commit 50b5d22acba7cc63c53496b3b00c624eb5f5dd59
Author: Zuul <zuul@review.opendev.org>
Date:   Sun Oct 18 04:48:04 2020 +0000

    Update git submodules
    
    * Update nova from branch 'master'
      - Merge "Prevent archiving of pci_devices records because of 'instance_uuid'"
      - Prevent archiving of pci_devices records because of 'instance_uuid'
    
        Currently in the archive_deleted_rows code, we will attempt to clean up
        "residue" of deleted instance records by assuming any table with a
        'instance_uuid' column represents data tied to an instance's lifecycle
        and delete such records.
    
        This behavior poses a problem in the case where an instance has a PCI
        device allocated and someone deletes the instance. The 'instance_uuid'
        column in the pci_devices table is used to track the allocation
        association of a PCI with an instance. There is a small time window
        during which the instance record has been deleted but the PCI device
        has not yet been freed from a database record perspective as PCI
        devices are freed during the _complete_deletion method in the compute
        manager as part of the resource tracker update call.
    
        Records in the pci_devices table are anyway not related to the
        lifecycle of instances so they should not be considered residue to
        clean up if an instance is deleted. This adds a condition to avoid
        archiving pci_devices on the basis of an instance association.
    
        Closes-Bug: #1899541
    
        Change-Id: Ie62d3566230aa3e2786d129adbb2e3570b06e4c6

diff --git a/nova b/nova
index 7f4afc1..20ca7c4 160000
--- a/nova
+++ b/nova
@@ -1 +1 @@
-Subproject commit 7f4afc1a0fbc721731a0c88bb91cada8f4e4ed11
+Subproject commit 20ca7c4337adb58d9290521fb20803d789f2b574