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[OpenStack Infra <1234195@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.openstack.org/51303
Committed: http://github.com/openstack/neutron/commit/bfe1dca0563cd5beadf91e3688924c44f5063778
Submitter: Jenkins
Branch:    milestone-proposed

commit bfe1dca0563cd5beadf91e3688924c44f5063778
Author: Bob Kukura <rkukura@xxxxxxxxxx>
Date:   Thu Oct 3 12:25:24 2013 -0400

    Fix auto-deletion of ports when deleting subnets in ML2
    
    When a subnet is deleted, certain ports referencing it are
    auto-deleted. The implementation of NeutronDBPluginV2.delete_subnet()
    does this at the DB level, so ML2's mechanism drivers were not being
    called.
    
    Ml2Plugin.delete_subnet() is changed to not use the base class's
    method, and to auto-delete ports by calling its own delete_port()
    method outside of the transaction. A loop avoids race conditions with
    ports being asynchronously added to the subnet.
    
    The logic in Ml2Plugin.delete_network() is also fixed to properly
    handle auto-deleting ports and subnets, and debug logging is added to
    the various delete methods.
    
    Closes-Bug: 1234195
    Partial-Bug: 1235486
    Change-Id: I6d74f89d39ea8afe6915f1d2f9afdf66c0076f5a
    (cherry picked from commit ed78b563e13f1ed9189d7c4b9cd4317f2a50e734)


** Changed in: neutron
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1234195

Title:
  ML2 mechanism drivers not called for ports auto-deleted when subnet
  deleted

Status in OpenStack Neutron (virtual network service):
  Fix Released

Bug description:
  Similar to bug 1230330, when a subnet is deleted, ports need to be
  auto-deleted via the ML2 plugin code rather than at DB level by
  NeutronDBPLuginV2.

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