[Bugs] [Bug 1285139] Sharding - Extending writes filling incorrect final size in postbuf

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1285139



--- Comment #2 from Vijay Bellur <vbellur at redhat.com> ---
COMMIT: http://review.gluster.org/12737 committed in release-3.7 by Pranith
Kumar Karampuri (pkarampu at redhat.com) 
------
commit 5c751eba5f392bbcea5b329867112513faaf8366
Author: Krutika Dhananjay <kdhananj at redhat.com>
Date:   Mon Nov 23 13:06:25 2015 +0530

    features/shard: Eliminate extra update to postbuf in writev

            Backport of: http://review.gluster.org/#/c/12717/

    After an extending write is complete, shard translator updates postbuf
    at two places:
    1. shard_update_file_size_cbk(), and
    2. shard_post_update_size_writev_handler().

    This can lead to unexpected behavior if md-cache is part of the client
    stack and caches and serves values returned by shard translator in
    postbuf. This patch eliminates the update to postbuf in
    shard_post_update_size_writev_handler().

    Change-Id: I1b97a46931b12d5a2f5d60877e57e0caf9e9fcb6
    BUG: 1285139
    Signed-off-by: Krutika Dhananjay <kdhananj at redhat.com>
    Reviewed-on: http://review.gluster.org/12737
    Reviewed-by: Pranith Kumar Karampuri <pkarampu at redhat.com>
    Tested-by: NetBSD Build System <jenkins at build.gluster.org>
    Tested-by: Gluster Build System <jenkins at build.gluster.com>

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