[Bugs] [Bug 1387894] Regression caused by enabling client-io-threads by default

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1387894



--- Comment #2 from Worker Ant <bugzilla-bot at gluster.org> ---
COMMIT: http://review.gluster.org/15701 committed in release-3.9 by Pranith
Kumar Karampuri (pkarampu at redhat.com) 
------
commit 4731717aca7a1bd778ba497440a64c4c6eef1daf
Author: Pranith Kumar K <pkarampu at redhat.com>
Date:   Sun Oct 9 21:36:40 2016 +0530

    performance/io-threads: Exit all threads on PARENT_DOWN

    Problem:
    When glfs_fini() is called on a volume where client.io-threads is enabled,
    fini() will free up iothread xl's private structure but there would be some
    threads that are sleeping which would wakeup after the timedwait completes
    leading to accessing already free'd memory.

    Fix:
    As part of parent-down, exit all sleeping threads.

     >BUG: 1381830
     >Change-Id: I0bb8d90241112c355fb22ee3fbfd7307f475b339
     >Signed-off-by: Pranith Kumar K <pkarampu at redhat.com>
     >Reviewed-on: http://review.gluster.org/15620
     >Smoke: Gluster Build System <jenkins at build.gluster.org>
     >CentOS-regression: Gluster Build System <jenkins at build.gluster.org>
     >NetBSD-regression: NetBSD Build System <jenkins at build.gluster.org>
     >Reviewed-by: Raghavendra G <rgowdapp at redhat.com>
     >(cherry picked from commit d7a5ca16911caca03cec1112d4be56a9cda2ee30)

    Change-Id: I450e5db84c83fae3237aaa7915c08cd3ee9bde2c
    BUG: 1387894
    Signed-off-by: Pranith Kumar K <pkarampu at redhat.com>
    Reviewed-on: http://review.gluster.org/15701
    Smoke: Gluster Build System <jenkins at build.gluster.org>
    NetBSD-regression: NetBSD Build System <jenkins at build.gluster.org>
    CentOS-regression: Gluster Build System <jenkins at build.gluster.org>

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