tools/memory-model: Add documentation of new litmus test

The litmus-tests/README file lacks any mention of the new litmus test ISA2+pooncelock+pooncelock+pombonce.litmus. This commit therefore adds a description of this test. Reported-by: Alan Stern <[email protected]> Signed-off-by: Paul E. McKenney <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
imcsk8 · Mar 10, 2018 · ff1fe5e · ff1fe5e
1 parent d095c12
commit ff1fe5e
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/tools/memory-model/litmus-tests/README b/tools/memory-model/litmus-tests/README
@@ -32,6 +32,12 @@ IRIW+poonceonces+OnceOnce.litmus
 	order of a pair of writes, where each write is to a different
 	variable by a different process?
 
+ISA2+pooncelock+pooncelock+pombonce.litmus
+	Tests whether the ordering provided by a lock-protected S
+	litmus test is visible to an external process whose accesses are
+	separated by smp_mb().	This addition of an external process to
+	S is otherwise known as ISA2.
+
 ISA2+poonceonces.litmus
 	As below, but with store-release replaced with WRITE_ONCE()
 	and load-acquire replaced with READ_ONCE().