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Paul E. McKenney1c27b642018-01-18 19:58:55 -08001C MP+pooncerelease+poacquireonce
2
Paul E. McKenney8f325432018-02-20 15:25:04 -08003(*
4 * Result: Never
5 *
6 * This litmus test demonstrates that smp_store_release() and
7 * smp_load_acquire() provide sufficient ordering for the message-passing
8 * pattern.
9 *)
10
Paul E. McKenney1c27b642018-01-18 19:58:55 -080011{}
12
13P0(int *x, int *y)
14{
15 WRITE_ONCE(*x, 1);
16 smp_store_release(y, 1);
17}
18
19P1(int *x, int *y)
20{
21 int r0;
22 int r1;
23
24 r0 = smp_load_acquire(y);
25 r1 = READ_ONCE(*x);
26}
27
28exists (1:r0=1 /\ 1:r1=0)