bd_may_claim 1048 fs/block_dev.c else if (whole->bd_holder == bd_may_claim) bd_may_claim 1079 fs/block_dev.c if (!bd_may_claim(bdev, whole, holder)) bd_may_claim 1214 fs/block_dev.c BUG_ON(!bd_may_claim(bdev, whole, holder)); bd_may_claim 1220 fs/block_dev.c whole->bd_holder = bd_may_claim;