[Bugs] [Bug 1254607] rpc: Address issues with transport object reference and leak

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1254607



--- Comment #2 from Anand Avati <aavati at redhat.com> ---
COMMIT: http://review.gluster.org/11953 committed in release-3.7 by Kaleb
KEITHLEY (kkeithle at redhat.com) 
------
commit 4ec99ad55f2ad74d67591cda68320c26235a9e12
Author: Soumya Koduri <skoduri at redhat.com>
Date:   Thu Aug 6 06:22:38 2015 +0530

    rpc-clnt: Check for transport object during rpc connection cleanup

    While doing glfs_fini(), all the xlators are first notified of
    PARENT_DOWN. protocol-client xlator on receving that notification
    does rpc_clnt_disable which disassociates rpc->conn with its
    transport object and does socket shutdown. So any further references
    to conn->trans should not happen during rpc connection cleanup which
    is done mainly as part of epoll event handling of EPOLLERR/EPOLLHUP.

    This is a backport of the below fix-
     http://review.gluster.org/#/c/11845/

    BUG: 1254607
    Change-Id: I619ec00fd061f77c9b04dfa6fd139620cb44189b
    Signed-off-by: Soumya Koduri <skoduri at redhat.com>
    Reviewed-on: http://review.gluster.org/11845
    Reviewed-by: Raghavendra G <rgowdapp at redhat.com>
    Reviewed-by: Kaleb KEITHLEY <kkeithle at redhat.com>
    Reviewed-on: http://review.gluster.org/11953
    Tested-by: NetBSD Build System <jenkins at build.gluster.org>

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