Bug 1755190: [4.2] ovn: fix a deadlock in the NetworkPolicy code

[danwinship]

Backport from master of ovn-org/ovn-kubernetes#838

[openshift-ci-robot]

@danwinship: This pull request references Bugzilla bug 1755190, which is invalid:

• expected dependent Bugzilla bug 1752222 to be in one of the following states: VERIFIED, RELEASE_PENDING, CLOSED (ERRATA), but it is MODIFIED instead

Comment /bugzilla refresh to re-evaluate validity if changes to the Bugzilla bug are made, or edit the title of this pull request to link to a different bug.

In response to this:

Bug 1755190: [4.2] ovn: fix a deadlock in the NetworkPolicy code

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[squeed]

/lgtm
/approve

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: danwinship, squeed

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[dcbw]

/bugzilla refresh

[openshift-ci-robot]

@dcbw: This pull request references Bugzilla bug 1755190, which is invalid:

• expected dependent Bugzilla bug 1752222 to be in one of the following states: VERIFIED, RELEASE_PENDING, CLOSED (ERRATA), but it is ON_QA instead

Comment /bugzilla refresh to re-evaluate validity if changes to the Bugzilla bug are made, or edit the title of this pull request to link to a different bug.

In response to this:

/bugzilla refresh

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[danwinship]

oops, I refiled this as #54