init_mutex_v1_t: Stop lying that the mutex parameter is const.
GCC 11.2.0 assumes that it is and could complain about any mysql_mutex_t
being uninitialized even after mysql_mutex_init() as long as
PLUGIN_PERFSCHEMA is enabled.
init_rwlock_v1_t, init_cond_v1_t: Remove untruthful const qualifiers.
Note: init_socket_v1_t is expecting that the socket fd has already
been created before PSI_SOCKET_CALL(init_socket), and therefore that
parameter really is being treated as a pointer to const.
in about a hundred of users of MY_BITMAP, only two were using its
built-in mutex, and only one of those two was actually needing it.
Remove the mutex from MY_BITMAP, remove all associated conditions
and checks in bitmap functions. Use an external LOCK_temp_pool
mutex and temp_pool_set_next/temp_pool_clear_bit acccessors.
Remove bitmap_init/bitmap_free, always use my_* versions.
Thanks to Theodore Brockman on Zulip for noticing
on an OSX ARM64 and testing this patch.
Per https://github.com/google/cpu_features/pull/150/files
CMAKE_SYSTEM_PROCESSOR is arm64 on Apple.
Without this, compulation error:
[ 80%] Building CXX object storage/rocksdb/CMakeFiles/rocksdblib.dir/rocksdb/util/crc32c.cc.o
/mariadb/storage/rocksdb/rocksdb/util/crc32c.cc:500:18: error: use of undeclared identifier 'isSSE42'
has_fast_crc = isSSE42();
^
/mariadb/storage/rocksdb/rocksdb/util/crc32c.cc:1230:7: error: use of undeclared identifier 'isSSE42'
if (isSSE42()) {
^
/mariadb/storage/rocksdb/rocksdb/util/crc32c.cc:1231:9: error: use of undeclared identifier 'isPCLMULQDQ'
if (isPCLMULQDQ()) {
^
This can be reverted when the RocksDB submodule is updated.
ee4bd4780b
trx_purge_rseg_get_next_history_log(): Fix a race condition that
was introduced in commit e46f76c974
(MDEV-15912). The buffer pool page contents must not be accessed
while not holding a page latch. The page latch was released by
mtr_t::commit().
This race resulted in an ASAN heap-use-after-poison during a stress test.
To avoid potential race conditions between concurrent access to
dict_table_t::freed_indexes, let us consistently use
dict_table_t::autoinc_mutex.
dict_table_remove_from_cache_low(): To avoid extensive hold time
of table->autoinc_mutex, unconditionally free the FTS data structures.
ha_innobase::check_if_supported_inplace_alter(): Do not invoke
innobase_table_is_empty() if the tablespace has been discarded.
That is, native ALTER TABLE in InnoDB will treat an empty table
in the same way as a tablespace whose tablespace has been discarded.
(Note: ALTER TABLE...ALGORITHM=COPY will fail if the tablespace
has been discarded.)
This fixes a crash that was introduced
in commit c755974775 (MDEV-19611).
Problem:
=======
The last AHI page for two indexes of an dropped table is being
freed at the same time by two threads. One thread frees the
table heap and other thread tries to access table heap again.
It leads to asan failure in btr_search_lazy_free().
Solution:
========
InnoDB uses autoinc_mutex to avoid the race condition
in btr_search_lazy_free()
Designated initializers were introduced in ISO/IEC 9899:1999 (C99),
but the C code base of MariaDB is supposed to be compatible with the
1990 version of the standard.
The InnoDB code based was switched from C to C++ in
MySQL 5.6 and MariaDB 10.0. C++ did not introduce syntax for
designated initializers until ISO/IEC 14882:2020.
Our C++ code base is still stuck with the 2011 or earlier version of
that standard.
Therefore, this check as well as the macro STRUCT_FLD are best removed.
Post-push fix for 10.5+.
The fix influence MDEV-14479. Before the fix
lock_rec_convert_impl_to_expl() did not create explicit lock if caller's
transaction owns found implicit lock(see MDEV-14479 for details). After the fix
lock_rec_convert_impl_to_expl() can create explicit lock under the above
conditions if the requested lock mode is not LOCK_REC_NOT_GAP. And that
is why we need to check if the table is X-locked before
lock_rec_convert_impl_to_expl() call.
The merge commit 4a25957274
caused a test failure on Windows. The suppression regexp
needs to accept the backslash.
fil_invalid_page_access_msg(): Simplify the implementation
and invoke sql_print_error() directly.
fil_space_t::io(): Invoke fil_invalid_page_access_msg() only from
one location.
PageConverter::update_index_page(): Always validate the PAGE_INDEX_ID.
Failure to do so could cause a crash when iterating
secondary index pages. This was caught by the 10.4 test
innodb.full_crc32_import.
Delete-marked record is on the secondary index and the clustered index
already purged the corresponding record. We cannot detect if such
record is historical and we should not: the algorithm of
row_ins_check_foreign_constraint() skips such record anyway.
If lock type is LOCK_GAP or LOCK_ORDINARY, and the transaction holds
implicit lock for the record, then explicit gap-lock will not be set for
the record, as lock_rec_convert_impl_to_expl() returns true and
lock_rec_convert_impl_to_expl() bypasses lock_rec_lock() call.
The fix converts explicit lock to implicit one if requested lock type is
not LOCK_REC_NOT_GAP.
innodb_information_schema test result is also changed as after the fix
the following statements execution:
SET autocommit=0;
INSERT INTO t1 VALUES (5,10);
SELECT * FROM t1 FOR UPDATE;
leads to additional gap lock requests.
Creation of tables by the three names mysql.user, mysql.host, mysql.db
was being blocked in the function row_mysql_is_system_table().
Since commit 4abb8216a0 (MDEV-17658),
mysql.user is a view, not a table. Since commit
ead9a34a3e (MDEV-15851), mysql.host
is not being created at all.
Let us remove the special handling of table names in InnoDB,
and allow mysql.db to be created in InnoDB. The special handling
was originally added in commit e84ef2b747
without any explanation.
Reviewed by: Sergei Golubchik
InnoDB DDL fails when it tries to sync the table
when innodb_force_recovery is set to 2. Problem
is that fts_optimize_wq is not initialized when
there are no background threads. fts_sync_during_ddl()
should check whether fts_optimize_wq is initialized.
Import operation without .cfg file fails when there is mismatch of index
between metadata table and .ibd file. Moreover, MDEV-19022 shows
that InnoDB can end up with index tree where non-leaf page has only
one child page. So it is unsafe to find the secondary index root page.
This patch does the following when importing the table without .cfg file:
1) If the metadata contains more than one index then InnoDB stops
the import operation and report the user to drop all secondary
indexes before doing import operation.
2) When the metadata contain only clustered index then InnoDB finds the
index id by reading page 0 & page 3 instead of traversing the
whole tablespace.
