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The sole purpose of handlerton::release_temporary_latches and its wrapper function was to release the InnoDB adaptive hash index latch (btr_search_latch). When the btr_search_latch was split into an array of latches in MySQL 5.7.8 as part of the Oracle Bug#20985298 fix, the "caching" of the latch across storage engine API calls was removed. As part of that, the function trx_search_latch_release_if_reserved() was changed to an assertion and the function trx_reserve_search_latch_if_not_reserved() was removed, and handlerton::release_temporary_latches() practically became a no-op. Note: MDEV-12121 replaced the function trx_search_latch_release_if_reserved() with the more appropriately named macro trx_assert_no_search_latch(). |
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| .. | ||
| ha_innodb.cc | ||
| ha_innodb.h | ||
| handler0alter.cc | ||
| i_s.cc | ||
| i_s.h | ||
| xtradb_i_s.cc | ||
| xtradb_i_s.h | ||