[Bugs] [Bug 1479655] Permission denied errors when appending files after readdir

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1479655



--- Comment #2 from Worker Ant <bugzilla-bot at gluster.org> ---
COMMIT: https://review.gluster.org/18001 committed in release-3.12 by
Shyamsundar Ranganathan (srangana at redhat.com) 
------
commit fe8fe3effb70b8c9bb0c675b867114a9b0139d0a
Author: Poornima G <pgurusid at redhat.com>
Date:   Thu Aug 3 17:43:22 2017 +0530

    gfapi: Duplicate the buffer sent in setxattr calls

    Issue:
    The caller of glfs_setxattr sends a buffer to set as the value.
    We create a dict in which the pointer to the value is set.
    Underlying layers like md-cache take a ref on this dict to store
    the value for a longer time. But the moment setxattr is complete,
    the caller of glfs_setxattr can free the value memory.

    Solution:
    memcpy the setxattr value to the gluster buffer.

    > Reviewed-on: https://review.gluster.org/17967
    > Reviewed-by: soumya k <skoduri at redhat.com>
    > Smoke: Gluster Build System <jenkins at build.gluster.org>
    > CentOS-regression: Gluster Build System <jenkins at build.gluster.org>
    > Reviewed-by: Jeff Darcy <jeff at pl.atyp.us>
    > (cherry picked from commit e11296f8e52b7e3b13d21b41d4fa34baea878edf)

    Change-Id: I58753fe702e8b7d0f6c4f058714c65d0ad5d7a0a
    BUG: 1479655
    Signed-off-by: Poornima G <pgurusid at redhat.com>
    Reviewed-on: https://review.gluster.org/18001
    Smoke: Gluster Build System <jenkins at build.gluster.org>
    CentOS-regression: Gluster Build System <jenkins at build.gluster.org>
    Reviewed-by: Shyamsundar Ranganathan <srangana at redhat.com>

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