static struct page_list *dequeue_page(struct bitmap *bitmap, struct list_head *head) 
static struct page_list *dequeue_page(struct bitmap *bitmap) 
static struct page_list *dequeue_page(struct bitmap *bitmap,					struct list_head *head){	struct page_list *item = NULL;	spin_lock(&bitmap->write_lock);	if (list_empty(head))		goto out;	item = list_entry(head->prev, struct page_list, list);	list_del(head->prev);out:	spin_unlock(&bitmap->write_lock);	return item;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/77ad4bc706fe6c52ab953f31c287a6af712d080c/bitmap.c/buggy/drivers/md/bitmap.c