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Update git submodules 

* Update neutron from branch 'master'
  - Merge "Lock subnets during port creation and subnet deletion"
  - Lock subnets during port creation and subnet deletion
    
    The field "in_use" is added to "subnet" DB definition. This DB
    register column is a flag used to mark a register as in use
    by other transaction. When a write DB transaction writes any
    value on this field, the register is locked for any other
    concurrent transaction. If two DB transactions try to set this
    column at the same time, one of them will fail.
    
    This DB lock is implemented in "subnet" and is used during the
    subnet deletion and the port IP assignation, where all the port
    network subnets are retrieved to provide an IP address on the subnet
    CIDR.
    
    As reported in the related bug, it was possible to assign an IP
    to a port and, before the port creation command finished, delete the
    subnet where the IP belonged. This patch introduces this subnet lock
    during the IP assignation and at the beginning of the subnet deletion
    process. At the end of both transactions, the DB engine checks if the
    lock operation (write "in_use" column) is possible or the subnet
    register was already requested by other DB transaction.
    
    Change-Id: I45a724917389814e83400f5854ada175dfce2b7b
    Closes-Bug: #1865891
This commit is contained in:
Zuul 2020-04-24 10:35:40 +00:00 committed by Gerrit Code Review
parent 2d8f241b27
commit 1a267ac38e
1 changed files with 1 additions and 1 deletions
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neutron

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Subproject commit 3793f1f3888a85fc5e48c0e94e6a9f3c05e95c43
Subproject commit 0fab732485dd9922ccbec54867f0d9fc2c34e205