Remove unused code.

sql/ha_partition.h

@@ -251,7 +251,6 @@ class ha_partition :public handler
   /*
     Variables for lock structures.
   */
-  THR_LOCK_DATA lock;                   /* MySQL lock */
 
   bool auto_increment_lock;             /**< lock reading/updating auto_inc */
   /**

sql/lock.cc

@@ -541,23 +541,6 @@ void mysql_lock_remove(THD *thd, MYSQL_LOCK *locked,TABLE *table)
 }
 
 
-/** Abort all other threads waiting to get lock in table. */
-
-void mysql_lock_abort(THD *thd, TABLE *table, bool upgrade_lock)
-{
-  MYSQL_LOCK *locked;
-  DBUG_ENTER("mysql_lock_abort");
-
-  if ((locked= get_lock_data(thd, &table, 1, GET_LOCK_UNLOCK)))
-  {
-    for (uint i=0; i < locked->lock_count; i++)
-      thr_abort_locks(locked->locks[i]->lock, upgrade_lock);
-    my_free(locked);
-  }
-  DBUG_VOID_RETURN;
-}
-
-
 /**
   Abort one thread / table combination.
 

sql/lock.h

@@ -32,7 +32,6 @@ void mysql_unlock_tables(THD *thd, MYSQL_LOCK *sql_lock, bool free_lock= 1);
 void mysql_unlock_read_tables(THD *thd, MYSQL_LOCK *sql_lock);
 void mysql_unlock_some_tables(THD *thd, TABLE **table,uint count);
 void mysql_lock_remove(THD *thd, MYSQL_LOCK *locked,TABLE *table);
-void mysql_lock_abort(THD *thd, TABLE *table, bool upgrade_lock);
 bool mysql_lock_abort_for_thread(THD *thd, TABLE *table);
 MYSQL_LOCK *mysql_lock_merge(MYSQL_LOCK *a,MYSQL_LOCK *b);
 /* Lock based on name */

sql/sql_base.cc

@@ -9100,76 +9100,6 @@ my_bool mysql_rm_tmp_tables(void)
 	unireg support functions
 *****************************************************************************/
 
-/**
-   A callback to the server internals that is used to address
-   special cases of the locking protocol.
-   Invoked when acquiring an exclusive lock, for each thread that
-   has a conflicting shared metadata lock.
-
-   This function:
-     - aborts waiting of the thread on a data lock, to make it notice
-       the pending exclusive lock and back off.
-     - if the thread is an INSERT DELAYED thread, sends it a KILL
-       signal to terminate it.
-
-   @note This function does not wait for the thread to give away its
-         locks. Waiting is done outside for all threads at once.
-
-   @param thd    Current thread context
-   @param in_use The thread to wake up
-   @param needs_thr_lock_abort Indicates that to wake up thread
-                               this call needs to abort its waiting
-                               on table-level lock.
-
-   @retval  TRUE  if the thread was woken up
-   @retval  FALSE otherwise.
-
-   @note It is one of two places where border between MDL and the
-         rest of the server is broken.
-*/
-
-bool mysql_notify_thread_having_shared_lock(THD *thd, THD *in_use,
-                                            bool needs_thr_lock_abort)
-{
-  bool signalled= FALSE;
-  if ((in_use->system_thread & SYSTEM_THREAD_DELAYED_INSERT) &&
-      !in_use->killed)
-  {
-    in_use->killed= KILL_SYSTEM_THREAD;
-    mysql_mutex_lock(&in_use->mysys_var->mutex);
-    if (in_use->mysys_var->current_cond)
-    {
-      mysql_mutex_lock(in_use->mysys_var->current_mutex);
-      mysql_cond_broadcast(in_use->mysys_var->current_cond);
-      mysql_mutex_unlock(in_use->mysys_var->current_mutex);
-    }
-    mysql_mutex_unlock(&in_use->mysys_var->mutex);
-    signalled= TRUE;
-  }
-
-  if (needs_thr_lock_abort)
-  {
-    mysql_mutex_lock(&in_use->LOCK_thd_data);
-    for (TABLE *thd_table= in_use->open_tables;
-         thd_table ;
-         thd_table= thd_table->next)
-    {
-      /*
-        Check for TABLE::needs_reopen() is needed since in some places we call
-        handler::close() for table instance (and set TABLE::db_stat to 0)
-        and do not remove such instances from the THD::open_tables
-        for some time, during which other thread can see those instances
-        (e.g. see partitioning code).
-      */
-      if (!thd_table->needs_reopen())
-        signalled|= mysql_lock_abort_for_thread(thd, thd_table);
-    }
-    mysql_mutex_unlock(&in_use->LOCK_thd_data);
-  }
-  return signalled;
-}
-
-
 int setup_ftfuncs(SELECT_LEX *select_lex)
 {
   List_iterator<Item_func_match> li(*(select_lex->ftfunc_list)),

sql/sql_insert.cc

@@ -2353,7 +2353,7 @@ TABLE *Delayed_insert::get_local_table(THD* client_thd)
         The thread could be killed with an error message if
         di->handle_inserts() or di->open_and_lock_table() fails.
         The thread could be killed without an error message if
-        killed using mysql_notify_thread_having_shared_lock() or
+        killed using THD::notify_shared_lock() or
         kill_delayed_threads_for_table().
       */
       if (!thd.is_error())