os/bluestore: fix bloom filter num entry miscalculation in repairer #24076
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This could cause an assertion due to an access to uninitialized bloom
filter. This happened when detected errors involving physical extents were
close to the end of a large partition.
E.g. it was observed in http://tracker.ceph.com/issues/25001 while trying to repair an OSD.
Fixes: https://tracker.ceph.com/issues/35971
Signed-off-by: Igor Fedotov ifedotov@suse.com