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| author | Konstantin Osipov <kostja@sun.com> | 2009-12-04 01:48:14 +0300 |
|---|---|---|
| committer | Konstantin Osipov <kostja@sun.com> | 2009-12-04 01:48:14 +0300 |
| commit | cae6e72a40800664af6106560e706d38c79c3bbc (patch) | |
| tree | f679045c598cd92e16b4b66660f272a2edf15a17 /sql/mdl.cc | |
| parent | 411a81954ecab031d58b99aaac3e2ee6518b6d80 (diff) | |
| download | mariadb-git-cae6e72a40800664af6106560e706d38c79c3bbc.tar.gz | |
Backport of:
----------------------------------------------------------
revno: 2617.22.7
committer: Konstantin Osipov <kostja@sun.com>
branch nick: mysql-6.0-runtime
timestamp: Tue 2009-01-27 16:41:58 +0300
message:
WL#4284 "Transactional DDL locking" review.
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sql/mdl.cc:
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Diffstat (limited to 'sql/mdl.cc')
| -rw-r--r-- | sql/mdl.cc | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/sql/mdl.cc b/sql/mdl.cc index f28778a1a83..78a85f49952 100644 --- a/sql/mdl.cc +++ b/sql/mdl.cc @@ -1320,10 +1320,11 @@ void mdl_release_locks(MDL_CONTEXT *context) { DBUG_PRINT("info", ("found lock to release lock_data=%p", lock_data)); /* - We should not release locks which pending shared locks as these - are not associated with lock object and don't present in its - lists. Allows us to avoid problems in open_tables() in case of - back-off + Don't call release_lock() for a shared lock if has not been + granted. Lock state in this case is MDL_INITIALIZED. + We have pending and granted shared locks in the same context + when this function is called from the "back-off" path of + open_tables(). */ if (lock_data->state != MDL_INITIALIZED) { |