vls: multi-process and multi-threaded apps improvements

[vpp.git] / src / svm / svm_fifo.h

diff --git a/src/svm/svm_fifo.h b/src/svm/svm_fifo.h
index b0d38ed..07614b4 100644 (file)
--- a/src/svm/svm_fifo.h
+++ b/src/svm/svm_fifo.h
@@ -88,7 +88,7 @@ typedef struct _svm_fifo
   u32 ooos_newest;             /**< Last segment to have been updated */
   struct _svm_fifo *next;      /**< next in freelist/active chain */
   struct _svm_fifo *prev;      /**< prev in active chain */
-  u8 n_subscribers;
+  volatile u8 n_subscribers;
   u8 subscribers[SVM_FIFO_MAX_EVT_SUBSCRIBERS];
 
 #if SVM_FIFO_TRACE