[Bugs] [Bug 1468118] New: disperse seek does not correctly handle the end of file

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1468118

            Bug ID: 1468118
           Summary: disperse seek does not correctly handle the end of
                    file
           Product: GlusterFS
           Version: 3.11
         Component: disperse
          Keywords: Triaged
          Assignee: bugs at gluster.org
          Reporter: pkarampu at redhat.com
                CC: bugs at gluster.org, pkarampu at redhat.com,
                    xhernandez at datalab.es
        Depends On: 1449348



+++ This bug was initially created as a clone of Bug #1449348 +++

Description of problem:

A seek with SEEK_HOLE can return an offset bigger than the file size.
Additionally some offsets beyond the file size do return a valid answer instead
of ENXIO as they should.

Version-Release number of selected component (if applicable): mainline


How reproducible:


Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:

--- Additional comment from Worker Ant on 2017-05-09 13:43:17 EDT ---

REVIEW: https://review.gluster.org/17228 (cluster/ec: correctly handle end of
file for seek) posted (#1) for review on master by Xavier Hernandez
(xhernandez at datalab.es)

--- Additional comment from Worker Ant on 2017-05-09 14:12:33 EDT ---

REVIEW: https://review.gluster.org/17228 (cluster/ec: correctly handle end of
file for seek) posted (#2) for review on master by Xavier Hernandez
(xhernandez at datalab.es)

--- Additional comment from Worker Ant on 2017-05-11 03:24:14 EDT ---

REVIEW: https://review.gluster.org/17228 (cluster/ec: correctly handle end of
file for seek) posted (#3) for review on master by Xavier Hernandez
(xhernandez at datalab.es)

--- Additional comment from Worker Ant on 2017-07-06 02:17:48 EDT ---

COMMIT: https://review.gluster.org/17228 committed in master by Pranith Kumar
Karampuri (pkarampu at redhat.com) 
------
commit eb96dd45f8e583c6bad84bf32ca17e2bb01dd38f
Author: Xavier Hernandez <xhernandez at datalab.es>
Date:   Tue May 9 19:40:21 2017 +0200

    cluster/ec: correctly handle end of file for seek

    When a SEEK_HOLE was issued near to the end of file, sometimes an
    offset beyond the end of file was returned. Another problem was that
    using some offsets greater than the end of file returned successfully
    instead of failing with ENXIO.

    Change-Id: I238d2884ba02fd19a78116b0f8f8e8d6338fb3f5
    BUG: 1449348
    Signed-off-by: Xavier Hernandez <xhernandez at datalab.es>
    Reviewed-on: https://review.gluster.org/17228
    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>
    Reviewed-by: Amar Tumballi <amarts at redhat.com>
    Reviewed-by: Pranith Kumar Karampuri <pkarampu at redhat.com>


Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1449348
[Bug 1449348] disperse seek does not correctly handle the end of file
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