diff options
Diffstat (limited to 'storage/innobase/lock/lock0lock.c')
| -rw-r--r-- | storage/innobase/lock/lock0lock.c | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/storage/innobase/lock/lock0lock.c b/storage/innobase/lock/lock0lock.c index 5afd19aa7e7..80aef45ea35 100644 --- a/storage/innobase/lock/lock0lock.c +++ b/storage/innobase/lock/lock0lock.c @@ -22,31 +22,6 @@ Created 5/7/1996 Heikki Tuuri #include "trx0sys.h" -/* 2 function prototypes copied from ha_innodb.cc: */ - -/***************************************************************** -If you want to print a thd that is not associated with the current thread, -you must call this function before reserving the InnoDB kernel_mutex, to -protect MySQL from setting thd->query NULL. If you print a thd of the current -thread, we know that MySQL cannot modify thd->query, and it is not necessary -to call this. Call innobase_mysql_end_print_arbitrary_thd() after you release -the kernel_mutex. -NOTE that /mysql/innobase/lock/lock0lock.c must contain the prototype for this -function! */ - -void -innobase_mysql_prepare_print_arbitrary_thd(void); -/*============================================*/ - -/***************************************************************** -Relases the mutex reserved by innobase_mysql_prepare_print_arbitrary_thd(). -NOTE that /mysql/innobase/lock/lock0lock.c must contain the prototype for this -function! */ - -void -innobase_mysql_end_print_arbitrary_thd(void); -/*========================================*/ - /* Restricts the length of search we will do in the waits-for graph of transactions */ #define LOCK_MAX_N_STEPS_IN_DEADLOCK_CHECK 1000000 @@ -4222,11 +4197,6 @@ lock_print_info_summary( /*====================*/ FILE* file) /* in: file where to print */ { - /* We must protect the MySQL thd->query field with a MySQL mutex, and - because the MySQL mutex must be reserved before the kernel_mutex of - InnoDB, we call innobase_mysql_prepare_print_arbitrary_thd() here. */ - - innobase_mysql_prepare_print_arbitrary_thd(); lock_mutex_enter_kernel(); if (lock_deadlock_found) { @@ -4314,7 +4284,6 @@ loop: if (trx == NULL) { lock_mutex_exit_kernel(); - innobase_mysql_end_print_arbitrary_thd(); ut_ad(lock_validate()); @@ -4386,7 +4355,6 @@ loop: if (load_page_first) { lock_mutex_exit_kernel(); - innobase_mysql_end_print_arbitrary_thd(); mtr_start(&mtr); @@ -4397,7 +4365,6 @@ loop: load_page_first = FALSE; - innobase_mysql_prepare_print_arbitrary_thd(); lock_mutex_enter_kernel(); goto loop; |