X-Git-Url: https://git.lttng.org/?p=urcu.git;a=blobdiff_plain;f=urcu%2Farch%2Fs390.h;h=6dc09a3e76c9d48963a5ddc185f07bb84a4f3eae;hp=b1474d8c32f524b1309f2068754c1e0040ff296e;hb=33f0d0b1c3c9ee55e49b6f7bed146e483e3fd935;hpb=1b2c84f9d687784a9026da2eb231a4795bf3781a

diff --git a/urcu/arch/s390.h b/urcu/arch/s390.h
index b1474d8..6dc09a3 100644
--- a/urcu/arch/s390.h
+++ b/urcu/arch/s390.h
@@ -51,6 +51,14 @@ static inline cycles_t caa_get_cycles (void)
 	return cycles;
 }
 
+/*
+ * Define the membarrier system call number if not yet available in the
+ * system headers.
+ */
+#ifndef __NR_membarrier
+#define __NR_membarrier		356
+#endif
+
 #ifdef __cplusplus 
 }
 #endif