1052 static bool bd_may_claim(struct block_device *bdev, struct block_device *whole,  in bd_may_claim()  argument
1059 	else if (whole == bdev)  in bd_may_claim()
1062 	else if (whole->bd_holder == bd_may_claim)  in bd_may_claim()
1064 	else if (whole->bd_holder != NULL)  in bd_may_claim()
1083 int bd_prepare_to_claim(struct block_device *bdev, struct block_device *whole,  in bd_prepare_to_claim()  argument
1089 	if (!bd_may_claim(bdev, whole, holder)) {  in bd_prepare_to_claim()
1095 	if (whole->bd_claiming) {  in bd_prepare_to_claim()
1096 		wait_queue_head_t *wq = bit_waitqueue(&whole->bd_claiming, 0);  in bd_prepare_to_claim()
1107 	whole->bd_claiming = holder;  in bd_prepare_to_claim()
1134 static void bd_clear_claiming(struct block_device *whole, void *holder)  in bd_clear_claiming()  argument
1138 	BUG_ON(whole->bd_claiming != holder);  in bd_clear_claiming()
1139 	whole->bd_claiming = NULL;  in bd_clear_claiming()
1140 	wake_up_bit(&whole->bd_claiming, 0);  in bd_clear_claiming()
1153 		struct block_device *whole, void *holder)  in bd_finish_claiming()  argument
1156 	BUG_ON(!bd_may_claim(bdev, whole, holder));  in bd_finish_claiming()
1161 	whole->bd_holders++;  in bd_finish_claiming()
1162 	whole->bd_holder = bd_may_claim;  in bd_finish_claiming()
1165 	bd_clear_claiming(whole, holder);  in bd_finish_claiming()
1179 void bd_abort_claiming(struct block_device *bdev, struct block_device *whole,  in bd_abort_claiming()  argument
1183 	bd_clear_claiming(whole, holder);  in bd_abort_claiming()
1470 	struct block_device *whole = NULL, *claiming = NULL;  in __blkdev_get()  local
1484 		whole = bdget_disk(disk, 0);  in __blkdev_get()
1485 		if (!whole) {  in __blkdev_get()
1493 		if (whole)  in __blkdev_get()
1494 			claiming = whole;  in __blkdev_get()
1546 			ret = __blkdev_get(whole, mode, NULL, 1);  in __blkdev_get()
1549 			bdev->bd_contains = bdgrab(whole);  in __blkdev_get()
1600 	if (whole)  in __blkdev_get()
1601 		bdput(whole);  in __blkdev_get()
1617  	if (whole)  in __blkdev_get()
1618 		bdput(whole);  in __blkdev_get()