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Bug#24988 FLUSH PRIVILEGES causes brief unavailability

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- A race condition caused brief unavailablility when trying to acccess
  a table. 
- The variable 'grant_option' was removed to resolve the race condition and
  to simplify the design pattern. This flag was originally intended to optimize
  grant checks.


sql/mysql_priv.h:
  - removed 'grant_option' flag.
sql/sql_acl.cc:
  - removed 'grant_option' flag.
sql/sql_db.cc:
  - removed 'grant_option' flag.
sql/sql_insert.cc:
  - removed 'grant_option' flag.
sql/sql_parse.cc:
  - removed 'grant_option' flag.
  - removed unnecessary variables found_access, found
sql/sql_show.cc:
  - removed 'grant_option' flag.
sql/sql_update.cc:
  - removed 'grant_option' flag.
sql/sql_view.cc:
  - removed 'grant_option' flag.
This commit is contained in:
unknown 2007-05-28 14:08:04 +02:00
commit 416122b29c
8 changed files with 71 additions and 121 deletions
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2
sql/mysql_priv.h
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@ -1678,7 +1678,7 @@ extern ulong log_output_options;
extern my_bool opt_log_queries_not_using_indexes;
extern bool opt_disable_networking, opt_skip_show_db;
extern my_bool opt_character_set_client_handshake;
extern bool volatile abort_loop, shutdown_in_progress, grant_option;
extern bool volatile abort_loop, shutdown_in_progress;
extern uint volatile thread_count, thread_running, global_read_lock;
extern my_bool opt_sql_bin_update, opt_safe_user_create, opt_no_mix_types;
extern my_bool opt_safe_show_db, opt_local_infile, opt_myisam_use_mmap;