[Bugs] [Bug 1179169] tar on a gluster directory gives message "file changed as we read it" even though no updates to file in progress

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1179169



--- Comment #3 from Anand Avati <aavati at redhat.com> ---
COMMIT: http://review.gluster.org/9457 committed in master by Raghavendra G
(rgowdapp at redhat.com) 
------
commit b45f623a7a8e14ca09a10c6a04c4c5f81e3a62e2
Author: Krutika Dhananjay <kdhananj at redhat.com>
Date:   Fri Jan 16 14:26:45 2015 +0530

    cluster/dht: Fix incorrect updates to parent times

    In directory write FOPs, as far as updates to timestamps associated
    with parent by DHT is concerned, there are three possibilities:
    a) time (in sec) gotten from child of DHT < time (in sec) in inode ctx
    b) time (in sec) gotten from child of DHT = time (in sec) in inode ctx
    c) time (in sec) gotten from child of DHT > time (in sec) in inode ctx

    In case (c), for time in nsecs, it is the value returned by DHT's child
    that must be selected. But what DHT_UPDATE_TIME ends up doing is to choose
    the maximum of (time in nsec gotten from DHT's child, time in nsec in inode
ctx).

    Change-Id: I535a600b9f89b8d9b6714a73476e63ce60e169a8
    BUG: 1179169
    Signed-off-by: Krutika Dhananjay <kdhananj at redhat.com>
    Reviewed-on: http://review.gluster.org/9457
    Reviewed-by: Pranith Kumar Karampuri <pkarampu at redhat.com>
    Tested-by: Gluster Build System <jenkins at build.gluster.com>
    Reviewed-by: Raghavendra G <rgowdapp at redhat.com>
    Tested-by: Raghavendra G <rgowdapp at redhat.com>

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