1 files changed, 3 insertions, 1 deletions
diff --git a/database/rrd.h b/database/rrd.h
index ea211f64e..d64f5904a 100644
--- a/database/rrd.h
+++ b/database/rrd.h
@@ -891,9 +891,11 @@ struct rrdset {
     } alerts;
 
     struct {
+        SPINLOCK spinlock; // used only for cleanup
+        pid_t collector_tid;
+        bool set;
         uint32_t pos;
         uint32_t size;
-        uint32_t used;
         RRDDIM_ACQUIRED **rda;
     } pluginsd;