
75#endif
76
77#ifdef CONFIG_INLINE_WRITE_TRYLOCK
78#define _write_trylock(lock) __write_trylock(lock)
79#endif
80
81#ifdef CONFIG_INLINE_READ_UNLOCK
82#define _read_unlock(lock) __read_unlock(lock)
83#endif
84
85#ifdef CONFIG_INLINE_WRITE_UNLOCK
86#define _write_unlock(lock) __write_unlock(lock)
87#endif
88
89#ifdef CONFIG_INLINE_READ_UNLOCK_BH
90#define _read_unlock_bh(lock) __read_unlock_bh(lock)
91#endif
92
93#ifdef CONFIG_INLINE_WRITE_UNLOCK_BH
94#define _write_unlock_bh(lock) __write_unlock_bh(lock)
95#endif
96
97#ifdef CONFIG_INLINE_READ_UNLOCK_IRQ
98#define _read_unlock_irq(lock) __read_unlock_irq(lock)
99#endif
100
101#ifdef CONFIG_INLINE_WRITE_UNLOCK_IRQ
102#define _write_unlock_irq(lock) __write_unlock_irq(lock)
103#endif
104
105#ifdef CONFIG_INLINE_READ_UNLOCK_IRQRESTORE
106#define _read_unlock_irqrestore(lock, flags) __read_unlock_irqrestore(lock, flags)
107#endif
108
109#ifdef CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE
110#define _write_unlock_irqrestore(lock, flags) __write_unlock_irqrestore(lock, flags)
111#endif
112
113static inline int __read_trylock(rwlock_t *lock)
114{
115 preempt_disable();
116 if (_raw_read_trylock(lock)) {
117 rwlock_acquire_read(&lock->dep_map, 0, 1, _RET_IP_);
118 return 1;
119 }
120 preempt_enable();
121 return 0;
122}
123
124static inline int __write_trylock(rwlock_t *lock)
125{
126 preempt_disable();
127 if (_raw_write_trylock(lock)) {
128 rwlock_acquire(&lock->dep_map, 0, 1, _RET_IP_);
129 return 1;
130 }
131 preempt_enable();
132 return 0;
133}
134
135/*
136 * If lockdep is enabled then we use the non-preemption spin-ops
137 * even on CONFIG_PREEMPT, because lockdep assumes that interrupts are
138 * not re-enabled during lock-acquire (which the preempt-spin-ops do):
139 */
140#if !defined(CONFIG_GENERIC_LOCKBREAK) || defined(CONFIG_DEBUG_LOCK_ALLOC)
141
142static inline void __read_lock(rwlock_t *lock)
143{
144 preempt_disable();
145 rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_);
146 LOCK_CONTENDED(lock, _raw_read_trylock, _raw_read_lock);
147}
148
149static inline unsigned long __read_lock_irqsave(rwlock_t *lock)
150{
151 unsigned long flags;
152
153 local_irq_save(flags);
154 preempt_disable();
155 rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_);
156 LOCK_CONTENDED_FLAGS(lock, _raw_read_trylock, _raw_read_lock,
157 _raw_read_lock_flags, &flags);
158 return flags;
159}
160
161static inline void __read_lock_irq(rwlock_t *lock)
162{
163 local_irq_disable();
164 preempt_disable();
165 rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_);
166 LOCK_CONTENDED(lock, _raw_read_trylock, _raw_read_lock);
167}
168
169static inline void __read_lock_bh(rwlock_t *lock)
170{
171 local_bh_disable();
172 preempt_disable();
173 rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_);
174 LOCK_CONTENDED(lock, _raw_read_trylock, _raw_read_lock);
175}
176
177static inline unsigned long __write_lock_irqsave(rwlock_t *lock)
178{
179 unsigned long flags;
180
181 local_irq_save(flags);
182 preempt_disable();
183 rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_);
184 LOCK_CONTENDED_FLAGS(lock, _raw_write_trylock, _raw_write_lock,
185 _raw_write_lock_flags, &flags);
186 return flags;
187}
188
189static inline void __write_lock_irq(rwlock_t *lock)
190{
191 local_irq_disable();
192 preempt_disable();
193 rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_);
194 LOCK_CONTENDED(lock, _raw_write_trylock, _raw_write_lock);
195}
196
197static inline void __write_lock_bh(rwlock_t *lock)
198{
199 local_bh_disable();
200 preempt_disable();
201 rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_);
202 LOCK_CONTENDED(lock, _raw_write_trylock, _raw_write_lock);
203}
204
205static inline void __write_lock(rwlock_t *lock)
206{
207 preempt_disable();
208 rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_);
209 LOCK_CONTENDED(lock, _raw_write_trylock, _raw_write_lock);
210}
211
212#endif /* CONFIG_PREEMPT */
213
214static inline void __write_unlock(rwlock_t *lock)
215{
216 rwlock_release(&lock->dep_map, 1, _RET_IP_);
217 _raw_write_unlock(lock);
218 preempt_enable();
219}
220
221static inline void __read_unlock(rwlock_t *lock)
222{
223 rwlock_release(&lock->dep_map, 1, _RET_IP_);
224 _raw_read_unlock(lock);
225 preempt_enable();
226}
227
228static inline void __read_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
229{
230 rwlock_release(&lock->dep_map, 1, _RET_IP_);
231 _raw_read_unlock(lock);
232 local_irq_restore(flags);
233 preempt_enable();
234}
235
236static inline void __read_unlock_irq(rwlock_t *lock)
237{
238 rwlock_release(&lock->dep_map, 1, _RET_IP_);
239 _raw_read_unlock(lock);
240 local_irq_enable();
241 preempt_enable();
242}
243
244static inline void __read_unlock_bh(rwlock_t *lock)
245{
246 rwlock_release(&lock->dep_map, 1, _RET_IP_);
247 _raw_read_unlock(lock);
248 preempt_enable_no_resched();
249 local_bh_enable_ip((unsigned long)__builtin_return_address(0));
250}
251
252static inline void __write_unlock_irqrestore(rwlock_t *lock,
253 unsigned long flags)
254{
255 rwlock_release(&lock->dep_map, 1, _RET_IP_);
256 _raw_write_unlock(lock);
257 local_irq_restore(flags);
258 preempt_enable();
259}
260
261static inline void __write_unlock_irq(rwlock_t *lock)
262{
263 rwlock_release(&lock->dep_map, 1, _RET_IP_);
264 _raw_write_unlock(lock);
265 local_irq_enable();
266 preempt_enable();
267}
268
269static inline void __write_unlock_bh(rwlock_t *lock)
270{
271 rwlock_release(&lock->dep_map, 1, _RET_IP_);
272 _raw_write_unlock(lock);
273 preempt_enable_no_resched();
274 local_bh_enable_ip((unsigned long)__builtin_return_address(0));
275}
276
277#endif /* __LINUX_RWLOCK_API_SMP_H */
diff --git a/include/linux/spinlock_api_smp.h b/include/linux/spinlock_api_smp.h
index 8264a7f459bc..a2b2c9df91de 100644
--- a/include/linux/spinlock_api_smp.h
+++ b/include/linux/spinlock_api_smp.h
@@ -24,102 +24,41 @@ void __lockfunc _spin_lock_nested(spinlock_t *lock, int subclass)
24 __acquires(lock); 24 __acquires(lock);
25void __lockfunc _spin_lock_nest_lock(spinlock_t *lock, struct lockdep_map *map) 25void __lockfunc _spin_lock_nest_lock(spinlock_t *lock, struct lockdep_map *map)
26 __acquires(lock); 26 __acquires(lock);
27void __lockfunc _read_lock(rwlock_t *lock) __acquires(lock);
28void __lockfunc _write_lock(rwlock_t *lock) __acquires(lock);
29void __lockfunc _spin_lock_bh(spinlock_t *lock) __acquires(lock); 27void __lockfunc _spin_lock_bh(spinlock_t *lock) __acquires(lock);
30void __lockfunc _read_lock_bh(rwlock_t *lock) __acquires(lock);
31void __lockfunc _write_lock_bh(rwlock_t *lock) __acquires(lock);
32void __lockfunc _spin_lock_irq(spinlock_t *lock) __acquires(lock); 28void __lockfunc _spin_lock_irq(spinlock_t *lock) __acquires(lock);
33void __lockfunc _read_lock_irq(rwlock_t *lock) __acquires(lock); 29
34void __lockfunc _write_lock_irq(rwlock_t *lock) __acquires(lock);
35unsigned long __lockfunc _spin_lock_irqsave(spinlock_t *lock) 30unsigned long __lockfunc _spin_lock_irqsave(spinlock_t *lock)
36 __acquires(lock); 31 __acquires(lock);
37unsigned long __lockfunc _spin_lock_irqsave_nested(spinlock_t *lock, int subclass) 32unsigned long __lockfunc _spin_lock_irqsave_nested(spinlock_t *lock, int subclass)
38 __acquires(lock); 33 __acquires(lock);
39unsigned long __lockfunc _read_lock_irqsave(rwlock_t *lock)
40 __acquires(lock);
41unsigned long __lockfunc _write_lock_irqsave(rwlock_t *lock)
42 __acquires(lock);
43int __lockfunc _spin_trylock(spinlock_t *lock); 34int __lockfunc _spin_trylock(spinlock_t *lock);
44int __lockfunc _read_trylock(rwlock_t *lock);
45int __lockfunc _write_trylock(rwlock_t *lock);
46int __lockfunc _spin_trylock_bh(spinlock_t *lock); 35int __lockfunc _spin_trylock_bh(spinlock_t *lock);
47void __lockfunc _spin_unlock(spinlock_t *lock) __releases(lock); 36void __lockfunc _spin_unlock(spinlock_t *lock) __releases(lock);
48void __lockfunc _read_unlock(rwlock_t *lock) __releases(lock);
49void __lockfunc _write_unlock(rwlock_t *lock) __releases(lock);
50void __lockfunc _spin_unlock_bh(spinlock_t *lock) __releases(lock); 37void __lockfunc _spin_unlock_bh(spinlock_t *lock) __releases(lock);
51void __lockfunc _read_unlock_bh(rwlock_t *lock) __releases(lock);
52void __lockfunc _write_unlock_bh(rwlock_t *lock) __releases(lock);
53void __lockfunc _spin_unlock_irq(spinlock_t *lock) __releases(lock); 38void __lockfunc _spin_unlock_irq(spinlock_t *lock) __releases(lock);
54void __lockfunc _read_unlock_irq(rwlock_t *lock) __releases(lock);
55void __lockfunc _write_unlock_irq(rwlock_t *lock) __releases(lock);
56void __lockfunc _spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags) 39void __lockfunc _spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags)
57 __releases(lock); 40 __releases(lock);
58void __lockfunc _read_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
59 __releases(lock);
60void __lockfunc _write_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
61 __releases(lock);
62 41
63#ifdef CONFIG_INLINE_SPIN_LOCK 42#ifdef CONFIG_INLINE_SPIN_LOCK
64#define _spin_lock(lock) __spin_lock(lock) 43#define _spin_lock(lock) __spin_lock(lock)
65#endif 44#endif
66 45
67#ifdef CONFIG_INLINE_READ_LOCK
68#define _read_lock(lock) __read_lock(lock)
69#endif
70
71#ifdef CONFIG_INLINE_WRITE_LOCK
72#define _write_lock(lock) __write_lock(lock)
73#endif
74
75#ifdef CONFIG_INLINE_SPIN_LOCK_BH 46#ifdef CONFIG_INLINE_SPIN_LOCK_BH
76#define _spin_lock_bh(lock) __spin_lock_bh(lock) 47#define _spin_lock_bh(lock) __spin_lock_bh(lock)
77#endif 48#endif
78 49
79#ifdef CONFIG_INLINE_READ_LOCK_BH
80#define _read_lock_bh(lock) __read_lock_bh(lock)
81#endif
82
83#ifdef CONFIG_INLINE_WRITE_LOCK_BH
84#define _write_lock_bh(lock) __write_lock_bh(lock)
85#endif
86
87#ifdef CONFIG_INLINE_SPIN_LOCK_IRQ 50#ifdef CONFIG_INLINE_SPIN_LOCK_IRQ
88#define _spin_lock_irq(lock) __spin_lock_irq(lock) 51#define _spin_lock_irq(lock) __spin_lock_irq(lock)
89#endif 52#endif
90 53
91#ifdef CONFIG_INLINE_READ_LOCK_IRQ
92#define _read_lock_irq(lock) __read_lock_irq(lock)
93#endif
94
95#ifdef CONFIG_INLINE_WRITE_LOCK_IRQ
96#define _write_lock_irq(lock) __write_lock_irq(lock)
97#endif
98
99#ifdef CONFIG_INLINE_SPIN_LOCK_IRQSAVE 54#ifdef CONFIG_INLINE_SPIN_LOCK_IRQSAVE
100#define _spin_lock_irqsave(lock) __spin_lock_irqsave(lock) 55#define _spin_lock_irqsave(lock) __spin_lock_irqsave(lock)
101#endif 56#endif
102 57
103#ifdef CONFIG_INLINE_READ_LOCK_IRQSAVE
104#define _read_lock_irqsave(lock) __read_lock_irqsave(lock)
105#endif
106
107#ifdef CONFIG_INLINE_WRITE_LOCK_IRQSAVE
108#define _write_lock_irqsave(lock) __write_lock_irqsave(lock)
109#endif
110
111#ifdef CONFIG_INLINE_SPIN_TRYLOCK 58#ifdef CONFIG_INLINE_SPIN_TRYLOCK
112#define _spin_trylock(lock) __spin_trylock(lock) 59#define _spin_trylock(lock) __spin_trylock(lock)
113#endif 60#endif
114 61
115#ifdef CONFIG_INLINE_READ_TRYLOCK
116#define _read_trylock(lock) __read_trylock(lock)
117#endif
118
119#ifdef CONFIG_INLINE_WRITE_TRYLOCK
120#define _write_trylock(lock) __write_trylock(lock)
121#endif
122
123#ifdef CONFIG_INLINE_SPIN_TRYLOCK_BH 62#ifdef CONFIG_INLINE_SPIN_TRYLOCK_BH
124#define _spin_trylock_bh(lock) __spin_trylock_bh(lock) 63#define _spin_trylock_bh(lock) __spin_trylock_bh(lock)
125#endif 64#endif
@@ -128,50 +67,18 @@ void __lockfunc _write_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
128#define _spin_unlock(lock) __spin_unlock(lock) 67#define _spin_unlock(lock) __spin_unlock(lock)
129#endif 68#endif
130 69
131#ifdef CONFIG_INLINE_READ_UNLOCK
132#define _read_unlock(lock) __read_unlock(lock)
133#endif
134
135#ifdef CONFIG_INLINE_WRITE_UNLOCK
136#define _write_unlock(lock) __write_unlock(lock)
137#endif
138
139#ifdef CONFIG_INLINE_SPIN_UNLOCK_BH 70#ifdef CONFIG_INLINE_SPIN_UNLOCK_BH
140#define _spin_unlock_bh(lock) __spin_unlock_bh(lock) 71#define _spin_unlock_bh(lock) __spin_unlock_bh(lock)
141#endif 72#endif
142 73
143#ifdef CONFIG_INLINE_READ_UNLOCK_BH
144#define _read_unlock_bh(lock) __read_unlock_bh(lock)
145#endif
146
147#ifdef CONFIG_INLINE_WRITE_UNLOCK_BH
148#define _write_unlock_bh(lock) __write_unlock_bh(lock)
149#endif
150
151#ifdef CONFIG_INLINE_SPIN_UNLOCK_IRQ 74#ifdef CONFIG_INLINE_SPIN_UNLOCK_IRQ
152#define _spin_unlock_irq(lock) __spin_unlock_irq(lock) 75#define _spin_unlock_irq(lock) __spin_unlock_irq(lock)
153#endif 76#endif
154 77
155#ifdef CONFIG_INLINE_READ_UNLOCK_IRQ
156#define _read_unlock_irq(lock) __read_unlock_irq(lock)
157#endif
158
159#ifdef CONFIG_INLINE_WRITE_UNLOCK_IRQ
160#define _write_unlock_irq(lock) __write_unlock_irq(lock)
161#endif
162
163#ifdef CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE 78#ifdef CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE
164#define _spin_unlock_irqrestore(lock, flags) __spin_unlock_irqrestore(lock, flags) 79#define _spin_unlock_irqrestore(lock, flags) __spin_unlock_irqrestore(lock, flags)
165#endif 80#endif
166 81
167#ifdef CONFIG_INLINE_READ_UNLOCK_IRQRESTORE
168#define _read_unlock_irqrestore(lock, flags) __read_unlock_irqrestore(lock, flags)
169#endif
170
171#ifdef CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE
172#define _write_unlock_irqrestore(lock, flags) __write_unlock_irqrestore(lock, flags)
173#endif
174
175static inline int __spin_trylock(spinlock_t *lock) 82static inline int __spin_trylock(spinlock_t *lock)
176{ 83{
177 preempt_disable(); 84 preempt_disable();
@@ -183,28 +90,6 @@ static inline int __spin_trylock(spinlock_t *lock)
183 return 0; 90 return 0;
184} 91}
185 92
186static inline int __read_trylock(rwlock_t *lock)
187{
188 preempt_disable();
189 if (_raw_read_trylock(lock)) {
190 rwlock_acquire_read(&lock->dep_map, 0, 1, _RET_IP_);
191 return 1;
192 }
193 preempt_enable();
194 return 0;
195}
196
197static inline int __write_trylock(rwlock_t *lock)
198{
199 preempt_disable();
200 if (_raw_write_trylock(lock)) {
201 rwlock_acquire(&lock->dep_map, 0, 1, _RET_IP_);
202 return 1;
203 }
204 preempt_enable();
205 return 0;
206}
207
208/* 93/*
209 * If lockdep is enabled then we use the non-preemption spin-ops 94 * If lockdep is enabled then we use the non-preemption spin-ops
210 * even on CONFIG_PREEMPT, because lockdep assumes that interrupts are 95 * even on CONFIG_PREEMPT, because lockdep assumes that interrupts are
@@ -212,13 +97,6 @@ static inline int __write_trylock(rwlock_t *lock)
212 */ 97 */
213#if !defined(CONFIG_GENERIC_LOCKBREAK) || defined(CONFIG_DEBUG_LOCK_ALLOC) 98#if !defined(CONFIG_GENERIC_LOCKBREAK) || defined(CONFIG_DEBUG_LOCK_ALLOC)
214 99
215static inline void __read_lock(rwlock_t *lock)
216{
217 preempt_disable();
218 rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_);
219 LOCK_CONTENDED(lock, _raw_read_trylock, _raw_read_lock);
220}
221
222static inline unsigned long __spin_lock_irqsave(spinlock_t *lock) 100static inline unsigned long __spin_lock_irqsave(spinlock_t *lock)
223{ 101{
224 unsigned long flags; 102 unsigned long flags;
@@ -255,62 +133,6 @@ static inline void __spin_lock_bh(spinlock_t *lock)
255 LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock); 133 LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock);
256} 134}
257 135
258static inline unsigned long __read_lock_irqsave(rwlock_t *lock)
259{
260 unsigned long flags;
261
262 local_irq_save(flags);
263 preempt_disable();
264 rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_);
265 LOCK_CONTENDED_FLAGS(lock, _raw_read_trylock, _raw_read_lock,
266 _raw_read_lock_flags, &flags);
267 return flags;
268}
269
270static inline void __read_lock_irq(rwlock_t *lock)
271{
272 local_irq_disable();
273 preempt_disable();
274 rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_);
275 LOCK_CONTENDED(lock, _raw_read_trylock, _raw_read_lock);
276}
277
278static inline void __read_lock_bh(rwlock_t *lock)
279{
280 local_bh_disable();
281 preempt_disable();
282 rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_);
283 LOCK_CONTENDED(lock, _raw_read_trylock, _raw_read_lock);
284}
285
286static inline unsigned long __write_lock_irqsave(rwlock_t *lock)
287{
288 unsigned long flags;
289
290 local_irq_save(flags);
291 preempt_disable();
292 rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_);
293 LOCK_CONTENDED_FLAGS(lock, _raw_write_trylock, _raw_write_lock,
294 _raw_write_lock_flags, &flags);
295 return flags;
296}
297
298static inline void __write_lock_irq(rwlock_t *lock)
299{
300 local_irq_disable();
301 preempt_disable();
302 rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_);
303 LOCK_CONTENDED(lock, _raw_write_trylock, _raw_write_lock);
304}
305
306static inline void __write_lock_bh(rwlock_t *lock)
307{
308 local_bh_disable();
309 preempt_disable();
310 rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_);
311 LOCK_CONTENDED(lock, _raw_write_trylock, _raw_write_lock);
312}
313
314static inline void __spin_lock(spinlock_t *lock) 136static inline void __spin_lock(spinlock_t *lock)
315{ 137{
316 preempt_disable(); 138 preempt_disable();
@@ -318,13 +140,6 @@ static inline void __spin_lock(spinlock_t *lock)
318 LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock); 140 LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock);
319} 141}
320 142
321static inline void __write_lock(rwlock_t *lock)
322{
323 preempt_disable();
324 rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_);
325 LOCK_CONTENDED(lock, _raw_write_trylock, _raw_write_lock);
326}
327
328#endif /* CONFIG_PREEMPT */ 143#endif /* CONFIG_PREEMPT */
329 144
330static inline void __spin_unlock(spinlock_t *lock) 145static inline void __spin_unlock(spinlock_t *lock)
@@ -334,20 +149,6 @@ static inline void __spin_unlock(spinlock_t *lock)
334 preempt_enable(); 149 preempt_enable();
335} 150}
336 151
337static inline void __write_unlock(rwlock_t *lock)
338{
339 rwlock_release(&lock->dep_map, 1, _RET_IP_);
340 _raw_write_unlock(lock);
341 preempt_enable();
342}
343
344static inline void __read_unlock(rwlock_t *lock)
345{
346 rwlock_release(&lock->dep_map, 1, _RET_IP_);
347 _raw_read_unlock(lock);
348 preempt_enable();
349}
350
351static inline void __spin_unlock_irqrestore(spinlock_t *lock, 152static inline void __spin_unlock_irqrestore(spinlock_t *lock,
352 unsigned long flags) 153 unsigned long flags)
353{ 154{
@@ -373,55 +174,6 @@ static inline void __spin_unlock_bh(spinlock_t *lock)
373 local_bh_enable_ip((unsigned long)__builtin_return_address(0)); 174 local_bh_enable_ip((unsigned long)__builtin_return_address(0));
374} 175}
375 176
376static inline void __read_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
377{
378 rwlock_release(&lock->dep_map, 1, _RET_IP_);
379 _raw_read_unlock(lock);
380 local_irq_restore(flags);
381 preempt_enable();
382}
383
384static inline void __read_unlock_irq(rwlock_t *lock)
385{
386 rwlock_release(&lock->dep_map, 1, _RET_IP_);
387 _raw_read_unlock(lock);
388 local_irq_enable();
389 preempt_enable();
390}
391
392static inline void __read_unlock_bh(rwlock_t *lock)
393{
394 rwlock_release(&lock->dep_map, 1, _RET_IP_);
395 _raw_read_unlock(lock);
396 preempt_enable_no_resched();
397 local_bh_enable_ip((unsigned long)__builtin_return_address(0));
398}
399
400static inline void __write_unlock_irqrestore(rwlock_t *lock,
401 unsigned long flags)
402{
403 rwlock_release(&lock->dep_map, 1, _RET_IP_);
404 _raw_write_unlock(lock);
405 local_irq_restore(flags);
406 preempt_enable();
407}
408
409static inline void __write_unlock_irq(rwlock_t *lock)
410{
411 rwlock_release(&lock->dep_map, 1, _RET_IP_);
412 _raw_write_unlock(lock);
413 local_irq_enable();
414 preempt_enable();
415}
416
417static inline void __write_unlock_bh(rwlock_t *lock)
418{
419 rwlock_release(&lock->dep_map, 1, _RET_IP_);
420 _raw_write_unlock(lock);
421 preempt_enable_no_resched();
422 local_bh_enable_ip((unsigned long)__builtin_return_address(0));
423}
424
425static inline int __spin_trylock_bh(spinlock_t *lock) 177static inline int __spin_trylock_bh(spinlock_t *lock)
426{ 178{
427 local_bh_disable(); 179 local_bh_disable();
@@ -435,4 +187,6 @@ static inline int __spin_trylock_bh(spinlock_t *lock)
435 return 0; 187 return 0;
436} 188}
437 189
190#include <linux/rwlock_api_smp.h>
191
438#endif /* __LINUX_SPINLOCK_API_SMP_H */ 192#endif /* __LINUX_SPINLOCK_API_SMP_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-20 15:14:00 -0500