Stefan Reiter bfa54f2e85 verify: acquire shared snapshot flock and skip on error
If we can't acquire a lock (either because the snapshot disappeared, it
is about to be forgotten/pruned, or it is currently still running) skip
the snapshot. Hold the lock during verification, so that it cannot be
deleted while we are still verifying.

Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
2020-10-15 07:09:34 +02:00
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