diff options
| -rw-r--r-- | storage/innodb_plugin/dict/dict0crea.c | 18 | ||||
| -rw-r--r-- | storage/innodb_plugin/os/os0file.c | 12 |
2 files changed, 25 insertions, 5 deletions
diff --git a/storage/innodb_plugin/dict/dict0crea.c b/storage/innodb_plugin/dict/dict0crea.c index f185371bfca..09353c45c8c 100644 --- a/storage/innodb_plugin/dict/dict0crea.c +++ b/storage/innodb_plugin/dict/dict0crea.c @@ -240,17 +240,29 @@ dict_build_table_def_step( ibool is_path; mtr_t mtr; ulint space = 0; + ibool file_per_table; ut_ad(mutex_own(&(dict_sys->mutex))); table = node->table; - dict_hdr_get_new_id(&table->id, NULL, - srv_file_per_table ? &space : NULL); + /* Cache the global variable "srv_file_per_table" to + a local variable before using it. Please note + "srv_file_per_table" is not under dict_sys mutex + protection, and could be changed while executing + this function. So better to cache the current value + to a local variable, and all future reference to + "srv_file_per_table" should use this local variable. */ + file_per_table = srv_file_per_table; + + dict_hdr_get_new_id(&table->id, NULL, NULL); thr_get_trx(thr)->table_id = table->id; - if (srv_file_per_table) { + if (file_per_table) { + /* Get a new space id if srv_file_per_table is set */ + dict_hdr_get_new_id(NULL, NULL, &space); + if (UNIV_UNLIKELY(space == ULINT_UNDEFINED)) { return(DB_ERROR); } diff --git a/storage/innodb_plugin/os/os0file.c b/storage/innodb_plugin/os/os0file.c index b244e3974b3..9f937b9def2 100644 --- a/storage/innodb_plugin/os/os0file.c +++ b/storage/innodb_plugin/os/os0file.c @@ -1339,7 +1339,11 @@ try_again: /* When srv_file_per_table is on, file creation failure may not be critical to the whole instance. Do not crash the server in - case of unknown errors. */ + case of unknown errors. + Please note "srv_file_per_table" is a global variable with + no explicit synchronization protection. It could be + changed during this execution path. It might not have the + same value as the one when building the table definition */ if (srv_file_per_table) { retry = os_file_handle_error_no_exit(name, create_mode == OS_FILE_CREATE ? @@ -1426,7 +1430,11 @@ try_again: /* When srv_file_per_table is on, file creation failure may not be critical to the whole instance. Do not crash the server in - case of unknown errors. */ + case of unknown errors. + Please note "srv_file_per_table" is a global variable with + no explicit synchronization protection. It could be + changed during this execution path. It might not have the + same value as the one when building the table definition */ if (srv_file_per_table) { retry = os_file_handle_error_no_exit(name, create_mode == OS_FILE_CREATE ? |