diff options
Diffstat (limited to 'lib/atomic64.c')
-rw-r--r-- | lib/atomic64.c | 66 |
1 files changed, 33 insertions, 33 deletions
diff --git a/lib/atomic64.c b/lib/atomic64.c index e12ae0dd08a8..3975470caf4f 100644 --- a/lib/atomic64.c +++ b/lib/atomic64.c | |||
@@ -29,11 +29,11 @@ | |||
29 | * Ensure each lock is in a separate cacheline. | 29 | * Ensure each lock is in a separate cacheline. |
30 | */ | 30 | */ |
31 | static union { | 31 | static union { |
32 | spinlock_t lock; | 32 | raw_spinlock_t lock; |
33 | char pad[L1_CACHE_BYTES]; | 33 | char pad[L1_CACHE_BYTES]; |
34 | } atomic64_lock[NR_LOCKS] __cacheline_aligned_in_smp; | 34 | } atomic64_lock[NR_LOCKS] __cacheline_aligned_in_smp; |
35 | 35 | ||
36 | static inline spinlock_t *lock_addr(const atomic64_t *v) | 36 | static inline raw_spinlock_t *lock_addr(const atomic64_t *v) |
37 | { | 37 | { |
38 | unsigned long addr = (unsigned long) v; | 38 | unsigned long addr = (unsigned long) v; |
39 | 39 | ||
@@ -45,12 +45,12 @@ static inline spinlock_t *lock_addr(const atomic64_t *v) | |||
45 | long long atomic64_read(const atomic64_t *v) | 45 | long long atomic64_read(const atomic64_t *v) |
46 | { | 46 | { |
47 | unsigned long flags; | 47 | unsigned long flags; |
48 | spinlock_t *lock = lock_addr(v); | 48 | raw_spinlock_t *lock = lock_addr(v); |
49 | long long val; | 49 | long long val; |
50 | 50 | ||
51 | spin_lock_irqsave(lock, flags); | 51 | raw_spin_lock_irqsave(lock, flags); |
52 | val = v->counter; | 52 | val = v->counter; |
53 | spin_unlock_irqrestore(lock, flags); | 53 | raw_spin_unlock_irqrestore(lock, flags); |
54 | return val; | 54 | return val; |
55 | } | 55 | } |
56 | EXPORT_SYMBOL(atomic64_read); | 56 | EXPORT_SYMBOL(atomic64_read); |
@@ -58,34 +58,34 @@ EXPORT_SYMBOL(atomic64_read); | |||
58 | void atomic64_set(atomic64_t *v, long long i) | 58 | void atomic64_set(atomic64_t *v, long long i) |
59 | { | 59 | { |
60 | unsigned long flags; | 60 | unsigned long flags; |
61 | spinlock_t *lock = lock_addr(v); | 61 | raw_spinlock_t *lock = lock_addr(v); |
62 | 62 | ||
63 | spin_lock_irqsave(lock, flags); | 63 | raw_spin_lock_irqsave(lock, flags); |
64 | v->counter = i; | 64 | v->counter = i; |
65 | spin_unlock_irqrestore(lock, flags); | 65 | raw_spin_unlock_irqrestore(lock, flags); |
66 | } | 66 | } |
67 | EXPORT_SYMBOL(atomic64_set); | 67 | EXPORT_SYMBOL(atomic64_set); |
68 | 68 | ||
69 | void atomic64_add(long long a, atomic64_t *v) | 69 | void atomic64_add(long long a, atomic64_t *v) |
70 | { | 70 | { |
71 | unsigned long flags; | 71 | unsigned long flags; |
72 | spinlock_t *lock = lock_addr(v); | 72 | raw_spinlock_t *lock = lock_addr(v); |
73 | 73 | ||
74 | spin_lock_irqsave(lock, flags); | 74 | raw_spin_lock_irqsave(lock, flags); |
75 | v->counter += a; | 75 | v->counter += a; |
76 | spin_unlock_irqrestore(lock, flags); | 76 | raw_spin_unlock_irqrestore(lock, flags); |
77 | } | 77 | } |
78 | EXPORT_SYMBOL(atomic64_add); | 78 | EXPORT_SYMBOL(atomic64_add); |
79 | 79 | ||
80 | long long atomic64_add_return(long long a, atomic64_t *v) | 80 | long long atomic64_add_return(long long a, atomic64_t *v) |
81 | { | 81 | { |
82 | unsigned long flags; | 82 | unsigned long flags; |
83 | spinlock_t *lock = lock_addr(v); | 83 | raw_spinlock_t *lock = lock_addr(v); |
84 | long long val; | 84 | long long val; |
85 | 85 | ||
86 | spin_lock_irqsave(lock, flags); | 86 | raw_spin_lock_irqsave(lock, flags); |
87 | val = v->counter += a; | 87 | val = v->counter += a; |
88 | spin_unlock_irqrestore(lock, flags); | 88 | raw_spin_unlock_irqrestore(lock, flags); |
89 | return val; | 89 | return val; |
90 | } | 90 | } |
91 | EXPORT_SYMBOL(atomic64_add_return); | 91 | EXPORT_SYMBOL(atomic64_add_return); |
@@ -93,23 +93,23 @@ EXPORT_SYMBOL(atomic64_add_return); | |||
93 | void atomic64_sub(long long a, atomic64_t *v) | 93 | void atomic64_sub(long long a, atomic64_t *v) |
94 | { | 94 | { |
95 | unsigned long flags; | 95 | unsigned long flags; |
96 | spinlock_t *lock = lock_addr(v); | 96 | raw_spinlock_t *lock = lock_addr(v); |
97 | 97 | ||
98 | spin_lock_irqsave(lock, flags); | 98 | raw_spin_lock_irqsave(lock, flags); |
99 | v->counter -= a; | 99 | v->counter -= a; |
100 | spin_unlock_irqrestore(lock, flags); | 100 | raw_spin_unlock_irqrestore(lock, flags); |
101 | } | 101 | } |
102 | EXPORT_SYMBOL(atomic64_sub); | 102 | EXPORT_SYMBOL(atomic64_sub); |
103 | 103 | ||
104 | long long atomic64_sub_return(long long a, atomic64_t *v) | 104 | long long atomic64_sub_return(long long a, atomic64_t *v) |
105 | { | 105 | { |
106 | unsigned long flags; | 106 | unsigned long flags; |
107 | spinlock_t *lock = lock_addr(v); | 107 | raw_spinlock_t *lock = lock_addr(v); |
108 | long long val; | 108 | long long val; |
109 | 109 | ||
110 | spin_lock_irqsave(lock, flags); | 110 | raw_spin_lock_irqsave(lock, flags); |
111 | val = v->counter -= a; | 111 | val = v->counter -= a; |
112 | spin_unlock_irqrestore(lock, flags); | 112 | raw_spin_unlock_irqrestore(lock, flags); |
113 | return val; | 113 | return val; |
114 | } | 114 | } |
115 | EXPORT_SYMBOL(atomic64_sub_return); | 115 | EXPORT_SYMBOL(atomic64_sub_return); |
@@ -117,14 +117,14 @@ EXPORT_SYMBOL(atomic64_sub_return); | |||
117 | long long atomic64_dec_if_positive(atomic64_t *v) | 117 | long long atomic64_dec_if_positive(atomic64_t *v) |
118 | { | 118 | { |
119 | unsigned long flags; | 119 | unsigned long flags; |
120 | spinlock_t *lock = lock_addr(v); | 120 | raw_spinlock_t *lock = lock_addr(v); |
121 | long long val; | 121 | long long val; |
122 | 122 | ||
123 | spin_lock_irqsave(lock, flags); | 123 | raw_spin_lock_irqsave(lock, flags); |
124 | val = v->counter - 1; | 124 | val = v->counter - 1; |
125 | if (val >= 0) | 125 | if (val >= 0) |
126 | v->counter = val; | 126 | v->counter = val; |
127 | spin_unlock_irqrestore(lock, flags); | 127 | raw_spin_unlock_irqrestore(lock, flags); |
128 | return val; | 128 | return val; |
129 | } | 129 | } |
130 | EXPORT_SYMBOL(atomic64_dec_if_positive); | 130 | EXPORT_SYMBOL(atomic64_dec_if_positive); |
@@ -132,14 +132,14 @@ EXPORT_SYMBOL(atomic64_dec_if_positive); | |||
132 | long long atomic64_cmpxchg(atomic64_t *v, long long o, long long n) | 132 | long long atomic64_cmpxchg(atomic64_t *v, long long o, long long n) |
133 | { | 133 | { |
134 | unsigned long flags; | 134 | unsigned long flags; |
135 | spinlock_t *lock = lock_addr(v); | 135 | raw_spinlock_t *lock = lock_addr(v); |
136 | long long val; | 136 | long long val; |
137 | 137 | ||
138 | spin_lock_irqsave(lock, flags); | 138 | raw_spin_lock_irqsave(lock, flags); |
139 | val = v->counter; | 139 | val = v->counter; |
140 | if (val == o) | 140 | if (val == o) |
141 | v->counter = n; | 141 | v->counter = n; |
142 | spin_unlock_irqrestore(lock, flags); | 142 | raw_spin_unlock_irqrestore(lock, flags); |
143 | return val; | 143 | return val; |
144 | } | 144 | } |
145 | EXPORT_SYMBOL(atomic64_cmpxchg); | 145 | EXPORT_SYMBOL(atomic64_cmpxchg); |
@@ -147,13 +147,13 @@ EXPORT_SYMBOL(atomic64_cmpxchg); | |||
147 | long long atomic64_xchg(atomic64_t *v, long long new) | 147 | long long atomic64_xchg(atomic64_t *v, long long new) |
148 | { | 148 | { |
149 | unsigned long flags; | 149 | unsigned long flags; |
150 | spinlock_t *lock = lock_addr(v); | 150 | raw_spinlock_t *lock = lock_addr(v); |
151 | long long val; | 151 | long long val; |
152 | 152 | ||
153 | spin_lock_irqsave(lock, flags); | 153 | raw_spin_lock_irqsave(lock, flags); |
154 | val = v->counter; | 154 | val = v->counter; |
155 | v->counter = new; | 155 | v->counter = new; |
156 | spin_unlock_irqrestore(lock, flags); | 156 | raw_spin_unlock_irqrestore(lock, flags); |
157 | return val; | 157 | return val; |
158 | } | 158 | } |
159 | EXPORT_SYMBOL(atomic64_xchg); | 159 | EXPORT_SYMBOL(atomic64_xchg); |
@@ -161,15 +161,15 @@ EXPORT_SYMBOL(atomic64_xchg); | |||
161 | int atomic64_add_unless(atomic64_t *v, long long a, long long u) | 161 | int atomic64_add_unless(atomic64_t *v, long long a, long long u) |
162 | { | 162 | { |
163 | unsigned long flags; | 163 | unsigned long flags; |
164 | spinlock_t *lock = lock_addr(v); | 164 | raw_spinlock_t *lock = lock_addr(v); |
165 | int ret = 0; | 165 | int ret = 0; |
166 | 166 | ||
167 | spin_lock_irqsave(lock, flags); | 167 | raw_spin_lock_irqsave(lock, flags); |
168 | if (v->counter != u) { | 168 | if (v->counter != u) { |
169 | v->counter += a; | 169 | v->counter += a; |
170 | ret = 1; | 170 | ret = 1; |
171 | } | 171 | } |
172 | spin_unlock_irqrestore(lock, flags); | 172 | raw_spin_unlock_irqrestore(lock, flags); |
173 | return ret; | 173 | return ret; |
174 | } | 174 | } |
175 | EXPORT_SYMBOL(atomic64_add_unless); | 175 | EXPORT_SYMBOL(atomic64_add_unless); |
@@ -179,7 +179,7 @@ static int init_atomic64_lock(void) | |||
179 | int i; | 179 | int i; |
180 | 180 | ||
181 | for (i = 0; i < NR_LOCKS; ++i) | 181 | for (i = 0; i < NR_LOCKS; ++i) |
182 | spin_lock_init(&atomic64_lock[i].lock); | 182 | raw_spin_lock_init(&atomic64_lock[i].lock); |
183 | return 0; | 183 | return 0; |
184 | } | 184 | } |
185 | 185 | ||