Many fixes

include/my_bitmap.h

@@ -21,10 +21,13 @@
 
 #define MY_BIT_NONE (~(uint) 0)
 
+
 typedef struct st_bitmap
 {
   uchar *bitmap;
-  uint bitmap_size; /* number of bytes occupied by the above */
+  uint bitmap_size; /* number of bits occupied by the above */
+  uint32 last_word_mask;
+  uint32 *last_word_ptr;
   /*
      mutex will be acquired for the duration of each bitmap operation if
      thread_safe flag in bitmap_init was set.  Otherwise, we optimize by not
@@ -38,30 +41,60 @@ typedef struct st_bitmap
 #ifdef	__cplusplus
 extern "C" {
 #endif
-extern my_bool bitmap_cmp(const MY_BITMAP *map1, const MY_BITMAP *map2);
 extern my_bool bitmap_init(MY_BITMAP *map, uchar *buf, uint bitmap_size, my_bool thread_safe);
 extern my_bool bitmap_is_clear_all(const MY_BITMAP *map);
 extern my_bool bitmap_is_prefix(const MY_BITMAP *map, uint prefix_size);
-extern my_bool bitmap_is_set(const MY_BITMAP *map, uint bitmap_bit);
 extern my_bool bitmap_is_set_all(const MY_BITMAP *map);
 extern my_bool bitmap_is_subset(const MY_BITMAP *map1, const MY_BITMAP *map2);
 extern uint bitmap_set_next(MY_BITMAP *map);
 extern uint bitmap_get_first(const MY_BITMAP *map);
+extern uint bitmap_get_first_set(const MY_BITMAP *map);
 extern uint bitmap_bits_set(const MY_BITMAP *map);
-extern void bitmap_clear_all(MY_BITMAP *map);
-extern void bitmap_clear_bit(MY_BITMAP *map, uint bitmap_bit);
 extern void bitmap_free(MY_BITMAP *map);
-extern void bitmap_intersect(MY_BITMAP *map, const MY_BITMAP *map2);
-extern void bitmap_set_all(MY_BITMAP *map);
-extern void bitmap_set_bit(MY_BITMAP *map, uint bitmap_bit);
 extern void bitmap_set_prefix(MY_BITMAP *map, uint prefix_size);
+extern void bitmap_intersect(MY_BITMAP *map, const MY_BITMAP *map2);
 extern void bitmap_subtract(MY_BITMAP *map, const MY_BITMAP *map2);
 extern void bitmap_union(MY_BITMAP *map, const MY_BITMAP *map2);
 
+extern uint bitmap_lock_set_next(MY_BITMAP *map);
+extern void bitmap_lock_clear_bit(MY_BITMAP *map, uint bitmap_bit);
+#ifdef NOT_USED
+extern uint bitmap_lock_bits_set(const MY_BITMAP *map);
+extern my_bool bitmap_lock_is_set_all(const MY_BITMAP *map);
+extern uint bitmap_lock_get_first(const MY_BITMAP *map);
+extern uint bitmap_lock_get_first_set(const MY_BITMAP *map);
+extern my_bool bitmap_lock_is_subset(const MY_BITMAP *map1,
+                                     const MY_BITMAP *map2);
+extern my_bool bitmap_lock_is_prefix(const MY_BITMAP *map, uint prefix_size);
+extern my_bool bitmap_lock_is_set(const MY_BITMAP *map, uint bitmap_bit);
+extern my_bool bitmap_lock_is_clear_all(const MY_BITMAP *map);
+extern my_bool bitmap_lock_cmp(const MY_BITMAP *map1, const MY_BITMAP *map2);
+extern void bitmap_lock_set_all(MY_BITMAP *map);
+extern void bitmap_lock_clear_all(MY_BITMAP *map);
+extern void bitmap_lock_set_bit(MY_BITMAP *map, uint bitmap_bit);
+extern void bitmap_lock_flip_bit(MY_BITMAP *map, uint bitmap_bit);
+extern void bitmap_lock_set_prefix(MY_BITMAP *map, uint prefix_size);
+extern void bitmap_lock_intersect(MY_BITMAP *map, const MY_BITMAP *map2);
+extern void bitmap_lock_subtract(MY_BITMAP *map, const MY_BITMAP *map2);
+extern void bitmap_lock_union(MY_BITMAP *map, const MY_BITMAP *map2);
+extern void bitmap_lock_xor(MY_BITMAP *map, const MY_BITMAP *map2);
+extern void bitmap_lock_invert(MY_BITMAP *map);
+#endif
 /* Fast, not thread safe, bitmap functions */
-#define bitmap_fast_set_bit(MAP, BIT) (MAP)->bitmap[(BIT) / 8] |= (1 << ((BIT) & 7))
-#define bitmap_fast_clear_bit(MAP, BIT) (MAP)->bitmap[(BIT) / 8] &= ~ (1 << ((BIT) & 7))
-#define bitmap_fast_is_set(MAP, BIT) (MAP)->bitmap[(BIT) / 8] & (1 << ((BIT) & 7))
+#define no_bytes_in_map(map) ((map->bitmap_size + 7)/8)
+#define no_words_in_map(map) ((map->bitmap_size + 31)/32)
+#define bytes_word_aligned(bytes) (4*((bytes + 3)/4))
+#define bitmap_set_bit(MAP, BIT) ((MAP)->bitmap[(BIT) / 8] |= (1 << ((BIT) & 7)))
+#define bitmap_flip_bit(MAP, BIT) ((MAP)->bitmap[(BIT) / 8] ^= (1 << ((BIT) & 7)))
+#define bitmap_clear_bit(MAP, BIT) ((MAP)->bitmap[(BIT) / 8] &= ~ (1 << ((BIT) & 7)))
+#define bitmap_is_set(MAP, BIT) ((MAP)->bitmap[(BIT) / 8] & (1 << ((BIT) & 7)))
+#define bitmap_cmp(MAP1, MAP2) \
+  (memcmp((MAP1)->bitmap, (MAP2)->bitmap, 4*no_words_in_map((MAP1)))==0)
+#define bitmap_clear_all(MAP) \
+  memset((MAP)->bitmap, 0, 4*no_words_in_map((MAP))); \
+  *(MAP)->last_word_ptr|= (MAP)->last_word_mask
+#define bitmap_set_all(MAP) \
+  (memset((MAP)->bitmap, 0xFF, 4*no_words_in_map((MAP))))
 
 #ifdef	__cplusplus
 }

sql/handler.cc

@@ -1357,16 +1357,17 @@ int handler::ha_initialise()
 
 int handler::ha_allocate_read_write_set(ulong no_fields)
 {
+  uint bitmap_size= 4*(((no_fields+1)+31)/32);
+  uchar *read_buf, *write_buf;
   DBUG_ENTER("ha_allocate_read_write_set");
   DBUG_PRINT("info", ("no_fields = %d", no_fields));
-  read_set= new bitvector;
-  write_set= new bitvector;
-  if (!read_set || !write_set)
-  {
-    ha_deallocate_read_write_set();
-    DBUG_RETURN(TRUE);
-  }
-  if (read_set->init(no_fields+1) || write_set->init(no_fields+1))
+  read_set= (MY_BITMAP*)sql_alloc(sizeof(MY_BITMAP));
+  write_set= (MY_BITMAP*)sql_alloc(sizeof(MY_BITMAP));
+  read_buf= (uchar*)sql_alloc(bitmap_size);
+  write_buf= (uchar*)sql_alloc(bitmap_size);
+  DBUG_ASSERT(!bitmap_init(read_set, read_buf, (no_fields+1), FALSE));
+  DBUG_ASSERT(!bitmap_init(write_set, write_buf, (no_fields+1), FALSE));
+  if (!read_set || !write_set || !read_buf || !write_buf)
   {
     ha_deallocate_read_write_set();
     DBUG_RETURN(TRUE);
@@ -1378,8 +1379,6 @@ int handler::ha_allocate_read_write_set(ulong no_fields)
 void handler::ha_deallocate_read_write_set()
 {
   DBUG_ENTER("ha_deallocate_read_write_set");
-  delete read_set;
-  delete write_set;
   read_set=write_set=0;
   DBUG_VOID_RETURN;
 }
@@ -1387,127 +1386,17 @@ void handler::ha_deallocate_read_write_set()
 void handler::ha_clear_all_set()
 {
   DBUG_ENTER("ha_clear_all_set");
-  read_set->clear_all();
-  write_set->clear_all();
-  read_set->set_bit((uint)0);
-  write_set->set_bit((uint)0);
-  DBUG_VOID_RETURN;
-}
-
-void handler::ha_set_all_bits_in_read_set()
-{
-  DBUG_ENTER("ha_set_all_bits_in_read_set");
-  read_set->set_all();
-  DBUG_VOID_RETURN;
-}
-
-void handler::ha_set_all_bits_in_write_set()
-{
-  DBUG_ENTER("ha_set_all_bits_in_write_set");
-  write_set->set_all();
-  DBUG_VOID_RETURN;
-}
-
-void handler::ha_set_bit_in_read_set(uint fieldnr)
-{
-  DBUG_ENTER("ha_set_bit_in_read_set");
-  DBUG_PRINT("info", ("fieldnr = %d", fieldnr));
-  read_set->set_bit((size_t)fieldnr);
-  DBUG_VOID_RETURN;
-}
-
-void handler::ha_clear_bit_in_read_set(uint fieldnr)
-{
-  DBUG_ENTER("ha_clear_bit_in_read_set");
-  DBUG_PRINT("info", ("fieldnr = %d", fieldnr));
-  read_set->clear_bit((size_t)fieldnr);
-  DBUG_VOID_RETURN;
-}
-
-void handler::ha_set_bit_in_write_set(uint fieldnr)
-{
-  DBUG_ENTER("ha_set_bit_in_write_set");
-  DBUG_PRINT("info", ("fieldnr = %d", fieldnr));
-  write_set->set_bit((size_t)fieldnr);
-  DBUG_VOID_RETURN;
-}
-
-void handler::ha_clear_bit_in_write_set(uint fieldnr)
-{
-  DBUG_ENTER("ha_clear_bit_in_write_set");
-  DBUG_PRINT("info", ("fieldnr = %d", fieldnr));
-  write_set->clear_bit((size_t)fieldnr);
-  DBUG_VOID_RETURN;
-}
-
-void handler::ha_set_bit_in_rw_set(uint fieldnr, bool write_op)
-{
-  DBUG_ENTER("ha_set_bit_in_rw_set");
-  if (!write_op) {
-    DBUG_PRINT("info", ("Set bit %u in read set", fieldnr));
-    read_set->set_bit((size_t)fieldnr);
-  }
-  else
-  {
-    DBUG_PRINT("info", ("Set bit %u in read and write set", fieldnr));
-    read_set->set_bit((size_t)fieldnr);
-    write_set->set_bit((size_t)fieldnr);
-  }
+  bitmap_clear_all(read_set);
+  bitmap_clear_all(write_set);
+  bitmap_set_bit(read_set, 0);
+  bitmap_set_bit(write_set, 0);
   DBUG_VOID_RETURN;
 }
 
-bool handler::ha_get_bit_in_read_set(uint fieldnr)
-{
-  bool bit_set=read_set->get_bit((size_t)fieldnr);
-  DBUG_ENTER("ha_get_bit_in_read_set");
-  DBUG_PRINT("info", ("bit %u = %u", fieldnr, bit_set));
-  DBUG_RETURN(bit_set);
-}
-
-bool handler::ha_get_bit_in_write_set(uint fieldnr)
-{
-  bool bit_set=write_set->get_bit((size_t)fieldnr);
-  DBUG_ENTER("ha_get_bit_in_write_set");
-  DBUG_PRINT("info", ("bit %u = %u", fieldnr, bit_set));
-  DBUG_RETURN(bit_set);
-}
-
-bool handler::ha_get_all_bit_in_read_set()
-{
-  bool bit_set=read_set->get_all_bits_set();
-  DBUG_ENTER("ha_get_all_bit_in_read_set");
-  DBUG_PRINT("info", ("all bits set = %u", bit_set));
-  DBUG_RETURN(bit_set);
-}
-
-bool handler::ha_get_all_bit_in_read_clear()
-{
-  bool bit_set=read_set->get_all_bits_clear();
-  DBUG_ENTER("ha_get_all_bit_in_read_clear");
-  DBUG_PRINT("info", ("all bits clear = %u", bit_set));
-  DBUG_RETURN(bit_set);
-}
-
-bool handler::ha_get_all_bit_in_write_set()
-{
-  bool bit_set=write_set->get_all_bits_set();
-  DBUG_ENTER("ha_get_all_bit_in_write_set");
-  DBUG_PRINT("info", ("all bits set = %u", bit_set));
-  DBUG_RETURN(bit_set);
-}
-
-bool handler::ha_get_all_bit_in_write_clear()
-{
-  bool bit_set=write_set->get_all_bits_clear();
-  DBUG_ENTER("ha_get_all_bit_in_write_clear");
-  DBUG_PRINT("info", ("all bits clear = %u", bit_set));
-  DBUG_RETURN(bit_set);
-}
-
 int handler::ha_retrieve_all_cols()
 {
   DBUG_ENTER("handler::ha_retrieve_all_cols");
-  read_set->set_all();
+  bitmap_set_all(read_set);
   DBUG_RETURN(0);
 }
 

sql/handler.h

@@ -486,8 +486,8 @@ public:
   bool  auto_increment_column_changed;
   bool implicit_emptied;                /* Can be !=0 only if HEAP */
   const COND *pushed_cond;
-  bitvector *read_set;
-  bitvector *write_set;
+  MY_BITMAP *read_set;
+  MY_BITMAP *write_set;
 
   handler(TABLE *table_arg) :table(table_arg),
     ref(0), data_file_length(0), max_data_file_length(0), index_file_length(0),
@@ -497,7 +497,7 @@ public:
     key_used_on_scan(MAX_KEY), active_index(MAX_KEY),
     ref_length(sizeof(my_off_t)), block_size(0),
     raid_type(0), ft_handler(0), inited(NONE), implicit_emptied(0),
-    pushed_cond(NULL), read_set(0), write_set(0)
+    pushed_cond(NULL)
     {}
   virtual ~handler(void)
   {
@@ -597,24 +597,107 @@ public:
   */
   virtual int ha_retrieve_all_cols();
   virtual int ha_retrieve_all_pk();
-  void ha_set_all_bits_in_read_set();
-  void ha_set_all_bits_in_write_set();
-  void ha_set_bit_in_read_set(uint fieldnr);
-  void ha_clear_bit_in_read_set(uint fieldnr);
-  void ha_set_bit_in_write_set(uint fieldnr);
-  void ha_clear_bit_in_write_set(uint fieldnr);
-  void ha_set_bit_in_rw_set(uint fieldnr, bool write_set);
-  bool ha_get_bit_in_read_set(uint fieldnr);
-  bool ha_get_bit_in_write_set(uint fieldnr);
-  bool ha_get_all_bit_in_read_set();
-  bool ha_get_all_bit_in_read_clear();
-  bool ha_get_all_bit_in_write_set();
-  bool ha_get_all_bit_in_write_clear();
+  void ha_set_all_bits_in_read_set()
+  {
+    DBUG_ENTER("ha_set_all_bits_in_read_set");
+    bitmap_set_all(read_set);
+    DBUG_VOID_RETURN;
+  }
+  void ha_set_all_bits_in_write_set()
+  {
+    DBUG_ENTER("ha_set_all_bits_in_write_set");
+    bitmap_set_all(write_set);
+    DBUG_VOID_RETURN;
+  }
+  void ha_set_bit_in_read_set(uint fieldnr)
+  {
+    DBUG_ENTER("ha_set_bit_in_read_set");
+    DBUG_PRINT("info", ("fieldnr = %d", fieldnr));
+    bitmap_set_bit(read_set, fieldnr);
+    DBUG_VOID_RETURN;
+  }
+  void ha_clear_bit_in_read_set(uint fieldnr)
+  {
+    DBUG_ENTER("ha_clear_bit_in_read_set");
+    DBUG_PRINT("info", ("fieldnr = %d", fieldnr));
+    bitmap_clear_bit(read_set, fieldnr);
+    DBUG_VOID_RETURN;
+  }
+  void ha_set_bit_in_write_set(uint fieldnr)
+  {
+    DBUG_ENTER("ha_set_bit_in_write_set");
+    DBUG_PRINT("info", ("fieldnr = %d", fieldnr));
+    bitmap_set_bit(write_set, fieldnr);
+    DBUG_VOID_RETURN;
+  }
+  void ha_clear_bit_in_write_set(uint fieldnr)
+  {
+    DBUG_ENTER("ha_clear_bit_in_write_set");
+    DBUG_PRINT("info", ("fieldnr = %d", fieldnr));
+    bitmap_clear_bit(write_set, fieldnr);
+    DBUG_VOID_RETURN;
+  }
+  void ha_set_bit_in_rw_set(uint fieldnr, bool write_op)
+  {
+    DBUG_ENTER("ha_set_bit_in_rw_set");
+    DBUG_PRINT("info", ("Set bit %u in read set", fieldnr));
+    bitmap_set_bit(read_set, fieldnr);
+    if (!write_op) {
+      DBUG_VOID_RETURN;
+    }
+    else
+    {
+      DBUG_PRINT("info", ("Set bit %u in read and write set", fieldnr));
+      bitmap_set_bit(write_set, fieldnr);
+    }
+    DBUG_VOID_RETURN;
+  }
+  bool ha_get_bit_in_read_set(uint fieldnr)
+  {
+    bool bit_set=bitmap_is_set(read_set,fieldnr);
+    DBUG_ENTER("ha_get_bit_in_read_set");
+    DBUG_PRINT("info", ("bit %u = %u", fieldnr, bit_set));
+    DBUG_RETURN(bit_set);
+  }
+  bool ha_get_bit_in_write_set(uint fieldnr)
+  {
+    bool bit_set=bitmap_is_set(write_set,fieldnr);
+    DBUG_ENTER("ha_get_bit_in_write_set");
+    DBUG_PRINT("info", ("bit %u = %u", fieldnr, bit_set));
+    DBUG_RETURN(bit_set);
+  }
+  bool ha_get_all_bit_in_read_set()
+  {
+    bool all_bits_set= bitmap_is_set_all(read_set);
+    DBUG_ENTER("ha_get_all_bit_in_read_set");
+    DBUG_PRINT("info", ("all bits set = %u", all_bits_set));
+    DBUG_RETURN(all_bits_set);
+  }
+  bool ha_get_all_bit_in_read_clear()
+  {
+    bool all_bits_set= bitmap_is_clear_all(read_set);
+    DBUG_ENTER("ha_get_all_bit_in_read_clear");
+    DBUG_PRINT("info", ("all bits clear = %u", all_bits_set));
+    DBUG_RETURN(all_bits_set);
+  }
+  bool ha_get_all_bit_in_write_set()
+  {
+    bool all_bits_set= bitmap_is_set_all(write_set);
+    DBUG_ENTER("ha_get_all_bit_in_write_set");
+    DBUG_PRINT("info", ("all bits set = %u", all_bits_set));
+    DBUG_RETURN(all_bits_set);
+  }
+  bool ha_get_all_bit_in_write_clear()
+  {
+    bool all_bits_set= bitmap_is_clear_all(write_set);
+    DBUG_ENTER("ha_get_all_bit_in_write_clear");
+    DBUG_PRINT("info", ("all bits clear = %u", all_bits_set));
+    DBUG_RETURN(all_bits_set);
+  }
   void ha_set_primary_key_in_read_set();
   int ha_allocate_read_write_set(ulong no_fields);
   void ha_deallocate_read_write_set();
   void ha_clear_all_set();
-
   uint get_index(void) const { return active_index; }
   virtual int open(const char *name, int mode, uint test_if_locked)=0;
   virtual int close(void)=0;

sql/opt_range.cc

@@ -1566,7 +1566,8 @@ static int fill_used_fields_bitmap(PARAM *param)
   param->fields_bitmap_size= (table->s->fields/8 + 1);
   uchar *tmp;
   uint pk;
-  if (!(tmp= (uchar*)alloc_root(param->mem_root,param->fields_bitmap_size)) ||
+  if (!(tmp= (uchar*)alloc_root(param->mem_root,
+    bytes_word_aligned(param->fields_bitmap_size))) ||
       bitmap_init(&param->needed_fields, tmp, param->fields_bitmap_size*8,
                   FALSE))
     return 1;
@@ -2321,7 +2322,7 @@ ROR_SCAN_INFO *make_ror_scan(const PARAM *param, int idx, SEL_ARG *sel_arg)
   ror_scan->records= param->table->quick_rows[keynr];
 
   if (!(bitmap_buf= (uchar*)alloc_root(param->mem_root,
-                                      param->fields_bitmap_size)))
+                            bytes_word_aligned(param->fields_bitmap_size))))
     DBUG_RETURN(NULL);
 
   if (bitmap_init(&ror_scan->covered_fields, bitmap_buf,
@@ -2441,7 +2442,8 @@ ROR_INTERSECT_INFO* ror_intersect_init(const PARAM *param)
                                               sizeof(ROR_INTERSECT_INFO))))
     return NULL;
   info->param= param;
-  if (!(buf= (uchar*)alloc_root(param->mem_root, param->fields_bitmap_size)))
+  if (!(buf= (uchar*)alloc_root(param->mem_root,
+                             bytes_word_aligned(param->fields_bitmap_size))))
     return NULL;
   if (bitmap_init(&info->covered_fields, buf, param->fields_bitmap_size*8,
                   FALSE))
@@ -2998,7 +3000,8 @@ TRP_ROR_INTERSECT *get_best_covering_ror_intersect(PARAM *param,
   /*I=set of all covering indexes */
   ror_scan_mark= tree->ror_scans;
 
-  uchar buf[MAX_KEY/8+1];
+  uint32 int_buf[MAX_KEY/32+1];
+  uchar *buf= (uchar*)&int_buf;
   MY_BITMAP covered_fields;
   if (bitmap_init(&covered_fields, buf, nbits, FALSE))
     DBUG_RETURN(0);

sql/sql_bitmap.h

@@ -25,7 +25,7 @@
 template <uint default_width> class Bitmap
 {
   MY_BITMAP map;
-  uchar buffer[(default_width+7)/8];
+  uint32 buffer[(default_width+31)/32];
 public:
   Bitmap() { init(); }
   Bitmap(Bitmap& from) { *this=from; }
@@ -62,17 +62,18 @@ public:
   char *print(char *buf) const
   {
     char *s=buf; int i;
+    uchar *uchar_buffer= (uchar*)&buffer;
     for (i=sizeof(buffer)-1; i>=0 ; i--)
     {
-      if ((*s=_dig_vec_upper[buffer[i] >> 4]) != '0')
+      if ((*s=_dig_vec_upper[uchar_buffer[i] >> 4]) != '0')
         break;
-      if ((*s=_dig_vec_upper[buffer[i] & 15]) != '0')
+      if ((*s=_dig_vec_upper[uchar_buffer[i] & 15]) != '0')
         break;
     }
     for (s++, i-- ; i>=0 ; i--)
     {
-      *s++=_dig_vec_upper[buffer[i] >> 4];
-      *s++=_dig_vec_upper[buffer[i] & 15];
+      *s++=_dig_vec_upper[uchar_buffer[i] >> 4];
+      *s++=_dig_vec_upper[uchar_buffer[i] & 15];
     }
     *s=0;
     return buf;

sql/sql_select.cc

@@ -7946,7 +7946,7 @@ create_tmp_table(THD *thd,TMP_TABLE_PARAM *param,List<Item> &fields,
   statistic_increment(thd->status_var.created_tmp_tables, &LOCK_status);
 
   if (use_temp_pool)
-    temp_pool_slot = bitmap_set_next(&temp_pool);
+    temp_pool_slot = bitmap_lock_set_next(&temp_pool);
 
   if (temp_pool_slot != MY_BIT_NONE) // we got a slot
     sprintf(filename, "%s_%lx_%i", tmp_file_prefix,
@@ -7998,12 +7998,12 @@ create_tmp_table(THD *thd,TMP_TABLE_PARAM *param,List<Item> &fields,
 		       param->group_length : 0,
 		       NullS))
   {
-    bitmap_clear_bit(&temp_pool, temp_pool_slot);
+    bitmap_lock_clear_bit(&temp_pool, temp_pool_slot);
     DBUG_RETURN(NULL);				/* purecov: inspected */
   }
   if (!(param->copy_field=copy=new Copy_field[field_count]))
   {
-    bitmap_clear_bit(&temp_pool, temp_pool_slot);
+    bitmap_lock_clear_bit(&temp_pool, temp_pool_slot);
     my_free((gptr) table,MYF(0));		/* purecov: inspected */
     DBUG_RETURN(NULL);				/* purecov: inspected */
   }
@@ -8449,7 +8449,7 @@ create_tmp_table(THD *thd,TMP_TABLE_PARAM *param,List<Item> &fields,
 
  err:
   free_tmp_table(thd,table);                    /* purecov: inspected */
-  bitmap_clear_bit(&temp_pool, temp_pool_slot);
+  bitmap_lock_clear_bit(&temp_pool, temp_pool_slot);
   DBUG_RETURN(NULL);				/* purecov: inspected */
 }
 
@@ -8723,7 +8723,7 @@ free_tmp_table(THD *thd, TABLE *entry)
   my_free((gptr) entry->record[0],MYF(0));
   free_io_cache(entry);
 
-  bitmap_clear_bit(&temp_pool, entry->temp_pool_slot);
+  bitmap_lock_clear_bit(&temp_pool, entry->temp_pool_slot);
 
   my_free((gptr) entry,MYF(0));
   thd->proc_info=save_proc_info;