| 1 | |
| 2 |
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| 3 | |
| 4 | |
| 5 |
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| 6 | #ifndef _LINUX_ATOMIC_FALLBACK_H
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| 7 | #define _LINUX_ATOMIC_FALLBACK_H
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| 8 |
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| 9 | #ifndef xchg_relaxed
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| 10 | #define xchg_relaxed xchg
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| 11 | #define xchg_acquire xchg
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| 12 | #define xchg_release xchg
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| 13 | #else
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| 14 |
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| 15 | #ifndef xchg_acquire
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| 16 | #define xchg_acquire(...) \
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| 17 | __atomic_op_acquire(xchg, __VA_ARGS__)
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| 18 | #endif
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| 19 |
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| 20 | #ifndef xchg_release
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| 21 | #define xchg_release(...) \
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| 22 | __atomic_op_release(xchg, __VA_ARGS__)
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| 23 | #endif
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| 24 |
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| 25 | #ifndef xchg
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| 26 | #define xchg(...) \
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| 27 | __atomic_op_fence(xchg, __VA_ARGS__)
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| 28 | #endif
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| 29 |
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| 30 | #endif
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| 31 |
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| 32 | #ifndef cmpxchg_relaxed
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| 33 | #define cmpxchg_relaxed cmpxchg
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| 34 | #define cmpxchg_acquire cmpxchg
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| 35 | #define cmpxchg_release cmpxchg
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| 36 | #else
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| 37 |
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| 38 | #ifndef cmpxchg_acquire
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| 39 | #define cmpxchg_acquire(...) \
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| 40 | __atomic_op_acquire(cmpxchg, __VA_ARGS__)
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| 41 | #endif
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| 42 |
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| 43 | #ifndef cmpxchg_release
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| 44 | #define cmpxchg_release(...) \
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| 45 | __atomic_op_release(cmpxchg, __VA_ARGS__)
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| 46 | #endif
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| 47 |
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| 48 | #ifndef cmpxchg
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| 49 | #define cmpxchg(...) \
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| 50 | __atomic_op_fence(cmpxchg, __VA_ARGS__)
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| 51 | #endif
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| 52 |
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| 53 | #endif
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| 54 |
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| 55 | #ifndef cmpxchg64_relaxed
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| 56 | #define cmpxchg64_relaxed cmpxchg64
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| 57 | #define cmpxchg64_acquire cmpxchg64
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| 58 | #define cmpxchg64_release cmpxchg64
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| 59 | #else
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| 60 |
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| 61 | #ifndef cmpxchg64_acquire
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| 62 | #define cmpxchg64_acquire(...) \
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| 63 | __atomic_op_acquire(cmpxchg64, __VA_ARGS__)
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| 64 | #endif
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| 65 |
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| 66 | #ifndef cmpxchg64_release
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| 67 | #define cmpxchg64_release(...) \
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| 68 | __atomic_op_release(cmpxchg64, __VA_ARGS__)
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| 69 | #endif
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| 70 |
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| 71 | #ifndef cmpxchg64
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| 72 | #define cmpxchg64(...) \
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| 73 | __atomic_op_fence(cmpxchg64, __VA_ARGS__)
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| 74 | #endif
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| 75 |
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| 76 | #endif
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| 77 |
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| 78 | #ifndef atomic_read_acquire
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| 79 | static inline int
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| 80 | atomic_read_acquire(const atomic_t *v)
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| 81 | {
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| 82 | return smp_load_acquire(&(v)->counter);
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| 83 | }
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| 84 | #define atomic_read_acquire atomic_read_acquire
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| 85 | #endif
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| 86 |
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| 87 | #ifndef atomic_set_release
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| 88 | static inline void
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| 89 | atomic_set_release(atomic_t *v, int i)
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| 90 | {
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| 91 | smp_store_release(&(v)->counter, i);
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| 92 | }
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| 93 | #define atomic_set_release atomic_set_release
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| 94 | #endif
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| 95 |
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| 96 | #ifndef atomic_add_return_relaxed
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| 97 | #define atomic_add_return_acquire atomic_add_return
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| 98 | #define atomic_add_return_release atomic_add_return
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| 99 | #define atomic_add_return_relaxed atomic_add_return
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| 100 | #else
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| 101 |
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| 102 | #ifndef atomic_add_return_acquire
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| 103 | static inline int
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| 104 | atomic_add_return_acquire(int i, atomic_t *v)
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| 105 | {
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| 106 | int ret = atomic_add_return_relaxed(i, v);
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| 107 | __atomic_acquire_fence();
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| 108 | return ret;
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| 109 | }
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| 110 | #define atomic_add_return_acquire atomic_add_return_acquire
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| 111 | #endif
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| 112 |
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| 113 | #ifndef atomic_add_return_release
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| 114 | static inline int
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| 115 | atomic_add_return_release(int i, atomic_t *v)
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| 116 | {
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| 117 | __atomic_release_fence();
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| 118 | return atomic_add_return_relaxed(i, v);
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| 119 | }
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| 120 | #define atomic_add_return_release atomic_add_return_release
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| 121 | #endif
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| 122 |
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| 123 | #ifndef atomic_add_return
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| 124 | static inline int
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| 125 | atomic_add_return(int i, atomic_t *v)
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| 126 | {
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| 127 | int ret;
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| 128 | __atomic_pre_full_fence();
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| 129 | ret = atomic_add_return_relaxed(i, v);
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| 130 | __atomic_post_full_fence();
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| 131 | return ret;
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| 132 | }
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| 133 | #define atomic_add_return atomic_add_return
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| 134 | #endif
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| 135 |
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| 136 | #endif
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| 137 |
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| 138 | #ifndef atomic_fetch_add_relaxed
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| 139 | #define atomic_fetch_add_acquire atomic_fetch_add
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| 140 | #define atomic_fetch_add_release atomic_fetch_add
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| 141 | #define atomic_fetch_add_relaxed atomic_fetch_add
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| 142 | #else
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| 143 |
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| 144 | #ifndef atomic_fetch_add_acquire
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| 145 | static inline int
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| 146 | atomic_fetch_add_acquire(int i, atomic_t *v)
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| 147 | {
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| 148 | int ret = atomic_fetch_add_relaxed(i, v);
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| 149 | __atomic_acquire_fence();
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| 150 | return ret;
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| 151 | }
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| 152 | #define atomic_fetch_add_acquire atomic_fetch_add_acquire
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| 153 | #endif
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| 154 |
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| 155 | #ifndef atomic_fetch_add_release
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| 156 | static inline int
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| 157 | atomic_fetch_add_release(int i, atomic_t *v)
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| 158 | {
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| 159 | __atomic_release_fence();
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| 160 | return atomic_fetch_add_relaxed(i, v);
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| 161 | }
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| 162 | #define atomic_fetch_add_release atomic_fetch_add_release
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| 163 | #endif
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| 164 |
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| 165 | #ifndef atomic_fetch_add
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| 166 | static inline int
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| 167 | atomic_fetch_add(int i, atomic_t *v)
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| 168 | {
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| 169 | int ret;
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| 170 | __atomic_pre_full_fence();
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| 171 | ret = atomic_fetch_add_relaxed(i, v);
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| 172 | __atomic_post_full_fence();
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| 173 | return ret;
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| 174 | }
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| 175 | #define atomic_fetch_add atomic_fetch_add
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| 176 | #endif
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| 177 |
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| 178 | #endif
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| 179 |
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| 180 | #ifndef atomic_sub_return_relaxed
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| 181 | #define atomic_sub_return_acquire atomic_sub_return
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| 182 | #define atomic_sub_return_release atomic_sub_return
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| 183 | #define atomic_sub_return_relaxed atomic_sub_return
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| 184 | #else
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| 185 |
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| 186 | #ifndef atomic_sub_return_acquire
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| 187 | static inline int
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| 188 | atomic_sub_return_acquire(int i, atomic_t *v)
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| 189 | {
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| 190 | int ret = atomic_sub_return_relaxed(i, v);
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| 191 | __atomic_acquire_fence();
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| 192 | return ret;
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| 193 | }
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| 194 | #define atomic_sub_return_acquire atomic_sub_return_acquire
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| 195 | #endif
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| 196 |
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| 197 | #ifndef atomic_sub_return_release
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| 198 | static inline int
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| 199 | atomic_sub_return_release(int i, atomic_t *v)
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| 200 | {
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| 201 | __atomic_release_fence();
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| 202 | return atomic_sub_return_relaxed(i, v);
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| 203 | }
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| 204 | #define atomic_sub_return_release atomic_sub_return_release
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| 205 | #endif
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| 206 |
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| 207 | #ifndef atomic_sub_return
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| 208 | static inline int
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| 209 | atomic_sub_return(int i, atomic_t *v)
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| 210 | {
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| 211 | int ret;
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| 212 | __atomic_pre_full_fence();
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| 213 | ret = atomic_sub_return_relaxed(i, v);
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| 214 | __atomic_post_full_fence();
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| 215 | return ret;
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| 216 | }
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| 217 | #define atomic_sub_return atomic_sub_return
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| 218 | #endif
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| 219 |
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| 220 | #endif
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| 221 |
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| 222 | #ifndef atomic_fetch_sub_relaxed
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| 223 | #define atomic_fetch_sub_acquire atomic_fetch_sub
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| 224 | #define atomic_fetch_sub_release atomic_fetch_sub
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| 225 | #define atomic_fetch_sub_relaxed atomic_fetch_sub
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| 226 | #else
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| 227 |
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| 228 | #ifndef atomic_fetch_sub_acquire
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| 229 | static inline int
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| 230 | atomic_fetch_sub_acquire(int i, atomic_t *v)
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| 231 | {
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| 232 | int ret = atomic_fetch_sub_relaxed(i, v);
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| 233 | __atomic_acquire_fence();
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| 234 | return ret;
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| 235 | }
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| 236 | #define atomic_fetch_sub_acquire atomic_fetch_sub_acquire
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| 237 | #endif
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| 238 |
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| 239 | #ifndef atomic_fetch_sub_release
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| 240 | static inline int
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| 241 | atomic_fetch_sub_release(int i, atomic_t *v)
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| 242 | {
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| 243 | __atomic_release_fence();
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| 244 | return atomic_fetch_sub_relaxed(i, v);
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| 245 | }
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| 246 | #define atomic_fetch_sub_release atomic_fetch_sub_release
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| 247 | #endif
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| 248 |
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| 249 | #ifndef atomic_fetch_sub
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| 250 | static inline int
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| 251 | atomic_fetch_sub(int i, atomic_t *v)
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| 252 | {
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| 253 | int ret;
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| 254 | __atomic_pre_full_fence();
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| 255 | ret = atomic_fetch_sub_relaxed(i, v);
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| 256 | __atomic_post_full_fence();
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| 257 | return ret;
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| 258 | }
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| 259 | #define atomic_fetch_sub atomic_fetch_sub
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| 260 | #endif
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| 261 |
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| 262 | #endif
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| 263 |
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| 264 | #ifndef atomic_inc
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| 265 | static inline void
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| 266 | atomic_inc(atomic_t *v)
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| 267 | {
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| 268 | atomic_add(1, v);
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| 269 | }
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| 270 | #define atomic_inc atomic_inc
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| 271 | #endif
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| 272 |
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| 273 | #ifndef atomic_inc_return_relaxed
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| 274 | #ifdef atomic_inc_return
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| 275 | #define atomic_inc_return_acquire atomic_inc_return
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| 276 | #define atomic_inc_return_release atomic_inc_return
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| 277 | #define atomic_inc_return_relaxed atomic_inc_return
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| 278 | #endif
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| 279 |
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| 280 | #ifndef atomic_inc_return
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| 281 | static inline int
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| 282 | atomic_inc_return(atomic_t *v)
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| 283 | {
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| 284 | return atomic_add_return(1, v);
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| 285 | }
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| 286 | #define atomic_inc_return atomic_inc_return
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| 287 | #endif
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| 288 |
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| 289 | #ifndef atomic_inc_return_acquire
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| 290 | static inline int
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| 291 | atomic_inc_return_acquire(atomic_t *v)
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| 292 | {
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| 293 | return atomic_add_return_acquire(1, v);
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| 294 | }
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| 295 | #define atomic_inc_return_acquire atomic_inc_return_acquire
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| 296 | #endif
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| 297 |
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| 298 | #ifndef atomic_inc_return_release
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| 299 | static inline int
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| 300 | atomic_inc_return_release(atomic_t *v)
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| 301 | {
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| 302 | return atomic_add_return_release(1, v);
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| 303 | }
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| 304 | #define atomic_inc_return_release atomic_inc_return_release
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| 305 | #endif
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| 306 |
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| 307 | #ifndef atomic_inc_return_relaxed
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| 308 | static inline int
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| 309 | atomic_inc_return_relaxed(atomic_t *v)
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| 310 | {
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| 311 | return atomic_add_return_relaxed(1, v);
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| 312 | }
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| 313 | #define atomic_inc_return_relaxed atomic_inc_return_relaxed
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| 314 | #endif
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| 315 |
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| 316 | #else
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| 317 |
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| 318 | #ifndef atomic_inc_return_acquire
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| 319 | static inline int
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| 320 | atomic_inc_return_acquire(atomic_t *v)
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| 321 | {
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| 322 | int ret = atomic_inc_return_relaxed(v);
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| 323 | __atomic_acquire_fence();
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| 324 | return ret;
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| 325 | }
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| 326 | #define atomic_inc_return_acquire atomic_inc_return_acquire
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| 327 | #endif
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| 328 |
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| 329 | #ifndef atomic_inc_return_release
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| 330 | static inline int
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| 331 | atomic_inc_return_release(atomic_t *v)
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| 332 | {
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| 333 | __atomic_release_fence();
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| 334 | return atomic_inc_return_relaxed(v);
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| 335 | }
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| 336 | #define atomic_inc_return_release atomic_inc_return_release
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| 337 | #endif
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| 338 |
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| 339 | #ifndef atomic_inc_return
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| 340 | static inline int
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| 341 | atomic_inc_return(atomic_t *v)
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| 342 | {
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| 343 | int ret;
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| 344 | __atomic_pre_full_fence();
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| 345 | ret = atomic_inc_return_relaxed(v);
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| 346 | __atomic_post_full_fence();
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| 347 | return ret;
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| 348 | }
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| 349 | #define atomic_inc_return atomic_inc_return
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| 350 | #endif
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| 351 |
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| 352 | #endif
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| 353 |
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| 354 | #ifndef atomic_fetch_inc_relaxed
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| 355 | #ifdef atomic_fetch_inc
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| 356 | #define atomic_fetch_inc_acquire atomic_fetch_inc
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| 357 | #define atomic_fetch_inc_release atomic_fetch_inc
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| 358 | #define atomic_fetch_inc_relaxed atomic_fetch_inc
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| 359 | #endif
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| 360 |
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| 361 | #ifndef atomic_fetch_inc
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| 362 | static inline int
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| 363 | atomic_fetch_inc(atomic_t *v)
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| 364 | {
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| 365 | return atomic_fetch_add(1, v);
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| 366 | }
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| 367 | #define atomic_fetch_inc atomic_fetch_inc
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| 368 | #endif
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| 369 |
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| 370 | #ifndef atomic_fetch_inc_acquire
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| 371 | static inline int
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| 372 | atomic_fetch_inc_acquire(atomic_t *v)
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| 373 | {
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| 374 | return atomic_fetch_add_acquire(1, v);
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| 375 | }
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| 376 | #define atomic_fetch_inc_acquire atomic_fetch_inc_acquire
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| 377 | #endif
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| 378 |
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| 379 | #ifndef atomic_fetch_inc_release
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| 380 | static inline int
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| 381 | atomic_fetch_inc_release(atomic_t *v)
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| 382 | {
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| 383 | return atomic_fetch_add_release(1, v);
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| 384 | }
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| 385 | #define atomic_fetch_inc_release atomic_fetch_inc_release
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| 386 | #endif
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| 387 |
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| 388 | #ifndef atomic_fetch_inc_relaxed
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| 389 | static inline int
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| 390 | atomic_fetch_inc_relaxed(atomic_t *v)
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| 391 | {
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| 392 | return atomic_fetch_add_relaxed(1, v);
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| 393 | }
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| 394 | #define atomic_fetch_inc_relaxed atomic_fetch_inc_relaxed
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| 395 | #endif
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| 396 |
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| 397 | #else
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| 398 |
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| 399 | #ifndef atomic_fetch_inc_acquire
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| 400 | static inline int
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| 401 | atomic_fetch_inc_acquire(atomic_t *v)
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| 402 | {
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| 403 | int ret = atomic_fetch_inc_relaxed(v);
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| 404 | __atomic_acquire_fence();
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| 405 | return ret;
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| 406 | }
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| 407 | #define atomic_fetch_inc_acquire atomic_fetch_inc_acquire
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| 408 | #endif
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| 409 |
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| 410 | #ifndef atomic_fetch_inc_release
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| 411 | static inline int
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| 412 | atomic_fetch_inc_release(atomic_t *v)
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| 413 | {
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| 414 | __atomic_release_fence();
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| 415 | return atomic_fetch_inc_relaxed(v);
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| 416 | }
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| 417 | #define atomic_fetch_inc_release atomic_fetch_inc_release
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| 418 | #endif
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| 419 |
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| 420 | #ifndef atomic_fetch_inc
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| 421 | static inline int
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| 422 | atomic_fetch_inc(atomic_t *v)
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| 423 | {
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| 424 | int ret;
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| 425 | __atomic_pre_full_fence();
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| 426 | ret = atomic_fetch_inc_relaxed(v);
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| 427 | __atomic_post_full_fence();
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| 428 | return ret;
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| 429 | }
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| 430 | #define atomic_fetch_inc atomic_fetch_inc
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| 431 | #endif
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| 432 |
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| 433 | #endif
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| 434 |
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| 435 | #ifndef atomic_dec
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| 436 | static inline void
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| 437 | atomic_dec(atomic_t *v)
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| 438 | {
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| 439 | atomic_sub(1, v);
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| 440 | }
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| 441 | #define atomic_dec atomic_dec
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| 442 | #endif
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| 443 |
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| 444 | #ifndef atomic_dec_return_relaxed
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| 445 | #ifdef atomic_dec_return
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| 446 | #define atomic_dec_return_acquire atomic_dec_return
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| 447 | #define atomic_dec_return_release atomic_dec_return
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| 448 | #define atomic_dec_return_relaxed atomic_dec_return
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| 449 | #endif
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| 450 |
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| 451 | #ifndef atomic_dec_return
|
| 452 | static inline int
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| 453 | atomic_dec_return(atomic_t *v)
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| 454 | {
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| 455 | return atomic_sub_return(1, v);
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| 456 | }
|
| 457 | #define atomic_dec_return atomic_dec_return
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| 458 | #endif
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| 459 |
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| 460 | #ifndef atomic_dec_return_acquire
|
| 461 | static inline int
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| 462 | atomic_dec_return_acquire(atomic_t *v)
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| 463 | {
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| 464 | return atomic_sub_return_acquire(1, v);
|
| 465 | }
|
| 466 | #define atomic_dec_return_acquire atomic_dec_return_acquire
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| 467 | #endif
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| 468 |
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| 469 | #ifndef atomic_dec_return_release
|
| 470 | static inline int
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| 471 | atomic_dec_return_release(atomic_t *v)
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| 472 | {
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| 473 | return atomic_sub_return_release(1, v);
|
| 474 | }
|
| 475 | #define atomic_dec_return_release atomic_dec_return_release
|
| 476 | #endif
|
| 477 |
|
| 478 | #ifndef atomic_dec_return_relaxed
|
| 479 | static inline int
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| 480 | atomic_dec_return_relaxed(atomic_t *v)
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| 481 | {
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| 482 | return atomic_sub_return_relaxed(1, v);
|
| 483 | }
|
| 484 | #define atomic_dec_return_relaxed atomic_dec_return_relaxed
|
| 485 | #endif
|
| 486 |
|
| 487 | #else
|
| 488 |
|
| 489 | #ifndef atomic_dec_return_acquire
|
| 490 | static inline int
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| 491 | atomic_dec_return_acquire(atomic_t *v)
|
| 492 | {
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| 493 | int ret = atomic_dec_return_relaxed(v);
|
| 494 | __atomic_acquire_fence();
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| 495 | return ret;
|
| 496 | }
|
| 497 | #define atomic_dec_return_acquire atomic_dec_return_acquire
|
| 498 | #endif
|
| 499 |
|
| 500 | #ifndef atomic_dec_return_release
|
| 501 | static inline int
|
| 502 | atomic_dec_return_release(atomic_t *v)
|
| 503 | {
|
| 504 | __atomic_release_fence();
|
| 505 | return atomic_dec_return_relaxed(v);
|
| 506 | }
|
| 507 | #define atomic_dec_return_release atomic_dec_return_release
|
| 508 | #endif
|
| 509 |
|
| 510 | #ifndef atomic_dec_return
|
| 511 | static inline int
|
| 512 | atomic_dec_return(atomic_t *v)
|
| 513 | {
|
| 514 | int ret;
|
| 515 | __atomic_pre_full_fence();
|
| 516 | ret = atomic_dec_return_relaxed(v);
|
| 517 | __atomic_post_full_fence();
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| 518 | return ret;
|
| 519 | }
|
| 520 | #define atomic_dec_return atomic_dec_return
|
| 521 | #endif
|
| 522 |
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| 523 | #endif
|
| 524 |
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| 525 | #ifndef atomic_fetch_dec_relaxed
|
| 526 | #ifdef atomic_fetch_dec
|
| 527 | #define atomic_fetch_dec_acquire atomic_fetch_dec
|
| 528 | #define atomic_fetch_dec_release atomic_fetch_dec
|
| 529 | #define atomic_fetch_dec_relaxed atomic_fetch_dec
|
| 530 | #endif
|
| 531 |
|
| 532 | #ifndef atomic_fetch_dec
|
| 533 | static inline int
|
| 534 | atomic_fetch_dec(atomic_t *v)
|
| 535 | {
|
| 536 | return atomic_fetch_sub(1, v);
|
| 537 | }
|
| 538 | #define atomic_fetch_dec atomic_fetch_dec
|
| 539 | #endif
|
| 540 |
|
| 541 | #ifndef atomic_fetch_dec_acquire
|
| 542 | static inline int
|
| 543 | atomic_fetch_dec_acquire(atomic_t *v)
|
| 544 | {
|
| 545 | return atomic_fetch_sub_acquire(1, v);
|
| 546 | }
|
| 547 | #define atomic_fetch_dec_acquire atomic_fetch_dec_acquire
|
| 548 | #endif
|
| 549 |
|
| 550 | #ifndef atomic_fetch_dec_release
|
| 551 | static inline int
|
| 552 | atomic_fetch_dec_release(atomic_t *v)
|
| 553 | {
|
| 554 | return atomic_fetch_sub_release(1, v);
|
| 555 | }
|
| 556 | #define atomic_fetch_dec_release atomic_fetch_dec_release
|
| 557 | #endif
|
| 558 |
|
| 559 | #ifndef atomic_fetch_dec_relaxed
|
| 560 | static inline int
|
| 561 | atomic_fetch_dec_relaxed(atomic_t *v)
|
| 562 | {
|
| 563 | return atomic_fetch_sub_relaxed(1, v);
|
| 564 | }
|
| 565 | #define atomic_fetch_dec_relaxed atomic_fetch_dec_relaxed
|
| 566 | #endif
|
| 567 |
|
| 568 | #else
|
| 569 |
|
| 570 | #ifndef atomic_fetch_dec_acquire
|
| 571 | static inline int
|
| 572 | atomic_fetch_dec_acquire(atomic_t *v)
|
| 573 | {
|
| 574 | int ret = atomic_fetch_dec_relaxed(v);
|
| 575 | __atomic_acquire_fence();
|
| 576 | return ret;
|
| 577 | }
|
| 578 | #define atomic_fetch_dec_acquire atomic_fetch_dec_acquire
|
| 579 | #endif
|
| 580 |
|
| 581 | #ifndef atomic_fetch_dec_release
|
| 582 | static inline int
|
| 583 | atomic_fetch_dec_release(atomic_t *v)
|
| 584 | {
|
| 585 | __atomic_release_fence();
|
| 586 | return atomic_fetch_dec_relaxed(v);
|
| 587 | }
|
| 588 | #define atomic_fetch_dec_release atomic_fetch_dec_release
|
| 589 | #endif
|
| 590 |
|
| 591 | #ifndef atomic_fetch_dec
|
| 592 | static inline int
|
| 593 | atomic_fetch_dec(atomic_t *v)
|
| 594 | {
|
| 595 | int ret;
|
| 596 | __atomic_pre_full_fence();
|
| 597 | ret = atomic_fetch_dec_relaxed(v);
|
| 598 | __atomic_post_full_fence();
|
| 599 | return ret;
|
| 600 | }
|
| 601 | #define atomic_fetch_dec atomic_fetch_dec
|
| 602 | #endif
|
| 603 |
|
| 604 | #endif
|
| 605 |
|
| 606 | #ifndef atomic_fetch_and_relaxed
|
| 607 | #define atomic_fetch_and_acquire atomic_fetch_and
|
| 608 | #define atomic_fetch_and_release atomic_fetch_and
|
| 609 | #define atomic_fetch_and_relaxed atomic_fetch_and
|
| 610 | #else
|
| 611 |
|
| 612 | #ifndef atomic_fetch_and_acquire
|
| 613 | static inline int
|
| 614 | atomic_fetch_and_acquire(int i, atomic_t *v)
|
| 615 | {
|
| 616 | int ret = atomic_fetch_and_relaxed(i, v);
|
| 617 | __atomic_acquire_fence();
|
| 618 | return ret;
|
| 619 | }
|
| 620 | #define atomic_fetch_and_acquire atomic_fetch_and_acquire
|
| 621 | #endif
|
| 622 |
|
| 623 | #ifndef atomic_fetch_and_release
|
| 624 | static inline int
|
| 625 | atomic_fetch_and_release(int i, atomic_t *v)
|
| 626 | {
|
| 627 | __atomic_release_fence();
|
| 628 | return atomic_fetch_and_relaxed(i, v);
|
| 629 | }
|
| 630 | #define atomic_fetch_and_release atomic_fetch_and_release
|
| 631 | #endif
|
| 632 |
|
| 633 | #ifndef atomic_fetch_and
|
| 634 | static inline int
|
| 635 | atomic_fetch_and(int i, atomic_t *v)
|
| 636 | {
|
| 637 | int ret;
|
| 638 | __atomic_pre_full_fence();
|
| 639 | ret = atomic_fetch_and_relaxed(i, v);
|
| 640 | __atomic_post_full_fence();
|
| 641 | return ret;
|
| 642 | }
|
| 643 | #define atomic_fetch_and atomic_fetch_and
|
| 644 | #endif
|
| 645 |
|
| 646 | #endif
|
| 647 |
|
| 648 | #ifndef atomic_andnot
|
| 649 | static inline void
|
| 650 | atomic_andnot(int i, atomic_t *v)
|
| 651 | {
|
| 652 | atomic_and(~i, v);
|
| 653 | }
|
| 654 | #define atomic_andnot atomic_andnot
|
| 655 | #endif
|
| 656 |
|
| 657 | #ifndef atomic_fetch_andnot_relaxed
|
| 658 | #ifdef atomic_fetch_andnot
|
| 659 | #define atomic_fetch_andnot_acquire atomic_fetch_andnot
|
| 660 | #define atomic_fetch_andnot_release atomic_fetch_andnot
|
| 661 | #define atomic_fetch_andnot_relaxed atomic_fetch_andnot
|
| 662 | #endif
|
| 663 |
|
| 664 | #ifndef atomic_fetch_andnot
|
| 665 | static inline int
|
| 666 | atomic_fetch_andnot(int i, atomic_t *v)
|
| 667 | {
|
| 668 | return atomic_fetch_and(~i, v);
|
| 669 | }
|
| 670 | #define atomic_fetch_andnot atomic_fetch_andnot
|
| 671 | #endif
|
| 672 |
|
| 673 | #ifndef atomic_fetch_andnot_acquire
|
| 674 | static inline int
|
| 675 | atomic_fetch_andnot_acquire(int i, atomic_t *v)
|
| 676 | {
|
| 677 | return atomic_fetch_and_acquire(~i, v);
|
| 678 | }
|
| 679 | #define atomic_fetch_andnot_acquire atomic_fetch_andnot_acquire
|
| 680 | #endif
|
| 681 |
|
| 682 | #ifndef atomic_fetch_andnot_release
|
| 683 | static inline int
|
| 684 | atomic_fetch_andnot_release(int i, atomic_t *v)
|
| 685 | {
|
| 686 | return atomic_fetch_and_release(~i, v);
|
| 687 | }
|
| 688 | #define atomic_fetch_andnot_release atomic_fetch_andnot_release
|
| 689 | #endif
|
| 690 |
|
| 691 | #ifndef atomic_fetch_andnot_relaxed
|
| 692 | static inline int
|
| 693 | atomic_fetch_andnot_relaxed(int i, atomic_t *v)
|
| 694 | {
|
| 695 | return atomic_fetch_and_relaxed(~i, v);
|
| 696 | }
|
| 697 | #define atomic_fetch_andnot_relaxed atomic_fetch_andnot_relaxed
|
| 698 | #endif
|
| 699 |
|
| 700 | #else
|
| 701 |
|
| 702 | #ifndef atomic_fetch_andnot_acquire
|
| 703 | static inline int
|
| 704 | atomic_fetch_andnot_acquire(int i, atomic_t *v)
|
| 705 | {
|
| 706 | int ret = atomic_fetch_andnot_relaxed(i, v);
|
| 707 | __atomic_acquire_fence();
|
| 708 | return ret;
|
| 709 | }
|
| 710 | #define atomic_fetch_andnot_acquire atomic_fetch_andnot_acquire
|
| 711 | #endif
|
| 712 |
|
| 713 | #ifndef atomic_fetch_andnot_release
|
| 714 | static inline int
|
| 715 | atomic_fetch_andnot_release(int i, atomic_t *v)
|
| 716 | {
|
| 717 | __atomic_release_fence();
|
| 718 | return atomic_fetch_andnot_relaxed(i, v);
|
| 719 | }
|
| 720 | #define atomic_fetch_andnot_release atomic_fetch_andnot_release
|
| 721 | #endif
|
| 722 |
|
| 723 | #ifndef atomic_fetch_andnot
|
| 724 | static inline int
|
| 725 | atomic_fetch_andnot(int i, atomic_t *v)
|
| 726 | {
|
| 727 | int ret;
|
| 728 | __atomic_pre_full_fence();
|
| 729 | ret = atomic_fetch_andnot_relaxed(i, v);
|
| 730 | __atomic_post_full_fence();
|
| 731 | return ret;
|
| 732 | }
|
| 733 | #define atomic_fetch_andnot atomic_fetch_andnot
|
| 734 | #endif
|
| 735 |
|
| 736 | #endif
|
| 737 |
|
| 738 | #ifndef atomic_fetch_or_relaxed
|
| 739 | #define atomic_fetch_or_acquire atomic_fetch_or
|
| 740 | #define atomic_fetch_or_release atomic_fetch_or
|
| 741 | #define atomic_fetch_or_relaxed atomic_fetch_or
|
| 742 | #else
|
| 743 |
|
| 744 | #ifndef atomic_fetch_or_acquire
|
| 745 | static inline int
|
| 746 | atomic_fetch_or_acquire(int i, atomic_t *v)
|
| 747 | {
|
| 748 | int ret = atomic_fetch_or_relaxed(i, v);
|
| 749 | __atomic_acquire_fence();
|
| 750 | return ret;
|
| 751 | }
|
| 752 | #define atomic_fetch_or_acquire atomic_fetch_or_acquire
|
| 753 | #endif
|
| 754 |
|
| 755 | #ifndef atomic_fetch_or_release
|
| 756 | static inline int
|
| 757 | atomic_fetch_or_release(int i, atomic_t *v)
|
| 758 | {
|
| 759 | __atomic_release_fence();
|
| 760 | return atomic_fetch_or_relaxed(i, v);
|
| 761 | }
|
| 762 | #define atomic_fetch_or_release atomic_fetch_or_release
|
| 763 | #endif
|
| 764 |
|
| 765 | #ifndef atomic_fetch_or
|
| 766 | static inline int
|
| 767 | atomic_fetch_or(int i, atomic_t *v)
|
| 768 | {
|
| 769 | int ret;
|
| 770 | __atomic_pre_full_fence();
|
| 771 | ret = atomic_fetch_or_relaxed(i, v);
|
| 772 | __atomic_post_full_fence();
|
| 773 | return ret;
|
| 774 | }
|
| 775 | #define atomic_fetch_or atomic_fetch_or
|
| 776 | #endif
|
| 777 |
|
| 778 | #endif
|
| 779 |
|
| 780 | #ifndef atomic_fetch_xor_relaxed
|
| 781 | #define atomic_fetch_xor_acquire atomic_fetch_xor
|
| 782 | #define atomic_fetch_xor_release atomic_fetch_xor
|
| 783 | #define atomic_fetch_xor_relaxed atomic_fetch_xor
|
| 784 | #else
|
| 785 |
|
| 786 | #ifndef atomic_fetch_xor_acquire
|
| 787 | static inline int
|
| 788 | atomic_fetch_xor_acquire(int i, atomic_t *v)
|
| 789 | {
|
| 790 | int ret = atomic_fetch_xor_relaxed(i, v);
|
| 791 | __atomic_acquire_fence();
|
| 792 | return ret;
|
| 793 | }
|
| 794 | #define atomic_fetch_xor_acquire atomic_fetch_xor_acquire
|
| 795 | #endif
|
| 796 |
|
| 797 | #ifndef atomic_fetch_xor_release
|
| 798 | static inline int
|
| 799 | atomic_fetch_xor_release(int i, atomic_t *v)
|
| 800 | {
|
| 801 | __atomic_release_fence();
|
| 802 | return atomic_fetch_xor_relaxed(i, v);
|
| 803 | }
|
| 804 | #define atomic_fetch_xor_release atomic_fetch_xor_release
|
| 805 | #endif
|
| 806 |
|
| 807 | #ifndef atomic_fetch_xor
|
| 808 | static inline int
|
| 809 | atomic_fetch_xor(int i, atomic_t *v)
|
| 810 | {
|
| 811 | int ret;
|
| 812 | __atomic_pre_full_fence();
|
| 813 | ret = atomic_fetch_xor_relaxed(i, v);
|
| 814 | __atomic_post_full_fence();
|
| 815 | return ret;
|
| 816 | }
|
| 817 | #define atomic_fetch_xor atomic_fetch_xor
|
| 818 | #endif
|
| 819 |
|
| 820 | #endif
|
| 821 |
|
| 822 | #ifndef atomic_xchg_relaxed
|
| 823 | #define atomic_xchg_acquire atomic_xchg
|
| 824 | #define atomic_xchg_release atomic_xchg
|
| 825 | #define atomic_xchg_relaxed atomic_xchg
|
| 826 | #else
|
| 827 |
|
| 828 | #ifndef atomic_xchg_acquire
|
| 829 | static inline int
|
| 830 | atomic_xchg_acquire(atomic_t *v, int i)
|
| 831 | {
|
| 832 | int ret = atomic_xchg_relaxed(v, i);
|
| 833 | __atomic_acquire_fence();
|
| 834 | return ret;
|
| 835 | }
|
| 836 | #define atomic_xchg_acquire atomic_xchg_acquire
|
| 837 | #endif
|
| 838 |
|
| 839 | #ifndef atomic_xchg_release
|
| 840 | static inline int
|
| 841 | atomic_xchg_release(atomic_t *v, int i)
|
| 842 | {
|
| 843 | __atomic_release_fence();
|
| 844 | return atomic_xchg_relaxed(v, i);
|
| 845 | }
|
| 846 | #define atomic_xchg_release atomic_xchg_release
|
| 847 | #endif
|
| 848 |
|
| 849 | #ifndef atomic_xchg
|
| 850 | static inline int
|
| 851 | atomic_xchg(atomic_t *v, int i)
|
| 852 | {
|
| 853 | int ret;
|
| 854 | __atomic_pre_full_fence();
|
| 855 | ret = atomic_xchg_relaxed(v, i);
|
| 856 | __atomic_post_full_fence();
|
| 857 | return ret;
|
| 858 | }
|
| 859 | #define atomic_xchg atomic_xchg
|
| 860 | #endif
|
| 861 |
|
| 862 | #endif
|
| 863 |
|
| 864 | #ifndef atomic_cmpxchg_relaxed
|
| 865 | #define atomic_cmpxchg_acquire atomic_cmpxchg
|
| 866 | #define atomic_cmpxchg_release atomic_cmpxchg
|
| 867 | #define atomic_cmpxchg_relaxed atomic_cmpxchg
|
| 868 | #else
|
| 869 |
|
| 870 | #ifndef atomic_cmpxchg_acquire
|
| 871 | static inline int
|
| 872 | atomic_cmpxchg_acquire(atomic_t *v, int old, int new)
|
| 873 | {
|
| 874 | int ret = atomic_cmpxchg_relaxed(v, old, new);
|
| 875 | __atomic_acquire_fence();
|
| 876 | return ret;
|
| 877 | }
|
| 878 | #define atomic_cmpxchg_acquire atomic_cmpxchg_acquire
|
| 879 | #endif
|
| 880 |
|
| 881 | #ifndef atomic_cmpxchg_release
|
| 882 | static inline int
|
| 883 | atomic_cmpxchg_release(atomic_t *v, int old, int new)
|
| 884 | {
|
| 885 | __atomic_release_fence();
|
| 886 | return atomic_cmpxchg_relaxed(v, old, new);
|
| 887 | }
|
| 888 | #define atomic_cmpxchg_release atomic_cmpxchg_release
|
| 889 | #endif
|
| 890 |
|
| 891 | #ifndef atomic_cmpxchg
|
| 892 | static inline int
|
| 893 | atomic_cmpxchg(atomic_t *v, int old, int new)
|
| 894 | {
|
| 895 | int ret;
|
| 896 | __atomic_pre_full_fence();
|
| 897 | ret = atomic_cmpxchg_relaxed(v, old, new);
|
| 898 | __atomic_post_full_fence();
|
| 899 | return ret;
|
| 900 | }
|
| 901 | #define atomic_cmpxchg atomic_cmpxchg
|
| 902 | #endif
|
| 903 |
|
| 904 | #endif
|
| 905 |
|
| 906 | #ifndef atomic_try_cmpxchg_relaxed
|
| 907 | #ifdef atomic_try_cmpxchg
|
| 908 | #define atomic_try_cmpxchg_acquire atomic_try_cmpxchg
|
| 909 | #define atomic_try_cmpxchg_release atomic_try_cmpxchg
|
| 910 | #define atomic_try_cmpxchg_relaxed atomic_try_cmpxchg
|
| 911 | #endif
|
| 912 |
|
| 913 | #ifndef atomic_try_cmpxchg
|
| 914 | static inline bool
|
| 915 | atomic_try_cmpxchg(atomic_t *v, int *old, int new)
|
| 916 | {
|
| 917 | int r, o = *old;
|
| 918 | r = atomic_cmpxchg(v, o, new);
|
| 919 | if (unlikely(r != o))
|
| 920 | *old = r;
|
| 921 | return likely(r == o);
|
| 922 | }
|
| 923 | #define atomic_try_cmpxchg atomic_try_cmpxchg
|
| 924 | #endif
|
| 925 |
|
| 926 | #ifndef atomic_try_cmpxchg_acquire
|
| 927 | static inline bool
|
| 928 | atomic_try_cmpxchg_acquire(atomic_t *v, int *old, int new)
|
| 929 | {
|
| 930 | int r, o = *old;
|
| 931 | r = atomic_cmpxchg_acquire(v, o, new);
|
| 932 | if (unlikely(r != o))
|
| 933 | *old = r;
|
| 934 | return likely(r == o);
|
| 935 | }
|
| 936 | #define atomic_try_cmpxchg_acquire atomic_try_cmpxchg_acquire
|
| 937 | #endif
|
| 938 |
|
| 939 | #ifndef atomic_try_cmpxchg_release
|
| 940 | static inline bool
|
| 941 | atomic_try_cmpxchg_release(atomic_t *v, int *old, int new)
|
| 942 | {
|
| 943 | int r, o = *old;
|
| 944 | r = atomic_cmpxchg_release(v, o, new);
|
| 945 | if (unlikely(r != o))
|
| 946 | *old = r;
|
| 947 | return likely(r == o);
|
| 948 | }
|
| 949 | #define atomic_try_cmpxchg_release atomic_try_cmpxchg_release
|
| 950 | #endif
|
| 951 |
|
| 952 | #ifndef atomic_try_cmpxchg_relaxed
|
| 953 | static inline bool
|
| 954 | atomic_try_cmpxchg_relaxed(atomic_t *v, int *old, int new)
|
| 955 | {
|
| 956 | int r, o = *old;
|
| 957 | r = atomic_cmpxchg_relaxed(v, o, new);
|
| 958 | if (unlikely(r != o))
|
| 959 | *old = r;
|
| 960 | return likely(r == o);
|
| 961 | }
|
| 962 | #define atomic_try_cmpxchg_relaxed atomic_try_cmpxchg_relaxed
|
| 963 | #endif
|
| 964 |
|
| 965 | #else
|
| 966 |
|
| 967 | #ifndef atomic_try_cmpxchg_acquire
|
| 968 | static inline bool
|
| 969 | atomic_try_cmpxchg_acquire(atomic_t *v, int *old, int new)
|
| 970 | {
|
| 971 | bool ret = atomic_try_cmpxchg_relaxed(v, old, new);
|
| 972 | __atomic_acquire_fence();
|
| 973 | return ret;
|
| 974 | }
|
| 975 | #define atomic_try_cmpxchg_acquire atomic_try_cmpxchg_acquire
|
| 976 | #endif
|
| 977 |
|
| 978 | #ifndef atomic_try_cmpxchg_release
|
| 979 | static inline bool
|
| 980 | atomic_try_cmpxchg_release(atomic_t *v, int *old, int new)
|
| 981 | {
|
| 982 | __atomic_release_fence();
|
| 983 | return atomic_try_cmpxchg_relaxed(v, old, new);
|
| 984 | }
|
| 985 | #define atomic_try_cmpxchg_release atomic_try_cmpxchg_release
|
| 986 | #endif
|
| 987 |
|
| 988 | #ifndef atomic_try_cmpxchg
|
| 989 | static inline bool
|
| 990 | atomic_try_cmpxchg(atomic_t *v, int *old, int new)
|
| 991 | {
|
| 992 | bool ret;
|
| 993 | __atomic_pre_full_fence();
|
| 994 | ret = atomic_try_cmpxchg_relaxed(v, old, new);
|
| 995 | __atomic_post_full_fence();
|
| 996 | return ret;
|
| 997 | }
|
| 998 | #define atomic_try_cmpxchg atomic_try_cmpxchg
|
| 999 | #endif
|
| 1000 |
|
| 1001 | #endif
|
| 1002 |
|
| 1003 | #ifndef atomic_sub_and_test
|
| 1004 | |
| 1005 | * atomic_sub_and_test - subtract value from variable and test result
|
| 1006 | * @i: integer value to subtract
|
| 1007 | * @v: pointer of type atomic_t
|
| 1008 | *
|
| 1009 | * Atomically subtracts @i from @v and returns
|
| 1010 | * true if the result is zero, or false for all
|
| 1011 | * other cases.
|
| 1012 |
|
| 1013 | static inline bool
|
| 1014 | atomic_sub_and_test(int i, atomic_t *v)
|
| 1015 | {
|
| 1016 | return atomic_sub_return(i, v) == 0;
|
| 1017 | }
|
| 1018 | #define atomic_sub_and_test atomic_sub_and_test
|
| 1019 | #endif
|
| 1020 |
|
| 1021 | #ifndef atomic_dec_and_test
|
| 1022 | |
| 1023 | * atomic_dec_and_test - decrement and test
|
| 1024 | * @v: pointer of type atomic_t
|
| 1025 | *
|
| 1026 | * Atomically decrements @v by 1 and
|
| 1027 | * returns true if the result is 0, or false for all other
|
| 1028 | * cases.
|
| 1029 |
|
| 1030 | static inline bool
|
| 1031 | atomic_dec_and_test(atomic_t *v)
|
| 1032 | {
|
| 1033 | return atomic_dec_return(v) == 0;
|
| 1034 | }
|
| 1035 | #define atomic_dec_and_test atomic_dec_and_test
|
| 1036 | #endif
|
| 1037 |
|
| 1038 | #ifndef atomic_inc_and_test
|
| 1039 | |
| 1040 | * atomic_inc_and_test - increment and test
|
| 1041 | * @v: pointer of type atomic_t
|
| 1042 | *
|
| 1043 | * Atomically increments @v by 1
|
| 1044 | * and returns true if the result is zero, or false for all
|
| 1045 | * other cases.
|
| 1046 |
|
| 1047 | static inline bool
|
| 1048 | atomic_inc_and_test(atomic_t *v)
|
| 1049 | {
|
| 1050 | return atomic_inc_return(v) == 0;
|
| 1051 | }
|
| 1052 | #define atomic_inc_and_test atomic_inc_and_test
|
| 1053 | #endif
|
| 1054 |
|
| 1055 | #ifndef atomic_add_negative
|
| 1056 | |
| 1057 | * atomic_add_negative - add and test if negative
|
| 1058 | * @i: integer value to add
|
| 1059 | * @v: pointer of type atomic_t
|
| 1060 | *
|
| 1061 | * Atomically adds @i to @v and returns true
|
| 1062 | * if the result is negative, or false when
|
| 1063 | * result is greater than or equal to zero.
|
| 1064 |
|
| 1065 | static inline bool
|
| 1066 | atomic_add_negative(int i, atomic_t *v)
|
| 1067 | {
|
| 1068 | return atomic_add_return(i, v) < 0;
|
| 1069 | }
|
| 1070 | #define atomic_add_negative atomic_add_negative
|
| 1071 | #endif
|
| 1072 |
|
| 1073 | #ifndef atomic_fetch_add_unless
|
| 1074 | |
| 1075 | * atomic_fetch_add_unless - add unless the number is already a given value
|
| 1076 | * @v: pointer of type atomic_t
|
| 1077 | * @a: the amount to add to v...
|
| 1078 | * @u: ...unless v is equal to u.
|
| 1079 | *
|
| 1080 | * Atomically adds @a to @v, so long as @v was not already @u.
|
| 1081 | * Returns original value of @v
|
| 1082 |
|
| 1083 | static inline int
|
| 1084 | atomic_fetch_add_unless(atomic_t *v, int a, int u)
|
| 1085 | {
|
| 1086 | int c = atomic_read(v);
|
| 1087 |
|
| 1088 | do {
|
| 1089 | if (unlikely(c == u))
|
| 1090 | break;
|
| 1091 | } while (!atomic_try_cmpxchg(v, &c, c + a));
|
| 1092 |
|
| 1093 | return c;
|
| 1094 | }
|
| 1095 | #define atomic_fetch_add_unless atomic_fetch_add_unless
|
| 1096 | #endif
|
| 1097 |
|
| 1098 | #ifndef atomic_add_unless
|
| 1099 | |
| 1100 | * atomic_add_unless - add unless the number is already a given value
|
| 1101 | * @v: pointer of type atomic_t
|
| 1102 | * @a: the amount to add to v...
|
| 1103 | * @u: ...unless v is equal to u.
|
| 1104 | *
|
| 1105 | * Atomically adds @a to @v, if @v was not already @u.
|
| 1106 | * Returns true if the addition was done.
|
| 1107 |
|
| 1108 | static inline bool
|
| 1109 | atomic_add_unless(atomic_t *v, int a, int u)
|
| 1110 | {
|
| 1111 | return atomic_fetch_add_unless(v, a, u) != u;
|
| 1112 | }
|
| 1113 | #define atomic_add_unless atomic_add_unless
|
| 1114 | #endif
|
| 1115 |
|
| 1116 | #ifndef atomic_inc_not_zero
|
| 1117 | |
| 1118 | * atomic_inc_not_zero - increment unless the number is zero
|
| 1119 | * @v: pointer of type atomic_t
|
| 1120 | *
|
| 1121 | * Atomically increments @v by 1, if @v is non-zero.
|
| 1122 | * Returns true if the increment was done.
|
| 1123 |
|
| 1124 | static inline bool
|
| 1125 | atomic_inc_not_zero(atomic_t *v)
|
| 1126 | {
|
| 1127 | return atomic_add_unless(v, 1, 0);
|
| 1128 | }
|
| 1129 | #define atomic_inc_not_zero atomic_inc_not_zero
|
| 1130 | #endif
|
| 1131 |
|
| 1132 | #ifndef atomic_inc_unless_negative
|
| 1133 | static inline bool
|
| 1134 | atomic_inc_unless_negative(atomic_t *v)
|
| 1135 | {
|
| 1136 | int c = atomic_read(v);
|
| 1137 |
|
| 1138 | do {
|
| 1139 | if (unlikely(c < 0))
|
| 1140 | return false;
|
| 1141 | } while (!atomic_try_cmpxchg(v, &c, c + 1));
|
| 1142 |
|
| 1143 | return true;
|
| 1144 | }
|
| 1145 | #define atomic_inc_unless_negative atomic_inc_unless_negative
|
| 1146 | #endif
|
| 1147 |
|
| 1148 | #ifndef atomic_dec_unless_positive
|
| 1149 | static inline bool
|
| 1150 | atomic_dec_unless_positive(atomic_t *v)
|
| 1151 | {
|
| 1152 | int c = atomic_read(v);
|
| 1153 |
|
| 1154 | do {
|
| 1155 | if (unlikely(c > 0))
|
| 1156 | return false;
|
| 1157 | } while (!atomic_try_cmpxchg(v, &c, c - 1));
|
| 1158 |
|
| 1159 | return true;
|
| 1160 | }
|
| 1161 | #define atomic_dec_unless_positive atomic_dec_unless_positive
|
| 1162 | #endif
|
| 1163 |
|
| 1164 | #ifndef atomic_dec_if_positive
|
| 1165 | static inline int
|
| 1166 | atomic_dec_if_positive(atomic_t *v)
|
| 1167 | {
|
| 1168 | int dec, c = atomic_read(v);
|
| 1169 |
|
| 1170 | do {
|
| 1171 | dec = c - 1;
|
| 1172 | if (unlikely(dec < 0))
|
| 1173 | break;
|
| 1174 | } while (!atomic_try_cmpxchg(v, &c, dec));
|
| 1175 |
|
| 1176 | return dec;
|
| 1177 | }
|
| 1178 | #define atomic_dec_if_positive atomic_dec_if_positive
|
| 1179 | #endif
|
| 1180 |
|
| 1181 | #define atomic_cond_read_acquire(v, c) smp_cond_load_acquire(&(v)->counter, (c))
|
| 1182 | #define atomic_cond_read_relaxed(v, c) smp_cond_load_relaxed(&(v)->counter, (c))
|
| 1183 |
|
| 1184 | #ifdef CONFIG_GENERIC_ATOMIC64
|
| 1185 | #include <asm-generic/atomic64.h>
|
| 1186 | #endif
|
| 1187 |
|
| 1188 | #ifndef atomic64_read_acquire
|
| 1189 | static inline s64
|
| 1190 | atomic64_read_acquire(const atomic64_t *v)
|
| 1191 | {
|
| 1192 | return smp_load_acquire(&(v)->counter);
|
| 1193 | }
|
| 1194 | #define atomic64_read_acquire atomic64_read_acquire
|
| 1195 | #endif
|
| 1196 |
|
| 1197 | #ifndef atomic64_set_release
|
| 1198 | static inline void
|
| 1199 | atomic64_set_release(atomic64_t *v, s64 i)
|
| 1200 | {
|
| 1201 | smp_store_release(&(v)->counter, i);
|
| 1202 | }
|
| 1203 | #define atomic64_set_release atomic64_set_release
|
| 1204 | #endif
|
| 1205 |
|
| 1206 | #ifndef atomic64_add_return_relaxed
|
| 1207 | #define atomic64_add_return_acquire atomic64_add_return
|
| 1208 | #define atomic64_add_return_release atomic64_add_return
|
| 1209 | #define atomic64_add_return_relaxed atomic64_add_return
|
| 1210 | #else
|
| 1211 |
|
| 1212 | #ifndef atomic64_add_return_acquire
|
| 1213 | static inline s64
|
| 1214 | atomic64_add_return_acquire(s64 i, atomic64_t *v)
|
| 1215 | {
|
| 1216 | s64 ret = atomic64_add_return_relaxed(i, v);
|
| 1217 | __atomic_acquire_fence();
|
| 1218 | return ret;
|
| 1219 | }
|
| 1220 | #define atomic64_add_return_acquire atomic64_add_return_acquire
|
| 1221 | #endif
|
| 1222 |
|
| 1223 | #ifndef atomic64_add_return_release
|
| 1224 | static inline s64
|
| 1225 | atomic64_add_return_release(s64 i, atomic64_t *v)
|
| 1226 | {
|
| 1227 | __atomic_release_fence();
|
| 1228 | return atomic64_add_return_relaxed(i, v);
|
| 1229 | }
|
| 1230 | #define atomic64_add_return_release atomic64_add_return_release
|
| 1231 | #endif
|
| 1232 |
|
| 1233 | #ifndef atomic64_add_return
|
| 1234 | static inline s64
|
| 1235 | atomic64_add_return(s64 i, atomic64_t *v)
|
| 1236 | {
|
| 1237 | s64 ret;
|
| 1238 | __atomic_pre_full_fence();
|
| 1239 | ret = atomic64_add_return_relaxed(i, v);
|
| 1240 | __atomic_post_full_fence();
|
| 1241 | return ret;
|
| 1242 | }
|
| 1243 | #define atomic64_add_return atomic64_add_return
|
| 1244 | #endif
|
| 1245 |
|
| 1246 | #endif
|
| 1247 |
|
| 1248 | #ifndef atomic64_fetch_add_relaxed
|
| 1249 | #define atomic64_fetch_add_acquire atomic64_fetch_add
|
| 1250 | #define atomic64_fetch_add_release atomic64_fetch_add
|
| 1251 | #define atomic64_fetch_add_relaxed atomic64_fetch_add
|
| 1252 | #else
|
| 1253 |
|
| 1254 | #ifndef atomic64_fetch_add_acquire
|
| 1255 | static inline s64
|
| 1256 | atomic64_fetch_add_acquire(s64 i, atomic64_t *v)
|
| 1257 | {
|
| 1258 | s64 ret = atomic64_fetch_add_relaxed(i, v);
|
| 1259 | __atomic_acquire_fence();
|
| 1260 | return ret;
|
| 1261 | }
|
| 1262 | #define atomic64_fetch_add_acquire atomic64_fetch_add_acquire
|
| 1263 | #endif
|
| 1264 |
|
| 1265 | #ifndef atomic64_fetch_add_release
|
| 1266 | static inline s64
|
| 1267 | atomic64_fetch_add_release(s64 i, atomic64_t *v)
|
| 1268 | {
|
| 1269 | __atomic_release_fence();
|
| 1270 | return atomic64_fetch_add_relaxed(i, v);
|
| 1271 | }
|
| 1272 | #define atomic64_fetch_add_release atomic64_fetch_add_release
|
| 1273 | #endif
|
| 1274 |
|
| 1275 | #ifndef atomic64_fetch_add
|
| 1276 | static inline s64
|
| 1277 | atomic64_fetch_add(s64 i, atomic64_t *v)
|
| 1278 | {
|
| 1279 | s64 ret;
|
| 1280 | __atomic_pre_full_fence();
|
| 1281 | ret = atomic64_fetch_add_relaxed(i, v);
|
| 1282 | __atomic_post_full_fence();
|
| 1283 | return ret;
|
| 1284 | }
|
| 1285 | #define atomic64_fetch_add atomic64_fetch_add
|
| 1286 | #endif
|
| 1287 |
|
| 1288 | #endif
|
| 1289 |
|
| 1290 | #ifndef atomic64_sub_return_relaxed
|
| 1291 | #define atomic64_sub_return_acquire atomic64_sub_return
|
| 1292 | #define atomic64_sub_return_release atomic64_sub_return
|
| 1293 | #define atomic64_sub_return_relaxed atomic64_sub_return
|
| 1294 | #else
|
| 1295 |
|
| 1296 | #ifndef atomic64_sub_return_acquire
|
| 1297 | static inline s64
|
| 1298 | atomic64_sub_return_acquire(s64 i, atomic64_t *v)
|
| 1299 | {
|
| 1300 | s64 ret = atomic64_sub_return_relaxed(i, v);
|
| 1301 | __atomic_acquire_fence();
|
| 1302 | return ret;
|
| 1303 | }
|
| 1304 | #define atomic64_sub_return_acquire atomic64_sub_return_acquire
|
| 1305 | #endif
|
| 1306 |
|
| 1307 | #ifndef atomic64_sub_return_release
|
| 1308 | static inline s64
|
| 1309 | atomic64_sub_return_release(s64 i, atomic64_t *v)
|
| 1310 | {
|
| 1311 | __atomic_release_fence();
|
| 1312 | return atomic64_sub_return_relaxed(i, v);
|
| 1313 | }
|
| 1314 | #define atomic64_sub_return_release atomic64_sub_return_release
|
| 1315 | #endif
|
| 1316 |
|
| 1317 | #ifndef atomic64_sub_return
|
| 1318 | static inline s64
|
| 1319 | atomic64_sub_return(s64 i, atomic64_t *v)
|
| 1320 | {
|
| 1321 | s64 ret;
|
| 1322 | __atomic_pre_full_fence();
|
| 1323 | ret = atomic64_sub_return_relaxed(i, v);
|
| 1324 | __atomic_post_full_fence();
|
| 1325 | return ret;
|
| 1326 | }
|
| 1327 | #define atomic64_sub_return atomic64_sub_return
|
| 1328 | #endif
|
| 1329 |
|
| 1330 | #endif
|
| 1331 |
|
| 1332 | #ifndef atomic64_fetch_sub_relaxed
|
| 1333 | #define atomic64_fetch_sub_acquire atomic64_fetch_sub
|
| 1334 | #define atomic64_fetch_sub_release atomic64_fetch_sub
|
| 1335 | #define atomic64_fetch_sub_relaxed atomic64_fetch_sub
|
| 1336 | #else
|
| 1337 |
|
| 1338 | #ifndef atomic64_fetch_sub_acquire
|
| 1339 | static inline s64
|
| 1340 | atomic64_fetch_sub_acquire(s64 i, atomic64_t *v)
|
| 1341 | {
|
| 1342 | s64 ret = atomic64_fetch_sub_relaxed(i, v);
|
| 1343 | __atomic_acquire_fence();
|
| 1344 | return ret;
|
| 1345 | }
|
| 1346 | #define atomic64_fetch_sub_acquire atomic64_fetch_sub_acquire
|
| 1347 | #endif
|
| 1348 |
|
| 1349 | #ifndef atomic64_fetch_sub_release
|
| 1350 | static inline s64
|
| 1351 | atomic64_fetch_sub_release(s64 i, atomic64_t *v)
|
| 1352 | {
|
| 1353 | __atomic_release_fence();
|
| 1354 | return atomic64_fetch_sub_relaxed(i, v);
|
| 1355 | }
|
| 1356 | #define atomic64_fetch_sub_release atomic64_fetch_sub_release
|
| 1357 | #endif
|
| 1358 |
|
| 1359 | #ifndef atomic64_fetch_sub
|
| 1360 | static inline s64
|
| 1361 | atomic64_fetch_sub(s64 i, atomic64_t *v)
|
| 1362 | {
|
| 1363 | s64 ret;
|
| 1364 | __atomic_pre_full_fence();
|
| 1365 | ret = atomic64_fetch_sub_relaxed(i, v);
|
| 1366 | __atomic_post_full_fence();
|
| 1367 | return ret;
|
| 1368 | }
|
| 1369 | #define atomic64_fetch_sub atomic64_fetch_sub
|
| 1370 | #endif
|
| 1371 |
|
| 1372 | #endif
|
| 1373 |
|
| 1374 | #ifndef atomic64_inc
|
| 1375 | static inline void
|
| 1376 | atomic64_inc(atomic64_t *v)
|
| 1377 | {
|
| 1378 | atomic64_add(1, v);
|
| 1379 | }
|
| 1380 | #define atomic64_inc atomic64_inc
|
| 1381 | #endif
|
| 1382 |
|
| 1383 | #ifndef atomic64_inc_return_relaxed
|
| 1384 | #ifdef atomic64_inc_return
|
| 1385 | #define atomic64_inc_return_acquire atomic64_inc_return
|
| 1386 | #define atomic64_inc_return_release atomic64_inc_return
|
| 1387 | #define atomic64_inc_return_relaxed atomic64_inc_return
|
| 1388 | #endif
|
| 1389 |
|
| 1390 | #ifndef atomic64_inc_return
|
| 1391 | static inline s64
|
| 1392 | atomic64_inc_return(atomic64_t *v)
|
| 1393 | {
|
| 1394 | return atomic64_add_return(1, v);
|
| 1395 | }
|
| 1396 | #define atomic64_inc_return atomic64_inc_return
|
| 1397 | #endif
|
| 1398 |
|
| 1399 | #ifndef atomic64_inc_return_acquire
|
| 1400 | static inline s64
|
| 1401 | atomic64_inc_return_acquire(atomic64_t *v)
|
| 1402 | {
|
| 1403 | return atomic64_add_return_acquire(1, v);
|
| 1404 | }
|
| 1405 | #define atomic64_inc_return_acquire atomic64_inc_return_acquire
|
| 1406 | #endif
|
| 1407 |
|
| 1408 | #ifndef atomic64_inc_return_release
|
| 1409 | static inline s64
|
| 1410 | atomic64_inc_return_release(atomic64_t *v)
|
| 1411 | {
|
| 1412 | return atomic64_add_return_release(1, v);
|
| 1413 | }
|
| 1414 | #define atomic64_inc_return_release atomic64_inc_return_release
|
| 1415 | #endif
|
| 1416 |
|
| 1417 | #ifndef atomic64_inc_return_relaxed
|
| 1418 | static inline s64
|
| 1419 | atomic64_inc_return_relaxed(atomic64_t *v)
|
| 1420 | {
|
| 1421 | return atomic64_add_return_relaxed(1, v);
|
| 1422 | }
|
| 1423 | #define atomic64_inc_return_relaxed atomic64_inc_return_relaxed
|
| 1424 | #endif
|
| 1425 |
|
| 1426 | #else
|
| 1427 |
|
| 1428 | #ifndef atomic64_inc_return_acquire
|
| 1429 | static inline s64
|
| 1430 | atomic64_inc_return_acquire(atomic64_t *v)
|
| 1431 | {
|
| 1432 | s64 ret = atomic64_inc_return_relaxed(v);
|
| 1433 | __atomic_acquire_fence();
|
| 1434 | return ret;
|
| 1435 | }
|
| 1436 | #define atomic64_inc_return_acquire atomic64_inc_return_acquire
|
| 1437 | #endif
|
| 1438 |
|
| 1439 | #ifndef atomic64_inc_return_release
|
| 1440 | static inline s64
|
| 1441 | atomic64_inc_return_release(atomic64_t *v)
|
| 1442 | {
|
| 1443 | __atomic_release_fence();
|
| 1444 | return atomic64_inc_return_relaxed(v);
|
| 1445 | }
|
| 1446 | #define atomic64_inc_return_release atomic64_inc_return_release
|
| 1447 | #endif
|
| 1448 |
|
| 1449 | #ifndef atomic64_inc_return
|
| 1450 | static inline s64
|
| 1451 | atomic64_inc_return(atomic64_t *v)
|
| 1452 | {
|
| 1453 | s64 ret;
|
| 1454 | __atomic_pre_full_fence();
|
| 1455 | ret = atomic64_inc_return_relaxed(v);
|
| 1456 | __atomic_post_full_fence();
|
| 1457 | return ret;
|
| 1458 | }
|
| 1459 | #define atomic64_inc_return atomic64_inc_return
|
| 1460 | #endif
|
| 1461 |
|
| 1462 | #endif
|
| 1463 |
|
| 1464 | #ifndef atomic64_fetch_inc_relaxed
|
| 1465 | #ifdef atomic64_fetch_inc
|
| 1466 | #define atomic64_fetch_inc_acquire atomic64_fetch_inc
|
| 1467 | #define atomic64_fetch_inc_release atomic64_fetch_inc
|
| 1468 | #define atomic64_fetch_inc_relaxed atomic64_fetch_inc
|
| 1469 | #endif
|
| 1470 |
|
| 1471 | #ifndef atomic64_fetch_inc
|
| 1472 | static inline s64
|
| 1473 | atomic64_fetch_inc(atomic64_t *v)
|
| 1474 | {
|
| 1475 | return atomic64_fetch_add(1, v);
|
| 1476 | }
|
| 1477 | #define atomic64_fetch_inc atomic64_fetch_inc
|
| 1478 | #endif
|
| 1479 |
|
| 1480 | #ifndef atomic64_fetch_inc_acquire
|
| 1481 | static inline s64
|
| 1482 | atomic64_fetch_inc_acquire(atomic64_t *v)
|
| 1483 | {
|
| 1484 | return atomic64_fetch_add_acquire(1, v);
|
| 1485 | }
|
| 1486 | #define atomic64_fetch_inc_acquire atomic64_fetch_inc_acquire
|
| 1487 | #endif
|
| 1488 |
|
| 1489 | #ifndef atomic64_fetch_inc_release
|
| 1490 | static inline s64
|
| 1491 | atomic64_fetch_inc_release(atomic64_t *v)
|
| 1492 | {
|
| 1493 | return atomic64_fetch_add_release(1, v);
|
| 1494 | }
|
| 1495 | #define atomic64_fetch_inc_release atomic64_fetch_inc_release
|
| 1496 | #endif
|
| 1497 |
|
| 1498 | #ifndef atomic64_fetch_inc_relaxed
|
| 1499 | static inline s64
|
| 1500 | atomic64_fetch_inc_relaxed(atomic64_t *v)
|
| 1501 | {
|
| 1502 | return atomic64_fetch_add_relaxed(1, v);
|
| 1503 | }
|
| 1504 | #define atomic64_fetch_inc_relaxed atomic64_fetch_inc_relaxed
|
| 1505 | #endif
|
| 1506 |
|
| 1507 | #else
|
| 1508 |
|
| 1509 | #ifndef atomic64_fetch_inc_acquire
|
| 1510 | static inline s64
|
| 1511 | atomic64_fetch_inc_acquire(atomic64_t *v)
|
| 1512 | {
|
| 1513 | s64 ret = atomic64_fetch_inc_relaxed(v);
|
| 1514 | __atomic_acquire_fence();
|
| 1515 | return ret;
|
| 1516 | }
|
| 1517 | #define atomic64_fetch_inc_acquire atomic64_fetch_inc_acquire
|
| 1518 | #endif
|
| 1519 |
|
| 1520 | #ifndef atomic64_fetch_inc_release
|
| 1521 | static inline s64
|
| 1522 | atomic64_fetch_inc_release(atomic64_t *v)
|
| 1523 | {
|
| 1524 | __atomic_release_fence();
|
| 1525 | return atomic64_fetch_inc_relaxed(v);
|
| 1526 | }
|
| 1527 | #define atomic64_fetch_inc_release atomic64_fetch_inc_release
|
| 1528 | #endif
|
| 1529 |
|
| 1530 | #ifndef atomic64_fetch_inc
|
| 1531 | static inline s64
|
| 1532 | atomic64_fetch_inc(atomic64_t *v)
|
| 1533 | {
|
| 1534 | s64 ret;
|
| 1535 | __atomic_pre_full_fence();
|
| 1536 | ret = atomic64_fetch_inc_relaxed(v);
|
| 1537 | __atomic_post_full_fence();
|
| 1538 | return ret;
|
| 1539 | }
|
| 1540 | #define atomic64_fetch_inc atomic64_fetch_inc
|
| 1541 | #endif
|
| 1542 |
|
| 1543 | #endif
|
| 1544 |
|
| 1545 | #ifndef atomic64_dec
|
| 1546 | static inline void
|
| 1547 | atomic64_dec(atomic64_t *v)
|
| 1548 | {
|
| 1549 | atomic64_sub(1, v);
|
| 1550 | }
|
| 1551 | #define atomic64_dec atomic64_dec
|
| 1552 | #endif
|
| 1553 |
|
| 1554 | #ifndef atomic64_dec_return_relaxed
|
| 1555 | #ifdef atomic64_dec_return
|
| 1556 | #define atomic64_dec_return_acquire atomic64_dec_return
|
| 1557 | #define atomic64_dec_return_release atomic64_dec_return
|
| 1558 | #define atomic64_dec_return_relaxed atomic64_dec_return
|
| 1559 | #endif
|
| 1560 |
|
| 1561 | #ifndef atomic64_dec_return
|
| 1562 | static inline s64
|
| 1563 | atomic64_dec_return(atomic64_t *v)
|
| 1564 | {
|
| 1565 | return atomic64_sub_return(1, v);
|
| 1566 | }
|
| 1567 | #define atomic64_dec_return atomic64_dec_return
|
| 1568 | #endif
|
| 1569 |
|
| 1570 | #ifndef atomic64_dec_return_acquire
|
| 1571 | static inline s64
|
| 1572 | atomic64_dec_return_acquire(atomic64_t *v)
|
| 1573 | {
|
| 1574 | return atomic64_sub_return_acquire(1, v);
|
| 1575 | }
|
| 1576 | #define atomic64_dec_return_acquire atomic64_dec_return_acquire
|
| 1577 | #endif
|
| 1578 |
|
| 1579 | #ifndef atomic64_dec_return_release
|
| 1580 | static inline s64
|
| 1581 | atomic64_dec_return_release(atomic64_t *v)
|
| 1582 | {
|
| 1583 | return atomic64_sub_return_release(1, v);
|
| 1584 | }
|
| 1585 | #define atomic64_dec_return_release atomic64_dec_return_release
|
| 1586 | #endif
|
| 1587 |
|
| 1588 | #ifndef atomic64_dec_return_relaxed
|
| 1589 | static inline s64
|
| 1590 | atomic64_dec_return_relaxed(atomic64_t *v)
|
| 1591 | {
|
| 1592 | return atomic64_sub_return_relaxed(1, v);
|
| 1593 | }
|
| 1594 | #define atomic64_dec_return_relaxed atomic64_dec_return_relaxed
|
| 1595 | #endif
|
| 1596 |
|
| 1597 | #else
|
| 1598 |
|
| 1599 | #ifndef atomic64_dec_return_acquire
|
| 1600 | static inline s64
|
| 1601 | atomic64_dec_return_acquire(atomic64_t *v)
|
| 1602 | {
|
| 1603 | s64 ret = atomic64_dec_return_relaxed(v);
|
| 1604 | __atomic_acquire_fence();
|
| 1605 | return ret;
|
| 1606 | }
|
| 1607 | #define atomic64_dec_return_acquire atomic64_dec_return_acquire
|
| 1608 | #endif
|
| 1609 |
|
| 1610 | #ifndef atomic64_dec_return_release
|
| 1611 | static inline s64
|
| 1612 | atomic64_dec_return_release(atomic64_t *v)
|
| 1613 | {
|
| 1614 | __atomic_release_fence();
|
| 1615 | return atomic64_dec_return_relaxed(v);
|
| 1616 | }
|
| 1617 | #define atomic64_dec_return_release atomic64_dec_return_release
|
| 1618 | #endif
|
| 1619 |
|
| 1620 | #ifndef atomic64_dec_return
|
| 1621 | static inline s64
|
| 1622 | atomic64_dec_return(atomic64_t *v)
|
| 1623 | {
|
| 1624 | s64 ret;
|
| 1625 | __atomic_pre_full_fence();
|
| 1626 | ret = atomic64_dec_return_relaxed(v);
|
| 1627 | __atomic_post_full_fence();
|
| 1628 | return ret;
|
| 1629 | }
|
| 1630 | #define atomic64_dec_return atomic64_dec_return
|
| 1631 | #endif
|
| 1632 |
|
| 1633 | #endif
|
| 1634 |
|
| 1635 | #ifndef atomic64_fetch_dec_relaxed
|
| 1636 | #ifdef atomic64_fetch_dec
|
| 1637 | #define atomic64_fetch_dec_acquire atomic64_fetch_dec
|
| 1638 | #define atomic64_fetch_dec_release atomic64_fetch_dec
|
| 1639 | #define atomic64_fetch_dec_relaxed atomic64_fetch_dec
|
| 1640 | #endif
|
| 1641 |
|
| 1642 | #ifndef atomic64_fetch_dec
|
| 1643 | static inline s64
|
| 1644 | atomic64_fetch_dec(atomic64_t *v)
|
| 1645 | {
|
| 1646 | return atomic64_fetch_sub(1, v);
|
| 1647 | }
|
| 1648 | #define atomic64_fetch_dec atomic64_fetch_dec
|
| 1649 | #endif
|
| 1650 |
|
| 1651 | #ifndef atomic64_fetch_dec_acquire
|
| 1652 | static inline s64
|
| 1653 | atomic64_fetch_dec_acquire(atomic64_t *v)
|
| 1654 | {
|
| 1655 | return atomic64_fetch_sub_acquire(1, v);
|
| 1656 | }
|
| 1657 | #define atomic64_fetch_dec_acquire atomic64_fetch_dec_acquire
|
| 1658 | #endif
|
| 1659 |
|
| 1660 | #ifndef atomic64_fetch_dec_release
|
| 1661 | static inline s64
|
| 1662 | atomic64_fetch_dec_release(atomic64_t *v)
|
| 1663 | {
|
| 1664 | return atomic64_fetch_sub_release(1, v);
|
| 1665 | }
|
| 1666 | #define atomic64_fetch_dec_release atomic64_fetch_dec_release
|
| 1667 | #endif
|
| 1668 |
|
| 1669 | #ifndef atomic64_fetch_dec_relaxed
|
| 1670 | static inline s64
|
| 1671 | atomic64_fetch_dec_relaxed(atomic64_t *v)
|
| 1672 | {
|
| 1673 | return atomic64_fetch_sub_relaxed(1, v);
|
| 1674 | }
|
| 1675 | #define atomic64_fetch_dec_relaxed atomic64_fetch_dec_relaxed
|
| 1676 | #endif
|
| 1677 |
|
| 1678 | #else
|
| 1679 |
|
| 1680 | #ifndef atomic64_fetch_dec_acquire
|
| 1681 | static inline s64
|
| 1682 | atomic64_fetch_dec_acquire(atomic64_t *v)
|
| 1683 | {
|
| 1684 | s64 ret = atomic64_fetch_dec_relaxed(v);
|
| 1685 | __atomic_acquire_fence();
|
| 1686 | return ret;
|
| 1687 | }
|
| 1688 | #define atomic64_fetch_dec_acquire atomic64_fetch_dec_acquire
|
| 1689 | #endif
|
| 1690 |
|
| 1691 | #ifndef atomic64_fetch_dec_release
|
| 1692 | static inline s64
|
| 1693 | atomic64_fetch_dec_release(atomic64_t *v)
|
| 1694 | {
|
| 1695 | __atomic_release_fence();
|
| 1696 | return atomic64_fetch_dec_relaxed(v);
|
| 1697 | }
|
| 1698 | #define atomic64_fetch_dec_release atomic64_fetch_dec_release
|
| 1699 | #endif
|
| 1700 |
|
| 1701 | #ifndef atomic64_fetch_dec
|
| 1702 | static inline s64
|
| 1703 | atomic64_fetch_dec(atomic64_t *v)
|
| 1704 | {
|
| 1705 | s64 ret;
|
| 1706 | __atomic_pre_full_fence();
|
| 1707 | ret = atomic64_fetch_dec_relaxed(v);
|
| 1708 | __atomic_post_full_fence();
|
| 1709 | return ret;
|
| 1710 | }
|
| 1711 | #define atomic64_fetch_dec atomic64_fetch_dec
|
| 1712 | #endif
|
| 1713 |
|
| 1714 | #endif
|
| 1715 |
|
| 1716 | #ifndef atomic64_fetch_and_relaxed
|
| 1717 | #define atomic64_fetch_and_acquire atomic64_fetch_and
|
| 1718 | #define atomic64_fetch_and_release atomic64_fetch_and
|
| 1719 | #define atomic64_fetch_and_relaxed atomic64_fetch_and
|
| 1720 | #else
|
| 1721 |
|
| 1722 | #ifndef atomic64_fetch_and_acquire
|
| 1723 | static inline s64
|
| 1724 | atomic64_fetch_and_acquire(s64 i, atomic64_t *v)
|
| 1725 | {
|
| 1726 | s64 ret = atomic64_fetch_and_relaxed(i, v);
|
| 1727 | __atomic_acquire_fence();
|
| 1728 | return ret;
|
| 1729 | }
|
| 1730 | #define atomic64_fetch_and_acquire atomic64_fetch_and_acquire
|
| 1731 | #endif
|
| 1732 |
|
| 1733 | #ifndef atomic64_fetch_and_release
|
| 1734 | static inline s64
|
| 1735 | atomic64_fetch_and_release(s64 i, atomic64_t *v)
|
| 1736 | {
|
| 1737 | __atomic_release_fence();
|
| 1738 | return atomic64_fetch_and_relaxed(i, v);
|
| 1739 | }
|
| 1740 | #define atomic64_fetch_and_release atomic64_fetch_and_release
|
| 1741 | #endif
|
| 1742 |
|
| 1743 | #ifndef atomic64_fetch_and
|
| 1744 | static inline s64
|
| 1745 | atomic64_fetch_and(s64 i, atomic64_t *v)
|
| 1746 | {
|
| 1747 | s64 ret;
|
| 1748 | __atomic_pre_full_fence();
|
| 1749 | ret = atomic64_fetch_and_relaxed(i, v);
|
| 1750 | __atomic_post_full_fence();
|
| 1751 | return ret;
|
| 1752 | }
|
| 1753 | #define atomic64_fetch_and atomic64_fetch_and
|
| 1754 | #endif
|
| 1755 |
|
| 1756 | #endif
|
| 1757 |
|
| 1758 | #ifndef atomic64_andnot
|
| 1759 | static inline void
|
| 1760 | atomic64_andnot(s64 i, atomic64_t *v)
|
| 1761 | {
|
| 1762 | atomic64_and(~i, v);
|
| 1763 | }
|
| 1764 | #define atomic64_andnot atomic64_andnot
|
| 1765 | #endif
|
| 1766 |
|
| 1767 | #ifndef atomic64_fetch_andnot_relaxed
|
| 1768 | #ifdef atomic64_fetch_andnot
|
| 1769 | #define atomic64_fetch_andnot_acquire atomic64_fetch_andnot
|
| 1770 | #define atomic64_fetch_andnot_release atomic64_fetch_andnot
|
| 1771 | #define atomic64_fetch_andnot_relaxed atomic64_fetch_andnot
|
| 1772 | #endif
|
| 1773 |
|
| 1774 | #ifndef atomic64_fetch_andnot
|
| 1775 | static inline s64
|
| 1776 | atomic64_fetch_andnot(s64 i, atomic64_t *v)
|
| 1777 | {
|
| 1778 | return atomic64_fetch_and(~i, v);
|
| 1779 | }
|
| 1780 | #define atomic64_fetch_andnot atomic64_fetch_andnot
|
| 1781 | #endif
|
| 1782 |
|
| 1783 | #ifndef atomic64_fetch_andnot_acquire
|
| 1784 | static inline s64
|
| 1785 | atomic64_fetch_andnot_acquire(s64 i, atomic64_t *v)
|
| 1786 | {
|
| 1787 | return atomic64_fetch_and_acquire(~i, v);
|
| 1788 | }
|
| 1789 | #define atomic64_fetch_andnot_acquire atomic64_fetch_andnot_acquire
|
| 1790 | #endif
|
| 1791 |
|
| 1792 | #ifndef atomic64_fetch_andnot_release
|
| 1793 | static inline s64
|
| 1794 | atomic64_fetch_andnot_release(s64 i, atomic64_t *v)
|
| 1795 | {
|
| 1796 | return atomic64_fetch_and_release(~i, v);
|
| 1797 | }
|
| 1798 | #define atomic64_fetch_andnot_release atomic64_fetch_andnot_release
|
| 1799 | #endif
|
| 1800 |
|
| 1801 | #ifndef atomic64_fetch_andnot_relaxed
|
| 1802 | static inline s64
|
| 1803 | atomic64_fetch_andnot_relaxed(s64 i, atomic64_t *v)
|
| 1804 | {
|
| 1805 | return atomic64_fetch_and_relaxed(~i, v);
|
| 1806 | }
|
| 1807 | #define atomic64_fetch_andnot_relaxed atomic64_fetch_andnot_relaxed
|
| 1808 | #endif
|
| 1809 |
|
| 1810 | #else
|
| 1811 |
|
| 1812 | #ifndef atomic64_fetch_andnot_acquire
|
| 1813 | static inline s64
|
| 1814 | atomic64_fetch_andnot_acquire(s64 i, atomic64_t *v)
|
| 1815 | {
|
| 1816 | s64 ret = atomic64_fetch_andnot_relaxed(i, v);
|
| 1817 | __atomic_acquire_fence();
|
| 1818 | return ret;
|
| 1819 | }
|
| 1820 | #define atomic64_fetch_andnot_acquire atomic64_fetch_andnot_acquire
|
| 1821 | #endif
|
| 1822 |
|
| 1823 | #ifndef atomic64_fetch_andnot_release
|
| 1824 | static inline s64
|
| 1825 | atomic64_fetch_andnot_release(s64 i, atomic64_t *v)
|
| 1826 | {
|
| 1827 | __atomic_release_fence();
|
| 1828 | return atomic64_fetch_andnot_relaxed(i, v);
|
| 1829 | }
|
| 1830 | #define atomic64_fetch_andnot_release atomic64_fetch_andnot_release
|
| 1831 | #endif
|
| 1832 |
|
| 1833 | #ifndef atomic64_fetch_andnot
|
| 1834 | static inline s64
|
| 1835 | atomic64_fetch_andnot(s64 i, atomic64_t *v)
|
| 1836 | {
|
| 1837 | s64 ret;
|
| 1838 | __atomic_pre_full_fence();
|
| 1839 | ret = atomic64_fetch_andnot_relaxed(i, v);
|
| 1840 | __atomic_post_full_fence();
|
| 1841 | return ret;
|
| 1842 | }
|
| 1843 | #define atomic64_fetch_andnot atomic64_fetch_andnot
|
| 1844 | #endif
|
| 1845 |
|
| 1846 | #endif
|
| 1847 |
|
| 1848 | #ifndef atomic64_fetch_or_relaxed
|
| 1849 | #define atomic64_fetch_or_acquire atomic64_fetch_or
|
| 1850 | #define atomic64_fetch_or_release atomic64_fetch_or
|
| 1851 | #define atomic64_fetch_or_relaxed atomic64_fetch_or
|
| 1852 | #else
|
| 1853 |
|
| 1854 | #ifndef atomic64_fetch_or_acquire
|
| 1855 | static inline s64
|
| 1856 | atomic64_fetch_or_acquire(s64 i, atomic64_t *v)
|
| 1857 | {
|
| 1858 | s64 ret = atomic64_fetch_or_relaxed(i, v);
|
| 1859 | __atomic_acquire_fence();
|
| 1860 | return ret;
|
| 1861 | }
|
| 1862 | #define atomic64_fetch_or_acquire atomic64_fetch_or_acquire
|
| 1863 | #endif
|
| 1864 |
|
| 1865 | #ifndef atomic64_fetch_or_release
|
| 1866 | static inline s64
|
| 1867 | atomic64_fetch_or_release(s64 i, atomic64_t *v)
|
| 1868 | {
|
| 1869 | __atomic_release_fence();
|
| 1870 | return atomic64_fetch_or_relaxed(i, v);
|
| 1871 | }
|
| 1872 | #define atomic64_fetch_or_release atomic64_fetch_or_release
|
| 1873 | #endif
|
| 1874 |
|
| 1875 | #ifndef atomic64_fetch_or
|
| 1876 | static inline s64
|
| 1877 | atomic64_fetch_or(s64 i, atomic64_t *v)
|
| 1878 | {
|
| 1879 | s64 ret;
|
| 1880 | __atomic_pre_full_fence();
|
| 1881 | ret = atomic64_fetch_or_relaxed(i, v);
|
| 1882 | __atomic_post_full_fence();
|
| 1883 | return ret;
|
| 1884 | }
|
| 1885 | #define atomic64_fetch_or atomic64_fetch_or
|
| 1886 | #endif
|
| 1887 |
|
| 1888 | #endif
|
| 1889 |
|
| 1890 | #ifndef atomic64_fetch_xor_relaxed
|
| 1891 | #define atomic64_fetch_xor_acquire atomic64_fetch_xor
|
| 1892 | #define atomic64_fetch_xor_release atomic64_fetch_xor
|
| 1893 | #define atomic64_fetch_xor_relaxed atomic64_fetch_xor
|
| 1894 | #else
|
| 1895 |
|
| 1896 | #ifndef atomic64_fetch_xor_acquire
|
| 1897 | static inline s64
|
| 1898 | atomic64_fetch_xor_acquire(s64 i, atomic64_t *v)
|
| 1899 | {
|
| 1900 | s64 ret = atomic64_fetch_xor_relaxed(i, v);
|
| 1901 | __atomic_acquire_fence();
|
| 1902 | return ret;
|
| 1903 | }
|
| 1904 | #define atomic64_fetch_xor_acquire atomic64_fetch_xor_acquire
|
| 1905 | #endif
|
| 1906 |
|
| 1907 | #ifndef atomic64_fetch_xor_release
|
| 1908 | static inline s64
|
| 1909 | atomic64_fetch_xor_release(s64 i, atomic64_t *v)
|
| 1910 | {
|
| 1911 | __atomic_release_fence();
|
| 1912 | return atomic64_fetch_xor_relaxed(i, v);
|
| 1913 | }
|
| 1914 | #define atomic64_fetch_xor_release atomic64_fetch_xor_release
|
| 1915 | #endif
|
| 1916 |
|
| 1917 | #ifndef atomic64_fetch_xor
|
| 1918 | static inline s64
|
| 1919 | atomic64_fetch_xor(s64 i, atomic64_t *v)
|
| 1920 | {
|
| 1921 | s64 ret;
|
| 1922 | __atomic_pre_full_fence();
|
| 1923 | ret = atomic64_fetch_xor_relaxed(i, v);
|
| 1924 | __atomic_post_full_fence();
|
| 1925 | return ret;
|
| 1926 | }
|
| 1927 | #define atomic64_fetch_xor atomic64_fetch_xor
|
| 1928 | #endif
|
| 1929 |
|
| 1930 | #endif
|
| 1931 |
|
| 1932 | #ifndef atomic64_xchg_relaxed
|
| 1933 | #define atomic64_xchg_acquire atomic64_xchg
|
| 1934 | #define atomic64_xchg_release atomic64_xchg
|
| 1935 | #define atomic64_xchg_relaxed atomic64_xchg
|
| 1936 | #else
|
| 1937 |
|
| 1938 | #ifndef atomic64_xchg_acquire
|
| 1939 | static inline s64
|
| 1940 | atomic64_xchg_acquire(atomic64_t *v, s64 i)
|
| 1941 | {
|
| 1942 | s64 ret = atomic64_xchg_relaxed(v, i);
|
| 1943 | __atomic_acquire_fence();
|
| 1944 | return ret;
|
| 1945 | }
|
| 1946 | #define atomic64_xchg_acquire atomic64_xchg_acquire
|
| 1947 | #endif
|
| 1948 |
|
| 1949 | #ifndef atomic64_xchg_release
|
| 1950 | static inline s64
|
| 1951 | atomic64_xchg_release(atomic64_t *v, s64 i)
|
| 1952 | {
|
| 1953 | __atomic_release_fence();
|
| 1954 | return atomic64_xchg_relaxed(v, i);
|
| 1955 | }
|
| 1956 | #define atomic64_xchg_release atomic64_xchg_release
|
| 1957 | #endif
|
| 1958 |
|
| 1959 | #ifndef atomic64_xchg
|
| 1960 | static inline s64
|
| 1961 | atomic64_xchg(atomic64_t *v, s64 i)
|
| 1962 | {
|
| 1963 | s64 ret;
|
| 1964 | __atomic_pre_full_fence();
|
| 1965 | ret = atomic64_xchg_relaxed(v, i);
|
| 1966 | __atomic_post_full_fence();
|
| 1967 | return ret;
|
| 1968 | }
|
| 1969 | #define atomic64_xchg atomic64_xchg
|
| 1970 | #endif
|
| 1971 |
|
| 1972 | #endif
|
| 1973 |
|
| 1974 | #ifndef atomic64_cmpxchg_relaxed
|
| 1975 | #define atomic64_cmpxchg_acquire atomic64_cmpxchg
|
| 1976 | #define atomic64_cmpxchg_release atomic64_cmpxchg
|
| 1977 | #define atomic64_cmpxchg_relaxed atomic64_cmpxchg
|
| 1978 | #else
|
| 1979 |
|
| 1980 | #ifndef atomic64_cmpxchg_acquire
|
| 1981 | static inline s64
|
| 1982 | atomic64_cmpxchg_acquire(atomic64_t *v, s64 old, s64 new)
|
| 1983 | {
|
| 1984 | s64 ret = atomic64_cmpxchg_relaxed(v, old, new);
|
| 1985 | __atomic_acquire_fence();
|
| 1986 | return ret;
|
| 1987 | }
|
| 1988 | #define atomic64_cmpxchg_acquire atomic64_cmpxchg_acquire
|
| 1989 | #endif
|
| 1990 |
|
| 1991 | #ifndef atomic64_cmpxchg_release
|
| 1992 | static inline s64
|
| 1993 | atomic64_cmpxchg_release(atomic64_t *v, s64 old, s64 new)
|
| 1994 | {
|
| 1995 | __atomic_release_fence();
|
| 1996 | return atomic64_cmpxchg_relaxed(v, old, new);
|
| 1997 | }
|
| 1998 | #define atomic64_cmpxchg_release atomic64_cmpxchg_release
|
| 1999 | #endif
|
| 2000 |
|
| 2001 | #ifndef atomic64_cmpxchg
|
| 2002 | static inline s64
|
| 2003 | atomic64_cmpxchg(atomic64_t *v, s64 old, s64 new)
|
| 2004 | {
|
| 2005 | s64 ret;
|
| 2006 | __atomic_pre_full_fence();
|
| 2007 | ret = atomic64_cmpxchg_relaxed(v, old, new);
|
| 2008 | __atomic_post_full_fence();
|
| 2009 | return ret;
|
| 2010 | }
|
| 2011 | #define atomic64_cmpxchg atomic64_cmpxchg
|
| 2012 | #endif
|
| 2013 |
|
| 2014 | #endif
|
| 2015 |
|
| 2016 | #ifndef atomic64_try_cmpxchg_relaxed
|
| 2017 | #ifdef atomic64_try_cmpxchg
|
| 2018 | #define atomic64_try_cmpxchg_acquire atomic64_try_cmpxchg
|
| 2019 | #define atomic64_try_cmpxchg_release atomic64_try_cmpxchg
|
| 2020 | #define atomic64_try_cmpxchg_relaxed atomic64_try_cmpxchg
|
| 2021 | #endif
|
| 2022 |
|
| 2023 | #ifndef atomic64_try_cmpxchg
|
| 2024 | static inline bool
|
| 2025 | atomic64_try_cmpxchg(atomic64_t *v, s64 *old, s64 new)
|
| 2026 | {
|
| 2027 | s64 r, o = *old;
|
| 2028 | r = atomic64_cmpxchg(v, o, new);
|
| 2029 | if (unlikely(r != o))
|
| 2030 | *old = r;
|
| 2031 | return likely(r == o);
|
| 2032 | }
|
| 2033 | #define atomic64_try_cmpxchg atomic64_try_cmpxchg
|
| 2034 | #endif
|
| 2035 |
|
| 2036 | #ifndef atomic64_try_cmpxchg_acquire
|
| 2037 | static inline bool
|
| 2038 | atomic64_try_cmpxchg_acquire(atomic64_t *v, s64 *old, s64 new)
|
| 2039 | {
|
| 2040 | s64 r, o = *old;
|
| 2041 | r = atomic64_cmpxchg_acquire(v, o, new);
|
| 2042 | if (unlikely(r != o))
|
| 2043 | *old = r;
|
| 2044 | return likely(r == o);
|
| 2045 | }
|
| 2046 | #define atomic64_try_cmpxchg_acquire atomic64_try_cmpxchg_acquire
|
| 2047 | #endif
|
| 2048 |
|
| 2049 | #ifndef atomic64_try_cmpxchg_release
|
| 2050 | static inline bool
|
| 2051 | atomic64_try_cmpxchg_release(atomic64_t *v, s64 *old, s64 new)
|
| 2052 | {
|
| 2053 | s64 r, o = *old;
|
| 2054 | r = atomic64_cmpxchg_release(v, o, new);
|
| 2055 | if (unlikely(r != o))
|
| 2056 | *old = r;
|
| 2057 | return likely(r == o);
|
| 2058 | }
|
| 2059 | #define atomic64_try_cmpxchg_release atomic64_try_cmpxchg_release
|
| 2060 | #endif
|
| 2061 |
|
| 2062 | #ifndef atomic64_try_cmpxchg_relaxed
|
| 2063 | static inline bool
|
| 2064 | atomic64_try_cmpxchg_relaxed(atomic64_t *v, s64 *old, s64 new)
|
| 2065 | {
|
| 2066 | s64 r, o = *old;
|
| 2067 | r = atomic64_cmpxchg_relaxed(v, o, new);
|
| 2068 | if (unlikely(r != o))
|
| 2069 | *old = r;
|
| 2070 | return likely(r == o);
|
| 2071 | }
|
| 2072 | #define atomic64_try_cmpxchg_relaxed atomic64_try_cmpxchg_relaxed
|
| 2073 | #endif
|
| 2074 |
|
| 2075 | #else
|
| 2076 |
|
| 2077 | #ifndef atomic64_try_cmpxchg_acquire
|
| 2078 | static inline bool
|
| 2079 | atomic64_try_cmpxchg_acquire(atomic64_t *v, s64 *old, s64 new)
|
| 2080 | {
|
| 2081 | bool ret = atomic64_try_cmpxchg_relaxed(v, old, new);
|
| 2082 | __atomic_acquire_fence();
|
| 2083 | return ret;
|
| 2084 | }
|
| 2085 | #define atomic64_try_cmpxchg_acquire atomic64_try_cmpxchg_acquire
|
| 2086 | #endif
|
| 2087 |
|
| 2088 | #ifndef atomic64_try_cmpxchg_release
|
| 2089 | static inline bool
|
| 2090 | atomic64_try_cmpxchg_release(atomic64_t *v, s64 *old, s64 new)
|
| 2091 | {
|
| 2092 | __atomic_release_fence();
|
| 2093 | return atomic64_try_cmpxchg_relaxed(v, old, new);
|
| 2094 | }
|
| 2095 | #define atomic64_try_cmpxchg_release atomic64_try_cmpxchg_release
|
| 2096 | #endif
|
| 2097 |
|
| 2098 | #ifndef atomic64_try_cmpxchg
|
| 2099 | static inline bool
|
| 2100 | atomic64_try_cmpxchg(atomic64_t *v, s64 *old, s64 new)
|
| 2101 | {
|
| 2102 | bool ret;
|
| 2103 | __atomic_pre_full_fence();
|
| 2104 | ret = atomic64_try_cmpxchg_relaxed(v, old, new);
|
| 2105 | __atomic_post_full_fence();
|
| 2106 | return ret;
|
| 2107 | }
|
| 2108 | #define atomic64_try_cmpxchg atomic64_try_cmpxchg
|
| 2109 | #endif
|
| 2110 |
|
| 2111 | #endif
|
| 2112 |
|
| 2113 | #ifndef atomic64_sub_and_test
|
| 2114 | |
| 2115 | * atomic64_sub_and_test - subtract value from variable and test result
|
| 2116 | * @i: integer value to subtract
|
| 2117 | * @v: pointer of type atomic64_t
|
| 2118 | *
|
| 2119 | * Atomically subtracts @i from @v and returns
|
| 2120 | * true if the result is zero, or false for all
|
| 2121 | * other cases.
|
| 2122 |
|
| 2123 | static inline bool
|
| 2124 | atomic64_sub_and_test(s64 i, atomic64_t *v)
|
| 2125 | {
|
| 2126 | return atomic64_sub_return(i, v) == 0;
|
| 2127 | }
|
| 2128 | #define atomic64_sub_and_test atomic64_sub_and_test
|
| 2129 | #endif
|
| 2130 |
|
| 2131 | #ifndef atomic64_dec_and_test
|
| 2132 | |
| 2133 | * atomic64_dec_and_test - decrement and test
|
| 2134 | * @v: pointer of type atomic64_t
|
| 2135 | *
|
| 2136 | * Atomically decrements @v by 1 and
|
| 2137 | * returns true if the result is 0, or false for all other
|
| 2138 | * cases.
|
| 2139 |
|
| 2140 | static inline bool
|
| 2141 | atomic64_dec_and_test(atomic64_t *v)
|
| 2142 | {
|
| 2143 | return atomic64_dec_return(v) == 0;
|
| 2144 | }
|
| 2145 | #define atomic64_dec_and_test atomic64_dec_and_test
|
| 2146 | #endif
|
| 2147 |
|
| 2148 | #ifndef atomic64_inc_and_test
|
| 2149 | |
| 2150 | * atomic64_inc_and_test - increment and test
|
| 2151 | * @v: pointer of type atomic64_t
|
| 2152 | *
|
| 2153 | * Atomically increments @v by 1
|
| 2154 | * and returns true if the result is zero, or false for all
|
| 2155 | * other cases.
|
| 2156 |
|
| 2157 | static inline bool
|
| 2158 | atomic64_inc_and_test(atomic64_t *v)
|
| 2159 | {
|
| 2160 | return atomic64_inc_return(v) == 0;
|
| 2161 | }
|
| 2162 | #define atomic64_inc_and_test atomic64_inc_and_test
|
| 2163 | #endif
|
| 2164 |
|
| 2165 | #ifndef atomic64_add_negative
|
| 2166 | |
| 2167 | * atomic64_add_negative - add and test if negative
|
| 2168 | * @i: integer value to add
|
| 2169 | * @v: pointer of type atomic64_t
|
| 2170 | *
|
| 2171 | * Atomically adds @i to @v and returns true
|
| 2172 | * if the result is negative, or false when
|
| 2173 | * result is greater than or equal to zero.
|
| 2174 |
|
| 2175 | static inline bool
|
| 2176 | atomic64_add_negative(s64 i, atomic64_t *v)
|
| 2177 | {
|
| 2178 | return atomic64_add_return(i, v) < 0;
|
| 2179 | }
|
| 2180 | #define atomic64_add_negative atomic64_add_negative
|
| 2181 | #endif
|
| 2182 |
|
| 2183 | #ifndef atomic64_fetch_add_unless
|
| 2184 | |
| 2185 | * atomic64_fetch_add_unless - add unless the number is already a given value
|
| 2186 | * @v: pointer of type atomic64_t
|
| 2187 | * @a: the amount to add to v...
|
| 2188 | * @u: ...unless v is equal to u.
|
| 2189 | *
|
| 2190 | * Atomically adds @a to @v, so long as @v was not already @u.
|
| 2191 | * Returns original value of @v
|
| 2192 |
|
| 2193 | static inline s64
|
| 2194 | atomic64_fetch_add_unless(atomic64_t *v, s64 a, s64 u)
|
| 2195 | {
|
| 2196 | s64 c = atomic64_read(v);
|
| 2197 |
|
| 2198 | do {
|
| 2199 | if (unlikely(c == u))
|
| 2200 | break;
|
| 2201 | } while (!atomic64_try_cmpxchg(v, &c, c + a));
|
| 2202 |
|
| 2203 | return c;
|
| 2204 | }
|
| 2205 | #define atomic64_fetch_add_unless atomic64_fetch_add_unless
|
| 2206 | #endif
|
| 2207 |
|
| 2208 | #ifndef atomic64_add_unless
|
| 2209 | |
| 2210 | * atomic64_add_unless - add unless the number is already a given value
|
| 2211 | * @v: pointer of type atomic64_t
|
| 2212 | * @a: the amount to add to v...
|
| 2213 | * @u: ...unless v is equal to u.
|
| 2214 | *
|
| 2215 | * Atomically adds @a to @v, if @v was not already @u.
|
| 2216 | * Returns true if the addition was done.
|
| 2217 |
|
| 2218 | static inline bool
|
| 2219 | atomic64_add_unless(atomic64_t *v, s64 a, s64 u)
|
| 2220 | {
|
| 2221 | return atomic64_fetch_add_unless(v, a, u) != u;
|
| 2222 | }
|
| 2223 | #define atomic64_add_unless atomic64_add_unless
|
| 2224 | #endif
|
| 2225 |
|
| 2226 | #ifndef atomic64_inc_not_zero
|
| 2227 | |
| 2228 | * atomic64_inc_not_zero - increment unless the number is zero
|
| 2229 | * @v: pointer of type atomic64_t
|
| 2230 | *
|
| 2231 | * Atomically increments @v by 1, if @v is non-zero.
|
| 2232 | * Returns true if the increment was done.
|
| 2233 |
|
| 2234 | static inline bool
|
| 2235 | atomic64_inc_not_zero(atomic64_t *v)
|
| 2236 | {
|
| 2237 | return atomic64_add_unless(v, 1, 0);
|
| 2238 | }
|
| 2239 | #define atomic64_inc_not_zero atomic64_inc_not_zero
|
| 2240 | #endif
|
| 2241 |
|
| 2242 | #ifndef atomic64_inc_unless_negative
|
| 2243 | static inline bool
|
| 2244 | atomic64_inc_unless_negative(atomic64_t *v)
|
| 2245 | {
|
| 2246 | s64 c = atomic64_read(v);
|
| 2247 |
|
| 2248 | do {
|
| 2249 | if (unlikely(c < 0))
|
| 2250 | return false;
|
| 2251 | } while (!atomic64_try_cmpxchg(v, &c, c + 1));
|
| 2252 |
|
| 2253 | return true;
|
| 2254 | }
|
| 2255 | #define atomic64_inc_unless_negative atomic64_inc_unless_negative
|
| 2256 | #endif
|
| 2257 |
|
| 2258 | #ifndef atomic64_dec_unless_positive
|
| 2259 | static inline bool
|
| 2260 | atomic64_dec_unless_positive(atomic64_t *v)
|
| 2261 | {
|
| 2262 | s64 c = atomic64_read(v);
|
| 2263 |
|
| 2264 | do {
|
| 2265 | if (unlikely(c > 0))
|
| 2266 | return false;
|
| 2267 | } while (!atomic64_try_cmpxchg(v, &c, c - 1));
|
| 2268 |
|
| 2269 | return true;
|
| 2270 | }
|
| 2271 | #define atomic64_dec_unless_positive atomic64_dec_unless_positive
|
| 2272 | #endif
|
| 2273 |
|
| 2274 | #ifndef atomic64_dec_if_positive
|
| 2275 | static inline s64
|
| 2276 | atomic64_dec_if_positive(atomic64_t *v)
|
| 2277 | {
|
| 2278 | s64 dec, c = atomic64_read(v);
|
| 2279 |
|
| 2280 | do {
|
| 2281 | dec = c - 1;
|
| 2282 | if (unlikely(dec < 0))
|
| 2283 | break;
|
| 2284 | } while (!atomic64_try_cmpxchg(v, &c, dec));
|
| 2285 |
|
| 2286 | return dec;
|
| 2287 | }
|
| 2288 | #define atomic64_dec_if_positive atomic64_dec_if_positive
|
| 2289 | #endif
|
| 2290 |
|
| 2291 | #define atomic64_cond_read_acquire(v, c) smp_cond_load_acquire(&(v)->counter, (c))
|
| 2292 | #define atomic64_cond_read_relaxed(v, c) smp_cond_load_relaxed(&(v)->counter, (c))
|
| 2293 |
|
| 2294 | #endif
|
| 2295 | |