mds: Avoid use of moved 'fs' in FSMap

[edwinzrodriguez]

Fixes: https://tracker.ceph.com/issues/73421

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[edwinzrodriguez]

jenkins test windows

[vshankar]

Nice one!

[vshankar]

This PR is under test in https://tracker.ceph.com/issues/74158.

[github-actions]

This pull request has been automatically marked as stale because it has not had any activity for 60 days. It will be closed if no further activity occurs for another 30 days.
If you are a maintainer or core committer, please follow-up on this pull request to identify what steps should be taken by the author to move this proposed change forward.
If you are the author of this pull request, thank you for your proposed contribution. If you believe this change is still appropriate, please ensure that any feedback has been addressed and ask for a code review.

[vshankar]

This PR is under test in https://tracker.ceph.com/issues/75027.

[vshankar]

https://tracker.ceph.com/projects/cephfs/wiki/QA_main_--_2026#wip-vshankar-testing-20260219125903

[github-actions]

This is an automated message by src/script/redmine-upkeep.py.

I found one or more Fixes: tags in the commit messages in

git log fd6e69c2f0a1c5f55d5aa9831f9630e6a70012ad^..fd6e69c2f0a1c5f55d5aa9831f9630e6a70012ad

The referenced tickets are:

• https://tracker.ceph.com/issues/73421

Those tickets do not reference this merged Pull Request. If this Pull Request merge resolves any of those tickets, please update the "Pull Request ID" field on each ticket. A future run of this script will appropriately update them.

Update Log: https://github.com/ceph/ceph/actions/runs/22564165409