Merge pull request ceph#57120 from NUABO/tancz

os/bluestore: allow use BtreeAllocator

Author: aclamk

src/common/options/global.yaml.in

@@ -4183,6 +4183,7 @@ options:
   - bitmap
   - stupid
   - avl
+  - btree
   - hybrid
   with_legacy: true
 - name: bluefs_log_replay_check_allocations
@@ -4988,6 +4989,7 @@ options:
   - bitmap
   - stupid
   - avl
+  - btree
   - hybrid
   with_legacy: true
 - name: bluestore_freelist_blocks_per_key