[OpenSIPS-Devel] [OpenSIPS/opensips] f79d3b: userblacklist: sync between reload and read

[Razvan Crainea]

  Branch: refs/heads/2.2
  Home:   https://github.com/OpenSIPS/opensips
  Commit: f79d3b445e969b222ac4daf4ce2dd39108315bb4
      https://github.com/OpenSIPS/opensips/commit/f79d3b445e969b222ac4daf4ce2dd39108315bb4
  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)