[Bugs] [Bug 1346719] [Disperse] dd + rm + ls lead to IO hang

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1346719



--- Comment #4 from Worker Ant <bugzilla-bot at gluster.org> ---
COMMIT: http://review.gluster.org/15309 committed in master by Pranith Kumar
Karampuri (pkarampu at redhat.com) 
------
commit f013335400d033a9677797377b90b968803135f4
Author: Pranith Kumar K <pkarampu at redhat.com>
Date:   Wed Aug 24 21:01:05 2016 +0530

    cluster/ec: Use locks for opendir

    Problem:
    In some cases we see that readdir keeps winding to the brick that doesn't
have
    any blocked locks i.e. first brick. This is leading to the client assuming
that
    there are no blocking locks on the inode so it won't give away the lock.
Other
    clients end up blocked on the lock as if the command hung.

    Fix:
    Proper way to fix this issue is to use infra present in
    http://review.gluster.org/14736 This is a stop gap fix where we start
taking
    inodelks in opendir which goes to all the bricks, this will detect if there
is
    any contention.

    BUG: 1346719
    Change-Id: I91109107a26f6535b945ac476338e9f21dc31eb9
    Signed-off-by: Pranith Kumar K <pkarampu at redhat.com>
    Reviewed-on: http://review.gluster.org/15309
    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: Ashish Pandey <aspandey at redhat.com>

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