diff options
Diffstat (limited to 'tools/memory-model/litmus-tests/MP+polocks.litmus')
| -rw-r--r-- | tools/memory-model/litmus-tests/MP+polocks.litmus | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/tools/memory-model/litmus-tests/MP+polocks.litmus b/tools/memory-model/litmus-tests/MP+polocks.litmus index 712a4fcdf6ce..21cbca6f3be4 100644 --- a/tools/memory-model/litmus-tests/MP+polocks.litmus +++ b/tools/memory-model/litmus-tests/MP+polocks.litmus @@ -11,25 +11,29 @@ C MP+polocks * to see all prior accesses by those other CPUs. *) -{} +{ + spinlock_t mylock; + int buf; + int flag; +} -P0(int *x, int *y, spinlock_t *mylock) +P0(int *buf, int *flag, spinlock_t *mylock) // Producer { - WRITE_ONCE(*x, 1); + WRITE_ONCE(*buf, 1); spin_lock(mylock); - WRITE_ONCE(*y, 1); + WRITE_ONCE(*flag, 1); spin_unlock(mylock); } -P1(int *x, int *y, spinlock_t *mylock) +P1(int *buf, int *flag, spinlock_t *mylock) // Consumer { int r0; int r1; spin_lock(mylock); - r0 = READ_ONCE(*y); + r0 = READ_ONCE(*flag); spin_unlock(mylock); - r1 = READ_ONCE(*x); + r1 = READ_ONCE(*buf); } -exists (1:r0=1 /\ 1:r1=0) +exists (1:r0=1 /\ 1:r1=0) (* Bad outcome. *) |