svm_fifo rework to avoid contention on cursize

[vpp.git] / src / vppinfra / atomics.h

diff --git a/src/vppinfra/atomics.h b/src/vppinfra/atomics.h
index 6fe3af2..5444b6d 100644 (file)
--- a/src/vppinfra/atomics.h
+++ b/src/vppinfra/atomics.h
@@ -40,8 +40,11 @@
 #define clib_atomic_test_and_set(a) __sync_lock_test_and_set(a, 1)
 #define clib_atomic_release(a) __sync_lock_release(a)
 
+#define clib_atomic_fence_rel() __atomic_thread_fence(__ATOMIC_RELEASE);
+
 #define clib_atomic_load_acq_n(a) __atomic_load_n((a), __ATOMIC_ACQUIRE)
 #define clib_atomic_store_rel_n(a, b) __atomic_store_n ((a), (b), __ATOMIC_RELEASE)
+
 #define clib_atomic_swap_acq_n(a, b) __atomic_exchange_n ((a), (b), __ATOMIC_ACQUIRE)
 #define clib_atomic_swap_rel_n(a, b) __atomic_exchange_n ((a), (b), __ATOMIC_RELEASE)