branches/zip: Merge revisions 4032:4035 from branches/5.1

All InnoDB related tests passed on Windows, except
known failure in partition_innodb_semi_consistent.

The inadvertent change to btr0sea.c in this commit is reverted in r4060.

  ------------------------------------------------------------------------
  r4035 | vasil | 2009-01-26 09:26:25 -0600 (Mon, 26 Jan 2009) | 23 lines

  branches/5.1:

  Merge a change from MySQL:

    ------------------------------------------------------------
    revno: 2646.161.4
    committer: Tatiana A. Nurnberg <azundris@mysql.com>
    branch nick: 51-31177v2
    timestamp: Mon 2009-01-12 06:32:49 +0100
    message:
      Bug#31177: Server variables can't be set to their current values

      Bounds-checks and blocksize corrections were applied to user-input,
      but constants in the server were trusted implicitly. If these values
      did not actually meet the requirements, the user could not set change
      a variable, then set it back to the (wonky) factory default or maximum
      by explicitly specifying it (SET <var>=<value> vs SET <var>=DEFAULT).

      Now checks also apply to the server's presets. Wonky values and maxima
      get corrected at startup. Consequently all non-offsetted values the user
      sees are valid, and users can set the variable to that exact value if
      they so desire.

btr/btr0sea.c

@@ -1140,7 +1140,9 @@ btr_search_drop_page_hash_when_freed(
 
 	if (UNIV_LIKELY(block != NULL)) {
 
-		buf_block_dbg_add_level(block, SYNC_TREE_NODE_FROM_HASH);
+#ifdef UNIV_SYNC_DEBUG
+		buf_page_dbg_add_level(block, SYNC_TREE_NODE_FROM_HASH);
+#endif /* UNIV_SYNC_DEBUG */
 
 		btr_search_drop_page_hash_index(block);
 	}

handler/ha_innodb.cc

@@ -9489,7 +9489,7 @@ static MYSQL_SYSVAR_ULONG(replication_delay, srv_replication_delay,
 static MYSQL_SYSVAR_LONG(additional_mem_pool_size, innobase_additional_mem_pool_size,
   PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
   "Size of a memory pool InnoDB uses to store data dictionary information and other internal data structures.",
-  NULL, NULL, 1*1024*1024L, 512*1024L, ~0L, 1024);
+  NULL, NULL, 1*1024*1024L, 512*1024L, LONG_MAX, 1024);
 
 static MYSQL_SYSVAR_ULONG(autoextend_increment, srv_auto_extend_increment,
   PLUGIN_VAR_RQCMDARG,
@@ -9524,7 +9524,7 @@ static MYSQL_SYSVAR_LONG(force_recovery, innobase_force_recovery,
 static MYSQL_SYSVAR_LONG(log_buffer_size, innobase_log_buffer_size,
   PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
   "The size of the buffer which InnoDB uses to write log to the log files on disk.",
-  NULL, NULL, 1024*1024L, 256*1024L, ~0L, 1024);
+  NULL, NULL, 1024*1024L, 256*1024L, LONG_MAX, 1024);
 
 static MYSQL_SYSVAR_LONGLONG(log_file_size, innobase_log_file_size,
   PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
@@ -9544,7 +9544,7 @@ static MYSQL_SYSVAR_LONG(mirrored_log_groups, innobase_mirrored_log_groups,
 static MYSQL_SYSVAR_LONG(open_files, innobase_open_files,
   PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
   "How many files at the maximum InnoDB keeps open at the same time.",
-  NULL, NULL, 300L, 10L, ~0L, 0);
+  NULL, NULL, 300L, 10L, LONG_MAX, 0);
 
 static MYSQL_SYSVAR_ULONG(sync_spin_loops, srv_n_spin_wait_rounds,
   PLUGIN_VAR_RQCMDARG,