tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1C LB+poacquireonce+pooncerelease
2
3(*
4 * Result: Never
5 *
6 * Does a release-acquire pair suffice for the load-buffering litmus
7 * test, where each process reads from one of two variables then writes
8 * to the other?
9 *)
10
11{}
12
13P0(int *x, int *y)
14{
15 int r0;
16
17 r0 = READ_ONCE(*x);
18 smp_store_release(y, 1);
19}
20
21P1(int *x, int *y)
22{
23 int r0;
24
25 r0 = smp_load_acquire(y);
26 WRITE_ONCE(*x, 1);
27}
28
29exists (0:r0=1 /\ 1:r0=1)