Documentation/core-api/refcount-vs-atomic.rst

41 A strong (full) memory ordering guarantees that all prior loads and
42 stores (all po-earlier instructions) on the same CPU are completed
44 It also guarantees that all po-earlier stores on the same CPU
45 and all propagated stores from other CPUs must propagate to all
49 A RELEASE memory ordering guarantees that all prior loads and
50 stores (all po-earlier instructions) on the same CPU are completed
51 before the operation. It also guarantees that all po-earlier
52 stores on the same CPU and all propagated stores from other CPUs
53 must propagate to all other CPUs before the release operation
57 An ACQUIRE memory ordering guarantees that all post loads and
58 stores (all po-later instructions) on the same CPU are
59 completed after the acquire operation. It also guarantees that all
60 po-later stores on the same CPU must propagate to all other CPUs