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-rw-r--r--mysys/my_bitmap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mysys/my_bitmap.c b/mysys/my_bitmap.c
index a80aafd5605..f30298922df 100644
--- a/mysys/my_bitmap.c
+++ b/mysys/my_bitmap.c
@@ -34,7 +34,7 @@ my_bool bitmap_init(MY_BITMAP *map, uint bitmap_size)
return 1;
dbug_assert(bitmap_size != ~(uint) 0);
#ifdef THREAD
- pthread_mutex_init(&map->mutex, NULL);
+ pthread_mutex_init(&map->mutex, MY_MUTEX_INIT_FAST);
#endif
map->bitmap_size=bitmap_size;
return 0;