diff options
| author | Richard Henderson | 2022-10-22 15:04:11 +0200 |
|---|---|---|
| committer | Richard Henderson | 2022-10-26 03:11:28 +0200 |
| commit | 7ed9e721cce2ccf6a1da22cd0e713c2a0d187457 (patch) | |
| tree | dc578f4b87dc2d4b55a60ef4aaff0c9e46ec1991 /include | |
| parent | include/qemu/atomic: Use qemu_build_assert (diff) | |
| download | qemu-7ed9e721cce2ccf6a1da22cd0e713c2a0d187457.tar.gz qemu-7ed9e721cce2ccf6a1da22cd0e713c2a0d187457.tar.xz qemu-7ed9e721cce2ccf6a1da22cd0e713c2a0d187457.zip | |
include/qemu/thread: Use qatomic_* functions
Use qatomic_*, which expands to __atomic_* in preference
to the "legacy" __sync_* functions.
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/qemu/thread.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/include/qemu/thread.h b/include/qemu/thread.h index af19f2b3fc..20641e5844 100644 --- a/include/qemu/thread.h +++ b/include/qemu/thread.h @@ -227,7 +227,7 @@ struct QemuSpin { static inline void qemu_spin_init(QemuSpin *spin) { - __sync_lock_release(&spin->value); + qatomic_set(&spin->value, 0); #ifdef CONFIG_TSAN __tsan_mutex_create(spin, __tsan_mutex_not_static); #endif @@ -246,7 +246,7 @@ static inline void qemu_spin_lock(QemuSpin *spin) #ifdef CONFIG_TSAN __tsan_mutex_pre_lock(spin, 0); #endif - while (unlikely(__sync_lock_test_and_set(&spin->value, true))) { + while (unlikely(qatomic_xchg(&spin->value, 1))) { while (qatomic_read(&spin->value)) { cpu_relax(); } @@ -261,7 +261,7 @@ static inline bool qemu_spin_trylock(QemuSpin *spin) #ifdef CONFIG_TSAN __tsan_mutex_pre_lock(spin, __tsan_mutex_try_lock); #endif - bool busy = __sync_lock_test_and_set(&spin->value, true); + bool busy = qatomic_xchg(&spin->value, true); #ifdef CONFIG_TSAN unsigned flags = __tsan_mutex_try_lock; flags |= busy ? __tsan_mutex_try_lock_failed : 0; @@ -280,7 +280,7 @@ static inline void qemu_spin_unlock(QemuSpin *spin) #ifdef CONFIG_TSAN __tsan_mutex_pre_unlock(spin, 0); #endif - __sync_lock_release(&spin->value); + qatomic_store_release(&spin->value, 0); #ifdef CONFIG_TSAN __tsan_mutex_post_unlock(spin, 0); #endif |