From caf27215d1087f3ee77b1e6376b4bba7f80ecd65 Mon Sep 17 00:00:00 2001
From: Costa Tsaousis <costa@netdata.cloud>
Date: Fri, 29 Dec 2023 13:43:49 +0200
Subject: [PATCH] atomically load the metric reference count (#16687)

---
 database/engine/metric.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/database/engine/metric.c b/database/engine/metric.c
index 4ff080d5b6aa10..97829da82515c9 100644
--- a/database/engine/metric.c
+++ b/database/engine/metric.c
@@ -132,7 +132,7 @@ static inline time_t mrg_metric_get_first_time_s_smart(MRG *mrg __maybe_unused,
 
 static inline REFCOUNT metric_acquire(MRG *mrg __maybe_unused, METRIC *metric) {
     size_t partition = metric->partition;
-    REFCOUNT expected = metric->refcount;
+    REFCOUNT expected = __atomic_load_n(&metric->refcount, __ATOMIC_RELAXED);
     REFCOUNT refcount;
 
     do {
@@ -152,7 +152,7 @@ static inline REFCOUNT metric_acquire(MRG *mrg __maybe_unused, METRIC *metric) {
 
 static inline bool metric_release_and_can_be_deleted(MRG *mrg __maybe_unused, METRIC *metric) {
     size_t partition = metric->partition;
-    REFCOUNT expected = metric->refcount;
+    REFCOUNT expected = __atomic_load_n(&metric->refcount, __ATOMIC_RELAXED);
     REFCOUNT refcount;
 
     do {