tree f92b8d6d7eee22bc41fd66784bce5f1c9f362748
parent 422d7361d2e79c39aa67561cbce8f5600662433c
author Pierre Habouzit <phabouzit@apple.com> 1499982703 -0700
committer Daniel A. Steffen <das@apple.com> 1501534569 -0700

Remove dependency on sys_membarrier on linux

By not inlining the fastpath of dispatch_once() when the hardware cannot
give us the right semantics.

Signed-off-by: Daniel A. Steffen <dsteffen@apple.com>