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| author | Konstantin Osipov <kostja@sun.com> | 2010-08-09 22:33:47 +0400 |
|---|---|---|
| committer | Konstantin Osipov <kostja@sun.com> | 2010-08-09 22:33:47 +0400 |
| commit | f8bfa3287ded5212a28c6d4bbf2d4afee8e5c403 (patch) | |
| tree | 220bf71a69ee638da7cfd2c542d73122422a8c2f /sql/handler.h | |
| parent | 9862f8c7561aa34acb71e8e34444fef7086718e5 (diff) | |
| download | mariadb-git-f8bfa3287ded5212a28c6d4bbf2d4afee8e5c403.tar.gz | |
A fix for Bug#41158 "DROP TABLE holds LOCK_open during unlink()".
Remove acquisition of LOCK_open around file system operations,
since such operations are now protected by metadata locks.
Rework table discovery algorithm to not require LOCK_open.
No new tests added since all MDL locking operations are covered
in lock.test and mdl_sync.test, and as long as these tests
pass despite the increased concurrency, consistency must be
unaffected.
Diffstat (limited to 'sql/handler.h')
| -rw-r--r-- | sql/handler.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sql/handler.h b/sql/handler.h index cad97c1f751..4229769290d 100644 --- a/sql/handler.h +++ b/sql/handler.h @@ -2120,6 +2120,8 @@ bool ha_show_status(THD *thd, handlerton *db_type, enum ha_stat_type stat); /* discovery */ int ha_create_table_from_engine(THD* thd, const char *db, const char *name); +bool ha_check_if_table_exists(THD* thd, const char *db, const char *name, + bool *exists); int ha_discover(THD* thd, const char* dbname, const char* name, uchar** frmblob, size_t* frmlen); int ha_find_files(THD *thd,const char *db,const char *path, |