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MDEV-40427 lock_move_reorganize_page() early exit check is useful onl… #5404

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MDEV-40427 lock_move_reorganize_page() early exit check is useful onl… #5404

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4 changes: 4 additions & 0 deletions storage/innobase/lock/lock0lock.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -2914,11 +2914,15 @@ lock_move_reorganize_page(
UT_LIST_INIT(old_locks, &lock_t::trx_locks);

const page_id_t id{block->page.id()};
/* Fast path for the early exit case, available only with lock elision. */
#if !defined NO_ELISION && !defined SUX_LOCK_GENERIC
if (have_transactional_memory)
{
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TMLockGuard g{lock_sys.rec_hash, id};
if (!lock_sys_t::get_first(g.cell(), id))
return;
}
#endif

/* All record locks affected by a page reorganize belong to this
single page and therefore live in a single lock_sys.rec_hash cell.
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