diff --git a/storage/innobase/btr/btr0sea.c b/storage/innobase/btr/btr0sea.c index d8c3cfb7eda..428b4d9a6b7 100644 --- a/storage/innobase/btr/btr0sea.c +++ b/storage/innobase/btr/btr0sea.c @@ -59,6 +59,9 @@ before hash index building is started */ #define BTR_SEARCH_BUILD_LIMIT 100 +/* How many cells to check before temporarily releasing btr_search_latch */ +#define BTR_CHUNK_SIZE 10000 + /************************************************************************ Builds a hash index on a page with the given parameters. If the page already has a hash index with different parameters, the old hash index is removed. @@ -1604,25 +1607,21 @@ btr_search_validate(void) mem_heap_t* heap = NULL; ulint offsets_[REC_OFFS_NORMAL_SIZE]; ulint* offsets = offsets_; - /* How many cells to check before temporarily releasing - btr_search_latch. */ - ulint chunk_size = 10000; - *offsets_ = (sizeof offsets_) / sizeof *offsets_; rw_lock_x_lock(&btr_search_latch); cell_count = hash_get_n_cells(btr_search_sys->hash_index); - + for (i = 0; i < cell_count; i++) { /* We release btr_search_latch every once in a while to give other queries a chance to run. */ - if ((i != 0) && ((i % chunk_size) == 0)) { + if ((i != 0) && ((i % BTR_CHUNK_SIZE) == 0)) { rw_lock_x_unlock(&btr_search_latch); os_thread_yield(); rw_lock_x_lock(&btr_search_latch); } - + node = hash_get_nth_cell(btr_search_sys->hash_index, i)->node; while (node != NULL) { @@ -1676,9 +1675,9 @@ btr_search_validate(void) } } - for (i = 0; i < cell_count; i += chunk_size) { - ulint end_index = ut_min(i + chunk_size - 1, cell_count - 1); - + for (i = 0; i < cell_count; i += BTR_CHUNK_SIZE) { + ulint end_index = ut_min(i + BTR_CHUNK_SIZE - 1, cell_count - 1); + /* We release btr_search_latch every once in a while to give other queries a chance to run. */ if (i != 0) {