Merge malff@bk-internal.mysql.com:/home/bk/mysql-5.1-runtime

into  weblab.(none):/home/marcsql/TREE/mysql-5.1-25422-d

2 files changed, 1 insertions, 40 deletions

diff --git a/storage/myisam/ha_myisam.cc b/storage/myisam/ha_myisam.cc
index c86459ae0a7..77334b2cfba 100644
--- a/storage/myisam/ha_myisam.cc
+++ b/storage/myisam/ha_myisam.cc
@@ -607,41 +607,7 @@ err:
 #endif /* HAVE_REPLICATION */
 
 
-bool ha_myisam::check_if_locking_is_allowed(uint sql_command,
-                                            ulong type, TABLE *table,
-                                            uint count, uint current,
-                                            uint *system_count,
-                                            bool called_by_privileged_thread)
-{
-  /*
-    To be able to open and lock for reading system tables like 'mysql.proc',
-    when we already have some tables opened and locked, and avoid deadlocks
-    we have to disallow write-locking of these tables with any other tables.
-  */
-  if (table->s->system_table &&
-      table->reginfo.lock_type >= TL_WRITE_ALLOW_WRITE)
-    (*system_count)++;
-
-  /* 'current' is an index, that's why '<=' below. */
-  if (*system_count > 0 && *system_count <= current)
-  {
-    my_error(ER_WRONG_LOCK_OF_SYSTEM_TABLE, MYF(0));
-    return FALSE;
-  }
-
-  /*
-    Deny locking of the log tables, which is incompatible with
-    concurrent insert. Unless called from a logger THD (general_log_thd
-    or slow_log_thd) or by a privileged thread.
-  */
-  if (!called_by_privileged_thread)
-    return check_if_log_table_locking_is_allowed(sql_command, type, table);
-
-  return TRUE;
-}
-
-	/* Name is here without an extension */
-
+/* Name is here without an extension */
 int ha_myisam::open(const char *name, int mode, uint test_if_locked)
 {
   MI_KEYDEF *keyinfo;
diff --git a/storage/myisam/ha_myisam.h b/storage/myisam/ha_myisam.h
index 024675075c2..635f314b3da 100644
--- a/storage/myisam/ha_myisam.h
+++ b/storage/myisam/ha_myisam.h
@@ -60,11 +60,6 @@ class ha_myisam: public handler
   uint max_supported_key_part_length() const { return MI_MAX_KEY_LENGTH; }
   uint checksum() const;
 
-  virtual bool check_if_locking_is_allowed(uint sql_command,
-                                           ulong type, TABLE *table,
-                                           uint count, uint current,
-                                           uint *system_count,
-                                           bool called_by_logger_thread);
   int open(const char *name, int mode, uint test_if_locked);
   int close(void);
   int write_row(uchar * buf);