tree a0621285655b30bba6e13cbd6d3b65d85f1d20cc
parent 336f697941f2efd1d9ab9f5d45cc31e24e79b1b9
author Mathieu Chartier <mathieuc@google.com> 1465949327 -0700
committer Mathieu Chartier <mathieuc@google.com> 1465952309 -0700

Visit invalid roots of only suspended threads

Since this always happens with suspended threads or self, you can
just visit these threads and do not require a suspend all. This
will not miss any roots if the caller was marking a thread root.

Fixes issues like transitioning to suspended and back blocking on a
thread suspension request from another thread. This could cause
deadlocks previously.

Bug: 29062271

Change-Id: I2fef149387aacf0cdc9a773d4f172c42fa53e4dc