Commit ff0c472b authored by unknown's avatar unknown
Browse files

Merge ibabaev@bk-internal.mysql.com:/home/bk/mysql-5.1-new 

into  rurik.mysql.com:/home/igor/mysql-5.1


storage/ndb/tools/Makefile.am:
  Auto merged
parents f078e5e1 682304af

storage/innobase/btr/btr0sea.c

+9 −10
Original line number Diff line number Diff line
@@ -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.
@@ -1604,10 +1607,6 @@ 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);
@@ -1617,7 +1616,7 @@ btr_search_validate(void) 
	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);
@@ -1676,8 +1675,8 @@ 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. */