#define atomic_read(ptr) \
({ \
QEMU_BUILD_BUG_ON(sizeof(*ptr) > sizeof(void *)); \
- typeof_strip_qual(*ptr) _val; \
- __atomic_load(ptr, &_val, __ATOMIC_RELAXED); \
- _val; \
+ __atomic_load_n(ptr, __ATOMIC_RELAXED); \
})
#define atomic_set(ptr, i) do { \
QEMU_BUILD_BUG_ON(sizeof(*ptr) > sizeof(void *)); \
- typeof(*ptr) _val = (i); \
- __atomic_store(ptr, &_val, __ATOMIC_RELAXED); \
+ __atomic_store_n(ptr, i, __ATOMIC_RELAXED); \
} while(0)
/* See above: most compilers currently treat consume and acquire the
#define atomic_rcu_set(ptr, i) do { \
QEMU_BUILD_BUG_ON(sizeof(*ptr) > sizeof(void *)); \
- typeof(*ptr) _val = (i); \
- __atomic_store(ptr, &_val, __ATOMIC_RELEASE); \
+ __atomic_store_n(ptr, i, __ATOMIC_RELEASE); \
} while(0)
/* atomic_mb_read/set semantics map Java volatile variables. They are
#define atomic_mb_set(ptr, i) do { \
QEMU_BUILD_BUG_ON(sizeof(*ptr) > sizeof(void *)); \
- typeof(*ptr) _val = (i); \
smp_wmb(); \
- __atomic_store(ptr, &_val, __ATOMIC_RELAXED); \
+ __atomic_store_n(ptr, i, __ATOMIC_RELAXED); \
smp_mb(); \
} while(0)
#else
#define atomic_mb_set(ptr, i) do { \
QEMU_BUILD_BUG_ON(sizeof(*ptr) > sizeof(void *)); \
- typeof(*ptr) _val = (i); \
- __atomic_store(ptr, &_val, __ATOMIC_SEQ_CST); \
+ __atomic_store_n(ptr, i, __ATOMIC_SEQ_CST); \
} while(0)
#endif
#define atomic_xchg(ptr, i) ({ \
QEMU_BUILD_BUG_ON(sizeof(*ptr) > sizeof(void *)); \
- typeof_strip_qual(*ptr) _new = (i), _old; \
- __atomic_exchange(ptr, &_new, &_old, __ATOMIC_SEQ_CST); \
- _old; \
+ __atomic_exchange_n(ptr, i, __ATOMIC_SEQ_CST); \
})
/* Returns the eventual value, failed or not */
#define atomic_cmpxchg(ptr, old, new) \
({ \
QEMU_BUILD_BUG_ON(sizeof(*ptr) > sizeof(void *)); \
- typeof_strip_qual(*ptr) _old = (old), _new = (new); \
- __atomic_compare_exchange(ptr, &_old, &_new, false, \
+ typeof_strip_qual(*ptr) _old = (old); \
+ __atomic_compare_exchange_n(ptr, &_old, new, false, \
__ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST); \
_old; \
})