540 static bool bd_may_claim(struct block_device *bdev, struct block_device *whole,  in bd_may_claim()  argument
547 	else if (whole == bdev)  in bd_may_claim()
550 	else if (whole->bd_holder == bd_may_claim)  in bd_may_claim()
552 	else if (whole->bd_holder != NULL)  in bd_may_claim()
572 	struct block_device *whole = bdev_whole(bdev);  in bd_prepare_to_claim()  local
579 	if (!bd_may_claim(bdev, whole, holder)) {  in bd_prepare_to_claim()
585 	if (whole->bd_claiming) {  in bd_prepare_to_claim()
586 		wait_queue_head_t *wq = bit_waitqueue(&whole->bd_claiming, 0);  in bd_prepare_to_claim()
597 	whole->bd_claiming = holder;  in bd_prepare_to_claim()
603 static void bd_clear_claiming(struct block_device *whole, void *holder)  in bd_clear_claiming()  argument
607 	BUG_ON(whole->bd_claiming != holder);  in bd_clear_claiming()
608 	whole->bd_claiming = NULL;  in bd_clear_claiming()
609 	wake_up_bit(&whole->bd_claiming, 0);  in bd_clear_claiming()
622 	struct block_device *whole = bdev_whole(bdev);  in bd_finish_claiming()  local
625 	BUG_ON(!bd_may_claim(bdev, whole, holder));  in bd_finish_claiming()
630 	whole->bd_holders++;  in bd_finish_claiming()
631 	whole->bd_holder = bd_may_claim;  in bd_finish_claiming()
634 	bd_clear_claiming(whole, holder);  in bd_finish_claiming()
724 	struct block_device *whole = bdev_whole(part);  in blkdev_put_part()  local
729 	whole->bd_disk->open_partitions--;  in blkdev_put_part()
730 	blkdev_put_whole(whole, mode);  in blkdev_put_part()
914 		struct block_device *whole = bdev_whole(bdev);  in blkdev_put()  local
925 		WARN_ON_ONCE(--whole->bd_holders < 0);  in blkdev_put()
929 		if (!whole->bd_holders)  in blkdev_put()
930 			whole->bd_holder = NULL;  in blkdev_put()