Cleanup: use constexpr for SRV_UNDO_TABLESPACE_SIZE_IN_PAGES

storage/innobase/include/srv0srv.h

@@ -321,8 +321,9 @@ extern my_bool	srv_undo_log_truncate;
 /* Enables or disables this prefix optimization.  Disabled by default. */
 extern my_bool	srv_prefix_index_cluster_optimization;
 
-/** Default size of UNDO tablespace while it is created new. */
-extern const ulint	SRV_UNDO_TABLESPACE_SIZE_IN_PAGES;
+/** Default size of UNDO tablespace (10MiB for innodb_page_size=16k) */
+constexpr ulint SRV_UNDO_TABLESPACE_SIZE_IN_PAGES= (10U << 20) /
+  UNIV_PAGE_SIZE_DEF;
 
 extern char*	srv_log_group_home_dir;
 

storage/innobase/srv/srv0srv.cc

@@ -125,10 +125,6 @@ my_bool	srv_undo_log_truncate;
 /** Maximum size of undo tablespace. */
 unsigned long long	srv_max_undo_log_size;
 
-/** Default undo tablespace size in UNIV_PAGEs count (10MB). */
-const ulint SRV_UNDO_TABLESPACE_SIZE_IN_PAGES =
-	((1024 * 1024) * 10) / UNIV_PAGE_SIZE_DEF;
-
 /** Set if InnoDB must operate in read-only mode. We don't do any
 recovery and open all tables in RO mode instead of RW mode. We don't
 sync the max trx id to disk either. */