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-rw-r--r--src/svm/svm_fifo.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/svm/svm_fifo.h b/src/svm/svm_fifo.h
index d7146ae1fb0..6c3940dfad5 100644
--- a/src/svm/svm_fifo.h
+++ b/src/svm/svm_fifo.h
@@ -179,12 +179,12 @@ svm_fifo_set_event (svm_fifo_t * f)
/**
* Unsets fifo event flag.
*
- * Also acts as a release barrier.
+ * Also acts as an acquire barrier.
*/
always_inline void
svm_fifo_unset_event (svm_fifo_t * f)
{
- clib_atomic_release (&f->has_event);
+ __atomic_exchange_n (&f->has_event, 0, __ATOMIC_ACQUIRE);
}
svm_fifo_t *svm_fifo_create (u32 data_size_in_bytes);