Cleanup: Remove recv_sys.remove_extra_log_files

create_log_file(): Delete all old redo log files where they used to be
deleted, after the crash injection point innodb_log_abort_6,
before commit 9ef2d29f
deprecated and ignored the setting innodb_log_files_in_group.

storage/innobase/include/log0recv.h

@@ -296,17 +296,13 @@ struct recv_sys_t
   /** Last added LSN to pages. */
   lsn_t last_stored_lsn= 0;
 
-  /** After successful upgrade from multiple redo log files we'd like
-  to remove extra ones */
-  bool remove_extra_log_files{false};
-
   void read(os_offset_t offset, span<byte> buf);
-  size_t files_size();
+  inline size_t files_size();
   void close_files() { files.clear(); }
 
 private:
-  /** All found log files (more that one is possible if we're upgrading
-  from older MariaDB version */
+  /** All found log files (multiple ones are possible if we are upgrading
+  from before MariaDB Server 10.5.1) */
   std::vector<log_file_t> files;
 
   void open_log_files_if_needed();

storage/innobase/log/log0recv.cc

@@ -743,7 +743,7 @@ void recv_sys_t::read(os_offset_t total_offset, span<byte> buf)
   ut_a(err == DB_SUCCESS);
 }
 
-size_t recv_sys_t::files_size()
+inline size_t recv_sys_t::files_size()
 {
   open_log_files_if_needed();
   return files.size();
@@ -1439,7 +1439,6 @@ ATTRIBUTE_COLD static dberr_t recv_log_recover_pre_10_2()
     log_sys.last_checkpoint_lsn= log_sys.next_checkpoint_lsn=
       log_sys.write_lsn= log_sys.current_flush_lsn= lsn;
     log_sys.next_checkpoint_no= 0;
-    recv_sys.remove_extra_log_files= true;
     return DB_SUCCESS;
   }
 
@@ -1527,7 +1526,6 @@ static dberr_t recv_log_recover_10_4()
 	log_sys.last_checkpoint_lsn = log_sys.next_checkpoint_lsn
 		= log_sys.write_lsn = log_sys.current_flush_lsn = lsn;
 	log_sys.next_checkpoint_no = 0;
-	recv_sys.remove_extra_log_files = true;
 	return DB_SUCCESS;
 }
 

storage/innobase/srv/srv0start.cc

@@ -265,8 +265,9 @@ static dberr_t create_log_file(lsn_t lsn, std::string& logfile0)
 	DBUG_EXECUTE_IF("innodb_log_abort_6", delete_log_file("0");
 			return DB_ERROR;);
 
-	delete_log_file("0");
-	delete_log_file(INIT_LOG_FILE0);
+	for (size_t i = 0; i < 102; i++) {
+		delete_log_file(std::to_string(i).c_str());
+	}
 
 	DBUG_PRINT("ib_log", ("After innodb_log_abort_6"));
 	ut_ad(!buf_pool_check_no_pending_io());
@@ -1031,8 +1032,8 @@ static lsn_t srv_prepare_to_delete_redo_log_file(bool old_exists)
 
 		if (flushed_lsn != log_sys.get_flushed_lsn()) {
 			log_write_up_to(flushed_lsn, false);
-		}
 			log_sys.log.flush_data_only();
+		}
 
 		ut_ad(flushed_lsn == log_get_lsn());
 
@@ -1528,15 +1529,6 @@ dberr_t srv_start(bool create_new_db)
 		err = recv_recovery_from_checkpoint_start(flushed_lsn);
 		recv_sys.close_files();
 
-		if (recv_sys.remove_extra_log_files) {
-			auto log_files_found = recv_sys.files_size();
-			recv_sys.close_files();
-			for (size_t i = 1; i < log_files_found; i++) {
-				delete_log_file(std::to_string(i).c_str());
-			}
-			recv_sys.remove_extra_log_files = false;
-		}
-
 		recv_sys.dblwr.pages.clear();
 
 		if (err != DB_SUCCESS) {