PeeringState.cc: Only populate want_acting when num_osds < bucket_max

Currently, in `calc_replicated_acting_stretch` we would
call `pop_ancester` before checking whether the next
OSD we populate in the want_acting set would have
the ancestor count that is >= bucket_max.

Fixes: https://tracker.ceph.com/issues/65371

Signed-off-by: Kamoltat <[email protected]>

Author: kamoltat

src/osd/PeeringState.cc

@@ -2106,7 +2106,9 @@ void PeeringState::calc_replicated_acting_stretch(
    * and then by the ordering token of the next osd */
   bucket_heap_t aheap;
   std::for_each(ancestors.begin(), ancestors.end(), [&](auto &anc) {
-    aheap.push_if_nonempty(anc.second);
+    if (anc.second.get_num_selected() < bucket_max) {
+      aheap.push_if_nonempty(anc.second);
+    }
   });
 
   /* and pull from this heap until it's empty or we have enough.