Paolo Bonzini 803cf26a9e atomic: base mb_read/mb_set on load-acquire and store-release
This introduces load-acquire and store-release operations in QEMU.
For now, just use them as an implementation detail of atomic_mb_read
and atomic_mb_set.

Since docs/atomics.txt documents that atomic_mb_read only synchronizes
with an atomic_mb_set of the same variable, we can use the new implementation
everywhere instead of seq-cst loads and stores.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-10-24 15:27:15 +02:00
..
2016-09-23 11:42:52 +08:00