| /Linux-v4.19/include/linux/ |
| D | spinlock_api_up.h | 19 #define assert_raw_spin_locked(lock) do { (void)(lock); } while (0) argument
27 #define ___LOCK(lock) \ argument
30 #define __LOCK(lock) \ argument
33 #define __LOCK_BH(lock) \ argument
36 #define __LOCK_IRQ(lock) \ argument
39 #define __LOCK_IRQSAVE(lock, flags) \ argument
42 #define ___UNLOCK(lock) \ argument
45 #define __UNLOCK(lock) \ argument
48 #define __UNLOCK_BH(lock) \ argument
52 #define __UNLOCK_IRQ(lock) \ argument
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| D | rwlock_api_smp.h | 44 #define _raw_read_lock(lock) __raw_read_lock(lock) argument
48 #define _raw_write_lock(lock) __raw_write_lock(lock) argument
52 #define _raw_read_lock_bh(lock) __raw_read_lock_bh(lock) argument
56 #define _raw_write_lock_bh(lock) __raw_write_lock_bh(lock) argument
60 #define _raw_read_lock_irq(lock) __raw_read_lock_irq(lock) argument
64 #define _raw_write_lock_irq(lock) __raw_write_lock_irq(lock) argument
68 #define _raw_read_lock_irqsave(lock) __raw_read_lock_irqsave(lock) argument
72 #define _raw_write_lock_irqsave(lock) __raw_write_lock_irqsave(lock) argument
76 #define _raw_read_trylock(lock) __raw_read_trylock(lock) argument
80 #define _raw_write_trylock(lock) __raw_write_trylock(lock) argument
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| D | spinlock.h | 96 # define raw_spin_lock_init(lock) \ argument
104 # define raw_spin_lock_init(lock) \ argument
108 #define raw_spin_is_locked(lock) arch_spin_is_locked(&(lock)->raw_lock) argument
111 #define raw_spin_is_contended(lock) arch_spin_is_contended(&(lock)->raw_lock) argument
113 #define raw_spin_is_contended(lock) (((void)(lock), 0)) argument
173 #define do_raw_spin_lock_flags(lock, flags) do_raw_spin_lock(lock) argument
177 static inline void do_raw_spin_lock(raw_spinlock_t *lock) __acquires(lock) in do_raw_spin_lock()
184 #define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) argument
188 do_raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long *flags) __acquires(lock) in do_raw_spin_lock_flags()
194 static inline int do_raw_spin_trylock(raw_spinlock_t *lock) in do_raw_spin_trylock()
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| D | rwlock.h | 20 # define rwlock_init(lock) \ argument
27 # define rwlock_init(lock) \ argument
33 #define do_raw_read_lock_flags(lock, flags) do_raw_read_lock(lock) argument
37 #define do_raw_write_lock_flags(lock, flags) do_raw_write_lock(lock) argument
43 # define arch_read_lock_flags(lock, flags) arch_read_lock(lock) argument
47 # define arch_write_lock_flags(lock, flags) arch_write_lock(lock) argument
51 # define do_raw_read_lock_flags(lock, flags) \ argument
56 # define do_raw_write_lock_flags(lock, flags) \ argument
67 #define read_trylock(lock) __cond_lock(lock, _raw_read_trylock(lock)) argument
68 #define write_trylock(lock) __cond_lock(lock, _raw_write_trylock(lock)) argument
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| D | spinlock_api_smp.h | 47 #define _raw_spin_lock(lock) __raw_spin_lock(lock) argument
51 #define _raw_spin_lock_bh(lock) __raw_spin_lock_bh(lock) argument
55 #define _raw_spin_lock_irq(lock) __raw_spin_lock_irq(lock) argument
59 #define _raw_spin_lock_irqsave(lock) __raw_spin_lock_irqsave(lock) argument
63 #define _raw_spin_trylock(lock) __raw_spin_trylock(lock) argument
67 #define _raw_spin_trylock_bh(lock) __raw_spin_trylock_bh(lock) argument
71 #define _raw_spin_unlock(lock) __raw_spin_unlock(lock) argument
75 #define _raw_spin_unlock_bh(lock) __raw_spin_unlock_bh(lock) argument
79 #define _raw_spin_unlock_irq(lock) __raw_spin_unlock_irq(lock) argument
83 #define _raw_spin_unlock_irqrestore(lock, flags) __raw_spin_unlock_irqrestore(lock, flags) argument
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| D | spinlock_up.h | 29 static inline void arch_spin_lock(arch_spinlock_t *lock) in arch_spin_lock()
35 static inline int arch_spin_trylock(arch_spinlock_t *lock) in arch_spin_trylock()
45 static inline void arch_spin_unlock(arch_spinlock_t *lock) in arch_spin_unlock()
54 #define arch_read_lock(lock) do { barrier(); (void)(lock); } while (0) argument
55 #define arch_write_lock(lock) do { barrier(); (void)(lock); } while (0) argument
56 #define arch_read_trylock(lock) ({ barrier(); (void)(lock); 1; }) argument
57 #define arch_write_trylock(lock) ({ barrier(); (void)(lock); 1; }) argument
58 #define arch_read_unlock(lock) do { barrier(); (void)(lock); } while (0) argument
59 #define arch_write_unlock(lock) do { barrier(); (void)(lock); } while (0) argument
62 #define arch_spin_is_locked(lock) ((void)(lock), 0) argument
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| D | mutex.h | 73 static inline struct task_struct *__mutex_owner(struct mutex *lock) in __mutex_owner()
102 static inline void mutex_destroy(struct mutex *lock) {} in mutex_destroy()
147 static inline bool mutex_is_locked(struct mutex *lock) in mutex_is_locked()
166 #define mutex_lock(lock) mutex_lock_nested(lock, 0) argument
167 #define mutex_lock_interruptible(lock) mutex_lock_interruptible_nested(lock, 0) argument
168 #define mutex_lock_killable(lock) mutex_lock_killable_nested(lock, 0) argument
169 #define mutex_lock_io(lock) mutex_lock_io_nested(lock, 0) argument
171 #define mutex_lock_nest_lock(lock, nest_lock) \ argument
183 # define mutex_lock_nested(lock, subclass) mutex_lock(lock) argument
184 # define mutex_lock_interruptible_nested(lock, subclass) mutex_lock_interruptible(lock) argument
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| /Linux-v4.19/kernel/locking/ |
| D | spinlock.c | 126 int __lockfunc _raw_spin_trylock(raw_spinlock_t *lock) in _raw_spin_trylock()
134 int __lockfunc _raw_spin_trylock_bh(raw_spinlock_t *lock) in _raw_spin_trylock_bh()
142 void __lockfunc _raw_spin_lock(raw_spinlock_t *lock) in _raw_spin_lock()
150 unsigned long __lockfunc _raw_spin_lock_irqsave(raw_spinlock_t *lock) in _raw_spin_lock_irqsave()
158 void __lockfunc _raw_spin_lock_irq(raw_spinlock_t *lock) in _raw_spin_lock_irq()
166 void __lockfunc _raw_spin_lock_bh(raw_spinlock_t *lock) in _raw_spin_lock_bh()
174 void __lockfunc _raw_spin_unlock(raw_spinlock_t *lock) in _raw_spin_unlock()
182 void __lockfunc _raw_spin_unlock_irqrestore(raw_spinlock_t *lock, unsigned long flags) in _raw_spin_unlock_irqrestore()
190 void __lockfunc _raw_spin_unlock_irq(raw_spinlock_t *lock) in _raw_spin_unlock_irq()
198 void __lockfunc _raw_spin_unlock_bh(raw_spinlock_t *lock) in _raw_spin_unlock_bh()
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| D | spinlock_debug.c | 16 void __raw_spin_lock_init(raw_spinlock_t *lock, const char *name, in __raw_spin_lock_init()
34 void __rwlock_init(rwlock_t *lock, const char *name, in __rwlock_init()
52 static void spin_dump(raw_spinlock_t *lock, const char *msg) in spin_dump()
70 static void spin_bug(raw_spinlock_t *lock, const char *msg) in spin_bug()
78 #define SPIN_BUG_ON(cond, lock, msg) if (unlikely(cond)) spin_bug(lock, msg) argument
81 debug_spin_lock_before(raw_spinlock_t *lock) in debug_spin_lock_before()
89 static inline void debug_spin_lock_after(raw_spinlock_t *lock) in debug_spin_lock_after()
95 static inline void debug_spin_unlock(raw_spinlock_t *lock) in debug_spin_unlock()
110 void do_raw_spin_lock(raw_spinlock_t *lock) in do_raw_spin_lock()
117 int do_raw_spin_trylock(raw_spinlock_t *lock) in do_raw_spin_trylock()
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| D | mutex.c | 39 __mutex_init(struct mutex *lock, const char *name, struct lock_class_key *key) in __mutex_init()
80 static inline struct task_struct *__mutex_trylock_or_owner(struct mutex *lock) in __mutex_trylock_or_owner()
123 static inline bool __mutex_trylock(struct mutex *lock) in __mutex_trylock()
139 static __always_inline bool __mutex_trylock_fast(struct mutex *lock) in __mutex_trylock_fast()
150 static __always_inline bool __mutex_unlock_fast(struct mutex *lock) in __mutex_unlock_fast()
161 static inline void __mutex_set_flag(struct mutex *lock, unsigned long flag) in __mutex_set_flag()
166 static inline void __mutex_clear_flag(struct mutex *lock, unsigned long flag) in __mutex_clear_flag()
171 static inline bool __mutex_waiter_is_first(struct mutex *lock, struct mutex_waiter *waiter) in __mutex_waiter_is_first()
181 __mutex_add_waiter(struct mutex *lock, struct mutex_waiter *waiter, in __mutex_add_waiter()
197 static void __mutex_handoff(struct mutex *lock, struct task_struct *task) in __mutex_handoff()
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| D | rtmutex.c | 52 rt_mutex_set_owner(struct rt_mutex *lock, struct task_struct *owner) in rt_mutex_set_owner()
62 static inline void clear_rt_mutex_waiters(struct rt_mutex *lock) in clear_rt_mutex_waiters()
68 static void fixup_rt_mutex_waiters(struct rt_mutex *lock) in fixup_rt_mutex_waiters()
152 static inline void mark_rt_mutex_waiters(struct rt_mutex *lock) in mark_rt_mutex_waiters()
168 static inline bool unlock_rt_mutex_safe(struct rt_mutex *lock, in unlock_rt_mutex_safe()
208 static inline void mark_rt_mutex_waiters(struct rt_mutex *lock) in mark_rt_mutex_waiters()
217 static inline bool unlock_rt_mutex_safe(struct rt_mutex *lock, in unlock_rt_mutex_safe()
272 rt_mutex_enqueue(struct rt_mutex *lock, struct rt_mutex_waiter *waiter) in rt_mutex_enqueue()
295 rt_mutex_dequeue(struct rt_mutex *lock, struct rt_mutex_waiter *waiter) in rt_mutex_dequeue()
458 struct rt_mutex *lock; in rt_mutex_adjust_prio_chain() local
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| D | mutex-debug.c | 30 void debug_mutex_lock_common(struct mutex *lock, struct mutex_waiter *waiter) in debug_mutex_lock_common()
37 void debug_mutex_wake_waiter(struct mutex *lock, struct mutex_waiter *waiter) in debug_mutex_wake_waiter()
51 void debug_mutex_add_waiter(struct mutex *lock, struct mutex_waiter *waiter, in debug_mutex_add_waiter()
60 void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter, in mutex_remove_waiter()
72 void debug_mutex_unlock(struct mutex *lock) in debug_mutex_unlock()
80 void debug_mutex_init(struct mutex *lock, const char *name, in debug_mutex_init()
101 void mutex_destroy(struct mutex *lock) in mutex_destroy()
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| D | qspinlock.c | 141 static __always_inline void clear_pending(struct qspinlock *lock) in clear_pending()
154 static __always_inline void clear_pending_set_locked(struct qspinlock *lock) in clear_pending_set_locked()
169 static __always_inline u32 xchg_tail(struct qspinlock *lock, u32 tail) in xchg_tail()
187 static __always_inline void clear_pending(struct qspinlock *lock) in clear_pending()
198 static __always_inline void clear_pending_set_locked(struct qspinlock *lock) in clear_pending_set_locked()
213 static __always_inline u32 xchg_tail(struct qspinlock *lock, u32 tail) in xchg_tail()
240 static __always_inline void set_locked(struct qspinlock *lock) in set_locked()
254 static __always_inline void __pv_kick_node(struct qspinlock *lock, in __pv_kick_node()
256 static __always_inline u32 __pv_wait_head_or_lock(struct qspinlock *lock, in __pv_wait_head_or_lock()
294 void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val) in queued_spin_lock_slowpath()
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| /Linux-v4.19/drivers/gpu/drm/ttm/ |
| D | ttm_lock.c | 46 void ttm_lock_init(struct ttm_lock *lock) in ttm_lock_init()
57 void ttm_read_unlock(struct ttm_lock *lock) in ttm_read_unlock()
66 static bool __ttm_read_lock(struct ttm_lock *lock) in __ttm_read_lock()
84 int ttm_read_lock(struct ttm_lock *lock, bool interruptible) in ttm_read_lock()
97 static bool __ttm_read_trylock(struct ttm_lock *lock, bool *locked) in __ttm_read_trylock()
121 int ttm_read_trylock(struct ttm_lock *lock, bool interruptible) in ttm_read_trylock()
140 void ttm_write_unlock(struct ttm_lock *lock) in ttm_write_unlock()
149 static bool __ttm_write_lock(struct ttm_lock *lock) in __ttm_write_lock()
170 int ttm_write_lock(struct ttm_lock *lock, bool interruptible) in ttm_write_lock()
190 static int __ttm_vt_unlock(struct ttm_lock *lock) in __ttm_vt_unlock()
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| /Linux-v4.19/arch/ia64/include/asm/ |
| D | spinlock.h | 43 static __always_inline void __ticket_spin_lock(arch_spinlock_t *lock) in __ticket_spin_lock()
63 static __always_inline int __ticket_spin_trylock(arch_spinlock_t *lock) in __ticket_spin_trylock()
72 static __always_inline void __ticket_spin_unlock(arch_spinlock_t *lock) in __ticket_spin_unlock()
80 static inline int __ticket_spin_is_locked(arch_spinlock_t *lock) in __ticket_spin_is_locked()
87 static inline int __ticket_spin_is_contended(arch_spinlock_t *lock) in __ticket_spin_is_contended()
94 static __always_inline int arch_spin_value_unlocked(arch_spinlock_t lock) in arch_spin_value_unlocked()
99 static inline int arch_spin_is_locked(arch_spinlock_t *lock) in arch_spin_is_locked()
104 static inline int arch_spin_is_contended(arch_spinlock_t *lock) in arch_spin_is_contended()
110 static __always_inline void arch_spin_lock(arch_spinlock_t *lock) in arch_spin_lock()
115 static __always_inline int arch_spin_trylock(arch_spinlock_t *lock) in arch_spin_trylock()
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| /Linux-v4.19/arch/alpha/include/asm/ |
| D | spinlock.h | 19 static inline int arch_spin_value_unlocked(arch_spinlock_t lock) in arch_spin_value_unlocked()
24 static inline void arch_spin_unlock(arch_spinlock_t * lock) in arch_spin_unlock()
30 static inline void arch_spin_lock(arch_spinlock_t * lock) in arch_spin_lock()
50 static inline int arch_spin_trylock(arch_spinlock_t *lock) in arch_spin_trylock()
57 static inline void arch_read_lock(arch_rwlock_t *lock) in arch_read_lock()
77 static inline void arch_write_lock(arch_rwlock_t *lock) in arch_write_lock()
97 static inline int arch_read_trylock(arch_rwlock_t * lock) in arch_read_trylock()
119 static inline int arch_write_trylock(arch_rwlock_t * lock) in arch_write_trylock()
141 static inline void arch_read_unlock(arch_rwlock_t * lock) in arch_read_unlock()
157 static inline void arch_write_unlock(arch_rwlock_t * lock) in arch_write_unlock()
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| /Linux-v4.19/arch/hexagon/include/asm/ |
| D | spinlock.h | 42 static inline void arch_read_lock(arch_rwlock_t *lock) in arch_read_lock()
57 static inline void arch_read_unlock(arch_rwlock_t *lock) in arch_read_unlock()
72 static inline int arch_read_trylock(arch_rwlock_t *lock) in arch_read_trylock()
90 static inline void arch_write_lock(arch_rwlock_t *lock) in arch_write_lock()
105 static inline int arch_write_trylock(arch_rwlock_t *lock) in arch_write_trylock()
123 static inline void arch_write_unlock(arch_rwlock_t *lock) in arch_write_unlock()
129 static inline void arch_spin_lock(arch_spinlock_t *lock) in arch_spin_lock()
144 static inline void arch_spin_unlock(arch_spinlock_t *lock) in arch_spin_unlock()
150 static inline unsigned int arch_spin_trylock(arch_spinlock_t *lock) in arch_spin_trylock()
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| /Linux-v4.19/arch/riscv/include/asm/ |
| D | spinlock.h | 30 static inline void arch_spin_unlock(arch_spinlock_t *lock) in arch_spin_unlock()
35 static inline int arch_spin_trylock(arch_spinlock_t *lock) in arch_spin_trylock()
49 static inline void arch_spin_lock(arch_spinlock_t *lock) in arch_spin_lock()
62 static inline void arch_read_lock(arch_rwlock_t *lock) in arch_read_lock()
77 static inline void arch_write_lock(arch_rwlock_t *lock) in arch_write_lock()
92 static inline int arch_read_trylock(arch_rwlock_t *lock) in arch_read_trylock()
110 static inline int arch_write_trylock(arch_rwlock_t *lock) in arch_write_trylock()
128 static inline void arch_read_unlock(arch_rwlock_t *lock) in arch_read_unlock()
138 static inline void arch_write_unlock(arch_rwlock_t *lock) in arch_write_unlock()
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| /Linux-v4.19/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/ |
| D | locks.h | 26 static inline void lock_impl_lock(struct lock_impl *lock) in lock_impl_lock()
31 static inline void lock_impl_unlock(struct lock_impl *lock) in lock_impl_unlock()
36 static inline bool lock_impl_trylock(struct lock_impl *lock) in lock_impl_trylock()
47 static inline void lock_impl_init(struct lock_impl *lock) in lock_impl_init()
61 static inline bool lock_impl_trylock(struct lock_impl *lock) in lock_impl_trylock()
79 static inline void lock_impl_lock(struct lock_impl *lock) in lock_impl_lock()
93 static inline void lock_impl_unlock(struct lock_impl *lock) in lock_impl_unlock()
110 static inline void lock_impl_init(struct lock_impl *lock) in lock_impl_init()
131 static inline void spin_lock_init(spinlock_t *lock) in spin_lock_init()
136 static inline void spin_lock(spinlock_t *lock) in spin_lock()
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| /Linux-v4.19/arch/sparc/include/asm/ |
| D | spinlock_32.h | 16 #define arch_spin_is_locked(lock) (*((volatile unsigned char *)(lock)) != 0) argument
18 static inline void arch_spin_lock(arch_spinlock_t *lock) in arch_spin_lock()
38 static inline int arch_spin_trylock(arch_spinlock_t *lock) in arch_spin_trylock()
48 static inline void arch_spin_unlock(arch_spinlock_t *lock) in arch_spin_unlock()
92 #define arch_read_lock(lock) \ argument
112 #define arch_read_unlock(lock) \ argument
133 static inline void arch_write_unlock(arch_rwlock_t *lock) in arch_write_unlock()
177 #define arch_read_trylock(lock) \ argument
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| /Linux-v4.19/tools/lib/lockdep/include/liblockdep/ |
| D | rwlock.h | 21 static inline int __rwlock_init(liblockdep_pthread_rwlock_t *lock, in __rwlock_init()
31 #define liblockdep_pthread_rwlock_init(lock, attr) \ argument
38 static inline int liblockdep_pthread_rwlock_rdlock(liblockdep_pthread_rwlock_t *lock) in liblockdep_pthread_rwlock_rdlock()
45 static inline int liblockdep_pthread_rwlock_unlock(liblockdep_pthread_rwlock_t *lock) in liblockdep_pthread_rwlock_unlock()
51 static inline int liblockdep_pthread_rwlock_wrlock(liblockdep_pthread_rwlock_t *lock) in liblockdep_pthread_rwlock_wrlock()
57 static inline int liblockdep_pthread_rwlock_tryrdlock(liblockdep_pthread_rwlock_t *lock) in liblockdep_pthread_rwlock_tryrdlock()
63 static inline int liblockdep_pthread_rwlock_trywlock(liblockdep_pthread_rwlock_t *lock) in liblockdep_pthread_rwlock_trywlock()
69 static inline int liblockdep_rwlock_destroy(liblockdep_pthread_rwlock_t *lock) in liblockdep_rwlock_destroy()
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| /Linux-v4.19/fs/ocfs2/dlm/ |
| D | dlmast.c | 64 static int dlm_should_cancel_bast(struct dlm_ctxt *dlm, struct dlm_lock *lock) in dlm_should_cancel_bast()
91 void __dlm_queue_ast(struct dlm_ctxt *dlm, struct dlm_lock *lock) in __dlm_queue_ast()
146 void dlm_queue_ast(struct dlm_ctxt *dlm, struct dlm_lock *lock) in dlm_queue_ast()
157 void __dlm_queue_bast(struct dlm_ctxt *dlm, struct dlm_lock *lock) in __dlm_queue_bast()
183 void dlm_queue_bast(struct dlm_ctxt *dlm, struct dlm_lock *lock) in dlm_queue_bast()
194 struct dlm_lock *lock) in dlm_update_lvb()
224 struct dlm_lock *lock) in dlm_do_local_ast()
242 struct dlm_lock *lock) in dlm_do_remote_ast()
266 struct dlm_lock *lock, int blocked_type) in dlm_do_local_bast()
290 struct dlm_lock *lock = NULL; in dlm_proxy_ast_handler() local
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| /Linux-v4.19/drivers/acpi/acpica/ |
| D | utlock.c | 28 acpi_status acpi_ut_create_rw_lock(struct acpi_rw_lock *lock) in acpi_ut_create_rw_lock()
42 void acpi_ut_delete_rw_lock(struct acpi_rw_lock *lock) in acpi_ut_delete_rw_lock()
71 acpi_status acpi_ut_acquire_read_lock(struct acpi_rw_lock *lock) in acpi_ut_acquire_read_lock()
93 acpi_status acpi_ut_release_read_lock(struct acpi_rw_lock *lock) in acpi_ut_release_read_lock()
129 acpi_status acpi_ut_acquire_write_lock(struct acpi_rw_lock *lock) in acpi_ut_acquire_write_lock()
137 void acpi_ut_release_write_lock(struct acpi_rw_lock *lock) in acpi_ut_release_write_lock()
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| /Linux-v4.19/include/asm-generic/ |
| D | qspinlock.h | 29 static __always_inline int queued_spin_is_locked(struct qspinlock *lock) in queued_spin_is_locked()
48 static __always_inline int queued_spin_value_unlocked(struct qspinlock lock) in queued_spin_value_unlocked()
58 static __always_inline int queued_spin_is_contended(struct qspinlock *lock) in queued_spin_is_contended()
67 static __always_inline int queued_spin_trylock(struct qspinlock *lock) in queued_spin_trylock()
81 static __always_inline void queued_spin_lock(struct qspinlock *lock) in queued_spin_lock()
96 static __always_inline void queued_spin_unlock(struct qspinlock *lock) in queued_spin_unlock()
106 static __always_inline bool virt_spin_lock(struct qspinlock *lock) in virt_spin_lock()
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| /Linux-v4.19/arch/powerpc/include/asm/ |
| D | spinlock.h | 65 static __always_inline int arch_spin_value_unlocked(arch_spinlock_t lock) in arch_spin_value_unlocked()
70 static inline int arch_spin_is_locked(arch_spinlock_t *lock) in arch_spin_is_locked()
80 static inline unsigned long __arch_spin_trylock(arch_spinlock_t *lock) in __arch_spin_trylock()
100 static inline int arch_spin_trylock(arch_spinlock_t *lock) in arch_spin_trylock()
131 static inline void arch_spin_lock(arch_spinlock_t *lock) in arch_spin_lock()
147 void arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long flags) in arch_spin_lock_flags()
168 static inline void arch_spin_unlock(arch_spinlock_t *lock) in arch_spin_unlock()
305 #define arch_spin_relax(lock) __spin_yield(lock) argument
306 #define arch_read_relax(lock) __rw_yield(lock) argument
307 #define arch_write_relax(lock) __rw_yield(lock) argument
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