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Reverted a temporary workaround for bug #56405 "Deadlock

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in the MDL deadlock detector".

It is no longer needed as a better fix for this bug has
been pushed.
This commit is contained in:
Dmitry Lenev
2010-09-30 17:29:12 +04:00
parent a53f61e6e8
commit 8322cad015
6 changed files with 14 additions and 83 deletions
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10
sql/sql_base.cc
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@ -100,14 +100,11 @@ bool No_such_table_error_handler::safely_trapped_errors()
TABLE_SHAREs, refresh_version and the table id counter.
*/
mysql_mutex_t LOCK_open;
mysql_mutex_t LOCK_dd_owns_lock_open;
uint dd_owns_lock_open= 0;
#ifdef HAVE_PSI_INTERFACE
static PSI_mutex_key key_LOCK_open, key_LOCK_dd_owns_lock_open;
static PSI_mutex_key key_LOCK_open;
static PSI_mutex_info all_tdc_mutexes[]= {
{ &key_LOCK_open, "LOCK_open", PSI_FLAG_GLOBAL },
{ &key_LOCK_dd_owns_lock_open, "LOCK_dd_owns_lock_open", PSI_FLAG_GLOBAL }
{ &key_LOCK_open, "LOCK_open", PSI_FLAG_GLOBAL }
};
/**
@ -302,8 +299,6 @@ bool table_def_init(void)
init_tdc_psi_keys();
#endif
mysql_mutex_init(key_LOCK_open, &LOCK_open, MY_MUTEX_INIT_FAST);
mysql_mutex_init(key_LOCK_dd_owns_lock_open, &LOCK_dd_owns_lock_open,
MY_MUTEX_INIT_FAST);
oldest_unused_share= &end_of_unused_share;
end_of_unused_share.prev= &oldest_unused_share;
@ -347,7 +342,6 @@ void table_def_free(void)
table_def_inited= 0;
/* Free table definitions. */
my_hash_free(&table_def_cache);
mysql_mutex_destroy(&LOCK_dd_owns_lock_open);
mysql_mutex_destroy(&LOCK_open);
}
DBUG_VOID_RETURN;