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-rw-r--r--tools/memory-model/litmus-tests/SB+mbonceonces.litmus9
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diff --git a/tools/memory-model/litmus-tests/SB+mbonceonces.litmus b/tools/memory-model/litmus-tests/SB+mbonceonces.litmus
index b76caa5af1af..74b874ffa8da 100644
--- a/tools/memory-model/litmus-tests/SB+mbonceonces.litmus
+++ b/tools/memory-model/litmus-tests/SB+mbonceonces.litmus
@@ -1,5 +1,14 @@
C SB+mbonceonces
+(*
+ * Result: Never
+ *
+ * This litmus test demonstrates that full memory barriers suffice to
+ * order the store-buffering pattern, where each process writes to the
+ * variable that the preceding process reads. (Locking and RCU can also
+ * suffice, but not much else.)
+ *)
+
{}
P0(int *x, int *y)
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