tree 32c31e69218c1bb350f1a2f20626172dd3340c33
parent 37f3fa0941022d047fdcd86959d5f94f872e45e2
author Qi Wang <interwq@gwu.edu> 1498165070 -0700
committer Qi Wang <interwq@gmail.com> 1498175638 -0700

Avoid inactivity_check within background threads.

Passing is_background_thread down the decay path, so that background thread
itself won't attempt inactivity_check.  This fixes an issue with background
thread doing trylock on a mutex it already owns.