[OpenSIPS-Devel] [OpenSIPS/opensips] 1a24d1: userblacklist: sync between reload and read

[Razvan Crainea]

  Branch: refs/heads/2.1
  Home:   https://github.com/OpenSIPS/opensips
  Commit: 1a24d1ee15aced96866833dd6e2e54fa708914b3
      https://github.com/OpenSIPS/opensips/commit/1a24d1ee15aced96866833dd6e2e54fa708914b3
  Author: Razvan Crainea <razvan at opensips.org>
  Date:   2016-10-19 (Wed, 19 Oct 2016)

  Changed paths:
    M modules/userblacklist/userblacklist.c

  Log Message:
  -----------
  userblacklist: sync between reload and read

This commit fixes possible crash due to concurrency between the data
read while checking the blacklist and reload.

Reported by Michele Pinassi

Close #884

(cherry picked from commit edad7265c71d2259003e7500872e51c1a461ad9f)