Runnable -> Suspended -> Runnable, avoid 2 locks

Allow some freedom in the Transtion code to change thread state without
holding a lock in 2 cases where it is safe.

1) into Suspended we know that we're suspended and so checking the
suspend count is a mute point.
2) when going into Runnable we can do a racy check before doing a
secondary check after we've acquired a share on the mutator lock.

Change-Id: Ibf0e5f42acc1ff3cf06312ef001a74344d4dfa8c

0 files changed, 0 insertions, 0 deletions