add conf item to re-disable atomic flush

Signed-off-by: Jason Volk <jason@zemos.net>

conduwuit-example.toml

@@ -925,6 +925,13 @@
 #
 #rocksdb_checksums = true
 
+# Enables the "atomic flush" mode in rocksdb. This option is not intended
+# for users. It may be removed or ignored in future versions. Atomic flush
+# may be enabled by the paranoid to possibly improve database integrity at
+# the cost of performance.
+#
+#rocksdb_atomic_flush = false
+
 # Database repair mode (for RocksDB SST corruption).
 #
 # Use this option when the server reports corruption while running or