[Bugs] [Bug 1210934] qcow2 image creation using qemu-img hits segmentation fault

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1210934



--- Comment #16 from Anand Avati <aavati at redhat.com> ---
COMMIT: http://review.gluster.org/10414 committed in release-3.7 by Vijay
Bellur (vbellur at redhat.com) 
------
commit 5fd6b3b7e2881d21a1b19fb22366e905314d71bc
Author: Poornima G <pgurusid at redhat.com>
Date:   Wed Apr 29 13:03:52 2015 +0530

    libgfapi: Store and restore THIS in every API exposed by libgfapi

            Backport of http://review.gluster.org/#/c/9797

    Storing and restoring THIS:
    When the APIs exposed by libgfapi are called by other xlators like
    snapview server etc. the THIS value is overwritten to contain the
    THIS of libgfapi(viz libgfapi master xlator). Hence using 'THIS'
    in any xlator after calling libgfapi API will lead to issues.
    One such issue was uncovered in snapview and the patch
    http://review.gluster.org/#/c/9469/ was sent to workaround this issue.

    Hence, storing and restoring THIS, at the entry and exit of every API
    exposed by libgfapi.

    Change-Id: I6f330dde25e7700fb26339d667a7ccd193ec6ba0
    BUG: 1210934
    Signed-off-by: Poornima G <pgurusid at redhat.com>
    Reviewed-on: http://review.gluster.org/9797
    Reviewed-by: Raghavendra Talur <rtalur at redhat.com>
    Reviewed-by: soumya k <skoduri at redhat.com>
    Reviewed-by: Niels de Vos <ndevos at redhat.com>
    Tested-by: Gluster Build System <jenkins at build.gluster.com>
    (cherry picked from commit 1162bb36108ab8dba8303b86927a99835b791d79)
    Reviewed-on: http://review.gluster.org/10414
    Reviewed-by: Shyamsundar Ranganathan <srangana at redhat.com>

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