tree 4dd2fc460e4cd14990b3f56c8c9e5acb497abd5a
parent c3dd8e2318f87c2a691944c80a6257d4df5217ab
author Peter Lei <peter.lei@ieee.org> 1553614387 -0500
committer Peter Lei <peter.lei@ieee.org> 1553614387 -0500

Pull in missing guard for the currently executing callout (v2)

The code to guard the currently executing callout while being in
process was not ported in for some reason. This leaves open the
possibility for the currently executing callout's function to free
the callout from another thread while running.